The AT-IQM-3350H from AT Microwave is a Waveguide Mixer with RF Frequency 33 to 50 GHz, LO Frequency 33 to 50 GHz, IF Frequency DC to 20 GHz, Conversion Loss 10 to 13 dB, LO Drive Level 15 to 21 dBm. Tags: IQ Mixer, Down Converter Mixer, Up Converter Mixer. More details for AT-IQM-3350H can be seen below.