The FM2CP1126-20 from Fairview Microwave is a Directional Coupler with Frequency 18 to 40 GHz, Coupling 19 to 21 dB, Frequency Sensitivity ±0.7 to 1 dB, Directivity 12 to 14 dB, Average Power 30 W. Tags: Module with Connectors. More details for FM2CP1126-20 can be seen below.