The WHC1920A from Wavelex is a 90 Degree Hybrid Coupler with Frequency 1.93 to 1.98 GHz, Average Power 10 W, Insertion Loss 0.25 to 0.5 dB, Isolation 23 dB, Amplitude Balance ± 1 dB. Tags: Module with Connectors. More details for WHC1920A can be seen below.