基于子阵划分的直线阵列天线综合  

Pattern synthesis of subarrayed linear array antenna

作　　者：郭华 岳镭辉 荆光瑞 崔琳[1] 张晓丹[1] GUO Hua;YUE Lei-hui;JING Guang-rui;CUI Lin;ZHANG Xiao-dan(School of Electronics and Information,Xi’an Polytechnic University,Xi’an 710048,China)

机构地区：[1]西安工程大学电子信息学院,陕西西安710048

出　　处：《电子设计工程》2020年第13期119-123,共5页Electronic Design Engineering

基　　金：国家自然科学基金青年科学基金项目(61901347)。

摘　　要：为了降低阵列天线的制造成本和馈电网络的设计难度,本文介绍了一种基于子阵划分的直线阵列天线综合方法。整个阵列天线被划分为多个子阵列,利用快速傅里叶变换(FFT)和聚类算法(CA)相结合的方法,优化每个子阵列的激励幅度和每个阵列单元的激励相位,从而获得最高旁瓣电平(PSLL)尽量低的辐射方向图。本文提出的方法能够快速实现阵列天线的子阵列划分,仿真结果表明,对于给定的直线阵列天线,能够获得较好的优化效果,辐射方向图的最高旁瓣电平均在-37 dB以下。In order to reduce the manufacturing cost and design difficulty of feed networks,a pattern synthesis method of subarrayed linear array antenna is introduced in this paper.The whole array antenna is divided into several subarrays.The excitation amplitude of each subarray and the excitation phase of each array element are optimized by the combination of fast Fourier Transform(FFT)and clustering algorithm(CA).The radiation pattern with low peak sidelobe level(PSLL)is obtained.The method introduced in this paper can realize the subarray partition of the linear array antenna quickly.For the giving linear array antenna,good optimization result is obtained.The PSLL of the radiation pattern is lower than-37 dB.

关 键 词：直线阵列天线 方向图综合 子阵 快速傅里叶变换 

分 类 号：TN9[电子电信—信息与通信工程]