Analysis of shaped-differ impelled-pins in edge wall waveguide slot

This paper analyzes twelve different structures of impelled-pins that produce the fields and currents inside the waveguide wall and are pivotal structure to design. In detail shaped-differ comparisons of impelled-pins, the reasonable element construction is achieved firstly, provides the important factors which are the length and the lateral area of the pin, and obtains three significant rules. It also expounds the step optimizing parameters of impelled-pins in design for reference to antenna designers.