Principle and design for waveguide directional coupler

The principles for designing waveguide directional coupler and waveguide power-divider are systematically presented in the paper. At brief and practical method for designing these components are described in detail. A once the bandwidth paramenter is choosen, the relative coupling factor is determined. If the total coupling factor is given, then the diameters of the coupling holes, the most important ones in the designing parameters are calculated by means of the calculator 58 C through 58 C-84 A programm