Publications

Book chapters
Journal articles
Conferences

Book chapters

V. Milosevic, B. Jokanovic, O. Boric-Lubecke, and V. M. Lubecke, “Key Microwave and Millimeter Wave Technologies for 5G Radio,” in Powering the Internet of Things With 5G Networks, V. Mohanan, R. Budiarto, and I. Aldmour, Eds. Hershey, PA: IGI Global, 2017.
BibTeX Abstract

This chapter presents an overview on the drivers behind the 5G evolution and explains technological breakthroughs in the microwave and millimeter wave domain that will create the 5G backbone. Extensions to millimeter wave frequency bands, advanced multi-antenna systems and antenna beamforming and simultaneous transmission and reception are some of the prospects that could lead to both architectural and component disruptive design changes in the future 5G. 5G is expected to include an innovative set of technologies that will radically change our private and professional lives, though applications of novel services, such as remote healthcare, driverless cars, wireless robots and connected homes, which will alter boundaries between the real and the cyber world.
```
@incollection{keymm,
  author = {Milosevic, Vojislav and Jokanovic, Branka and Boric-Lubecke, Olga and Lubecke, Victor M},
  title = {Key Microwave and Millimeter Wave Technologies for {5G} Radio},
  editor = {Mohanan, Vasuky and Budiarto, Rahmat and Aldmour, Ismat},
  booktitle = {Powering the Internet of Things With 5G Networks},
  publisher = {IGI Global},
  address = {Hershey, PA},
  year = {2017}
}
```

Journal articles

V. Milosevic, R. Bojanic, and B. Jokanovic, “Analytical modeling of antisymmetric split-ring resonators coupled with transmission line,” International Journal of Microwave and Wireless Technologies, vol. 11, no. 4, pp. 359–367, 2019.
10.1017/S1759078719000308

BibTeX Abstract Download

Coupled-mode theory is applied to obtain an analytic form of scattering parameters for a class of transmission line metamaterials with antisymmetric split-rings. The same structure is modeled with equivalent circuit, which includes electric and magnetic coupling with the line and inter-resonator coupling. Modified even/odd analysis is used to obtain scattering parameters from the equivalent circuit. These two methods are shown to be equivalent in a narrow band, and their constants related. The obtained results are compared with full-wave simulations and measurements, and it is shown that both methods give accurate approximation in one octave frequency band. The derived analytic expressions are suitable for study of resonant phenomena, with potential practical applications for filters, phase shifters, delay lines, and sensors.
```
@article{mrf19,
  title = {Analytical modeling of antisymmetric split-ring resonators coupled with transmission line},
  volume = {11},
  doi = {10.1017/S1759078719000308},
  number = {4},
  journal = {International Journal of Microwave and Wireless Technologies},
  publisher = {Cambridge University Press},
  author = {Milosevic, Vojislav and Bojanic, Radovan and Jokanovic, Branka},
  year = {2019},
  pages = {359–367}
}
```
N. Boskovic, B. Jokanovic, M. Radovanovic, and N. S. Doncov, “Novel Ku-Band Series-Fed Patch Antenna Array With Enhanced Impedance and Radiation Bandwidth,” IEEE Transactions on Antennas and Propagation, vol. 66, no. 12, pp. 7041–7048, Dec. 2018.
10.1109/TAP.2018.2874515

BibTeX Abstract

In this paper, a novel design of a patch antenna with two symmetrical slits and two closely spaced resonances is proposed. A novel patch antenna demonstrates a great flexibility in impedances adjustment at both resonances that are of a great importance in the design of series-fed antenna arrays with a large number of radiating elements. Printed antenna with two linear arrays consisting of 16 serially fed patches is designed and fabricated. Measured results agree very well with simulations. The antenna operation frequency range is 15.6-17.3 GHz that is 10.3% of a relative bandwidth. The measured antenna gain is 19.5 dBi with a small variation of 1.2 dB within the whole operating bandwidth, sidelobe levels are below -22 dB in the H-plane and -11.5 dB in the E-plane. The half-power beamwidth is less than 8° and 40°, in H- and E-planes, respectively. The antenna array exhibits the enhanced impedance and radiation bandwidth in comparison with similar antenna structures and is very suitable for various radar applications, notably for compact, low-cost frequency-modulated continuous wave systems.
```
@article{8485633,
  author = {{Boskovic}, N. and {Jokanovic}, B. and {Radovanovic}, M. and {Doncov}, N. S.},
  journal = {IEEE Transactions on Antennas and Propagation},
  title = {Novel Ku-Band Series-Fed Patch Antenna Array With Enhanced Impedance and Radiation Bandwidth},
  year = {2018},
  volume = {66},
  number = {12},
  pages = {7041-7048},
  keywords = {antenna feeds;antenna radiation patterns;broadband antennas;microstrip antenna arrays;microwave antenna arrays;Ku-band series-fed patch antenna array;patch antenna;operating bandwidth;antenna gain;relative bandwidth;antenna operation frequency range;linear arrays;printed antenna;radiating elements;series-fed antenna arrays;impedances adjustment;closely spaced resonances;symmetrical slits;radiation bandwidth;frequency 15.6 GHz to 17.3 GHz;Patch antennas;Impedance;Antenna arrays;Bandwidth;Resonant frequency;Antenna radiation patterns;Antenna radiation pattern;directive antennas;microstrip arrays;radar antennas},
  doi = {10.1109/TAP.2018.2874515},
  issn = {0018-926X},
  month = dec
}
```
M. Radovanovic and B. Jokanovic, “Dual-Band Filter Inspired by ENZ Waveguide,” IEEE Microwave and Wireless Components Letters, vol. 27, no. 6, pp. 554–556, Jun. 2017.
10.1109/LMWC.2017.2701337

BibTeX Abstract

This letter presents a novel design of the third-order dual-band filter operating in the frequency band 10-15 GHz. The filter consists of two rectangular cavities filled with foam dielectric and connected by an ultrathin waveguide channel, which mimics the epsilon-near-zero metamaterial. Each resonator is designed to support two propagating modes-one per each passband. By changing the filter dimensions for which we have derived analytical expressions, it is possible to change the center frequency of both passbands, their fractional bandwidths, and the position of the transmission zero between passbands.
```
@article{7934074,
  author = {Radovanovic, M. and Jokanovic, B.},
  journal = {IEEE Microwave and Wireless Components Letters},
  title = {Dual-Band Filter Inspired by ENZ Waveguide},
  year = {2017},
  volume = {27},
  number = {6},
  pages = {554-556},
  keywords = {foams;microwave filters;microwave metamaterials;resonator filters;waveguide filters;ENZ waveguide;epsilon-near-zero metamaterial;foam dielectric;frequency 10 GHz to 15 GHz;propagating modes;rectangular cavities;resonator design;third-order dual-band filter;transmission zero position;ultrathin waveguide channel;Bandwidth;Dual band;Microwave filters;Optical waveguides;Passband;Pins;Resonant frequency;Dual-band filter;waveguide;waveguide multimode resonator},
  doi = {10.1109/LMWC.2017.2701337},
  issn = {1531-1309},
  month = jun
}
```
N. Boskovic, B. Jokanovic, and M. Radovanovic, “Printed Frequency Scanning Antenna Arrays With Enhanced Frequency Sensitivity and Sidelobe Suppression,” IEEE Transactions on Antennas and Propagation, vol. 65, no. 4, pp. 1757–1764, Apr. 2017.
10.1109/TAP.2017.2670528

BibTeX Abstract

This paper presents a novel design of the 1-D frequency scanning antenna array with enhanced scan sector, frequency sensitivity, and sidelobe suppression. The antenna is intended for the direct imaging radar sensors. Modified pentagonal dipoles with impedances ranging from 120 to 1070 Ω are used as radiating elements to provide the required sidelobe suppression. For the antenna design, new types of phase shifters are considered, with respect to their insertion loss, frequency bandwidth, phase shift, and manufacturing simplicity: the double-cell left-handed shifter and its right-handed counterpart. Four linear arrays with eight pentagonal dipoles are combined to obtain the antenna array with higher gain and narrower main beam with respect to constituent linear arrays, but with almost identical H-plane scanning properties. The proposed antenna array was manufactured, and the measured results show an increased scan sector of 55°, high frequency sensitivity of 14.25°/100 MHz, gain of 15.5-17 dBi, and low sidelobe levels of around -20 dB in the whole scanning frequency range. Measured results are in very good agreement with simulations.
```
@article{test2,
  author = {Boskovic, N. and Jokanovic, B. and Radovanovic, M.},
  journal = {IEEE Transactions on Antennas and Propagation},
  title = {Printed Frequency Scanning Antenna Arrays With Enhanced Frequency Sensitivity and Sidelobe Suppression},
  year = {2017},
  volume = {65},
  number = {4},
  pages = {1757-1764},
  keywords = {dipole antenna arrays;linear antenna arrays;microstrip antenna arrays;microwave phase shifters;radar antennas;radar receivers;scanning antennas;1D frequency scanning antenna array;H-plane scanning properties;antenna array;direct imaging radar sensor;double-cell left-handed shifter;frequency sensitivity;insertion loss;linear arrays;pentagonal dipole;phase shifter;printed frequency scanning antenna array;radiating element;resistance 120 ohm to 1070 ohm;right-handed counterpart;scan sector;sidelobe suppression;Dipole antennas;Insertion loss;Linear antenna arrays;Phase shifters;Phased arrays;Sensitivity;Dipole arrays;phase shifters;phased arrays;sidelobe suppression},
  doi = {10.1109/TAP.2017.2670528},
  issn = {0018-926X},
  month = apr
}
```
M. Ninic, B. Jokanovic, and P. Meyer, “Reconfigurable Multi-State Composite Split-Ring Resonators,” IEEE Microwave and Wireless Components Letters, vol. 26, no. 4, pp. 267–269, Apr. 2016.
10.1109/LMWC.2016.2537790

BibTeX Abstract

We present two versions of the reconfigurable composite triple split-ring resonators (C3SRRs). Reconfigurability is achieved by means of the de-tuning technique that enables obtaining different dual-band and single-band composite resonators from one triple-band topology. Five different configurations are obtained using the first topology: one triple-band, two dual-band and two single-band C3SRRs. The second topology provides seven different configurations: one triple-band, three dual-band and three single-band C3SRRs. PIN diodes are used as switching elements, which are placed on the vertical branches of split-ring resonators so that the filter insertion loss does not increase. Measured and simulated data are compared and excellent agreement is obtained.
```
@article{7434572,
  author = {Ninic, M. and Jokanovic, B. and Meyer, P.},
  journal = {IEEE Microwave and Wireless Components Letters},
  title = {Reconfigurable Multi-State Composite Split-Ring Resonators},
  year = {2016},
  volume = {26},
  number = {4},
  pages = {267-269},
  keywords = {circuit tuning;p-i-n diodes;resonators;C3SRR;PIN diode;detuning technique;filter insertion loss;reconfigurable multistate composite triple split-ring resonator;triple-band topology;Dual band;Insertion loss;PIN photodiodes;Passband;Resonant frequency;Topology;Wireless communication;Composite split-ring resonator;PIN diode;de-tuning;multiband resonator;passband;resonant frequency},
  doi = {10.1109/LMWC.2016.2537790},
  issn = {1531-1309},
  month = apr
}
```

N. Vojnovic, B. Jokanovic, and M. Radovanovic, “Short Slots as Resonance Tuning Elements in Rectangular ENZ Waveguide,” Microwave Review, vol. 21, no. 2, pp. 14–18, Dec. 2015.


BibTeX

@article{mr01,
  author = {Vojnovic, N. and Jokanovic, B. and Radovanovic, M.},
  title = {Short Slots as Resonance Tuning Elements in Rectangular {ENZ} Waveguide},
  journal = {Microwave Review},
  volume = {21},
  number = {2},
  pages = {14-18},
  month = dec,
  year = {2015}
}

B. Jokanovic, N. Boskovic, F. Oliveri, and D. Tarchi, “Highy Directive Patch Antenna Array for FMCW Radar at Ku Band,” Microwave Review, vol. 21, no. 2, pp. 7–13, Dec. 2015.


BibTeX

@article{mr02,
  author = {Jokanovic, B. and Boskovic, N. and Oliveri, F. and Tarchi, D.},
  title = {Highy Directive Patch Antenna Array for {FMCW} Radar at Ku Band},
  journal = {Microwave Review},
  volume = {21},
  number = {2},
  pages = {7-13},
  month = dec,
  year = {2015}
}

N. Vojnovic, B. Jokanovic, M. Radovanovic, F. Medina, and F. Mesa, “Modeling of Nonresonant Longitudinal and Inclined Slots for Resonance Tuning in ENZ Waveguide Structures,” IEEE Transactions on Antennas and Propagation, vol. 63, no. 11, pp. 5107–5113, Nov. 2015.
10.1109/TAP.2015.2473700

BibTeX Abstract

Novel methods are presented for the independent resonance tuning in rectangular waveguide epsilon-near-zero (ENZ) structures. This kind of tuning is achieved using short longitudinal and inclined slots placed in the middle of the ENZ channel. It is demonstrated that the tunneling frequency and Fabry-Pérot resonance (FPR) can be shifted by as much as 8% and 9.7%, respectively. Equivalent circuits for the tuning slots are given, and their equivalent parameters are extracted and validated. Analytical expressions for the equivalent slot reactances are also provided, and they show very good agreement with the extracted parameters. Experimental verification of both presented tuning methods is provided, and the agreement between simulated and experimental results is excellent (error less than 1%).
```
@article{7225147,
  author = {Vojnovic, N. and Jokanovic, B. and Radovanovic, M. and Medina, F. and Mesa, F.},
  journal = {IEEE Transactions on Antennas and Propagation},
  title = {Modeling of Nonresonant Longitudinal and Inclined Slots for Resonance Tuning in ENZ Waveguide Structures},
  year = {2015},
  volume = {63},
  number = {11},
  pages = {5107-5113},
  keywords = {Fabry-Perot resonators;circuit tuning;equivalent circuits;rectangular waveguides;resonant tunnelling;ENZ waveguide structure;FPR;Fabry-Pérot resonance;equivalent circuit;equivalent slot reactance;inclined slot;independent resonance tuning;nonresonant longitudinal slot;rectangular waveguide epsilon-near-zero structure;tuning slot;tunneling frequency;Antennas;Capacitance;Electromagnetic waveguides;Equivalent circuits;Resonant frequency;Tuning;Tunneling;Epsilon-near-zero (ENZ) waveguide;epsilon-near-zero (ENZ) waveguide;;equivalent circuit;frequency tuning;waveguide slots},
  doi = {10.1109/TAP.2015.2473700},
  issn = {0018-926X},
  month = nov
}
```

N. Boskovic, B. Jokanovic, and A. Nesic, “Frequency Scanning Antenna Arrays with Pentagonal Dipoles of Different Impedances,” Serb. J. Electr. Eng., vol. 12, no. 1, pp. 99–108, Feb. 2015.

