Integrated Circuit of an Intelligent Reflecting Surface for sub-THz Wireless Communication

Next-generation networks demand efficient hardware solutions for wireless communication channels with carrier frequencies beyond 100 GHz. In particular, beamforming in reflected light is suggested to reduce signal attenuation due to blockages and to enhance overall quality of a wireless connection. This task can be solved with the aid of a network of intelligent reflecting surfaces placed in optical path between transmitter and receiver. In this work, we propose design of such a surface operated at 140 GHz which is fully compatible with clean room fabrication processes.