The SOM-65305218-15-S2 from ERAVANT is a Gunn Diode Oscillator with Frequency 64.25 to 64.75 GHz, Centre Frequency 64.5 GHz, Bandwidth ±250 MHz, Output Power 0.05 to 0.063 W, Bias Current 750 mA. More details for SOM-65305218-15-S2 can be seen below.