10.2298/SJEE1501099B
BibTeX

@article{ost01,
  author = {Boskovic, N. and Jokanovic, B. and Nesic, A.},
  title = {Frequency Scanning Antenna Arrays with Pentagonal Dipoles of Different Impedances},
  journal = {Serb. J. Electr. Eng.},
  volume = {12},
  number = {1},
  pages = {99-108},
  month = feb,
  year = {2015},
  doi = {10.2298/SJEE1501099B}
}

R. Bojanic, V. Milosevic, B. Jokanovic, F. Medina-Mena, and F. Mesa, “Enhanced Modelling of Split-Ring Resonators Couplings in Printed Circuits,” IEEE Transactions on Microwave Theory and Techniques, vol. 62, no. 8, pp. 1605–1615, Aug. 2014.
10.1109/TMTT.2014.2332302

BibTeX Abstract

An enhanced equivalent circuit approach for the magnetic/electric interaction of single split-ring resonators (SRRs) with printed lines is presented in this paper. A very simple and efficient lumped-element network is proposed to model the behavior of metamaterial-based printed lines over a wide frequency band. The same circuit topology can be used for the single- and two-mirrored SRRs loaded microstrip line. The corresponding circuit parameters are obtained from the multiconductor transmission line theory as well as from closed-form expressions that make use of just the resonance frequency and minimum of the reflection coefficient (which should be previously extracted from experiments or full-wave simulations). The comparison of our equivalent circuit results with measurements and full-wave simulations has shown a very good agreement in a considerably wider frequency band than other previously proposed simple equivalent circuits.
```
@article{6849505,
  author = {Bojanic, R. and Milosevic, V. and Jokanovic, B. and Medina-Mena, F. and Mesa, F.},
  journal = {IEEE Transactions on Microwave Theory and Techniques},
  title = {Enhanced Modelling of Split-Ring Resonators Couplings in Printed Circuits},
  year = {2014},
  volume = {62},
  number = {8},
  pages = {1605-1615},
  keywords = {coupled circuits;coupled transmission lines;equivalent circuits;metamaterials;microstrip lines;microstrip resonators;mirrors;multiconductor transmission lines;printed circuits;SRR;circuit topology;enhanced equivalent circuit approach;lumped-element network;magnetic-electric interaction;metamaterial-based printed circuit line;multiconductor transmission line theory;single split-ring resonator coupling;single-mirrored SRR loaded microstrip line;two-mirrored SRR loaded microstrip line;Couplings;Equivalent circuits;Integrated circuit modeling;Load modeling;Microstrip;Resonant frequency;Transmission line measurements;Coupled transmission lines;equivalent circuit;metamaterial;microstrip line;split-ring resonator},
  doi = {10.1109/TMTT.2014.2332302},
  issn = {0018-9480},
  month = aug
}
```
V. Milosevic, B. Jokanovic, and R. Bojanic, “Retrieval and validation of the effective constitutive parameters of bianisotropic metamaterials,” Physica Scripta, vol. 2014, no. T162, p. 014046, 2014.
BibTeX Abstract

In this paper we present the exact bianisotropic parameter retrieval procedure for the case of transmission line metamaterials. The procedure assigns two different sets of effective parameters for two directions of propagation, which can be modelled by a bianisotropic medium. The procedure is applied to a microstrip line loaded with asymmetric edge-coupled split-ring resonators with gaps parallel and perpendicular to the line. The standard Nicolson-Ross-Weir procedure based on averaging of the S -parameters is not applicable to this case due to pronounced asymmetry. We also present the reverse procedure, which recovers the original S -parameters using the extracted effective permittivity and permeability, that fully validates the correctness of the proposed retrieval method.
```
@article{1402-4896-2014-T162-014046,
  author = {Milosevic, V and Jokanovic, B and Bojanic, R},
  title = {Retrieval and validation of the effective constitutive parameters of bianisotropic metamaterials},
  journal = {Physica Scripta},
  volume = {2014},
  number = {T162},
  pages = {014046},
  url = {http://stacks.iop.org/1402-4896/2014/i=T162/a=014046},
  year = {2014}
}
```

V. Milosevic, B. Jokanovic, R. Bojanic, and B. Jelenkovic, “Classical Electromagnetically Induced Transparency in Metamaterials,” Microwave Review, vol. 19, no. 2, pp. 76–81, Dec. 2013.


BibTeX

@article{mr03,
  author = {Milosevic, V. and Jokanovic, B. and Bojanic, R. and Jelenkovic, B.},
  title = {Classical Electromagnetically Induced Transparency in Metamaterials},
  journal = {Microwave Review},
  volume = {19},
  number = {2},
  pages = {76-81},
  month = dec,
  year = {2013}
}

V. Milosevic, B. Jokanovic, and R. Bojanic, “Effective Electromagnetic Parameters of Metamaterial Transmission Line Loaded With Asymmetric Unit Cells,” IEEE Transactions on Microwave Theory and Techniques, vol. 61, no. 8, pp. 2761–2772, Aug. 2013.
10.1109/TMTT.2013.2268056

BibTeX Abstract

In this paper, we propose the generalized extraction procedure for retrieval of the effective constitutive parameters for a metamaterial transmission line loaded with asymmetric unit cells. The asymmetric unit cell is replaced with a transmission line immersed in equivalent bianisotropic medium described by effective parameters ε, μ, and Zc, and bianisotropic parameters u and η. The proposed retrieval procedure is applied to novel dual-band unit cells and compared with the standard Nicolson-Ross-Weir (NRW) method that is originally developed for the symmetric unit cell and then extended to the asymmetric one using the averaged value of reflection coefficients. It has been shown that, in case of pronounced asymmetry, the NRW method gives only the exact value of refraction, but effective permittivity and permeability are considerably different from the exact values since they are calculated by means of the approximate value of characteristic impedance.
```
@article{6547176,
  author = {Milosevic, V. and Jokanovic, B. and Bojanic, R.},
  journal = {IEEE Transactions on Microwave Theory and Techniques},
  title = {Effective Electromagnetic Parameters of Metamaterial Transmission Line Loaded With Asymmetric Unit Cells},
  year = {2013},
  volume = {61},
  number = {8},
  pages = {2761-2772},
  keywords = {electromagnetic metamaterials;high-frequency transmission lines;NRW method;Nicolson-Ross-Weir method;asymmetric unit cells;bianisotropic parameters;dual-band unit cells;electromagnetic parameters;equivalent bianisotropic medium;generalized extraction procedure;metamaterial transmission line;permeability;permittivity;reflection coefficients;Asymmetric unit cell;bianisotropic medium;effective material parameters;metamaterial transmission line;split-ring resonator (SRR)},
  doi = {10.1109/TMTT.2013.2268056},
  issn = {0018-9480},
  month = aug
}
```

M. Mitrovic, B. Jokanovic, and N. Vojnovic, “Wideband Tuning of the Tunneling Frequency in a Narrowed Epsilon-Near-Zero Channel,” IEEE Antennas and Wireless Propagation Letters, vol. 12, pp. 631–634, 2013.

10.1109/LAWP.2013.2261046
BibTeX	Abstract

We propose a design of foam epsilon-near-zero (ENZ) waveguide with E- and H-plane step discontinuities at the same waveguide cross section. This enables using channel dielectric permittivity greater than the permittivity in input waveguides, which is required for foam ENZ waveguide realization. A method for wideband tuning of tunneling frequency by changing the length of two longitudinal slots was also proposed and experimentally verified. Simulated tuning range is 1.06 GHz, which is in a good agreement with experimentally achieved 0.99 GHz. This tuning range is accompanied by amplitude decrease of 1.6 dB.

@article{6511993,
  author = {Mitrovic, M. and Jokanovic, B. and Vojnovic, N.},
  journal = {IEEE Antennas and Wireless Propagation Letters},
  title = {Wideband Tuning of the Tunneling Frequency in a Narrowed Epsilon-Near-Zero Channel},
  year = {2013},
  volume = {12},
  pages = {631-634},
  keywords = {permittivity;rectangular waveguides;E-plane step discontinuities;ENZ waveguide;H-plane step discontinuities;channel dielectric permittivity;foam epsilon-near-zero waveguide;frequency 0.99 GHz;frequency 1.06 GHz;longitudinal slot length;loss 1.6 dB;narrowed epsilon-near-zero channel;rectangular waveguide;tunneling frequency;waveguide cross section;wideband tuning; ${rm E}$- and ${rm H}$-plane step discontinuity;epsilong-near-zero (ENZ) metamaterial;frequency tuning;rectangular waveguide},
  doi = {10.1109/LAWP.2013.2261046},
  issn = {1536-1225},
  month = {}
}

N. Vojnovic, M. Mitrovic, and B. Jokanovic, “Modeling of Tunneling Effects in Epsilon-Near-Zero Waveguide,” Microwave Review, vol. 18, no. 2, pp. 21–27, Dec. 2012.


BibTeX

@article{mr04,
  author = {Vojnovic, N. and Mitrovic, M. and Jokanovic, B.},
  title = {Modeling of Tunneling Effects in Epsilon-Near-Zero Waveguide},
  journal = {Microwave Review},
  volume = {18},
  number = {2},
  pages = {21-27},
  month = dec,
  year = {2012}
}

R. Bojanic, B. Jokanovic, and V. Milosevic, “Reconfigurable Delay Lines with Split-Ring Resonators,” Microwave Review, vol. 17, no. 2, pp. 7–12, Dec. 2011.


BibTeX

@article{mr05,
  author = {Bojanic, R. and Jokanovic, B. and Milosevic, V.},
  title = {Reconfigurable Delay Lines with Split-Ring Resonators},
  journal = {Microwave Review},
  volume = {17},
  number = {2},
  pages = {7-12},
  month = dec,
  year = {2011}
}

R. H. Geschke, B. Jokanovic, and P. Meyer, “Filter Parameter Extraction for Triple-Band Composite Split-Ring Resonators and Filters,” IEEE Transactions on Microwave Theory and Techniques, vol. 59, no. 6, pp. 1500–1508, Jun. 2011.
10.1109/TMTT.2011.2123109

BibTeX Abstract

A configuration of composite resonators consisting of three split-ring resonators is proposed to obtain a triple-band response with two transmission zeros between the passbands. Two new topologies are presented to design triple-band filters with controllable responses. A systematic filter design approach is presented based on a filter coupling model. The model is established to enable triple-band filter design with controlled passbands. Two methods are proposed and compared for the extraction of filter parameters. Coupling between nonadjacent elements is considered in the model and shown to have a significant effect. By changing the orientation of the coupled composite resonators, it is possible to introduce additional transmission zeros. Two sixth-order filter examples illustrate the use of the coupling model with the filter design approach to design filters with specified responses. The limitations of this filter topology are discussed.
```
@article{5740381,
  author = {Geschke, R. H. and Jokanovic, B. and Meyer, P.},
  journal = {IEEE Transactions on Microwave Theory and Techniques},
  title = {Filter Parameter Extraction for Triple-Band Composite Split-Ring Resonators and Filters},
  year = {2011},
  volume = {59},
  number = {6},
  pages = {1500-1508},
  keywords = {filters;resonators;controlled passbands;coupled composite resonators;filter coupling model;filter design;filter parameter extraction;sixth-order filter;three split-ring resonators;transmission zeros;triple-band composite split-ring resonators;triple-band filters;triple-band response;Couplings;Filtering theory;Integrated circuit modeling;Parameter extraction;Passband;Resonant frequency;Topology;Composite split-ring resonators (SRRs);coupling models;de-tuning technique;filter parameter extraction;multiband;transmission zeros;tri-band;triple-band filters},
  doi = {10.1109/TMTT.2011.2123109},
  issn = {0018-9480},
  month = jun
}
```

M. Mitrovic and B. Jokanovic, “Energy Tunneling Through Narrow Waveguide Channel and Design of Small Antenna,” Serb. J. Electr. Eng., vol. 8, no. 1, pp. 63–71, Feb. 2011.

10.2298/SJEE1101063M
BibTeX

@article{ost02,
  author = {Mitrovic, M. and Jokanovic, B.},
  title = {Energy Tunneling Through Narrow Waveguide Channel and Design of Small Antenna},
  journal = {Serb. J. Electr. Eng.},
  volume = {8},
  number = {1},
  pages = {63-71},
  month = feb,
  year = {2011},
  doi = {10.2298/SJEE1101063M}
}

M. Mitrovic and B. Jokanovic, “Field Tunnelling and Losses in Narrow Waveguide Channel,” Microwave Review, vol. 16, no. 2, pp. 8–13, Dec. 2010.


BibTeX

@article{mr16,
  author = {Mitrovic, M. and Jokanovic, B.},
  title = {Field Tunnelling and Losses in Narrow Waveguide Channel},
  journal = {Microwave Review},
  volume = {16},
  number = {2},
  pages = {8-13},
  month = dec,
  year = {2010}
}

B. Jokanovic, R. H. Geschke, T. S. Beukman, and V. Milosevic, “Metamaterials: Characteristics, design and microwave applications,” SAIEE Africa Research Journal, p. 82, 2010.


BibTeX

@article{jokanovic2010metamaterials,
  title = {Metamaterials: Characteristics, design and microwave applications},
  author = {Jokanovic, Branka and Geschke, Riana H and Beukman, Theunis S and Milosevic, Vojislav},
  journal = {SAIEE Africa Research Journal},
  pages = {82},
  year = {2010}
}

O. Boric-Lubecke, V. M. Lubecke, I. Mostafanezhad, B. K. Park, W. Massagram, and B. Jokanovic, “Doppler Radar Architectures and Signal Processing for Heart Rate Extraction,” Microwave Review, vol. 15, no. 2, pp. 12–17, Dec. 2009.


BibTeX

@article{mr15,
  author = {Boric-Lubecke, O. and Lubecke, V. M. and Mostafanezhad, I. and Park, B.K and Massagram, W. and Jokanovic, B.},
  title = {Doppler Radar Architectures and Signal Processing for Heart Rate Extraction},
  journal = {Microwave Review},
  volume = {15},
  number = {2},
  pages = {12-17},
  month = dec,
  year = {2009}
}

B. Jokanovic and D. S. Vujic, “Potential of WiMAX system deployment in Serbia Montenegro [MicroBusiness],” IEEE Microwave Magazine, vol. 10, no. 2, pp. 28, 30–30, 32, Apr. 2009.
10.1109/MMM.2009.932217

BibTeX Abstract

Institutional reforms and liberalization of the telecommunications sector in Serbia have been accomplished during the last three years in compliance with modern, internationally accepted standards. Intensive activities aimed towards technological modernization of Serbian telecommunications are under way, including WiMAX systems which are an attractive solution for realizing new broadband access networks and a way to limit monopoly of a single existing fixed line operator (incumbent operator Telecom Serbia, TS). In this article, the current state of WiMAX implementation in Serbia and experience gained from WiMAX implementation in Montenegro are presented.
```
@article{4906365,
  author = {Jokanovic, B. and Vujic, D. S.},
  journal = {IEEE Microwave Magazine},
  title = {Potential of WiMAX system deployment in Serbia Montenegro [MicroBusiness]},
  year = {2009},
  volume = {10},
  number = {2},
  pages = {28, 30-30, 32},
  keywords = {WiMax;broadband networks;Montenegro;Serbia;WiMAX implementation;WiMAX system deployment;broadband services;Base stations;Bit rate;Ethernet networks;Frequency;IP networks;Internet telephony;Licenses;Space stations;Web and internet services;WiMAX},
  doi = {10.1109/MMM.2009.932217},
  issn = {1527-3342},
  month = apr
}
```
G. Isic et al., “Modelling the variable angle reflection and transmission from metamaterial slabs,” Acta Physica Polonica A, vol. 116, no. 4, pp. 631–634, 2009.
10.12693/APhysPolA.116.631

BibTeX Abstract

We consider metamaterial slabs composed of perfectly conducting split ring resonators. Assuming bianisotropic constitutive relations, we describe an S-parameter retrieval method that allows us to obtain the full material parameter tensors from numerically calculated S parameters. The retrieval has been done for various angles of incidence, ranging from 0° to 75°. It has been found that the parameters depend on the angle of incidence, but that this dependence is relatively small.
```
@article{isic2009modelling,
  title = {Modelling the variable angle reflection and transmission from metamaterial slabs},
  author = {Isic, G and Vasic, B and Miric, M and Jokanovic, B and Bergmair, I and Gajic, R and Hingerl, K},
  journal = {Acta Physica Polonica A},
  volume = {116},
  number = {4},
  pages = {631--634},
  year = {2009},
  publisher = {Institute of Physics, Polish Academy of Science},
  doi = {10.12693/APhysPolA.116.631}
}
```

V. Radonic, V. Crnojevic-Bengin, and B. Jokanovic, “Analysis of Metamaterial Unit Cells Based on Grounded Patch,” Microwave Review, vol. 14, no. 2, pp. 12–15, Dec. 2008.


