The JDMH1020S from DFINE Technology is a 180 Degree Hybrid Coupler with Frequency 1 to 2 GHz, Coupling 3 dB, Amplitude Balance ±0.5 dB, Phase Balance ±5 Degree, Insertion Loss 0.5 dB. Tags: Module with Connector. More details for JDMH1020S can be seen below.