The ZHC8-2-18G-1326 from COM-MW is a 180 Degree Hybrid Coupler with Frequency 2 to 18 GHz, Average Power 30 W, Amplitude Balance ±0.8 dB, Phase Balance ±12 Degree, Insertion Loss 2.5 dB. Tags: Module with Connector. More details for ZHC8-2-18G-1326 can be seen below.