The SOL-24311-42-G1 from ERAVANT is a Gunn Diode Oscillator with Frequency 23.125 to 25.125 GHz, Centre Frequency 24.125 GHz, Bandwidth ±500 to 1000 MHz, Output Power 0.01 to 0.012 W, Bias Current 250 mA. More details for SOL-24311-42-G1 can be seen below.