The AT-AM6-5590-12 from AT Microwave is a Frequency Multiplier with Input Frequency 9.17 to 15 GHz (Input), 55 to 90 GHz(Output), Output Frequency 55 to 90 GHz, Input Power 5 to 10 dBm, Output Power 12 dBm, Harmonics -15 dBc. Tags: Waveguide, Active, Waveguide Multiplier. More details for AT-AM6-5590-12 can be seen below.