The MM-BHC-100400-90 from Mountain Microwave Technology is a 90 Degree Hybrid Coupler with Frequency 10 to 40 GHz, Average Power 20 W, Insertion Loss 2.2 dB, Isolation 12 dB, Coupling 3 dB. Tags: Module with Connectors. More details for MM-BHC-100400-90 can be seen below.