The IPP-3238 from Innovative Power Products is a Directional Coupler that operates from 2 to 8 GHz. This 40 dB coupler has a directivity of more than 17 dB and an insertion loss of less than 0.3 dB. It can handle an input power of up to 600 W and has a main line VSWR of less than 1.35:1. The coupler is available in a module that measures 4.13 x 1.30 x 1.30 inches with SMA-female and N-type (female) connectors.