The 1139-6022 from SV Microwave is a 1.0 mm Male to Male Adapter that operates from DC to 110 GHz. It has an insertion loss of less than of 0.75 dB and a maximum VSWR of 1.5:1. This 50-ohm adapter is available in a stainless-steel package that measures 5.99 x 12.63 mm with Beryllium Copper contacts and threaded coupling.