The QN180400 from Fujian MIcable is a 90 Degree Hybrid Coupler with Frequency 18 to 40 GHz, Average Power 20 W, Peak Power 3000 W, Insertion Loss 1.8 to 2 dB, Isolation 14 to 15 dB. Tags: Module with Connectors. More details for QN180400 can be seen below.