The PDC-192212-6-20W-SFF from Quantic PMI is a Directional Coupler that operates from 19.2 to 21.2 GHz. This 6 dB coupler has a directivity of more than 10 dB and has an insertion loss of less than 1.7 dB. It can handle an input power of up to 20 W and a reflected power of 1 W. The coupler is available in a module that measures 1.10 x 0.67 x 0.43 inches with 2.92 m (female) connectors.