The DQ-TJ-0054-180 from A-Info is a 180 Degree Hybrid Coupler with Frequency 5 to 400 MHz, Amplitude Balance ±0.4 dB, Phase Balance ±3.0 dB, Insertion Loss 1 to 1.5 dB, Isolation 30 dB. Tags: Module with Connector. More details for DQ-TJ-0054-180 can be seen below.