The JDMH1020R from DFINE Technology is a 90 Degree Hybrid Coupler with Frequency 1 to 2 GHz, Insertion Loss 0.5 dB, Isolation 20 dB, Coupling 3 dB, Amplitude Balance ± 0.5 Degree. Tags: Module with Connectors. More details for JDMH1020R can be seen below.