BibTeX

@article{mr14,
  author = {Radonic, V. and Crnojevic-Bengin, V. and Jokanovic, B.},
  title = {Analysis of Metamaterial Unit Cells Based on Grounded Patch},
  journal = {Microwave Review},
  volume = {14},
  number = {2},
  pages = {12-15},
  month = dec,
  year = {2008}
}

V. Crnojevic-Bengin, V. Radonic, and B. Jokanovic, “Fractal Geometries of Complementary Split-Ring Resonators,” IEEE Transactions on Microwave Theory and Techniques, vol. 56, no. 10, pp. 2312–2321, Oct. 2008.
10.1109/TMTT.2008.2003522

BibTeX Abstract

Complementary split-ring resonators (CSRRs) are typically used as negative-permittivity particles in microstrip left-handed structures. In this paper, novel CSRRs that use a square Sierpinski fractal curve are proposed and studied in detail. It is shown that the application of fractal geometries results in significant miniaturization of the metamaterial unit cell in comparison with conventional and equivalent meander structures. Multiple fractal CSRRs are also analyzed. The influence of different geometrical parameters and the order of the fractal curve on the performances are investigated, as well as the efficiency of excitation of the particles. When used in the design of left-handed transmission lines, fractal complementary split rings improve frequency selectivity in the upper transition band when compared to other nonfractal topologies.
```
@article{4625017,
  author = {Crnojevic-Bengin, V. and Radonic, V. and Jokanovic, B.},
  journal = {IEEE Transactions on Microwave Theory and Techniques},
  title = {Fractal Geometries of Complementary Split-Ring Resonators},
  year = {2008},
  volume = {56},
  number = {10},
  pages = {2312-2321},
  keywords = {fractals;metamaterials;microstrip resonators;complementary split-ring resonators;fractal complementary split rings;fractal geometries;geometrical parameters;left-handed transmission lines;metamaterial unit cell;microstrip left-handed structures;miniaturization;negative-permittivity particles;nonfractal topologies;square Sierpinski It fractal curve;Fractals;metamaterials;microwave filters;split-ring resonators},
  doi = {10.1109/TMTT.2008.2003522},
  issn = {0018-9480},
  month = oct
}
```
B. Jokanovic, V. Crnojevic-Bengin, and O. Boric-Lubecke, “Miniature high selectivity filters using grounded spiral resonators,” Electronics Letters, vol. 44, no. 17, pp. 1019–1020, Aug. 2008.
10.1049/el:20081543

BibTeX Abstract

A novel miniature high selectivity filter designed using a metamaterial resonator based on four grounded spirals (ForeS) is presented. This enables extreme size reduction together with high out-of-band rejection and low insertion loss. A fabricated third-order filter has overall dimensions of lambdag/4 by lambdag/15, a 3 dB bandwidth of 3.7% at 1.63 GHz, insertion loss of -3 dB, attenuation greater than 75 dB in the lower stopband and greater than 40 dB up to 2.6 times the centre frequency.
```
@article{4606601,
  author = {Jokanovic, B. and Crnojevic-Bengin, V. and Boric-Lubecke, O.},
  journal = {Electronics Letters},
  title = {Miniature high selectivity filters using grounded spiral resonators},
  year = {2008},
  volume = {44},
  number = {17},
  pages = {1019-1020},
  keywords = {UHF filters;metamaterials;resonator filters;frequency 1.63 GHz;grounded spiral resonators;insertion loss;metamaterial resonator;miniature high selectivity filters;size reduction},
  doi = {10.1049/el:20081543},
  issn = {0013-5194},
  month = aug
}
```
D. Markovic, B. Jokanovic, J. Kiriazi, and V. Lubecke, “Implementation of rigorous EM simulations for design and production of narrow band waveguide diplexer,” Microwave and Optical Technology Letters, vol. 50, no. 4, pp. 1032–1036, 2008.
10.1002/mop.23277

BibTeX Abstract

In this article the advanced modeling and simulation of narrow band waveguide diplexer for radio-relay links at 13 GHz is presented. Three different electromagnetic simulation packages were used for design of diplexer with 0.76% of fractional bandwidth and 2% of channel spacing. Simulation tools are compared concerning their accuracy in the prediction of central frequency, bandwidth, insertion and return losses and out of band attenuation. © 2008 Wiley Periodicals, Inc. Microwave Opt Technol Lett 50: 1032–1036, 2008; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.23277
```
@article{MOP23277,
  author = {Markovic, Dusan and Jokanovic, Branka and Kiriazi, John and Lubecke, Victor},
  title = {Implementation of rigorous EM simulations for design and production of narrow band waveguide diplexer},
  journal = {Microwave and Optical Technology Letters},
  volume = {50},
  number = {4},
  publisher = {Wiley Subscription Services, Inc., A Wiley Company},
  issn = {1098-2760},
  url = {http://dx.doi.org/10.1002/mop.23277},
  doi = {10.1002/mop.23277},
  pages = {1032--1036},
  keywords = {waveguide diplexer, E-plane T-junction, E-plane metal insert filters},
  year = {2008}
}
```

V. Radonic, B. Jokanovic, and V. Crnojevic-Bengin, “Different Approaches to the Design of Metamaterials,” Microwave Review, vol. 13, no. 2, pp. 2–7, Dec. 2007.


BibTeX

@article{mr13,
  author = {Radonic, V. and Jokanovic, B. and Crnojevic-Bengin, V.},
  title = {Different Approaches to the Design of Metamaterials},
  journal = {Microwave Review},
  volume = {13},
  number = {2},
  pages = {2-7},
  month = dec,
  year = {2007}
}

V. Crnojevic-Bengin, V. Radonic, and B. Jokanovic, “Left-handed microstrip lines with multiple complementary split-ring and spiral resonators,” Microwave and Optical Technology Letters, vol. 49, no. 6, pp. 1391–1395, 2007.
10.1002/mop.22427

BibTeX Abstract

Negative-permeability sub-wavelength particles, namely split-ring resonators and spiral resonators, are compared and their performances analyzed for a different number of concentric rings and spiral turns, respectively. Left-handed lines are designed, fabricated, and measured that use multiple complementary split-ring and spiral resonators. More compact structures are obtained, with improved characteristics. © 2007 Wiley Periodicals, Inc. Microwave Opt Technol Lett 49: 1391–1395, 2007; Published online in Wiley InterScience (www.interscience.wiley.com). DOI.10.1002/mop.22427
```
@article{MOP22427,
  author = {Crnojevic-Bengin, V. and Radonic, V. and Jokanovic, B.},
  title = {Left-handed microstrip lines with multiple complementary split-ring and spiral resonators},
  journal = {Microwave and Optical Technology Letters},
  volume = {49},
  number = {6},
  publisher = {Wiley Subscription Services, Inc., A Wiley Company},
  issn = {1098-2760},
  url = {http://dx.doi.org/10.1002/mop.22427},
  doi = {10.1002/mop.22427},
  pages = {1391--1395},
  keywords = {left-handed metamaterials, split-ring resonators, spiral resonators, bandpass filters},
  year = {2007}
}
```
B. Jokanovic and V. Crnojevic-Bengin, “Novel left-handed transmission lines based on grounded spirals,” Microwave and Optical Technology Letters, vol. 49, no. 10, pp. 2561–2567, 2007.
10.1002/mop.22739

BibTeX Abstract

Novel super-compact (λg/13 by λg/13) left-handed (LH) unit cell ForeS, based on grounded spirals, is analyzed in detail. ForeS exhibits low insertion losses and a large design flexibility: small changes of its inner dimensions, result in resonant frequency tuning range approximately equal to 67%. In the same time, the second harmonic is positioned at more then four times the first resonant frequency. By placing the diodes at the relevant positions, ForeS can be made electronically reconfigurable: 27% resonant frequency tuning range can be achieved, as well as different in- and out-of-band performances. Two LH transmission lines are designed using ForeS that offer a trade-off between LH bandwidth and pass band ripple. © 2007 Wiley Periodicals, Inc. Microwave Opt Technol Lett 49: 2561–2567, 2007; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.22739
```
@article{MOP22739,
  author = {Jokanovic, B. and Crnojevic-Bengin, V.},
  title = {Novel left-handed transmission lines based on grounded spirals},
  journal = {Microwave and Optical Technology Letters},
  volume = {49},
  number = {10},
  publisher = {Wiley Subscription Services, Inc., A Wiley Company},
  issn = {1098-2760},
  url = {http://dx.doi.org/10.1002/mop.22739},
  doi = {10.1002/mop.22739},
  pages = {2561--2567},
  keywords = {left-handed metamaterials, transmission line approach, bandpass filters},
  year = {2007}
}
```

B. Jokanovic and D. Markovic, “Wideband microstrip-to-waveguide transition using double-y balun,” Electronics Letters, vol. 42, no. 18, pp. 1043–1044, Aug. 2006.

10.1049/el:20061769
BibTeX	Abstract

Not Available

@article{1688172,
  author = {Jokanovic, B. and Markovic, D.},
  journal = {Electronics Letters},
  title = {Wideband microstrip-to-waveguide transition using double-y balun},
  year = {2006},
  volume = {42},
  number = {18},
  pages = {1043-1044},
  doi = {10.1049/el:20061769},
  issn = {0013-5194},
  month = aug
}

M. Slovic, B. Jokanovic, and B. Kolundzija, “High Effieciency Patch Antenna for 24GHz Anticollision Radar,” Microwave Review, vol. 12, no. 1, pp. 50–53, Jun. 2006.


BibTeX

@article{mr06,
  author = {Slovic, M. and Jokanovic, B. and Kolundzija, B.},
  title = {High Effieciency Patch Antenna for 24GHz Anticollision Radar},
  journal = {Microwave Review},
  volume = {12},
  number = {1},
  pages = {50-53},
  month = jun,
  year = {2006}
}

A. Nesic, B. Jokanovic, and N. Popovic, “A Miniature Surveillance 8-40GHz Radar Detector – the Milestone Project of the Institute for Applied Physics in 1978,” Microwave Review, vol. 10, no. 2, pp. 53–56, Nov. 2004.


BibTeX

@article{mr07,
  author = {Nesic, A. and Jokanovic, B. and Popovic, N.},
  title = {A Miniature Surveillance 8-40GHz Radar Detector – the Milestone Project of the Institute for Applied Physics in 1978},
  journal = {Microwave Review},
  volume = {10},
  number = {2},
  pages = {53-56},
  month = nov,
  year = {2004}
}

M. Rakic, B. Jokanovic, and D. Budimir, “Influence of Manufacturing Tolerances on Central Frequency of a Narrow Band E-Plane Waveguide Filter,” Microwave Review, vol. 10, no. 1, pp. 14–19, Jun. 2004.


BibTeX

@article{mr08,
  author = {Rakic, M. and Jokanovic, B. and Budimir, Dj.},
  title = {Influence of Manufacturing Tolerances on Central Frequency of a Narrow Band E-Plane Waveguide Filter},
  journal = {Microwave Review},
  volume = {10},
  number = {1},
  pages = {14-19},
  month = jun,
  year = {2004}
}

B. Jokanovic and A. Marincic, “Microwave Circuits Based on Six-Port Junction,” Microwave Review, vol. 9, no. 1, pp. 45–49, Sep. 2003.


BibTeX

@article{mr09,
  author = {Jokanovic, B. and Marincic, A.},
  title = {Microwave Circuits Based on Six-Port Junction},
  journal = {Microwave Review},
  volume = {9},
  number = {1},
  pages = {45-49},
  month = sep,
  year = {2003}
}

B. Reljic and B. Jokanovic, “A New Class of Antenna Arrays with Passive Elements,” Microwave Review, vol. 8, no. 1, pp. 8–14, Dec. 2002.


BibTeX

@article{mr11,
  author = {Reljic, B. and Jokanovic, B.},
  title = {A New Class of Antenna Arrays with Passive Elements},
  journal = {Microwave Review},
  volume = {8},
  number = {1},
  pages = {8-14},
  month = dec,
  year = {2002}
}

B. Jokanovic, V. Trifunovic, and B. Reljic, “Balance measurements in double-Y baluns,” IEE Proceedings - Microwaves, Antennas and Propagation, vol. 149, no. 56, pp. 257–260, Oct. 2002.
10.1049/ip-map:20020575

BibTeX Abstract

Amplitude and phase balances in a double-Y balun, which transforms a coplanar waveguide with finite ground plane (CPWFGP) into a coplanar line (CPS), are investigated theoretically and experimentally. Measured results are presented for two baluns with different lengths of open- and short-circuited stubs. The balun with longer stubs demonstrated better amplitude balance. In the frequency range 3 to 14 GHz the measured amplitude balance is better than 1 dB and the phase balance is better than 8°. At the frequencies where resonances of the parasitic even mode appear, the balun has poor characteristics.
```
@article{1189593,
  author = {Jokanovic, B. and Trifunovic, V. and Reljic, B.},
  journal = {IEE Proceedings - Microwaves, Antennas and Propagation},
  title = {Balance measurements in double-Y baluns},
  year = {2002},
  volume = {149},
  number = {56},
  pages = {257-260},
  keywords = {baluns;coplanar transmission lines;coplanar waveguides;resonance;3 to 14 GHz;CPW;amplitude balance;balance measurements;balun length;coplanar line;coplanar waveguide;double-Y baluns;finite ground plane;frequency range;open-circuited stub;parasitic even mode resonances;phase balance;short-circuited stub;stub electrical length},
  doi = {10.1049/ip-map:20020575},
  issn = {1350-2417},
  month = oct
}
```

B. Jokanovic, S. Stojanovic, and M. Peric, “Direct QPSK Modulator for Radio Links at 23 GHz,” Microwave Review, vol. 7, no. 3, pp. 43–46, Dec. 2001.


BibTeX

@article{mr12,
  author = {Jokanovic, B. and Stojanovic, S. and Peric, M.},
  title = {Direct QPSK Modulator for Radio Links at 23 GHz},
  journal = {Microwave Review},
  volume = {7},
  number = {3},
  pages = {43-46},
  month = dec,
  year = {2001}
}

B. Jokanovic, A. Marincic, and B. Kolundzija, “Analysis of the parasitic effects in double-Y baluns,” IEE Proceedings - Microwaves, Antennas and Propagation, vol. 148, no. 4, pp. 239–245, Aug. 2001.
10.1049/ip-map:20010496

BibTeX Abstract

Effects limiting the bandwidth of a double-Y balun that transforms a finite-ground-plane coplanar waveguide (CPWFGP) to a coplanar strip line (CPS) are investigated both theoretically and experimentally. Analysis shows two kinds of parasitic effects: parasitic effects that depend on the electrical length of the input transmission lines for the even and balanced modes, and those that depend on the length of the open- and short-circuited stubs, which are observed in both the regular odd mode and balanced mode. The developed theory allows the parasitic resonances in CPWFGP-CPS baluns to be predicted and shifted out of the operating frequency bandwidth by changing the corresponding physical dimensions of the balun. Theoretical results have been experimentally verified
```
@article{955365,
  author = {Jokanovic, B. and Marincic, A. and Kolundzija, B.},
  journal = {IEE Proceedings - Microwaves, Antennas and Propagation},
  title = {Analysis of the parasitic effects in double-Y baluns},
  year = {2001},
  volume = {148},
  number = {4},
  pages = {239-245},
  keywords = {baluns;coplanar transmission lines;coplanar waveguides;resonance;strip lines;balanced mode;balun dimensions;bandwidth limitation;coplanar strip line;double-Y baluns;electrical length;even mode;finite-ground-plane coplanar waveguide;input transmission lines;odd mode;open-circuited stubs;operating frequency bandwidth;parasitic effects;parasitic resonances;short-circuited stubs},
  doi = {10.1049/ip-map:20010496},
  issn = {1350-2417},
  month = aug
}
```

B. Jokanovic, A. Marincic, and B. Kolundzija, “Theoretical and Experimental Investigation of Parasitic Effects in Double-Y Baluns,” Facta Universitatis (Nis), Ser. Elec. Energ., vol. 13, no. 2, pp. 219–230, Aug. 2000.


