The ZHC13-18-40G-1263 from COM-MW is a 90 Degree Hybrid Coupler with Frequency 18 to 40 GHz, Average Power 10 W, Insertion Loss 2.4 to 3 dB, Isolation 14 dB, Amplitude Balance ± 0.9 dB. Tags: Module with Connectors. More details for ZHC13-18-40G-1263 can be seen below.