Design of a Non-Reciprocal Reconfigurable Phase Shifter for Phased Array Applications

A novel non-reciprocal reconfigurable phased shifter feed network is proposed in this paper. The feed network is a one-input-four-output network for the steerable antenna application. The proposed novel concept has two main paths for transmitter and receiver in which each path has a different independent phase shifter. Varactor diodes with different bias voltages have been used in this study to generate different progressive phase shifts for transmitter and receiver. The measurement results show nonreciprocity results as well as reconfigurability for each output.