表面具有形变反射面天线方向图的计算  

Calculation of the Radiation Pattern of the Reflector Antenna with Distorted Reflector Surface

作　　者：李开拓[1] 于丁[1] 

机构地区：[1]西安电子科技大学天线与微波国家重点实验室,陕西西安710071

出　　处：《电子科技》2010年第9期38-40,共3页Electronic Science and Technology

摘　　要：大型反射面天线由于比较庞大、容易受外力的影响发生形变,因此计算表面具有形变反射面天线的方向图就变得尤为重要。反射面表面发生形变后,对辐射积分的处理会变得比较复杂,文中利用表面雅可比变换,对辐射积分进行处理,使得辐射积分的数学表示变得相对简单,将计算结果与GRASP仿真结果作了对比,结果基本一致,验证了方法的正确性。Because of their large size,large reflector antennas tend to be distorted under the influence of an external force,so calculation of the radiation pattern of the reflector antennas with distorted reflector surface is of importance.With distortion of the reflector surface,calculation of the radiation integral becomes complicated.This paper makes use of the surface projection Jacobian to deal with the radiation integral,thus simplifying its mathematic equation.Finally,a comparison of the computing result with the GRASP result is made,showing that the two results are identical.

关 键 词：反射面形变 方向图计算 雅可比变换 

分 类 号：TN820[电子电信—信息与通信工程]