The 780-30-15.200 from MECA operates from 12.4 to 18 GHz. This coupler have a coupling value of 30 dB and can handle up to 50 watts of power. The coupler have an insertion loss of 0.5 dB and directivity of 15 dB. It is available in a module with SMA female connectors and are ideal for space restricted applications.
