The QS2-11-463/2S from Pulsar Microwave is a 90° Hybrid Coupler that operates from 12 to 18 GHz. This 3 dB coupler provides more than 15 dB of isolation and has an insertion loss of 0.8 dB. It has an amplitude balance of ±1.4 dB and a phase balance of ±8°. The coupler is available in a module that measures 1.00 x 0.50 x 0.38 inches and has SMA connectors.