BibTeX

@article{ost03,
  author = {Jokanovic, B. and Marincic, A. and Kolundzija, B.},
  title = {Theoretical and Experimental Investigation of Parasitic Effects in Double-Y Baluns},
  journal = {Facta Universitatis (Nis), Ser. Elec. Energ.},
  volume = {13},
  number = {2},
  pages = {219-230},
  month = aug,
  year = {2000}
}

B. Jokanovic and V. Trifunovic, “Double-Y Baluns for MMICs and Wireless Applications,” Microwave Journal, pp. 70–92, Jan. 1998.


BibTeX

@article{ost04,
  author = {Jokanovic, B. and Trifunovic, V.},
  title = {Double-Y Baluns for MMICs and Wireless Applications},
  journal = {Microwave Journal},
  pages = {70-92},
  month = jan,
  year = {1998}
}

V. Trifunovic and B. Jokanovic, “Star mixer with high port-to-port isolation,” Electronics Letters, vol. 32, no. 24, pp. 2251–2252, Nov. 1996.
10.1049/el:19961465

BibTeX Abstract

The authors describe the realisation of a hybrid star mixer with enhanced port-to-port isolation, which uses novel double-Y baluns. The mixer has a minimum conversion loss of 5.5 dB and has >1.5 GHz IF bandwidth and 6.5 GHz LO/RF bandwidth for a conversion loss of <9 dB. LO/RF isolation is better than 30 dB and LO/IF isolation is better than 25 dB in the 5-10 GHz range
```
@article{556797,
  author = {Trifunovic, V. and Jokanovic, B.},
  journal = {Electronics Letters},
  title = {Star mixer with high port-to-port isolation},
  year = {1996},
  volume = {32},
  number = {24},
  pages = {2251-2252},
  keywords = {baluns;losses;microwave circuits;microwave mixers;5 to 10 GHz;5.5 dB;6.5 GHz;IF bandwidth;LO/RF bandwidth;conversion loss;double-Y baluns;port-to-port isolation;star mixer},
  doi = {10.1049/el:19961465},
  issn = {0013-5194},
  month = nov
}
```
V. Trifunovic and B. Jokanovic, “Review of printed Marchand and double Y baluns: characteristics and application,” IEEE Transactions on Microwave Theory and Techniques, vol. 42, no. 8, pp. 1454–1462, Aug. 1994.
10.1109/22.297806

BibTeX Abstract

A review of printed baluns is presented. This is divided into two main groups; Marchand baluns (band pass networks) and double Y baluns (all pass networks). For each of these groups of baluns, three different realizations are given: microstrip-slot line, CPW-slot line and CPWFGP-CPS and their theoretical and experimental characteristics are compared. Simple expressions for the design of Marchand baluns with Chebyshev response, which replace the complicated synthesis proposed by Cloete are derived. Superior broadbandwidth features of double Y baluns are demonstrated in the design of two uniplanar double balanced mixers. Both the double Y mixer and the CPW FGP-CPS mixer have a frequency bandwidth 1:6, whilst maintaining other performance similar to that achieved with classical double balanced mixers
```
@article{297806,
  author = {Trifunovic, V. and Jokanovic, B.},
  journal = {IEEE Transactions on Microwave Theory and Techniques},
  title = {Review of printed Marchand and double Y baluns: characteristics and application},
  year = {1994},
  volume = {42},
  number = {8},
  pages = {1454-1462},
  keywords = {distributed parameter networks;equivalent circuits;impedance matching;microstrip components;mixers (circuits);reviews;waveguide components;CPW-slot line;CPWFGP-CPS;Chebyshev response;Marchand baluns;all pass networks;band pass networks;broadbandwidth features;double Y baluns;microstrip-slot line;printed baluns;review;uniplanar double balanced mixers;Bandwidth;Chebyshev approximation;Coplanar waveguides;Distributed parameter circuits;Equivalent circuits;Frequency conversion;Impedance matching;Microstrip;Network synthesis;Transmission line theory},
  doi = {10.1109/22.297806},
  issn = {0018-9480},
  month = aug
}
```

V. Trifunovic and B. Jokanovic, “A New Uniplanar Balun,” Facta Universitatis (Nis), Ser. Elec. Energ., vol. 7, pp. 73–82, 1994.


BibTeX

@article{ost05,
  author = {Trifunovic, V. and Jokanovic, B.},
  title = {A New Uniplanar Balun},
  journal = {Facta Universitatis (Nis), Ser. Elec. Energ.},
  volume = {7},
  pages = {73-82},
  year = {1994}
}

V. Trifunovic and B. Jokanovic, “Four decade bandwidth uniplanar balun,” Electronics Letters, vol. 28, no. 6, pp. 534–535, Mar. 1992.
10.1049/el:19920337

BibTeX Abstract

A new realisation of a double junction balun with four decade bandwidth is presented. The balun is designed using coplanar line (CPS) and coplanar waveguide with finite ground planes (CPWFGP). The simple theoretical model which describes the double junction balun as the all-pass network has been introduced. The measured VSWR is less than 1.3 and insertion loss less than 0.5 dB in the frequency range 300 kHz-4.0 GHz.
```
@article{126483,
  author = {Trifunovic, V. and Jokanovic, B.},
  journal = {Electronics Letters},
  title = {Four decade bandwidth uniplanar balun},
  year = {1992},
  volume = {28},
  number = {6},
  pages = {534-535},
  keywords = {impedance matching;strip line components;waveguide couplers;0 to 18 GHz;0.5 dB;300 kHz to 4 GHz;VSWR;all-pass network;coplanar line;coplanar waveguide;double junction balun;finite ground planes;four decade bandwidth;insertion loss;microwave balun;uniplanar balun},
  doi = {10.1049/el:19920337},
  issn = {0013-5194},
  month = mar
}
```

I. Radnovic and B. Jokanovic, “21-24GHz IRM for Link Applications,” Microwave Engineering Europe, pp. 35–40, Feb. 1992.


BibTeX

@article{ost06,
  author = {Radnovic, I. and Jokanovic, B.},
  title = {21-24GHz IRM for Link Applications},
  journal = {Microwave Engineering Europe},
  pages = {35-40},
  month = feb,
  year = {1992}
}

V. Trifunovic and B. Jokanovic, “New uniplanar balun,” Electronics Letters, vol. 27, no. 10, pp. 813–815, May 1991.
10.1049/el:19910511

BibTeX Abstract

A new uniplanar CPW-slot double junction balun has been proposed. Being realised as a uniplanar equivalent of the microstrip-slot double junction transition, this balun is well suited for MMICs, and has better characteristics that other uniplanar baluns published up to now. The measured VSWR is less than 1.6 and insertion loss is about 0.7 dB for bandwidth ratio 1:6.
```
@article{74944,
  author = {Trifunovic, V. and Jokanovic, B.},
  journal = {Electronics Letters},
  title = {New uniplanar balun},
  year = {1991},
  volume = {27},
  number = {10},
  pages = {813-815},
  keywords = {MMIC;strip line components;waveguide couplers;0.7 dB;MMICs;VSWR;bandwidth ratio;characteristics;insertion loss;microwave baluns;uniplanar CPW-slot double junction balun;uniplanar balun},
  doi = {10.1049/el:19910511},
  issn = {0013-5194},
  month = may
}
```
B. Jokanovic and V. Trifunovic, “Ku Band SSB Mixer,” Microwave Journal, pp. 153–158, Jun. 1989.
BibTeX Abstract

The paper presents the design and construction of a single sideband (SSB) mixer. Conversion loss, SWR, LO/RF isolation and image suppression have been measured by a computer-automated technique. A number of mixers for Ku band have been built using microstrip technology. The operating frequency ranges were from 15 to 16 GHz and from 14 to 14.5 GHz, while the IF in both cases was 70 MHz. The RF insertion loss of the SSB mixers was less than 6 dB, while image suppression was greater than 20 dB (for the 15 to 16 GHz mixer) and greater than 35 dB (for 14 to 14.5 GHz mixer). Also, RF/LO isolation of greater than 30 dB has been achieved.
```
@article{ost07,
  author = {Jokanovic, B. and Trifunovic, V.},
  title = {Ku Band SSB Mixer},
  journal = {Microwave Journal},
  pages = {153-158},
  month = jun,
  year = {1989}
}
```

Conferences

M. Milijic and B. Jokanovic, “Radiation Bandwidth of Series-Fed Slot Arrays for 5G and IoT Applications,” in 2018 26th Telecommunications Forum (TELFOR), 2018.

10.1109/TELFOR.2018.8612088
BibTeX	Abstract

Series-fed slot antenna arrays have been investigated for 5G and Internet of Things (IoT) applications in frequency range 24.25-27.5 GHz. In order to achieve the best possible radiation bandwidth, the influence of different number of slot antennas in the array, fed with coplanar waveguide (CPW), was examined. The simulated results such as gain and bandwidth show that the proposed antenna arrays would be suitable for future high capacity, broadband 5G technologies.

@inproceedings{8612088,
  author = {{Milijic}, M. and {Jokanovic}, B.},
  booktitle = {2018 26th Telecommunications Forum (TELFOR)},
  title = {Radiation Bandwidth of Series-Fed Slot Arrays for 5G and IoT Applications},
  year = {2018},
  volume = {},
  number = {},
  keywords = {antenna feeds;antenna radiation patterns;coplanar waveguides;Internet of Things;microwave antenna arrays;slot antenna arrays;CPW;coplanar waveguide;5G applications;radiation bandwidth;IoT applications;Internet of Things applications;slot antennas;series-fed slot antenna arrays;frequency 24.25 GHz to 27.5 GHz;Antenna arrays;Slot antennas;Antenna radiation patterns;5G mobile communication;Coplanar waveguides;Broadband antennas;Bandwidth;Series-fed antenna array;rectangular slot antenna;CPW feeding line;antenna bandwidth},
  doi = {10.1109/TELFOR.2018.8612088},
  issn = {},
  month = nov
}

I. Radnovic, B. Jokanovic, and A. Boryssenko, “Circularly Polarized Patch Antenna Array at 24 GHz for Radar Applications,” in 2018 26th Telecommunications Forum (TELFOR), 2018.

10.1109/TELFOR.2018.8611820
BibTeX	Abstract

The paper presents the design of the novel circularly polarized antenna array operating at IMS band 24.05-24.25 GHz. The antenna array consists of 24 identical truncated patches which are serially fed through the microstip line. The antenna is a travelling-wave array with exponential power distribution which provides very good side lobe suppression of 32 dB in the whole operating band making it suitable for automotive radar applications. Simulated axial ratio is below 3dB in the range (24.07-24.27) GHz, the antenna gain is around 18 dBi, cross polarization is better than 15 dB and return loss is greater than 16 dB in the entire IMS band.

@inproceedings{8611820,
  author = {{Radnovic}, I. and {Jokanovic}, B. and {Boryssenko}, A.},
  booktitle = {2018 26th Telecommunications Forum (TELFOR)},
  title = {Circularly Polarized Patch Antenna Array at 24 GHz for Radar Applications},
  year = {2018},
  volume = {},
  number = {},
  keywords = {antenna feeds;electromagnetic wave polarisation;microstrip antenna arrays;microstrip lines;microwave antenna arrays;radar antennas;exponential power distribution;antenna feeds;microstip line;identical truncated patches;IMS band;travelling-wave array;circularly polarized patch antenna array;cross polarization;automotive radar applications;frequency 24.0 GHz;frequency 24.05 GHz to 24.25 GHz;gain 32.0 dB;frequency 24.07 GHz to 24.27 GHz;Patch antennas;Radar antennas;Microstrip antenna arrays;Polarization;Impedance;Antenna array;circularly polarized patch antenna;exponential power distribution;axial ratio},
  doi = {10.1109/TELFOR.2018.8611820},
  issn = {},
  month = nov
}

J. Misic, B. Jokanovic, and I. Radnovic, “Comparison of slotted and truncated circularly polarized patch antenna arrays at 24 GHz,” in 2018 5th International Conference on Electrical, Electronic and Computing Engineering (IcETRAN), 2018.
BibTeX Abstract

In this paper two designs of circularly polarized printed antenna arrays with the truncated and slotted patches are presented. Both designs are compared regarding the radiation patterns and axial ratio. It is shown that slotted patch antenna array exhibits wider operating range regarding 3 dB-axial ratio compared to the truncated one, but has a lower gain. According to the obtained results of linear antenna arrays with 6, 12 and 24 radiating elements both antenna designs can be used for the realization of antenna arrays intended for automotive radar applications.
```
@inproceedings{etr2018_1,
  author = {{Misic}, J. and {Jokanovic}, B. and {Radnovic}, I.},
  booktitle = {2018 5th International Conference on Electrical, Electronic and Computing Engineering (IcETRAN)},
  title = {Comparison of slotted and truncated circularly polarized patch antenna arrays at 24 GHz},
  year = {2018},
  volume = {},
  number = {},
  issn = {}
}
```
M. Milijic and B. Jokanovic, “Parametric Analysis of Wideband CPW-fed BowTie Slot Dipole,” in 53rd International Scientific Conference on Information, Communication and Energy Systems and Technologies (ICEST 2018), 2018.
BibTeX Abstract

An uniplanar bow-tie slot dipole fed by CPW (coplanar waveguide) is proposed in this paper. Single element is designed for application in 5G frequency range 24.25-27.5 GHz. It is described how dimension parameters of bow-tie slot dipole can be designed to tune the impedance of the antenna over a wide range. The simulated results demonstrate that this structure provides the advantage of wide impedance bandwidth besides small size, low profile, easy and cheap fabrication. This antenna structure is particularly suitable for series-fed array configurations and broadband design.
```
@inproceedings{incest2018,
  author = {{Milijic}, M. and {Jokanovic}, B.},
  booktitle = {53rd
  International Scientific Conference on Information, Communication and Energy Systems and
  Technologies (ICEST 2018)},
  title = {Parametric Analysis of Wideband CPW-fed BowTie Slot Dipole},
  year = {2018},
  volume = {},
  number = {},
  issn = {}
}
```
M. Milijic and B. Jokanovic, “K-Band CPW-Fed Rectangular Slot Dipoles for 5G Applications,” in 2018 5th International Conference on Electrical, Electronic and Computing Engineering (IcETRAN), 2018.
BibTeX Abstract

This paper presents the results of parametric analysis of the rectangular slot dipole fed by CPW line for application in 5G frequency range 24.25-27.5 GHz band. The influence of the dipole geometrical parameters on the dipole key performances like resonant and antiresonant frequencies, and antenna bandwidth is demonstrated. This research opens the door to the reconfigurability of slot dipole antennas by means of variable length of the extended CPW line, which can adjust the antiresonant frequency and impedance level at antiresonance.
```
@inproceedings{etr2018_2,
  author = {{Milijic}, M. and {Jokanovic}, B.},
  booktitle = {2018 5th International Conference on Electrical, Electronic and Computing Engineering (IcETRAN)},
  title = {K-Band CPW-Fed Rectangular Slot Dipoles for 5G Applications},
  year = {2018},
  volume = {},
  number = {},
  issn = {}
}
```
B. Jokanovic, V. Milosevic, M. Radovanovic, and N. Boskovic, “Advanced antennas for next generation wireless access,” in 2017 13th International Conference on Advanced Technologies, Systems and Services in Telecommunications (TELSIKS), 2017, pp. 87–94.
10.1109/TELSKS.2017.8246235

BibTeX Abstract

Millimeter wave multibeam antennas are a key technology for enabling beamforming and massive multiple-input multiple-output (MIMO) infrastructure for the fifth generation wireless access (5G). They have attracted a great research attention nowadays and have been intensively investigated in order to achieve previously unattainable system performances. Here we present an overview of the recent advances in multibeam antenna designs based on reflectors, lenses and beamforming networks. We have discussed their principle of operation, design and implementation as well as suitability for the future 5G massive MIMO systems.
```
@inproceedings{8246235,
  author = {{Jokanovic}, B. and {Milosevic}, V. and {Radovanovic}, M. and {Boskovic}, N.},
  booktitle = {2017 13th International Conference on Advanced Technologies, Systems and Services in Telecommunications (TELSIKS)},
  title = {Advanced antennas for next generation wireless access},
  year = {2017},
  volume = {},
  number = {},
  pages = {87-94},
  keywords = {5G mobile communication;array signal processing;millimetre wave antennas;MIMO communication;multibeam antennas;millimeter wave multibeam antennas;fifth generation wireless access;unattainable system performances;multibeam antenna designs;beamforming networks;future 5G massive MIMO systems;massive multiple-input multiple-output infrastructure;Multibeam antenna;Reflectarray;Rotman lens;Beamforming network;Butler matrix},
  doi = {10.1109/TELSKS.2017.8246235},
  issn = {},
  month = oct
}
```

V. Milosevic, B. Jokanovic, O. Boric-Lubecke, and V. Lubecke, “Key millimeter wave technologies for 5G,” in 2016 24th Telecommunications Forum (TELFOR), 2016, pp. 1–1.

