结构变形对相控阵天线电性能的影响分析  

Analysis of electrical performances of phased array antennas with structural deformations

作　　者：王从思[1] 康明魁[1] 王伟[1] 普涛[1] 

机构地区：[1]西安电子科技大学电子装备结构设计教育部重点实验室,陕西西安710071

出　　处：《系统工程与电子技术》2013年第8期1644-1649,共6页Systems Engineering and Electronics

基　　金：国家自然科学基金(50805111;51035006;51205301);新世纪优秀人才支持计划(NCET-09-0633);高等学校博士学科点专项科研基金(20120203110012);中央高校基本科研业务费专项资金(K50510040001;K50510040008;72103389)资助课题

摘　　要：分析阵面变形误差对有源相控阵天线(active phased array antenna,APAA)电性能的影响,对研究和发展高性能APAA非常重要。将阵面随机误差和阵面变形作为附加的相位因子引入到天线方向图函数中,建立了平面矩形APAA的阵面变形误差与电性能之间的结构-电磁耦合模型,并仿真分析了阵面存在变形误差时的天线远场方向图。通过所提方法与结论,工程设计人员可对加工公差提出更合理的要求。The analysis of the influence of the distorted plane on the electromagnetic performance of the active phased array antenna （APAA） is of great significance to the research and development of the high-performance APAA. By introducing the plane random errors and deformations into the antenna pattern function as an additional phase factor, the coupled structuralelectromagnetic model is established of the relationship between the distorted plane and the electromagnetic performance of the planar rectangular APAA. The far field pattern of antenna with the deformation of array plane is studied by simulation. By the proposed method and conclusion, the antenna designers may set reasonable requirement on the tolerance in manufacturing antenna.

关 键 词：有源相控阵天线 变形误差 电性能 耦合分析 

分 类 号：TN821.8[电子电信—信息与通信工程]