The JDMH0815S from DFINE Technology is a 180 Degree Hybrid Coupler with Frequency 800 MHz to 1.5 GHz, Coupling 3 dB, Amplitude Balance ±0.6 dB, Phase Balance ±6 Degree, Insertion Loss 0.6 dB. Tags: Module with Connector. More details for JDMH0815S can be seen below.