The BW1702/1703 from Sainty-Tech Communications Limited is a 90 Degree Hybrid Coupler with Frequency 1.2 to 1.4 GHz, Average Power 50 W, Insertion Loss 0.1 dB, Isolation 45 dB, Coupling 24 to 26 dB. Tags: Die. More details for BW1702/1703 can be seen below.