电抗加载天线阵的优化设计及性能分析  

Optimization Design and Performance Analysis of Reactance Loaded Antenna Arrays

作　　者：李戈阳[1] 

机构地区：[1]中国舰船研究设计中心,湖北武汉430064

出　　处：《中国舰船研究》2011年第2期65-68,92,共5页Chinese Journal of Ship Research

基　　金："十一五"预研基金资助项目

摘　　要：为优化均匀圆形天线阵的辐射性能,利用矩量法对电抗加载偶极子均匀圆阵的波束形成进行了可行性分析,并设计了粗选与微扰结合的电抗加载值序列优化计算方法,以满足指定方向上波束形成的需求。仿真结果表明,电抗加载天线阵波束形成方法能有效在期望方向上形成具有较高增益与前后比的波束,且对阵半径与电抗加载值的误差具有一定的容错能力。该分析方法与计算结果对电抗加载天线阵的设计与实际工程应用具有一定的指导意义。To optimize the radiation performance of circular antenna array,Method of Moments（MoM） was applied to analyze the feasibility of achieving beam forming by reactance loaded circular antenna array,which is consisted of symmetrically displaced dipole antennas.Then,coarse and turbulence combination searching algorithm for reactance loading sequence is proposed for beam forming in specified direction.The simulation results show that beams of relatively high gain and fore-rear ratio can be formed on required directions,and the errors of array radius and loaded reactance can be tolerated to a certain extent.The analysis methods and computational results are of certain significance to the design and practical engineering application of reactance loaded antenna array.

关 键 词：电抗加载 偶极子 波束形成 增益 前后比 

分 类 号：U665.26[交通运输工程—船舶及航道工程]