The AT-IQM-3350HL 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 22 to 25 dBm. Tags: IQ Mixer. More details for AT-IQM-3350HL can be seen below.