The WR12SHM from Virginia Diodes, Inc. is a Waveguide Mixer with RF Frequency 60 to 90 GHz, LO Frequency 30 to 45 GHz, IF Frequency 12 GHz, Conversion Loss 7 dB, LO Drive Level 3 to 6 dBm. Tags: Sub-Harmonic Mixer. More details for WR12SHM can be seen below.