The HP-26D5G-40G-CD-292FF from Quantic PMI is a Suspended Substrate High-Pass Filter with a passband from 26.5 to 40 GHz. It has a passband insertion loss of less than 2 dB and provides a rejection of 54 dBc @20 GHz. This filter is available in a module that measures 0.65 x 0.65 x 0.50 inches and has 2.92 mm (female) connectors.