The AT-SHM-200220 from AT Microwave is a Waveguide Mixer with RF Frequency 200 to 220 GHz, LO Frequency 100 to 110 GHz, IF Frequency DC to 20 GHz, Conversion Loss 12 to 15 dB, LO Drive Level 5 to 10 dBm. Tags: Sub-Harmonic Mixer. More details for AT-SHM-200220 can be seen below.