Quantic PMI Model P2T-500M18G-60-R-1W-SFF is a single pole, two throw, reflective switch operating over the frequency range of 0.5 to 18 GHz with a minimum isolation of 60 dB, a maximum insertion loss of 2.5 dB and features a 2 W peak power handling.  Housing size is 0.65" x 0.53" x 0.32" with removable SMA female connectors. https://www.quanticpmi.com/product-details/p2t-500m18g-60-r-1w-sff