The Series 131 from Flann is a range of multihole directional couplers that operate from 2.6 GHz to 140 GHz. They are available with coupling options from 3 dB to 30 dB with a coupling sensitivity less than 1.0 dB. They have a VSWR of 1.10:1 and high directivity of up to 40 dB. They are available in multiple waveguide sizes with SMA, Type N and K type connector options.
