We are happy to anounce that we have obtained a grant for joint project “5G-MultiScan” with the group of prof. Thomas Zwick, Karlsruhe Institute of Technology, in the frame of bilateral cooperation between Serbia and Germany. Short description of the project is given below.
This project targets the bilateral collaboration and exchange of young researchers between two groups, one from the German Institute for High Frequency Technology and Electronics, Karlsruhe Institute of Technology (IHE KIT) and the other from the Serbian Institute of Physics, University of Belgrade (IPB). Both groups and the respective institutions are internationally recognized National leaders in their field of research. Within 5G-MultiScan, a collaboration based on complementarities will be established between the IHE KIT team having unique experimental skills and facilities in millimeter wave technology and the IPB team that is the regional leader in theoretical modeling and design of metamaterial based structures and antennas. IHE KIT and IPB work on similar topics within their national research projects. Next generation of mobile networks (5G) is expected to utilize higher mm-wave frequencies to achieve promised increase of data-rates and capacity. This poses significant challenges for future 5G systems due to higher propagation losses in mm-waves, especially in the case when there is no direct Line-of-Sight. Possible solution is to use MIMO beamforming gain to offset the losses, however it is unfeasible to scale existing MIMO digital beamforming due to power and cost limitations. Therefore, hybrid MIMO is proposed, where the beamforming processing is split over both analog and digital domains. Analog beamforming is equivalent to beam steering, so, in the frame of 5G, there is great interest in electronically scanned antennas. Standard phased antenna arrays are very complex and expensive due to the large number of ferrite or semiconductor phase shifters. The project goal is to devise an operating principle, the advanced methodology and tools for the efficient simulation and design of simple and low cost mm-wave multi-beam and scanning antennas using: (i) advanced printed antenna arrays, (ii) cheap metamaterial-based phase shifters, (iii) innovative dielectric lenses and (iv) passive multi-beam system architecture.