The THZSHM-04 from VivaTech is a Waveguide Mixer with RF Frequency 170 to 260 GHz, LO Frequency 85 to 130 GHz, IF Frequency 0.1 to 20 GHz, Conversion Loss 10 dB, LO Drive Level 10 to 13 dBm. Tags: Sub-Harmonic Mixer. More details for THZSHM-04 can be seen below.