The WMDC20-0.3-8-S-A3 from Werbel Microwave is a directional coupler that operates from 300 MHz to 8 GHz. This 20 dB coupler has a directivity of more than 18 dB and an insertion loss of under 1.1 dB. It can handle up to 20 watts of power and has a VSWR of 1.30:1. The coupler is available in a module that measures 6 x 0.73 x 0.5 inches with SMA female connectors and may be fitted with an optional low-profile termination.
