The MM-BHC-180400-90 from Mountain Microwave Technology is a 90 Degree Hybrid Coupler with Frequency 18 to 40 GHz, Average Power 50 W, Insertion Loss 1.9 dB, Isolation 15 dB, Coupling 3 dB. Tags: Module with Connectors. More details for MM-BHC-180400-90 can be seen below.