The MM-BHC-265400-90 from Mountain Microwave Technology is a 90 Degree Hybrid Coupler with Frequency 26.5 to 40 GHz, Average Power 20 W, Insertion Loss 1.7 dB, Isolation 15 dB, Coupling 3 dB. Tags: Module with Connectors. More details for MM-BHC-265400-90 can be seen below.