The WR1.2SHM from Virginia Diodes, Inc. is a Waveguide Mixer with RF Frequency 600 to 900 GHz, LO Frequency 300 to 450 GHz, IF Frequency 40 GHz, Conversion Loss 15 dB, LO Drive Level 4 to 8 dBm. Tags: Sub-Harmonic Mixer. More details for WR1.2SHM can be seen below.