The JDMH4080R from DFINE Technology is a 90 Degree Hybrid Coupler with Frequency 4 to 8 GHz, Insertion Loss 0.6 dB, Isolation 18 dB, Coupling 3 dB, Amplitude Balance ± 0.6 Degree. Tags: Module with Connectors. More details for JDMH4080R can be seen below.