| 多约束直线阵列天线辐射散射特性优化 |
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| 引用本文： | 张帅,龚书喜,凌劲,路宝,龚琦.多约束直线阵列天线辐射散射特性优化[J].电波科学学报,2009,24(6). |
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| 作者姓名： | 张帅 龚书喜 凌劲 路宝 龚琦 |
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| 作者单位： | 西安电子科技大学天线与微波技术国家重点实验室,陕西,西安,710071 |
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| 摘 要： | 对于有口径、阵元数和最小阵元间距约束的直线阵列天线,运用改进的遗传算法通过调整单元的位置来同时优化其辐射和散射特性.并用矩量法验证了论文算例经优化后,完全计入互耦的辐射方向图峰值副瓣电平在-18.5 dB以下,且在绝大部分角域处于低散射状态,表明论文方法能指导兼顾辐射和散射特性的多约束阵列天线设计.
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| 关 键 词： | 遗传算法 矩量法 副瓣抑制 雷达散射截面减缩 |
Optimizing radiation and scattering characteristics of linear array with multiple constraints |
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| ZHANG Shuai,GONG Shu-xi,LING Jin,LU Bao,GONG Qi.Optimizing radiation and scattering characteristics of linear array with multiple constraints[J].Chinese Journal of Radio Science,2009,24(6). |
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| Authors: | ZHANG Shuai GONG Shu-xi LING Jin LU Bao GONG Qi |
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| Affiliation: | ZHANG Shuai GONG Shu-xi LING Jin LU Bao GONG Qi (National Key Lab. of Science , Technology on Antennas , Microwaves,Xidian University.,Xi'an Shaanxi 710071,China) |
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| Abstract: | Considering a linear array with the constraints of array aperture,the number of elements and minimum element spacing,an improved genetic algorithm (IGA) is presented and used for optimizing both the radiation and scattering characteristics of it by adjusting the element placement. Compared with the uniform array,the proposed method makes the nonuniform array produce lower peak side lobe level (PSLL) and be at the status that it scatters with low level for most incident angles. The simulated results validati... |
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| Keywords: | genetic algorithm method of moment(MoM) sidelobe suppression radar cross section reduction(RCSR) |
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