QUANTIC PMI Model No. P2T-218-60-515-R-SFF is a 2.0 to 18.0 GHz Single Pole, Two Throw, Reflective Switch having a 60 dB minimum isolation and a 1.8 dB maximum insertion loss. Also, it has a maximum switching speed of 30 ns and a maximum VSWR of 1.9:1. This Switch has SMA male connectors and a size of 0.69" x 0.53" x 0.35".  https://www.pmi-rf.com/product-details/p2t-218-60-515-r-sff