The 705S-3.900 from MECA is a 90 degree hybrid coupler that operates from 2.6 to 5.2 GHz. It has an isolation of over 20 dB and can handle an average input power of up to 50 watts (3K watts peak). The 3 dB coupler has a phase balance of 90 degrees. It is available in a module with N-type female connectors.
