Model CS20-54-435/4 is an extremely broadband directional coupler from Pulsar Microwave that is ideal for measurement and electronic-warfare (EW) applications from 6 to 50 GHz. Over that frequency range, it features 20 dB coupling, with coupling flatness of 1 dB. The insertion loss is only 1.6 dB over the full bandwidth with directivity of better than 10 dB. The maximum VSWR is 2.0:1. The compact coupler measures 1.06 x 0.625 x 0.40 in. and is supplied with 2.4-mm connectors.