The MM-BDC-010500-20 from Mountain Microwave Technology is a Directional Coupler with Frequency 1 to 50 GHz, Coupling 20 dB, Coupling Variation ±2.2 dB, Directivity 8 dB, Average Power 50 W. Tags: Module with Connectors. More details for MM-BDC-010500-20 can be seen below.