The HMC6146B from Analog Devices is a RF Mixer with RF Frequency 40 to 44 GHz, LO Frequency 18 to 22 GHz, IF Frequency 0 to 4 GHz, Conversion Gain 7 to 12 dB, LO Drive - Power 0 to 5 dBm. Tags: Surface Mount, I/Q Mixer, Up-Conversion Mixer. More details for HMC6146B can be seen below.