The IPP-3206 from Innovative Power Products is a directional coupler that operates from 20 to 520 MHz. It has a coupling value of 40 dB and can handle up to 200 watts of power. The coupler has an insertion loss of less than 0.4 dB and directivity of more than 20 dB. It is available in a module that measures 1.16 x 1.76 inches with SMA female connectors.