The AT-PM3-6090M from AT Microwave is a Frequency Multiplier with Input Frequency 20 to 30 GHz (Input), 60 to 90 GHz(Output), Output Frequency 60 to 90 GHz, Input Power 17 to 20 dBm, Harmonics -15 dBc, Conversion Loss 20 to 25 dB. Tags: Waveguide, Passive, Waveguide Multiplier. More details for AT-PM3-6090M can be seen below.