The HMC8191LC4 from Analog Devices is a RF Mixer with RF Frequency 6 to 26.5 GHz, LO Frequency 6 to 26.5 GHz, IF Frequency DC to 5 GHz, Image Rejection 20 to 25 dB, Conversion Loss 9 to 11.5 dB. Tags: Surface Mount, I/Q Mixer, Passive Mixer. More details for HMC8191LC4 can be seen below.