The QHC8-18000-40000-20-K from Qualwave is a 180 Degree Hybrid Coupler with Frequency 18 to 40 GHz, Average Power 20 W, Amplitude Balance ±1.2 dB, Phase Balance ±12 Degrees, Insertion Loss 2.9 dB. Tags: Module with Connector. More details for QHC8-18000-40000-20-K can be seen below.