The CHCU803U820T90 from Cernex Inc is a 90 Degree Hybrid Coupler with Frequency 800 MHz to 3 GHz, Average Power 100 W, Insertion Loss 0.8 dB, Isolation 20 dB, Coupling 3 dB. Tags: Module with Connectors. More details for CHCU803U820T90 can be seen below.