The HMC337 from Analog Devices is a RF Mixer with RF Frequency 17 to 25 GHz, LO Frequency 8.5 to 12.5 GHz, IF Frequency DC to 3 GHz, Conversion Loss 9 to 13 dB, LO Drive - Power -5 dBm. Tags: Die, Sub-Harmonic Mixer. More details for HMC337 can be seen below.