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应用遗传算法的电大尺寸载体附近天线阵方向图综合

Synthesis of Radiation Pattern Using Genetic Algorithm for Antenna Array near Electrically Large Platform
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摘要 采用矩量法结合一致性几何绕射理论分析电大尺寸载体附近天线阵列的辐射方向图,并使用遗传算法对阵列的方向图进行综合。以有限长圆柱导体附近由半波振了组成的十元天线阵为例,用这种方法对阵元馈电电压的幅度和相位进行优化,得到了预期的方向图。与单纯的低频或者高频算法相比,该算法具有计算速度快、精确度高、优化效果好的特点。 A hybrid technique that combines the moment methods （MoM） with the uniform geometrical theory of diffraction （UTD） is presented. The method can accurately and efficiently compute the radiation pattern of an antenna array located near an electrically large platform. An optimization process based on the genetic algorithm （GA） is used to produce a desired radiation pattern. Usefulness of the proposed technique is shown by an example of a ten-element half-wavelength dipole array placed close to a finite-length PEC circular cylinder. Amplitude and phase of the element excited voltage are optimized using the method. Compared to other methods, the optimization technique based on GA and MoM-UTD is effective and accurate, and has high performance.
作者 张凯 陈晨 郭陈江 许家栋
机构地区 西北工业大学电子信息学院
出处 《应用科学学报》 CAS CSCD 北大核心 2009年第4期381-386,共6页 Journal of Applied Sciences
基金 陕西省自然科学基础研究计划基金(No.2006F15)资助项目
关键词 矩量法 一致性几何绕射理论 遗传算法 方向图综合 moment methods, uniform geometrical theory of diffraction, genetic algorithm, pattern synthesis
分类号 TN82 [电子电信—信息与通信工程]
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参考文献10

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二级参考文献14

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应用科学学报
2009年 第4期

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