新型波导缝隙天线反射特性的研究

Reflection of a New Kind of Slots Antenna Fed by Waveguide

本文根据等效源原理分析了一种新型裂缝天线的反射特性，一个或两个横缝位于馈电矩形波导终端的短路面上。文章首先通过运用伽略金法求得缝口径面上的切向电场分布，并以此为源求出波导内的散射场，然后加上波导终端短路面的反射场，从而得到该天线的驻波比及其频率特性。分析中考虑了缝隙间的内部互耦和外部互耦。数值计算结果与实验结果吻合较好。

The reflecting properties of a new kind of two transvers slot antenna, which is lOCated on a panel connected with a rectangular feed waveguide are diatribed in this paper. Both external mutual coupling and internal mutual coupling of the two transverse slots, symmetrical or unsymmetrical, are included in two integral equations, whilethe two equations can be reduced to matrix form by using the method of moment. Numerical results show good agreement with the measurements.