The WMDC10-0.3-8-S-A3 from Werbel Microwave is a directional coupler that operates from 0.3 to 8 GHz. This 10 dB directional coupler has excellent VSWR, coupling flatness and high directionality. It is available in a module that measures 6.00 x 0.73 x 0.50 inches and may be fitted with an optional low-profile termination. The coupling value can be customized based on a customers requirement.