The DQ-DJ-40180-180 from A-Info is a 180 Degree Hybrid Coupler with Frequency 4 to 18 GHz, Amplitude Balance ±0.70 dB, Phase Balance ±8.0 dB, Insertion Loss 2 dB, Isolation 15 dB. Tags: Module with Connector. More details for DQ-DJ-40180-180 can be seen below.