10.1109/TELFOR.2016.7818831
BibTeX	Abstract

Overview of the drivers and key enabling technologies for 5G mm-wave wireless communication systems will be given. Innovative mm-wave antenna designs, such as holographic antennas and metamaterial flat lens antennas will be presented.

@inproceedings{7818831,
  author = {Milosevic, V. and Jokanovic, B. and Boric-Lubecke, O. and Lubecke, V.},
  booktitle = {2016 24th Telecommunications Forum (TELFOR)},
  title = {Key millimeter wave technologies for 5G},
  year = {2016},
  pages = {1-1},
  keywords = {Antenna Arrays;Beamforming;Beamspace Channel Modelling;Holographic Antennas;Hybrid MIMO;Lens Antennas;MM-Wave Propagation;Multiple Antenna Systems},
  doi = {10.1109/TELFOR.2016.7818831},
  month = nov
}

V. Milosevic, M. Radovanovic, B. Jokanovic, O. Boric-Lubecke, and V. M. Lubecke, “Tx leakage cancellation using antenna image impedance for CW radar applications,” in 2016 46th European Microwave Conference (EuMC), 2016, pp. 425–428.
10.1109/EuMC.2016.7824370

BibTeX Abstract

In this paper we propose the Tx leakage cancellation method based on the antenna image impedance, i.e. the passive network synthesized to replicate the antenna impedance in the band of interest. The concept is verified for the patch antenna array operating in the Ku band, where the achieved isolation is measured to be better than 35 dB in the 17-17.4 GHz range. This method can provide great benefit for single antenna CW radar applications.
```
@inproceedings{7824370,
  author = {Milosevic, V. and Radovanovic, M. and Jokanovic, B. and Boric-Lubecke, O. and Lubecke, V. M.},
  booktitle = {2016 46th European Microwave Conference (EuMC)},
  title = {Tx leakage cancellation using antenna image impedance for CW radar applications},
  year = {2016},
  pages = {425-428},
  keywords = {CW radar;microstrip antenna arrays;microwave antennas;radar antennas;CW radar applications;Tx leakage cancellation method;antenna image impedance;frequency 17 GHz to 17.4 GHz;passive network;patch antenna array;Antenna measurements;Doppler radar;Impedance;Ports (Computers);Radar antennas},
  doi = {10.1109/EuMC.2016.7824370},
  month = oct
}
```
N. Boskovic, B. Jokanovic, F. Oliveri, and D. Tarchi, “High gain printed antenna array for FMCW radar at 17 GHz,” in 2015 12th International Conference on Telecommunication in Modern Satellite, Cable and Broadcasting Services (TELSIKS), 2015, pp. 164–167.
10.1109/TELSKS.2015.7357760

BibTeX Abstract

We are presenting the design of a high gain printed antenna array consisting of 420 identical patch antennas intended for FMCW radar at Ku band. The array exhibits 3 dB-beamwidths of 2° and 10° in H and E plane, respectively, side lobe suppression better than 20 dB, gain about 30 dBi and VSWR less than 2 in the frequency range 17.1 - 17.6 GHz. Excellent antenna efficiency that is between 60 and 70 % is achieved by proper impedance matching throughout the array and by using series feeding architecture with both resonant and traveling-wave feed. Enhanced cross polarization suppression is obtained by anti-phase feeding of the upper and the lower halves of the antenna. Overall antenna dimensions are 31 λ0 × 7.5 λ0.
```
@inproceedings{7357760,
  author = {Boskovic, N. and Jokanovic, B. and Oliveri, F. and Tarchi, D.},
  booktitle = {2015 12th International Conference on Telecommunication in Modern Satellite, Cable and Broadcasting Services (TELSIKS)},
  title = {High gain printed antenna array for FMCW radar at 17 GHz},
  year = {2015},
  pages = {164-167},
  keywords = {CW radar;FM radar;impedance matching;microstrip antenna arrays;microwave antenna arrays;radar antennas;FMCW radar;Ku band;anti-phase feeding;cross polarization suppression;frequency 17 GHz;frequency 17.1 GHz to 17.6 GHz;impedance matching;patch antennas;printed antenna array;side lobe suppression;Antenna arrays;Antenna feeds;Antenna radiation patterns;Arrays;Gain;Impedance;Patch antennas;Antenna array;Feeding network;Patch antenna;Radiation pattern},
  doi = {10.1109/TELSKS.2015.7357760},
  month = oct
}
```
O. Boric-Lubecke, V. M. Lubecke, B. Jokanovic, A. Singh, E. Shahhaidar, and B. Padasdao, “Microwave and wearable technologies for 5G,” in 2015 12th International Conference on Telecommunication in Modern Satellite, Cable and Broadcasting Services (TELSIKS), 2015, pp. 183–188.
10.1109/TELSKS.2015.7357765

BibTeX Abstract

In this paper we discuss the challenges and opportunities that the fifth generation (5G) wireless access will bring to the telecommunications market. 5G refers to the next generation mobile communications that will be implemented beyond 2020, and it is expected to be a backbone of Internet of Things (IoT), linking fixed and mobile devices. 5G should include an innovative set of technologies that will radically change our private and professional lives though applications of novel services, such as remote healthcare, driverless cars, wireless robots and connected homes, changing in that way boundaries between the real and cyber worlds. Advanced technologies will be required to achieve this goal, including utilizing higher frequency bands, advanced multi-antenna and scanning antenna systems, and wireless power transmission and self-powering mechanisms for portable and wearable devices.
```
@inproceedings{7357765,
  author = {Boric-Lubecke, O. and Lubecke, V. M. and Jokanovic, B. and Singh, A. and Shahhaidar, E. and Padasdao, B.},
  booktitle = {2015 12th International Conference on Telecommunication in Modern Satellite, Cable and Broadcasting Services (TELSIKS)},
  title = {Microwave and wearable technologies for 5G},
  year = {2015},
  pages = {183-188},
  keywords = {5G mobile communication;Internet of Things;microwave antenna arrays;next generation networks;radiofrequency power transmission;scanning antennas;wearable antennas;5G wireless access;Internet of Things;IoT;advanced multiantenna system;fifth generation wireless access;fixed device;higher frequency bands;mobile device;next generation mobile communication;portable device;scanning antenna system;self-powering mechanism;telecommunications market;wearable device;wireless power transmission;5G mobile communication;Antennas;Biomedical monitoring;Wearable sensors;Wireless communication;Wireless sensor networks;5G;Internet of Things;Scanning Antennas;Self-Powered Devices;Wearable Devices},
  doi = {10.1109/TELSKS.2015.7357765},
  month = oct
}
```
N. Vojnovic, B. Jokanovic, M. Radovanovic, and F. Mesa, “Tunable second-order bandpass filter based on dual ENZ waveguide,” in 2015 9th International Congress on Advanced Electromagnetic Materials in Microwaves and Optics (METAMATERIALS), 2015, pp. 316–318.
10.1109/MetaMaterials.2015.7342434

BibTeX Abstract

A novel tunable filter based on ENZ waveguide technology is presented and discussed. This kind of filter utilizes the possibility of independent tuning of two types of resonances that occur in ENZ waveguides using short slot cuts in the ENZ channels. By forming a dual-channel configuration, a second-order bandpass filter can be obtained using zero-order-resonance (ZOR) from one channel and Fabry-Perot (FP) resonance from the other one (whose frequency is slightly different from ZOR). Both resonances can be simultaneously and equally tuned by changing the respective slots’ lengths. The maximum observed passband shift is 900 MHz or 8.3%. During filter tuning, 3 dB-bandwidth varies between 330 MHz (3.4%) and 470 MHz (4.4%) as the length of the tuning slots decreases. Maximum insertion loss observed is 1.8 dB.
```
@inproceedings{7342434,
  author = {Vojnovic, N. and Jokanovic, B. and Radovanovic, M. and Mesa, F.},
  booktitle = {2015 9th International Congress on Advanced Electromagnetic Materials in Microwaves and Optics (METAMATERIALS)},
  title = {Tunable second-order bandpass filter based on dual ENZ waveguide},
  year = {2015},
  pages = {316-318},
  keywords = {Fabry-Perot resonators;band-pass filters;resonator filters;waveguide filters;ENZ channels;ENZ waveguide technology;FP resonance;Fabry-Perot resonance;ZOR;dual ENZ waveguide;dual-channel configuration;filter tuning;frequency 330 MHz to 470 MHz;frequency 900 MHz;insertion loss;loss 1.8 dB;passband shift;tunable second-order bandpass filter;tuning slots;zero-order-resonance;Band-pass filters;Electromagnetics;Metamaterials;Optical waveguides;Passband;Tuning},
  doi = {10.1109/MetaMaterials.2015.7342434},
  month = sep
}
```

M. Radovanovic, B. Jokanovic, and N. Vojnovic, “Design of dual-band bandpas filter using double ENZ waveguide,” in 9th International Congress on Advanced Electromagnetic Materials in Microwaves and Optics (METAMATERIALS), 2015.


BibTeX

@inproceedings{mm13,
  title = {Design of dual-band bandpas filter using double ENZ waveguide},
  author = {Radovanovic, M. and Jokanovic, B. and Vojnovic, N.},
  booktitle = {9th International Congress on Advanced Electromagnetic Materials in Microwaves and Optics (METAMATERIALS)},
  year = {2015}
}

N. Vojnović, B. Jokanović, M. Mitrović, F. Mesa, and F. Medina, “Tuning ZOR in ENZ waveguide using a single longitudinal slot and equivalent circuit parameter extraction,” in 2014 8th International Congress on Advanced Electromagnetic Materials in Microwaves and Optics, 2014, pp. 283–285.

10.1109/MetaMaterials.2014.6948676
BibTeX	Abstract

In this paper, the effects of placing a longitudinal slot in the channel region of a rectangular waveguide ENZ structure, are analyzed. A following investigation showed that changing the length of this slot can be employed to achieve tuning of only the tunneling frequency. Maximum resonant frequency shift reported is 11%. In addition, the equivalent circuit for the ENZ structure with this kind of slot configuration was derived with an excellent agreement between numerical and full-wave simulations.

@inproceedings{6948676,
  author = {Vojnović, N. and Jokanović, B. and Mitrović, M. and Mesa, F. and Medina, F.},
  booktitle = {2014 8th International Congress on Advanced Electromagnetic Materials in Microwaves and Optics},
  title = {Tuning ZOR in ENZ waveguide using a single longitudinal slot and equivalent circuit parameter extraction},
  year = {2014},
  pages = {283-285},
  keywords = {electromagnetic metamaterials;rectangular waveguides;tunnelling;ENZ structure;ENZ waveguide;channel region;equivalent circuit;full-wave simulations;longitudinal slot;maximum resonant frequency shift;metamaterials;numerical simulations;rectangular waveguide ENZ structure;single longitudinal slot and equivalent circuit parameter extraction;slot configuration;tuning ZOR;tunneling frequency;Equivalent circuits;Metamaterials;Optical waveguides;Resonant frequency;Tuning;Tunneling},
  doi = {10.1109/MetaMaterials.2014.6948676},
  month = aug
}

N. Boskovic, B. Jokanovic, and A. Nesic, “Frequency Scanning Antenna Array with Enhanced Side lobe Suppression,” in 8th International Congress on Advanced Electromagnetic Materials in Microwaves and Optics (METAMATERIALS), 2014.

10.1109/MetaMaterials.2014.6948597
BibTeX

@inproceedings{mm10,
  title = {Frequency Scanning Antenna Array with Enhanced Side lobe Suppression},
  author = {Boskovic, N. and Jokanovic, B. and Nesic, A.},
  booktitle = {8th International Congress on Advanced Electromagnetic Materials in Microwaves and Optics (METAMATERIALS)},
  year = {2014},
  doi = {10.1109/MetaMaterials.2014.6948597}
}

V. Milosevic, R. Bojanic, and B. Jokanovic, “Analytical Model of Transmission Line Metamaterial with Asymmetricaly Coupled Split-Ring Resonators,” in 8th International Congress on Advanced Electromagnetic Materials in Microwaves and Optics (METAMATERIALS), 2014.


BibTeX		Download

@inproceedings{mm11,
  title = {Analytical Model of Transmission Line Metamaterial with Asymmetricaly Coupled Split-Ring Resonators},
  author = {Milosevic, V. and Bojanic, R. and Jokanovic, B.},
  booktitle = {8th International Congress on Advanced Electromagnetic Materials in Microwaves and Optics (METAMATERIALS)},
  year = {2014}
}

R. Bojanic, V. Milosevic, and B. Jokanovic, “Enhanced Modelling of Asymmetric Split-Ring-Resonators in Printed Circuits,” in 8th International Congress on Advanced Electromagnetic Materials in Microwaves and Optics (METAMATERIALS), 2014.


