Quantic PMI Model P2T-1840-60-R-1W-292FF is a reflective single pole, two throw switch that operates from 18 to 40 GHz which handles 1 W CW power with a port-to-port isolation of 30 dB minimum and has low insertion loss while still offering fast switching speed. Housing size is 1.0" X 1.2" X 0.4" and uses 2.92mm connectors.