The DBHB9004001800A from Qotana is a 90 Degree Hybrid Coupler with Frequency 4 to 18 GHz, Average Power 50 W, Peak Power 0.3 kW, Insertion Loss 0.5 to 1 dB, Isolation 16 to 18 dB. Tags: Module with Connectors. More details for DBHB9004001800A can be seen below.