The HC90-177202SF from Corech Microwave is a 90 Degree Hybrid Coupler with Frequency 17.7 to 20.2 GHz, Average Power 20 W, Peak Power 0.3 kW, Insertion Loss 1.2 dB, Isolation 16 dB. Tags: Module with Connectors. More details for HC90-177202SF can be seen below.