The HMC571 from Analog Devices is a RF Mixer with RF Frequency 21 to 25 GHz, LO Frequency 9 to 14 GHz, IF Frequency DC to 3.5 GHz, Image Rejection 24 dB, Conversion Gain 11 dB. Tags: Surface Mount, I/Q Mixer, Down-Conversion Mixer. More details for HMC571 can be seen below.