The DQ-DJ-580-180 from A-Info is a 180 Degree Hybrid Coupler with Frequency 500 MHz to 8 GHz, Amplitude Balance ±0.70 dB, Phase Balance ±8.0 dB, Insertion Loss 4 dB, Isolation 20 dB. Tags: Module with Connector. More details for DQ-DJ-580-180 can be seen below.