The AT-AM4-4575-18TY from AT Microwave is a Frequency Multiplier with Input Frequency 11.25 to 18.75 GHz (Input), 45 to 75 GHz(Output), Output Frequency 45 to 75 GHz, Input Power 10 to 13 dBm, Output Power 15 to 18 dBm, Harmonics -25 dBc. Tags: Waveguide, Active, Waveguide Multiplier. More details for AT-AM4-4575-18TY can be seen below.