The HMC203 from Analog Devices is a RF Mixer with RF Frequency 14 to 23 GHz, LO Frequency 15 to 21 GHz, IF Frequency DC to 2 GHz, Conversion Loss 10.5 dB, LO Drive - Power 15 dBm. Tags: Die, Double Balanced Mixer. More details for HMC203 can be seen below.