The CHC02120117T180 from Cernex Inc is a 180 Degree Hybrid Coupler with Frequency 2 to 12.4 GHz, Average Power 20 W, Coupling 3 dB, Insertion Loss 1.8 dB, Isolation 17 dB. Tags: Module with Connector. More details for CHC02120117T180 can be seen below.