现代电子技术2025，Vol.48Issue(7)：11-15,5.DOI:10.16652/j.issn.1004-373x.2025.07.002
基于分布式共形阵列天线的和、差波束综合方法研究
Research on sum and difference beam synthesis method based on distributed conformal antenna arrays
摘要
Abstract
The distributed conformal antenna arrays can make full use of the effective aperture area of the carrier shape.Relying on the distributed conformal antenna arrays,the sum and difference beams can be realized,which has high application value in unmanned airborne radar navigation,target tracking and other aspects.Firstly,the element pattern obtained under the local coordinate system using electromagnetic full wave analysis is rotationally transformed to the global coordinate system,and the total field of the far area of the arrays is obtained by vector superposition based on the element pattern.Further,the weight of the excitation signal of each element is used as an optimization variable,and a genetic algorithm(GA)is used for amplitude weighting optimization,so as to achieve the low sidelobe synthesis of the sum and difference beams.By constructing 4×4×4 multiplane combined distributed conformal antenna arrays for experimental simulation,it is verified that the GA is effective in improving the low sidelobe level performance of sum and difference beams of this type of antenna arrays.At the same time,the electromagnetic full-wave analysis proves that it is feasible to superimpose the total field of the array with the antenna element pattern,which makes the selection of antenna elements more diversified and can better meet the application requirements of unmanned airborne radar.关键词
分布式共形阵列天线/遗传算法/和、差波束/电磁全波分析/方向图计算/矢量叠加Key words
distributed conformal antenna arrays/GA/sum and difference beam/electromagnetic full wave analysis/pattern calculation/vector superposition分类
信息技术与安全科学引用本文复制引用
李发政,孙兆阳,纪永刚,周航,李凉海,王筝..基于分布式共形阵列天线的和、差波束综合方法研究[J].现代电子技术,2025,48(7):11-15,5.基金项目
2022年太赫兹无损检测技术开发及应用项目 （）
