The AT-AM4-5075-18 from AT Microwave is a Frequency Multiplier with Output Frequency 50 to 75 GHz, Input Power 13 to 15 dBm, Output Power 15 to 18 dBm, Sub-Harmonic Suppression -15 dBc, Frequnecy 12.5 to 18.75 GHz. Tags: Waveguide, Module with Connectors, Waveguide Multiplier. More details for AT-AM4-5075-18 can be seen below.