The WR2.8x2 from Virginia Diodes, Inc. is a Frequency Multiplier with Input Frequency 130 to 200 GHz, Output Frequency 260 to 400 GHz, Input Power 10 to 15.44 dBm, Harmonics -20 dBc, Frequnecy 130 to 200 GHz. Tags: Module with Connectors, Waveguide, Waveguide Multiplier. More details for WR2.8x2 can be seen below.