An ultra wideband 0.04 to 40 GHz PIN diode transfer switch

0.04 to 40 GHz silicon PIN diode transfer switch has been demonstrated. The transfer switch included a PIN diode switch network and an output divider network. An insertion loss of about 12 dB at 40 GHz was achieved, and a minimum isolation of 90 dB was obtained over the entire frequency range. Computer modeling results were also presented.