| 非周期阵列天线辐射性能的研究 |
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| 引用本文： | 张宙,杜彪,韩国栋.非周期阵列天线辐射性能的研究[J].现代雷达,2013,35(3):50-54. |
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| 作者姓名： | 张宙 杜彪 韩国栋 |
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| 作者单位： | 中国电子科技集团公司第五十四研究所,石家庄,050081 |
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| 摘 要： | 针对非周期大间距矩形阵列,运用遗传算法对其进行优化布阵和幅度加权,得到各阵元最佳的位置和幅度分布,使得阵列扫描范围内的副瓣电平最低。研究了阵元间距、阵列扫描范围、单元天线波束宽度等3种因素对阵列副瓣电平和增益的影响,得到了各因素对阵列辐射性能影响的规律。通过遗传算法优化得到了扫描范围内副瓣电平最低时的阵元间距,可用于指导工程设计。
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| 关 键 词： | 非周期阵列 大间距 副瓣电平 阵元间距 扫描范围 单元天线波束宽度 |
A Study on Radiation Performance of Aperiodic Array Antenna |
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| ZHANG Zhou,DU Biao and HAN Guodong.A Study on Radiation Performance of Aperiodic Array Antenna[J].Modern Radar,2013,35(3):50-54. |
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| Authors: | ZHANG Zhou DU Biao and HAN Guodong |
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| Affiliation: | (The 54th Research Institute of CETC,Shijiazhuang 050081,China) |
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| Abstract: | The genetic algorithm(GA) is used for optimal analysis on the element position and current amplitude of aperiodic array
with elements arranging in large space, and the optimal parameters are achieved, which make the side lobe level minimum in the
scanned area. The effect of element spacing, scanned area and element beam-width on side lobe level and gain of aperiodic array
antenna is discussed, and the effects of these factors on radiation performance are given. The element spacings when side lobe level
in the scanned area is minimum are acquired by GA optimization, that is used to guide the design. |
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| Keywords: | aperiodic array large space of elements side lobe level element spacing scanned area element beam-width |
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