The QH-36 from Cobham Signal & Control Solutions is a 90 Degree Hybrid Coupler with Frequency 2 to 4 GHz, Insertion Loss 0.2 dB, Isolation 22 dB, Coupling 3 dB, Coupling Variation ±.45 dB. Tags: Module with Connectors. More details for QH-36 can be seen below.