The FM2CP1135-20 from Fairview Microwave is a Directional Coupler with Frequency 18 to 50 GHz, Coupling 19 to 21.5 dB, Frequency Sensitivity ±0.7 to 1 dB, Directivity 8 to 10 dB, Average Power 20 W. Tags: Module with Connectors. More details for FM2CP1135-20 can be seen below.