The CHR2299-99F from United Monolithic Semiconductors is a RF Mixer with RF Frequency 40.00-44.00 GHz, LO Frequency 9.5-11.5 GHz, IF Frequency DC-2.0 GHz, Conversion Loss 21 dB, LO Drive - Power 0 dBm. Tags: Down-Conversion Mixer. More details for CHR2299-99F can be seen below.