The RMHY3.3400Sf from Response Microwave Inc is a 90 Degree Hybrid Coupler with Frequency 1.7 to 3.4 GHz, Average Power 100 W, Insertion Loss 0.3 dB, Isolation 18 dB, Coupling 3 dB. Tags: Module with Connectors. More details for RMHY3.3400Sf can be seen below.