Study of interconnecting switch currents in reconfigurable parasitic layer antennas

This work presents an approach for calculating the currents across the switches of a reconfigurable parasitic layer intended to add beam-steering capabilities to a reference antenna. The method of analysis is based on the port loading technique in which only one Full-Wave Electromagnetic (FWEM) simulation is required to evaluate the behavior of the reference antenna and its interaction with the reconfigurable layer across all its states. Results show that the currents on the switches are at least one order of magnitude lower than the currents on the feed port of the driven radiator, proving the effectiveness of the reconfigurable parasitic layer approach in implementing Reconfigurable Antenna (RA).