正交矩形波导馈电缝隙与辐射缝隙耦合特性分析

本文分析辐射波导与馈电波导正交结构的公共宽面中心馈电斜缝和辐射波导缝隙的耦合效应根据边界条件和等效原理积分方程，利用矩量法进行数值求解，给出计算例子，获得谐振长度和等效网络参量随频率，馈电缝隙倾角，辐射缝的位置和／或辐射波导终端负载的变化关系，并与弧立的馈电缝隙的结果进行对比，理论和实验结果吻合较好。

STUDIES OF COUPLING PROPERTIES OF FEEDING AND RADIATING SLOTS IN TWO CROSSED RECTANGULAR WAVEGUIDES

The coupling properties of longitudinal broad wall slots in radiating waveguide and a centered inclined broad wall feeding slot between two crossed rectangular waveguides are studied by using the method of moments from equivalent principle and several examples are given. Numerical results for resonant length and scattering parameters are shown over a range of titl angles, frequencies, waveguide dimensions,offsets of radiating slots with respect to the longitudinal axis and/or terminal loads ended in the radiating waveguide, and compared with the ones without radiating slots and terminal loads. The agreement between theory and experiment is seen to be good.