BibTeX

@inproceedings{mm12,
  title = {Enhanced Modelling of Asymmetric Split-Ring-Resonators in Printed Circuits},
  author = {Bojanic, R. and Milosevic, V. and Jokanovic, B.},
  booktitle = {8th International Congress on Advanced Electromagnetic Materials in Microwaves and Optics (METAMATERIALS)},
  year = {2014}
}

N. M. Boskovic, B. S. Jokanovic, and A. D. Nesic, “Compact frequency scanning antenna array with SRR phase shifters,” in 2013 11th International Conference on Telecommunications in Modern Satellite, Cable and Broadcasting Services (TELSIKS), 2013, vol. 02, pp. 437–439.
10.1109/TELSKS.2013.6704415

BibTeX Abstract

We present a novel design of frequency-scanning array antenna which consists of eight antiresonant dipoles fed by balanced microstrip line. Feeding network contains four elongated split-ring resonators (SRRs) placed between dipoles to increase the frequency dependant phase difference between radiating elements. Split-ring resonators are with gap parallel and far from microstrip line that provides better matching in a wider frequency range in comparison to the similar SRRs with gap close to microstrip line. The beam scanning is found to be Δ=36° with frequency variation in the range from 5.7GHz to 6.1GHz and a very flat gain between 12.5 and 13.6dBi.
```
@inproceedings{6704415,
  author = {Boskovic, N. M. and Jokanovic, B. S. and Nesic, A. D.},
  booktitle = {2013 11th International Conference on Telecommunications in Modern Satellite, Cable and Broadcasting Services (TELSIKS)},
  title = {Compact frequency scanning antenna array with SRR phase shifters},
  year = {2013},
  volume = {02},
  pages = {437-439},
  keywords = {antenna phased arrays;microstrip lines;microwave antenna arrays;microwave resonators;SRR;antiresonant dipoles;balanced microstrip line;compact frequency scanning antenna array;elongated split-ring resonators;frequency 5.7 GHz to 6.1 GHz;frequency dependant phase difference;gain 12.5 dB to 13.6 dB;Antenna arrays;Arrays;Dipole antennas;Microstrip;Phase shifters;Resonant frequency;Frequency scanning antenna;Phase shifter;Split-ring resonator},
  doi = {10.1109/TELSKS.2013.6704415},
  month = oct
}
```
V. Milosevic, B. Jokanovic, and R. Bojanic, “Tuning EIT-like response in cross coupled SRRs,” in 2013 11th International Conference on Telecommunications in Modern Satellite, Cable and Broadcasting Services (TELSIKS), 2013, vol. 01, pp. 29–32.
10.1109/TELSKS.2013.6704887

BibTeX Abstract

In this paper we present mimicking of the electromagnetically induced transparency (EIT) effect, obtained in metamaterial transmission line loaded with two cross coupled SRRs placed at the opposite sides of the line. The increased group delay between 2ns and 3ns is observed in the EIT-like transmission band. We demonstrate possibility of tuning the EIT-like frequency in the range of 15% by shifting the vertical gaps far from the line and to the line. That is followed by the change of the EIT-like magnitude in the range ±1.2dB in respect to the basic case. If changing the position of horizontal gaps to the left and to the right, the EIT-like frequency changes in the range of 13.7%, but is followed with great change of the transmission and reflection coefficients, so that way of tuning can be used to switch ON/OFF the EIT-like response.
```
@inproceedings{6704887,
  author = {Milosevic, V. and Jokanovic, B. and Bojanic, R.},
  booktitle = {2013 11th International Conference on Telecommunications in Modern Satellite, Cable and Broadcasting Services (TELSIKS)},
  title = {Tuning EIT-like response in cross coupled SRRs},
  year = {2013},
  volume = {01},
  pages = {29-32},
  keywords = {electromagnetic metamaterials;electromagnetic wave reflection;electromagnetic wave transmission;microstrip lines;resonators;transmission lines;EIT-like response tuning;cross coupled SRR;electromagnetically induced transparency effect;group delay;metamaterial transmission line;reflection coefficients;split-ring resonator;transmission coefficients;Delays;Metamaterials;Optical resonators;Power transmission lines;Resonant frequency;Tomography;Tuning;Electromagnetically induced transparency;Metamaterials;Microstrip line;Split-ring resonator},
  doi = {10.1109/TELSKS.2013.6704887},
  month = oct
}
```

V. Milosevic, R. Bojanić, B. Jokanović, and B. Jelenković, “EIT-like response in asymmetrically coupled split ring resonators,” in 2013 15th International Conference on Transparent Optical Networks (ICTON), 2013, pp. 1–4.

10.1109/ICTON.2013.6602781
BibTeX	Abstract

In this paper we demonstrate electromagnetically induced transparency achieved in metamaterials in which electromagnetic waves propagate along transmission line interacting with broadside coupled split-ring resonators. We introduce for the first time the EIT metamaterial excited with guided waves that exhibit a very low insertion loss followed with a large group index of refraction greater than 200 and large enhancement in group delay, enabling a significant slowdown of waves. We also demonstrate a precise control of the EIT response by moving the gaps in split-ring resonators.

@inproceedings{6602781,
  author = {Milosevic, V. and Bojanić, R. and Jokanović, B. and Jelenković, B.},
  booktitle = {2013 15th International Conference on Transparent Optical Networks (ICTON)},
  title = {EIT-like response in asymmetrically coupled split ring resonators},
  year = {2013},
  pages = {1-4},
  keywords = {optical losses;optical metamaterials;optical resonators;refractive index;self-induced transparency;asymmetrically coupled split ring resonators;broadside coupled split-ring resonators;electromagnetically induced transparency;group refractive index;insertion loss;metamaterials;transmission line;Absorption;Delays;Indexes;Metamaterials;Optical resonators;Power transmission lines;Tomography;electromagnetically induced transparency;metamaterials;slow light},
  doi = {10.1109/ICTON.2013.6602781},
  issn = {2162-7339},
  month = jun
}

N. Boskovic, B. Jokanovic, and A. Nesic, “Printed Scanning Antenna Array with SRR Phase Shifters,” in 7th International Congress on Advanced Electromagnetic Materials in Microwaves and Optics (METAMATERIALS), 2013.


BibTeX

@inproceedings{mm07,
  title = {Printed Scanning Antenna Array with SRR Phase Shifters},
  author = {Boskovic, N. and Jokanovic, B. and Nesic, A.},
  booktitle = {7th International Congress on Advanced Electromagnetic Materials in Microwaves and Optics (METAMATERIALS)},
  year = {2013}
}

V. Milosevic, R. Bojanic, and B. Jokanovic, “Effective Bianisotropic Parameters of Metamaterial Transmission Line,” in 7th International Congress on Advanced Electromagnetic Materials in Microwaves and Optics (METAMATERIALS), 2013.


BibTeX

@inproceedings{mm08,
  title = {Effective Bianisotropic Parameters of Metamaterial Transmission Line},
  author = {Milosevic, V. and Bojanic, R. and Jokanovic, B.},
  booktitle = {7th International Congress on Advanced Electromagnetic Materials in Microwaves and Optics (METAMATERIALS)},
  year = {2013}
}

M. Mitrovic, B. Jokanovic, and N. Vojnovic, “Experimental verification of wideband tuning of the tunneling frequency in ENZ channel,” in 6th International Congress on Advanced Electromagnetic Materials in Microwaves and Optics (METAMATERIALS), 2012.


BibTeX

@inproceedings{mm04,
  title = {Experimental verification of wideband tuning of the tunneling frequency in ENZ channel},
  author = {Mitrovic, M. and Jokanovic, B. and Vojnovic, N.},
  booktitle = {6th International Congress on Advanced Electromagnetic Materials in Microwaves and Optics (METAMATERIALS)},
  year = {2012}
}

V. Milosevic, R. Bojanic, B. Jokanovic, and B. Jelenkovic, “EIT-like response in asymmetrically coupled split-ring resonators,” in 6th International Congress on Advanced Electromagnetic Materials in Microwaves and Optics (METAMATERIALS), 2012.


BibTeX

@inproceedings{mm05,
  title = {EIT-like response in asymmetrically coupled split-ring resonators},
  author = {Milosevic, V. and Bojanic, R. and Jokanovic, B. and Jelenkovic, B.},
  booktitle = {6th International Congress on Advanced Electromagnetic Materials in Microwaves and Optics (METAMATERIALS)},
  year = {2012}
}

R. Bojanic, B. Jokanovic, and V. Milosevic, “On the orientation of split-ring resonators excited by guided waves,” in 6th International Congress on Advanced Electromagnetic Materials in Microwaves and Optics (METAMATERIALS), 2012.


BibTeX

@inproceedings{mm06,
  title = {On the orientation of split-ring resonators excited by guided waves},
  author = {Bojanic, R. and Jokanovic, B. and Milosevic, V.},
  booktitle = {6th International Congress on Advanced Electromagnetic Materials in Microwaves and Optics (METAMATERIALS)},
  year = {2012}
}

R. Bojanic, B. Jokanovic, and V. Milosevic, “Multiband delay lines with reconfigurable split-ring resonators,” in 2011 10th International Conference on Telecommunication in Modern Satellite Cable and Broadcasting Services (TELSIKS), 2011, vol. 1, pp. 31–34.
10.1109/TELSKS.2011.6112060

BibTeX Abstract

In this paper we proposed the novel multiband unit cell which consists of two types of split-ring resonators coupled to microstrip line: the broadiside coupled and the single split-ring resonator. Novel unit cell exhibits two left-handed bands that can be shifted by twisting split rings for certain angle or by changing their lengths. This unit cell is suitable for design of multiband frequency scanning antennas since can provide phase shift of 70 degrees per 100MHz of frequency shift.
```
@inproceedings{6112060,
  author = {Bojanic, R. and Jokanovic, B. and Milosevic, V.},
  booktitle = {2011 10th International Conference on Telecommunication in Modern Satellite Cable and Broadcasting Services (TELSIKS)},
  title = {Multiband delay lines with reconfigurable split-ring resonators},
  year = {2011},
  volume = {1},
  pages = {31-34},
  keywords = {delay lines;multifrequency antennas;resonators;left-handed bands;multiband delay lines;multiband frequency scanning antennas;reconfigurable split-ring resonators;Delay;Delay lines;Indexes;Metamaterials;Microstrip;Refractive index;Resonant frequency;Delay line;Effective parameters;Group delay;Left-handed metamaterials;Split-ring resonator},
  doi = {10.1109/TELSKS.2011.6112060},
  month = oct
}
```

V. Milosevic and B. Jokanovic, “Resonant Frequencies of Split Ring Resonator in Respect of Angle between Slits,” in 5th International Congress on Advanced Electromagnetic Materials in Microwaves and Optics (METAMATERIALS), 2011.


BibTeX

@inproceedings{mm03,
  title = {Resonant Frequencies of Split Ring Resonator in Respect of Angle between Slits},
  author = {Milosevic, V. and Jokanovic, B.},
  booktitle = {5th International Congress on Advanced Electromagnetic Materials in Microwaves and Optics (METAMATERIALS)},
  year = {2011}
}

V. Milosevic, B. Jokanovic, and B. Kolundzija, “Microwave stereometamaterials and parameter extraction,” in 4th International Congress on Advanced Electromagnetic Materials in Microwaves and Optics (METAMATERIALS), 2010.


BibTeX

@inproceedings{mm02,
  title = {Microwave stereometamaterials and parameter extraction},
  author = {Milosevic, V. and Jokanovic, B. and Kolundzija, B.},
  booktitle = {4th International Congress on Advanced Electromagnetic Materials in Microwaves and Optics (METAMATERIALS)},
  year = {2010}
}

O. Boric-Lubecke, V. M. Lubecke, B. K. Park, W. Massagram, and B. Jokanovic, “Heartbeat interval extraction using doppler radar for health monitoring,” in 2009 9th International Conference on Telecommunication in Modern Satellite, Cable, and Broadcasting Services, 2009, pp. 139–142.

10.1109/TELSKS.2009.5339492
BibTeX	Abstract

In this paper heartbeat interval extraction methods using Doppler radar are reviewed. While single channel CW radar offers simple architecture and signal processing, this method is very sensitive to subject position and may result in rate doubling, or the coupling between heart and respiratory rates. Quadrature radio architecture is used to overcome this limitation. The use of linear and non-linear demodulation methods was explored for heartbeat interval extraction.

@inproceedings{5339492,
  author = {Boric-Lubecke, O. and Lubecke, V. M. and Park, B. K. and Massagram, W. and Jokanovic, B.},
  booktitle = {2009 9th International Conference on Telecommunication in Modern Satellite, Cable, and Broadcasting Services},
  title = {Heartbeat interval extraction using doppler radar for health monitoring},
  year = {2009},
  pages = {139-142},
  keywords = {Doppler radar;biomedical measurement;cardiology;demodulation;patient monitoring;Doppler radar;health monitoring;heart rate;heartbeat interval extraction;linear demodulation;nonlinear demodulation;quadrature radio architecture;rate doubling;respiratory rate;subject position;Biomedical monitoring;Demodulation;Doppler radar;Frequency;Heart beat;Heart rate variability;Radar detection;Radar signal processing;Remote monitoring;Transceivers;Doppler radar;heart rate variability;heartbeat interval;physiological monitoring},
  doi = {10.1109/TELSKS.2009.5339492},
  month = oct
}

R. H. Geschke, B. Jokanovic, and P. Meyer, “Compact triple-band resonators using multiple split-ring resonators,” in 2009 European Microwave Conference (EuMC), 2009, pp. 366–369.
10.23919/EUMC.2009.5296442

BibTeX Abstract

A new design for a triple-mode resonator based on multiple split-ring resonators is introduced. All three modes exhibit very high unloaded Q-factors ranging from 100 to 240 which is suitable for design of high selectivity filters. This structure exhibits transmission zeros between passbands. Changing the ring dimensions allows the resonant frequencies and bandwidths of the modes to be controlled. The effects of substrate thickness, ring widths and spacing and total resonator size are investigated and described. Measured data for two different resonators are compared to simulated data and very good agreement was found.
```
@inproceedings{5296442,
  author = {Geschke, R. H. and Jokanovic, B. and Meyer, P.},
  booktitle = {2009 European Microwave Conference (EuMC)},
  title = {Compact triple-band resonators using multiple split-ring resonators},
  year = {2009},
  pages = {366-369},
  keywords = {Q-factor;poles and zeros;resonator filters;Q-factor;resonator filters;ring width;split-ring resonators;substrate thickness;total resonator size;transmission zeros;triple-band resonators;Band pass filters;Bandwidth;Dual band;Microwave filters;Passband;Q factor;Resonance;Resonant frequency;Resonator filters;Superconducting filters},
  doi = {10.23919/EUMC.2009.5296442},
  month = sep
}
```

S. Ponjavic, B. Jokanovic, and R. Geschke, “Extraction of Effective Electromagnetic Parameters of Microstrip Complementary Split-Ring Resonators,” in 3rd International Congress on Advanced Electromagnetic Materials in Microwaves and Optics (METAMATERIALS), 2009.


