A Ku Band High Power Rectangular Waveguide Directional Coupler's Design

This paper demonstrates an effective designing method of the waveguide directional coupler. The coupler designed using this method has wide band, high directivity, flat coupling, low voltage standing ratio and manufacturing accuracy. A Ku band high power waveguide directional coupler has been designed, the directivity is more than 28 dB and the coupling coefficient is 30dB with the deviation of 0.8 dB.