A Low-Loss, Wideband, 0-110 GHz SPDT Using PCM RF Switches with Integrated CMOS Drivers

A SPDT switch circuit using PCM RF switches was fabricated, bumped, and mounted to an evaluation board before tested across two frequency ranges (0-67 GHz and 0-110 GHz). The PCM RF switches were actuated using integrated CMOS drivers available in the base process, which is a combination of a RFSOI CMOS with the monolithic integration of PCM RF switches. Using a thru to de-embed evaluation board losses, the SPDT measured less than 1.0 dB of insertion loss with more than 35 dB of isolation from 0-67 GHz, and less than 2.5 dB of insertion loss with more than 20 dB of isolation from 0-110 GHz (which includes the bump transition losses). The SPDT had a measured power handling of 29 dBm and IP2/IP3 of 132/63 dBm, respectively, as measured through the evaluation board. The PCM RF switches are functional to DC, making it a true wideband DC-110+ GHz switch technology