Analysis and design of rectangular waveguide to substrate integrated waveguide transition with voltage and current probe in W-band

Abstract

A single-layer broadband transition between air-filled rectangular waveguide (ARW) and substrate integrated waveguide (SIW) operating in W band is proposed. Voltage and current probes are employed to implement the transition. A back-to-back prototype of the proposed transition is designed, fabricated , and measured. Good agreement of the simulated and measured results are obtained. From 80.2 to 98.1 GHz, the measured results show that the insertion loss (IL) is less than 1 dB and the return loss (RL) is better than 10dB.