The HMC977LP4E from Analog Devices is a RF Mixer with RF Frequency 20 to 28 GHz, LO Frequency 11.5 to 15.7 GHz, IF Frequency DC to 3.5 GHz, Image Rejection 21 dB, Conversion Gain 14 dB. Tags: Surface Mount, I/Q Mixer, Down-Conversion Mixer. More details for HMC977LP4E can be seen below.