BibTeX

@inproceedings{mm01,
  title = {Extraction of Effective Electromagnetic Parameters of Microstrip Complementary Split-Ring Resonators},
  author = {Ponjavic, S. and Jokanovic, B. and Geschke, R.},
  booktitle = {3rd International Congress on Advanced Electromagnetic Materials in Microwaves and Optics (METAMATERIALS)},
  year = {2009}
}

V. Radonic, V. Crnojevic-Bengin, and B. Jokanovic, “Novel Left-Handed Unit Cell for Multi-Band Filtering Applications,” in 2008 38th European Microwave Conference, 2008, pp. 694–697.
10.1109/EUMC.2008.4751547

BibTeX Abstract

In this paper, a new type of left-handed unit cell is proposed, designed for multi-band operation. The proposed unit cell consists of a grounded square metal patch, capacitively coupled to the ring loaded with a grounded inductive stub. By varying some geometrical parameters of the unit cell, its three passbands can be arbitrarily positioned. To demonstrate the applicability of the proposed unit cell, low-loss bandpass filter of the third order has been designed, which exhibits 43% 3-dB fractional bandwidth centred at 5.1 GHz. The proposed filter can be used in modern wireless communication systems that operate according to IEEE 801.11a and HyperLanII standards.
```
@inproceedings{4751547,
  author = {Radonic, V. and Crnojevic-Bengin, V. and Jokanovic, B.},
  booktitle = {2008 38th European Microwave Conference},
  title = {Novel Left-Handed Unit Cell for Multi-Band Filtering Applications},
  year = {2008},
  pages = {694-697},
  keywords = {IEEE standards;band-pass filters;metamaterials;microwave filters;mobile radio;radiocommunication;HyperLanll standards;IEEE 801.11a standards;bandpass filter;frequency 5.1 GHz;grounded inductive stub;grounded square metal patch;left-handed unit cell;low-loss filter;metamaterials;multiband filtering;wireless communication systems;Band pass filters;Dielectric losses;Dielectric substrates;Filtering;Geometry;Magnetic materials;Metamaterials;Optical ring resonators;Passband;Wireless communication},
  doi = {10.1109/EUMC.2008.4751547},
  month = oct
}
```
O. Boric-Lubecke, W. Massagram, V. M. Lubecke, A. Host-Madsen, and B. Jokanovic, “Heart Rate Variability Assessment Using Doppler Radar with Linear Demodulation,” in 2008 38th European Microwave Conference, 2008, pp. 420–423.
10.1109/EUMC.2008.4751478

BibTeX Abstract

Heart rate variability (HRV) describes the time variation in beat-to-beat interval, and reflects the manner in which the cardiovascular regulatory system responds to demands, stress, and illness. A particular advantage of Doppler radar for HRV monitoring is the ability to detect and monitor heart and respiration signals simultaneously, and thus provide independent measures of HRV, and respiration-related fluctuations. High accuracy in obtaining HRV parameters using Doppler radar is achieved using linear demodulation method, including SDNN of about 10 ms, and mean beat to beat interval accuracy of close to 1 ms. In addition, respiration signals were obtained simultaneously with the heart signals, clearly showing a correlation between respiration cycles and heart rate variability.
```
@inproceedings{4751478,
  author = {Boric-Lubecke, O. and Massagram, W. and Lubecke, V. M. and Host-Madsen, A. and Jokanovic, B.},
  booktitle = {2008 38th European Microwave Conference},
  title = {Heart Rate Variability Assessment Using Doppler Radar with Linear Demodulation},
  year = {2008},
  pages = {420-423},
  keywords = {Doppler radar;cardiovascular system;demodulation;electrocardiography;medical signal detection;patient monitoring;pneumodynamics;radar detection;Doppler radar;ECG;HRV monitoring;beat-to-beat interval;cardiovascular regulatory system;heart rate variability assessment;heart signal detection;linear demodulation method;respiration cycles;respiration signal detection;respiration-related fluctuation;Cardiology;Demodulation;Doppler radar;Fluctuations;Heart rate;Heart rate variability;Particle measurements;Radar detection;Remote monitoring;Stress},
  doi = {10.1109/EUMC.2008.4751478},
  month = oct
}
```

V. Radonic, V. Crnojevic-Bengin, and B. Jokanovic, “Novel unit cell based on the grounded patch for filter applications,” in Mediterranean Microwave Symposium MMS 2008, 2008.


BibTeX

@inproceedings{radonic2008novel,
  title = {Novel unit cell based on the grounded patch for filter applications},
  author = {Radonic, Vasa and Crnojevic-Bengin, Vesna and Jokanovic, Branka},
  booktitle = {Mediterranean Microwave Symposium MMS 2008},
  year = {2008}
}

B. Jokanovic, V. Crnojevic-Bengin, and O. Boric-Lubecke, “Miniature Lowloss Metamaterial Unit Cells Based on Grounded Spirals and Applications in Filter Design,” in NATO Advanced Research Workshop: Metamaterials for Secure Information and Communication Technologies, 2008.


BibTeX

@inproceedings{nato,
  title = {Miniature Lowloss Metamaterial Unit Cells Based on Grounded Spirals and Applications in Filter Design},
  author = {Jokanovic, B. and Crnojevic-Bengin, V. and Boric-Lubecke, O.},
  booktitle = {NATO Advanced Research Workshop: Metamaterials for Secure Information and Communication Technologies},
  year = {2008}
}

B. Jokanovic and V. Crnojevic-Bengin, “Super-compact left-handed resonator for filter applications,” in 2007 European Microwave Conference, 2007, pp. 716–719.
10.1109/EUMC.2007.4405292

BibTeX Abstract

In this paper, novel super-compact left-handed (LH) resonator is presented, based on a grounded double spiral end-coupled to the host microstrip line. The overall dimensions of the resonator are lambdag/59 by lambdag/27, where lambdag denotes the guided wavelength. The proposed resonator shows lower insertion loss at resonant frequency and higher Q-factor in comparison with previously reported LH resonators. Using the proposed resonator, miniature 2nd and 3rd order filters are designed, fabricated and measured.
```
@inproceedings{4405292,
  author = {Jokanovic, B. and Crnojevic-Bengin, V.},
  booktitle = {2007 European Microwave Conference},
  title = {Super-compact left-handed resonator for filter applications},
  year = {2007},
  pages = {716-719},
  keywords = {Q-factor;microstrip lines;microstrip resonators;resonator filters;Q-factor;grounded double spiral end-coupled resonator;insertion loss;microstrip line;microstrip resonators;miniature filters;resonator filter;super-compact left-handed resonator;Insertion loss;Metamaterials;Microstrip filters;Microstrip resonators;Permittivity;Q factor;Resonance;Resonant frequency;Resonator filters;Spirals},
  doi = {10.1109/EUMC.2007.4405292},
  month = oct
}
```

B. S. Jokanovic and V. Crnojevic-Bengin, “Miniaturization of Left-Handed Resonators Based on Grounded Spirals,” in 2007 8th International Conference on Telecommunications in Modern Satellite, Cable and Broadcasting Services, 2007, pp. 293–296.

10.1109/TELSKS.2007.4375995
BibTeX	Abstract

This paper presents a novel technique for miniaturization of left-handed resonator based on four grounded spirals. The modified resonators, that consist of spirals with different line widths are designed, fabricated and compared with original ones. Minimal resonator size of lambdag/22 by lambdag/22 is achieved with -2.14 dB insertion loss and unloaded Q-factor of 65.5.

@inproceedings{4375995,
  author = {Jokanovic, B. S. and Crnojevic-Bengin, V.},
  booktitle = {2007 8th International Conference on Telecommunications in Modern Satellite, Cable and Broadcasting Services},
  title = {Miniaturization of Left-Handed Resonators Based on Grounded Spirals},
  year = {2007},
  pages = {293-296},
  keywords = {metamaterials;resonators;grounded spirals;left-handed resonators;loss 2.14 dB;miniaturization technique;Band pass filters;Circuits;Fractals;Insertion loss;Metamaterials;Microstrip filters;Microstrip resonators;Optical ring resonators;Resonant frequency;Spirals;Bandpass filter;Left-handed metamaterials;Microstrip resonator},
  doi = {10.1109/TELSKS.2007.4375995},
  month = sep
}

V. Radonic, V. Crnojevic-Bengin, and B. Jokanovic, “On the Orientation of Split-Ring Resonators in Metamaterial Media,” in 2007 8th International Conference on Telecommunications in Modern Satellite, Cable and Broadcasting Services, 2007, pp. 645–648.
10.1109/TELSKS.2007.4376098

BibTeX Abstract

Split-ring resonators (SRR) are used both in microstrip and waveguide metamaterial structures to obtain negative values of permeability, whereas complementary split- ring resonators (CSRR) result in negative permittivity when placed below the microstrip. While the orientation of SRR positioned next to the microstrip transmission line significantly influences its performances, it is generally accepted that such dependence does not exist in the case of CSRR-loaded microstrip or SRR-loaded waveguide. In this paper, we show that SRR and CSRR can not be arbitrarily orientated, neither in microstrip nor in waveguide structures. The influence of the orientation is especially visible in the case of multiple CSRR geometries. To validate simulation results, microstrip lines loaded with multiple CSRRs were designed, fabricated and measured.
```
@inproceedings{4376098,
  author = {Radonic, V. and Crnojevic-Bengin, V. and Jokanovic, B.},
  booktitle = {2007 8th International Conference on Telecommunications in Modern Satellite, Cable and Broadcasting Services},
  title = {On the Orientation of Split-Ring Resonators in Metamaterial Media},
  year = {2007},
  pages = {645-648},
  keywords = {metamaterials;resonators;metamaterial media;microstrip;split-ring resonators;waveguide metamaterial structures;Dielectric losses;Dielectric substrates;Etching;Frequency;Magnetic materials;Metamaterials;Microstrip resonators;Permeability;Permittivity;Transmission lines;Left-handed lines;Metamaterials;Split-ring resonators},
  doi = {10.1109/TELSKS.2007.4376098},
  month = sep
}
```
V. Radonic, V. Crnojevic-Bengin, B. Reljic, and B. Jokanovic, “Accuracy of EM Simulation Tools in Modeling of Resonant Left-Handed Microstrip Lines,” in EUROCON 2007 - The International Conference on "Computer as a Tool", 2007, pp. 2104–2109.
10.1109/EURCON.2007.4400520

BibTeX Abstract

Split ring resonators and complementary split ring resonators are used in left-handed media to obtain negative values of permeability and permittivity, respectively. A typical resonant left-handed (LH) microstrip line, composed of complementary split ring resonators (CSSR) and capacitive gaps in the microstrip, exhibits a pass-band behavior. However, a significant shift between the measured and simulated values of the central frequency of the pass-band always occurs. In this paper, three widely used full-wave simulation tools: Ansoft’s high frequency structure simulator, EMSight in Microwave Office, and IE3D from Zeland Software Inc., are compared for the case of resonant LH transmission lines. The simulation results are compared with the measured data.
```
@inproceedings{4400520,
  author = {Radonic, V. and Crnojevic-Bengin, V. and Reljic, B. and Jokanovic, B.},
  booktitle = {EUROCON 2007 - The International Conference on "Computer as a Tool"},
  title = {Accuracy of EM Simulation Tools in Modeling of Resonant Left-Handed Microstrip Lines},
  year = {2007},
  pages = {2104-2109},
  keywords = {metamaterials;microstrip lines;microstrip resonators;Ansoft high frequency structure simulator;EMSight simulation tool;IE3D tool;capacitive gap;complementary split ring resonator;pass-band behavior;resonant LH transmission lines;resonant left-handed microstrip line;Dielectric measurements;Etching;Frequency;Magnetic materials;Magnetic resonance;Metamaterials;Microstrip resonators;Permeability;Permittivity;Transmission line measurements;HFSS;IE3D;MWO;left-handed;metamaterial},
  doi = {10.1109/EURCON.2007.4400520},
  month = sep
}
```

D. Markovic, B. Jokanovic, M. Marjanovic, and M. Djordjevic, “Improved Method for Measurement of the Dielectric Properties of Microwave Substrates Using Microstrip T-resonator,” in 2007 IEEE Instrumentation Measurement Technology Conference IMTC 2007, 2007, pp. 1–3.

10.1109/IMTC.2007.379138
BibTeX	Abstract

The paper presents an improved method for broadband characterization of dielectric materials at microwave frequencies. The results are calculated using closed form expressions and by HFSS. The proposed method provides more precise calculation of conductor losses by taking into account surface roughness. Compared with previously proposed methods, the new approach models loss tangent with more accuracy (both using closed-form expressions and EM simulator).

@inproceedings{4258362,
  author = {Markovic, D. and Jokanovic, B. and Marjanovic, M. and Djordjevic, M.},
  booktitle = {2007 IEEE Instrumentation Measurement Technology Conference IMTC 2007},
  title = {Improved Method for Measurement of the Dielectric Properties of Microwave Substrates Using Microstrip T-resonator},
  year = {2007},
  pages = {1-3},
  keywords = {dielectric properties;microstrip resonators;microwave materials;printed circuits;surface roughness;EM simulator;HFSS;broadband characterization;closed form expressions;conductor losses;dielectric properties;microstrip T-resonator;microwave substrates;models loss tangent;surface roughness;Conducting materials;Dielectric materials;Dielectric measurements;Dielectric substrates;Microstrip;Microwave frequencies;Microwave measurements;Microwave theory and techniques;Rough surfaces;Surface roughness;EM-simulations;T-resonator;dielectric constant;loss tangent},
  doi = {10.1109/IMTC.2007.379138},
  issn = {1091-5281},
  month = may
}

B. Jokanovic, V. Crnojevic-Bengin, and O. Boric-Lubecke, “Novel Reconfigurable Left-handed Unit Cell for Filter Applications,” in PIERS-Progress in Electromagnetics Research Symposium, 2007.


BibTeX

@inproceedings{piers,
  title = {Novel Reconfigurable Left-handed Unit Cell for Filter Applications},
  author = {Jokanovic, B. and Crnojevic-Bengin, V. and Boric-Lubecke, O.},
  booktitle = {PIERS-Progress in Electromagnetics Research Symposium},
  year = {2007}
}

V. Crnojevic-Bengin, V. Radonic, and B. Jokanovic, “Complementary Split Ring Resonators Using Square Sierpinski Fractal Curves,” in 2006 European Microwave Conference, 2006, pp. 1333–1335.

10.1109/EUMC.2006.281262
BibTeX	Abstract

Split ring resonators and complementary split ring resonators are used in a left-handed media to obtain negative values of permeability and permittivity, respectively. In this paper, novel split ring geometry using square Sierpinski fractal curves is proposed, that reduces resonant frequency of the structure and achieves improved frequency selectivity in the upper transition band. In order to validate the results, left-handed microstrip line that uses square Sierpinski complementary split ring resonators is designed, fabricated and measured

@inproceedings{4058078,
  author = {Crnojevic-Bengin, V. and Radonic, V. and Jokanovic, B.},
  booktitle = {2006 European Microwave Conference},
  title = {Complementary Split Ring Resonators Using Square Sierpinski Fractal Curves},
  year = {2006},
  pages = {1333-1335},
  keywords = {fractals;metamaterials;microstrip resonators;complementary split ring resonators;frequency selectivity;left-handed metamaterials;left-handed microstrip line;split ring geometry;square Sierpinski fractal curves;upper transition band;Band pass filters;Fractals;Geometry;Metamaterials;Microstrip resonators;Optical ring resonators;Permeability;Permittivity;Resonance;Resonant frequency;Bandpass Filters;Complementary Split Ring;Fractals;Left-handed metamaterials;Microstrip Resonators},
  doi = {10.1109/EUMC.2006.281262},
  month = sep
}

M. Peric, B. Jokanovic, P. Manojlovic, and N. Popovic, “Low-cost direct 23GHz transceiver for wideband wireless Internet access,” in 2005 European Microwave Conference, 2005, vol. 3, pp. 3 pp.-.

10.1109/EUMC.2005.1610314
BibTeX	Abstract

This paper describes realization of a low-cost transceiver based on direct modulation and demodulation at 23GHz. The system is designed for bit rates from 34 to 52Mbit/s with shaped OQPSK modulation. Carrier recovery is performed by decision feedback Costas loop with voltage control dielectric resonator oscillator (VCDRO). Transmitter frequency tolerances and VCDRO temperature drift are compensated by high carrier recovery pull in range of 5.2MHz. Complete receiver dynamics from -82 to -20dBm is obtained only by baseband AGC circuitry. All spectrum shaping and interference suppression characteristics are fulfilled by analogue baseband filtering.

@inproceedings{1610314,
  author = {Peric, M. and Jokanovic, B. and Manojlovic, P. and Popovic, N.},
  booktitle = {2005 European Microwave Conference},
  title = {Low-cost direct 23GHz transceiver for wideband wireless Internet access},
  year = {2005},
  volume = {3},
  pages = {3 pp.-},
  keywords = {Internet;dielectric resonator oscillators;interference suppression;quadrature phase shift keying;radio access networks;spectral analysis;transceivers;23 GHz;34 to 52 Mbit/s;5.2 MHz;OQPSK modulation;VCDRO temperature drift;analogue baseband filtering;baseband AGC circuitry;carrier recovery;decision feedback Costas loop;direct demodulation;direct modulation;interference suppression;low-cost direct transceiver;receiver dynamics;spectrum shaping;transmitter frequency tolerance;voltage control dielectric resonator oscillator;wideband wireless Internet access;Baseband;Bit rate;Demodulation;Dielectrics;Feedback loop;Internet;Transceivers;Voltage control;Voltage-controlled oscillators;Wideband},
  doi = {10.1109/EUMC.2005.1610314},
  month = oct
}

M. Peric, B. Jokanovic, P. Manojlovic, and N. Popovic, “Low-cost direct 23GHz transceiver for wideband wireless Internet access,” in The European Conference on Wireless Technology, 2005., 2005, pp. 415–417.

