The DBHB1802000400A from Qotana is a 180 Degree Hybrid Coupler with Frequency 2 to 4 GHz, Average Power 50 W, Peak Power 1 kW, Coupling 3 dB, Amplitude Balance ±0.3 to 0.5 dB. Tags: Module with Connector. More details for DBHB1802000400A can be seen below.