The 1575CH15A0030 from Johanson Technology is a 90 Degree Hybrid Coupler with Frequency 1.56 to 1.59 GHz, Average Power 3 W, Insertion Loss 3.3 dB, Isolation 16 dB, Amplitude Balance ±1 dB. Tags: Surface Mount. More details for 1575CH15A0030 can be seen below.