费涅尔区板天线的设计及与馈源耦合问题的研究

Researches on Aperture Efficiency of Fresnel Zone Plate Antenna and Its Design

将区板焦区场作为散射问题处理，得到区板感应面电流分布和焦区场分布后，本文利用场相关定理研究区板与馈源的耦合问题，并就主模激励下开口圆波导情形进行了计算和讨论。文中还采用矢量场绕射分析模型进行区板设计。

Aperture efficiency of Fresnel zone plate antenna is investigated in this paper with the field correlation theorem. Results for the circular open waveguide with the dominant mode are discussed as an illustrative example, By using Kirchhoff's diffraction theorem, data for engineering design of Fresnel zone plate are given hereafter.