The Directional Couplers from Penn’s Engineering operate from 1.12 GHz to 50 GHz. They are available with coupling options from 3 dB to 40 dB, have a VSWR of 1.05:1 and directivity of up to 40 dB. The couplers are available in multiple waveguide sizes. They are ideal for measuring the microwave energy traveling through a waveguide system.