The WR5.1x3 from Virginia Diodes, Inc. is a Frequency Multiplier with Input Frequency 46.7 to 73.3 GHz, Output Frequency 140 to 220 GHz, Input Power 10 to 120 mW, (20.8 dBm), Harmonics -20 dBc, Frequnecy 46.7 to 73.3 GHz. Tags: Waveguide, Waveguide Multiplier. More details for WR5.1x3 can be seen below.