Mi-Wave’s 561 Series Broadband Directional Couplers are broadwall mulit-hole energy-coupling devices. The 561 Series devices are available in various waveguide sizes ranging in frequency from 18.0 to 500 GHz.Nominal couplings of 3, 6, 10, 20, 30, 40and 50 dB are offered to complement specific test set requirements.

The 561 Series Directional Couplers provide an efficient and convenient means for sampling a finite quantity of power flowing in a transmission line or for injecting a desired signal into the line