Design of W-band SPDT switch by employing full-wave EM simulator

This paper presents the design and performance of a W-band single pole double throw (SPDT) switch. The beam lead PIN diodes are modeled using a full-wave electromagnetic (EM) simulator and connected in parallel with unilateral finline, by this approach, a 3 mm SPDT switch is designed. Our simulation results show that the switch has low insertion loss and high isolation in a wide bandwidth.