菲涅尔区板天线赋形波束的最优逼近

The Optimal Approximation for the Pattern Formed with Fresnel Zone Plate Antenna

从赋形波束最优逼近的观点入手,应用加权余量法和Prony法,研究基于直线阵列激励方式及其阵元空间分布的优化设计,从而实现菲涅尔区板天线辐射波束及焦区场分布的最佳数值逼近技术。所用方法适合于对各种菲涅尔区聚焦结构物理赋形波束的最优逼近,相关研究一方面对于设计高性能的直线阵列天线具有重要的参考价值,另一方面,对于进一步深入研究菲涅尔区聚焦结构的工作机理具有理论指导意义。

With the view of the optimal approximation for the formed beams, the radiation pattern and the field distribution in the focus zone of Fresnel zone plate antenna approximation with the fields of the linear array have been studied based on the methods of weighted residue and Prony,which suit for the approximation for the real patterns of various Fresnel zone focusing configuration. The work for the design of the linear array with high performance is crucial, as well as promotes the penetrating into the mechanic investigation of the Fresnel zone focusing configuration farther.