The TBG-0580-3S-90 from Talent Microwave Inc is a 90 Degree Hybrid Coupler with Frequency 0.5 to 8 GHz, Average Power 20 W, Insertion Loss 1.6 to 2.2 dB, Isolation 16 to 18 dB, Coupling 3 dB. Tags: Module with Connectors. More details for TBG-0580-3S-90 can be seen below.