Power Scalability Modeling of Reconfigurable Intelligent Surfaces for THz Applications

In this paper, an attempt is made to model the total power requirements of a full scale Reflective Intelligent Surface (RIS) with switches(microfluidics based and CMOS based) operating at 140 GHz frequencies. First, we modeled the static powers associated with FPGA boards and its control boards of RIS and then estimated the dynamic power requirements associated with RIS based on different unit cell elements configurations and then the combined total power values for various configurations with 1-bit, 2-bit, and 3-bit (binary switching states) are presented.