10.1109/ECWT.2005.1617745
BibTeX	Abstract

This paper describes realization of a low-cost transceiver based on direct modulation and demodulation at 23 GHz. The system is designed for bit rates from 34 to 52 Mbit/s with shaped OQPSK modulation. Carrier recovery is performed by decision feedback Costas loop with voltage control dielectric resonator oscillator (VCDRO). Transmitter frequency tolerances and VCDRO temperature drift are compensated by high carrier recovery pull in range of 5.2 MHz. Complete receiver dynamics from -82 to -20 dBm is obtained only by baseband AGC circuitry. All spectrum shaping and interference suppression characteristics are fulfilled by analogue baseband filtering

@inproceedings{1617745,
  author = {Peric, M. and Jokanovic, B. and Manojlovic, P. and Popovic, N.},
  booktitle = {The European Conference on Wireless Technology, 2005.},
  title = {Low-cost direct 23GHz transceiver for wideband wireless Internet access},
  year = {2005},
  pages = {415-417},
  keywords = {Internet;analogue circuits;automatic gain control;broadband networks;dielectric resonator oscillators;filters;interference suppression;quadrature phase shift keying;transceivers;voltage control;23 GHz;34 to 52 Mbit/s;VCDRO temperature drift;analogue baseband filtering;baseband AGC circuitry;carrier recovery;decision feedback Costas loop;direct modulation;interference suppression characteristics;low-cost direct transceiver;shaped OQPSK modulation;spectrum shaping;transmitter frequency tolerances;voltage control dielectric resonator oscillator;wideband wireless Internet access;Baseband;Bit rate;Demodulation;Dielectrics;Feedback loop;Internet;Transceivers;Voltage control;Voltage-controlled oscillators;Wideband},
  doi = {10.1109/ECWT.2005.1617745},
  month = oct
}

M. Slovic, B. Jokanovic, and B. Kolundzija, “High efficiency patch antenna for 24 GHz anticollision radar,” in TELSIKS 2005 - 2005 uth International Conference on Telecommunication in ModernSatellite, Cable and Broadcasting Services, 2005, vol. 1, pp. 20–23 vol. 1.
10.1109/TELSKS.2005.1572055

BibTeX Abstract

This paper presents design and measured results in synphase patch antenna for anticollision radar at 24 GHz. The antenna consists of two linear arrays of 24 serially connected patches. The aim was to design an antenna that in azimuth has lobes below -20 dB in ISM range of 24.05-24.25 GHz, at which the anticollision radar operates. The realized antenna has gain of 21.75 dB and efficiency of 60% at the frequency of 24.1 GHz. Three-decibel bandwidth in azimuth is 3.6° and in elevation is 46°. In the range of 24.05-24.25 GHz, gain is higher than 21.15 dB and the reflection coefficient is below -14 dB.
```
@inproceedings{1572055,
  author = {Slovic, M. and Jokanovic, B. and Kolundzija, B.},
  booktitle = {TELSIKS 2005 - 2005 uth International Conference on Telecommunication in ModernSatellite, Cable and Broadcasting Services},
  title = {High efficiency patch antenna for 24 GHz anticollision radar},
  year = {2005},
  volume = {1},
  pages = {20-23 vol. 1},
  keywords = {linear antenna arrays;microstrip antennas;radar;21.75 dB;24 GHz;24.05 to 24.25 GHz;60 percent;ISM range;anticollision radar;high efficiency patch antenna;linear arrays;reflection coefficient;serially connected patches;synphase patch antenna;Antenna measurements;Azimuth;Bandwidth;Frequency;Gain;Linear antenna arrays;Patch antennas;Radar antennas;Radar measurements;Reflection;Anticollision radar;patch radiator;travelling wave antenna},
  doi = {10.1109/TELSKS.2005.1572055},
  month = sep
}
```

B. Jokanovic and M. Rakic, “Broadband electrical characterization of microwave substrates using T-resonator technique,” in 6th International Conference on Telecommunications in Modern Satellite, Cable and Broadcasting Service, 2003. TELSIKS 2003., 2003, vol. 1, pp. 348–351 vol.1.

10.1109/TELSKS.2003.1246242
BibTeX	Abstract

This paper presents an improved method for broadband characterization of microwave substrates. The method is based on response measurement of an open microstrip T-resonator and calculations of an effective length of the resonator using given substrate characteristics and electromagnetic 3D analysis. Two Rogers’ dielectric substrates are measured: TMM 10 and RO 30101 in 1 to 27 GHz band.

@inproceedings{1246242,
  author = {Jokanovic, B. and Rakic, M.},
  booktitle = {6th International Conference on Telecommunications in Modern Satellite, Cable and Broadcasting Service, 2003. TELSIKS 2003.},
  title = {Broadband electrical characterization of microwave substrates using T-resonator technique},
  year = {2003},
  volume = {1},
  pages = {348-351 vol.1},
  keywords = {dielectric losses;dielectric resonators;microstrip resonators;microwave integrated circuits;permittivity;substrates;1 to 27 Hz;Roger dielectric substrate;attenuation;broadband electrical characterization;dielectric constant;electromagnetic 3D analysis;loss factor;microwave substrate;open microstrip T-resonator technique;response measurement;substrate characteristic;Dielectric constant;Dielectric measurements;Dielectric substrates;Electromagnetic measurements;Frequency measurement;Length measurement;Microstrip resonators;Microwave integrated circuits;Microwave theory and techniques;Resonance},
  doi = {10.1109/TELSKS.2003.1246242},
  month = oct
}

B. Jokanovic and A. Marincic, “Microwave circuits based on six-port junction,” in 6th International Conference on Telecommunications in Modern Satellite, Cable and Broadcasting Service, 2003. TELSIKS 2003., 2003, vol. 1, pp. 218–222 vol.1.

10.1109/TELSKS.2003.1246217
BibTeX	Abstract

This paper describes the procedure of microwave circuits construction based on double-Y junction, which is actually a six-port circuit. The procedure is based on S-matrix of lossless double-Y junction. It has been demonstrated how a double-Y junction can be modified into a double-Y balun and a 3 dB quadrature coupler by placing open and short circuits on appropriate ports of a double-Y junction.

@inproceedings{1246217,
  author = {Jokanovic, B. and Marincic, A.},
  booktitle = {6th International Conference on Telecommunications in Modern Satellite, Cable and Broadcasting Service, 2003. TELSIKS 2003.},
  title = {Microwave circuits based on six-port junction},
  year = {2003},
  volume = {1},
  pages = {218-222 vol.1},
  keywords = {S-matrix theory;baluns;coplanar waveguides;microwave circuits;multiport networks;slot lines;waveguide couplers;3 dB quadrature coupler;S-matrix;double-Y balun;lossless double-Y junction;microwave circuit construction;six-port junction;Coplanar waveguides;Coupling circuits;Impedance matching;Microwave circuits;Observability;Scattering;Symmetric matrices},
  doi = {10.1109/TELSKS.2003.1246217},
  month = oct
}

B. Jokanovic, S. Stojanovic, and M. Peric, “Direct QPSK modulator for point-to-point radio link at 23 GHz,” in 5th International Conference on Telecommunications in Modern Satellite, Cable and Broadcasting Service. TELSIKS 2001. Proceedings of Papers (Cat. No.01EX517), 2001, vol. 1, pp. 217–220 vol.1.

10.1109/TELSKS.2001.954879
BibTeX	Abstract

The design and characteristics of a simple direct QPSK modulator for a terrestrial point-to-point radio link is presented. This modulator enables a compact, low cost and high efficiency transmitter. Good sideband suppression, greater then 25 dB is obtained in the frequency range 21.0 to 24.0 GHz, without tuning. The insertion loss is less than 8 dB in 3 GHz bandwidth and the carrier suppression is about 22 dB

@inproceedings{954879,
  author = {Jokanovic, B. and Stojanovic, S. and Peric, M.},
  booktitle = {5th International Conference on Telecommunications in Modern Satellite, Cable and Broadcasting Service. TELSIKS 2001. Proceedings of Papers (Cat. No.01EX517)},
  title = {Direct QPSK modulator for point-to-point radio link at 23 GHz},
  year = {2001},
  volume = {1},
  pages = {217-220 vol.1},
  keywords = {digital radio;interference suppression;microwave links;modulators;quadrature phase shift keying;radio transmitters;21 to 24 GHz;Schottky barrier diodes;Wilkinson divider;branch-line coupler;direct QPSK modulator;point-to-point radio link;sideband suppression;terrestrial radio link;transmitter;Amplitude modulation;Circuits;Costs;Filters;Microstrip;Phase modulation;Quadrature phase shift keying;Radio frequency;Radio link;Radio transmitters},
  doi = {10.1109/TELSKS.2001.954879},
  month = {}
}

B. Jokanovic, V. Trifunovic, and M. Peric, “Microwave mixers for a new generation of wireless systems,” in 2000 8th Telecommunications Forum (TELFOR), 2000.


BibTeX		Download

@inproceedings{telfor_2000,
  author = {Jokanovic, B. and Trifunovic, V. and Peric, M.},
  booktitle = {2000 8th Telecommunications Forum (TELFOR)},
  title = {Microwave mixers for a new generation of wireless systems},
  year = {2000}
}

B. Jokanovic, B. Kolundzija, and A. Marincic, “Theoretical and experimental investigation of parasitic effects in double-Y baluns,” in Telecommunications in Modern Satellite, Cable and Broadcasting Services, 1999. 4th International Conference on, 1999, vol. 1, pp. 206–209 vol.1.
10.1109/TELSKS.1999.804728

BibTeX Abstract

Effects limiting the bandwidth of CPWFGP-CPS double-Y baluns are investigated both theoretically, using 3D electromagnetic simulators and experimentally. Analysis shows two kinds of parasitic effects: (a) parasitic effects that depend on input transmission lines and they are caused by: (a) even mode and parasitic balanced mode (PBM) and (b) parasitic effects that depend on open and short circuited stubs forming the double-Y balun and they are observed in both regular mode and PBM. This theory has been experimentally proven and it enables to predict the frequency of parasitic resonances that appear in the characteristics of CWFGP-CPS baluns and shift them out of the operating frequency bandwidth by changing the physical dimensions of the balun
```
@inproceedings{804728,
  author = {Jokanovic, B. and Kolundzija, B. and Marincic, A.},
  booktitle = {Telecommunications in Modern Satellite, Cable and Broadcasting Services, 1999. 4th International Conference on},
  title = {Theoretical and experimental investigation of parasitic effects in double-Y baluns},
  year = {1999},
  volume = {1},
  pages = {206-209 vol.1},
  keywords = {baluns;coplanar transmission lines;coplanar waveguides;method of moments;strip lines;waveguide theory;3D electromagnetic simulators;CPWFGP-CPS double-Y baluns;double-Y baluns;even mode;frequency;input transmission lines;open circuited stubs;operating frequency bandwidth;parasitic balanced mode;parasitic effects;parasitic resonances;physical dimensions;regular mode;short circuited stubs;Bandwidth;Circuit simulation;Dipole antennas;Distributed parameter circuits;Frequency;Impedance matching;Moment methods;RLC circuits;Resonance;Transmission line theory},
  doi = {10.1109/TELSKS.1999.804728},
  month = {}
}
```

V. Trifunovic, B. Jokanovic, and M. Marijanovic, “Novel Hybrid Double-Y Balun,” in Microwaves and Optronics Conference (MIOP), 1997, pp. 417–421.


BibTeX

@inproceedings{miop4,
  author = {Trifunovic, V. and Jokanovic, B. and Marijanovic, M.},
  booktitle = {Microwaves and Optronics Conference (MIOP)},
  title = {Novel Hybrid Double-Y Balun},
  year = {1997},
  pages = {417-421},
  month = apr
}

V. Trifunovic and B. Jokanovic, “A New Uniplanar Double Balanced Mixer with High Port to Port Isolation,” in 1991 21st European Microwave Conference, 1991, vol. 2, pp. 1539–1543.
10.1109/EUMA.1991.336564

BibTeX Abstract

A design of new uniplanar double balanced mixer with a high port to port isolation is presented. Through the use of novel CPW-slot double junction balun, the need for via holes and back metalization has been eliminated. Hence, this mixer can be easily adapted to monolithic integrated circuits. The mixer realized has superior characteristics in comparison to other uniplanar mixers published up to now. An operating bandwidth, characterized by more than 1:6 frequency ratio has been achieved, at up to 10 GHz, with a conversion loss of 6.0 to 8.5 dB and LO/RF isolation greater then 30 dB.
```
@inproceedings{4136504,
  author = {Trifunovic, V. and Jokanovic, B.},
  booktitle = {1991 21st European Microwave Conference},
  title = {A New Uniplanar Double Balanced Mixer with High Port to Port Isolation},
  year = {1991},
  volume = {2},
  pages = {1539-1543},
  keywords = {Bandwidth;Coplanar waveguides;Diodes;Equivalent circuits;Impedance matching;Mixers;Radio frequency;Slotline;Waveguide junctions;Wires},
  doi = {10.1109/EUMA.1991.336564},
  month = sep
}
```

A. Nesic and B. Jokanovic, “A Miniature Surveillance Detector for the 8-40 GHz Frequency Range,” in Microwaves and Optronics Conference (MIOP), 1990.


BibTeX

@inproceedings{miop2,
  author = {Nesic, A. and Jokanovic, B.},
  booktitle = {Microwaves and Optronics Conference (MIOP)},
  title = {A Miniature Surveillance Detector for the 8-40 GHz Frequency Range},
  year = {1990}
}

B. Jokanovic and V. Trifunovic, “A Planar Double Balanced Mixer of the Star Configuration,” in Microwaves and Optronics Conference (MIOP), 1990.


BibTeX

@inproceedings{miop3,
  author = {Jokanovic, B. and Trifunovic, V.},
  booktitle = {Microwaves and Optronics Conference (MIOP)},
  title = {A Planar Double Balanced Mixer of the Star Configuration},
  year = {1990}
}

V. Napijalo and B. Jokanovic, “Automatized Measurement of Dielectric Constant of Microwave Substrates Using Automatic Network Analyzer,” in Microwaves and Optronics Conference (MIOP), 1989.


BibTeX

@inproceedings{miop1,
  author = {Napijalo, V. and Jokanovic, B.},
  booktitle = {Microwaves and Optronics Conference (MIOP)},
  title = {Automatized Measurement of Dielectric Constant of Microwave Substrates Using Automatic Network Analyzer},
  year = {1989}
}

A. Nesic, V. Trifunovic, and B. Jokanovic, “Highly Efficient Two-Dimensional Printed Antenna Array with a New Feeding Network,” in 1984 14th European Microwave Conference, 1984, pp. 697–701.
10.1109/EUMA.1984.333423

BibTeX Abstract

A printed broadside two-dimensional array of anti resonant dipoles at the frequency of 17 GHz with a gain of 28 dB is presented. A new concept of radiating elements and subarrays feeding is applied, thus providing high efficiency. The array is fed by tapered distribution in both planes, so that the side lobes suppression is better than 21.5 dB.
```
@inproceedings{4132113,
  author = {Nesic, A. and Trifunovic, V. and Jokanovic, B.},
  booktitle = {1984 14th European Microwave Conference},
  title = {Highly Efficient Two-Dimensional Printed Antenna Array with a New Feeding Network},
  year = {1984},
  pages = {697-701},
  keywords = {Antenna arrays;Antenna feeds;Dielectric substrates;Dipole antennas;Erbium;Frequency;Gain;Microstrip antennas;Passband;Power dividers},
  doi = {10.1109/EUMA.1984.333423},
  month = sep
}
```