The WR4.3x3 from Virginia Diodes, Inc. is a Frequency Multiplier with Input Frequency 56.7 to 86.7 GHz, Output Frequency 170 to 260 GHz, Input Power 10 to 120 mW, (20.8 dBm), Harmonics -20 dBc, Frequnecy 56.7 to 86.7 GHz. Tags: Waveguide, Waveguide Multiplier. More details for WR4.3x3 can be seen below.