The SFH-28SFSF-A3-2 from ERAVANT is a Waveguide Mixer with RF Frequency 26.5 to 40 GHz, LO Frequency 6 to 12 GHz, IF Frequency DC to 1.6 GHz, Conversion Loss 20 dB, LO Drive Level 16 to 19 dBm. Tags: Harmonic Mixer, Balanced Mixer. More details for SFH-28SFSF-A3-2 can be seen below.