The IPP-8001 from Innovative Power Products is a Bi-Directional Coupler that operates from 2500 to 6000 MHz. It has a coupling factor of 20 dB (± 1 dB), a directivity of more than 20 dB and an insertion loss of less than 0.25 dB. The coupler can handle an input power of 100 W and has a main line VSWR of less than 1.30:1. It is available in a surface-mount package that measures 0.35 x 0.56 in.