BEYOND 5G (B5G) TECHNOLOGY
Massive MIMO antennas (i.e. large antenna arrays) are a major technology enabler for 5G communications. For beyond 5G communications, it is expected that these antennas are made more and more massive, i.e. contain larger antenna elements than those of 5G, to generate sharper beams and provide higher spatial diversity or larger spatial multiplexing channels than 5G. However, a big impediment to achieve this is the phenomenon of mutual coupling between the antenna elements which becomes significant if the antennas are kept closer than half wavelengths to each other. The mutual coupling may heavily distort a radiation pattern and severely curb the ability of spatial diversity and multiplexing. One of our researches is the invention of a real time radiation pattern corrector that can remove the effect of mutual coupling from the radiation patterns. So, with the help of such a corrector super massive MIMOs may be created within the physical space limitations of massive MIMOs.
Pragnan Chakravorty and Durbadal Mandal, “Radiation Pattern Correction in Mutually Coupled Antenna Arrays Using Parametric Assimilation Technique”, IEEE Transactions on Antennas and Propagation, vol. 64, no. 9, pp. 4092-4095, IEEE, 2016. (IF: 4.371, SCI) (URL: http://dx.doi.org/10.1109/TAP.2016.2578307)