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电子学报  2015 

基于机电耦合的有源相控阵天线辐射和散射特性综合优化

DOI: 10.3969/j.issn.0372-2112.2015.06.022, PP. 1185-1191

Keywords: 有源相控阵,机电耦合,雷达散射截面,辐射性能,单元位置,相位误差

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Abstract:

针对有源相控阵天线的雷达散射截面(RadarCrossSection,RCS)计算复杂、缩减困难,以及RCS与辐射性能难以兼顾问题,基于阵面结构变形与安装引起的辐射单元位置偏移分析,利用辐射单元相位误差,建立了有源相控阵天线阵列散射因子RCS的机电耦合模型.并基于该耦合模型,应用粒子群优化算法,优化阵面所有辐射单元的安装高度,以实现有源相控阵天线辐射性能和散射性能的全优.仿真结果表明,所建立的耦合模型及综合优化方法能够在保证有源相控阵天线辐射性能的条件下,有效缩减其RCS,具有重要的工程应用价值.

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