利用遗传算法的阵列馈电多波束反射面天线设计  

Design of array-fed multi-beam reflector antenna based on GA

作　　者：杨涛[1] 赵飞飞 鲁先龙 YANG Tao;ZHAO Feifei;LU Xianlong(No.38 Research Institute,China Electronics Technology Group Corporation,Hefei 230088,China)

机构地区：[1]中国电子科技集团公司第38研究所,合肥230088

出　　处：《空军预警学院学报》2021年第3期176-180,共5页Journal of Air Force Early Warning Academy

摘　　要：为有效降低卫星载荷的重量,同时保证卫星较高的通信容量,设计了阵列馈电单口径反射面多波束天线,利用262个馈源形成目标区域600个高增益点波束覆盖;提出了一种新的优化方法,即基于方向图特征提取的遗传算法.利用该方法,结合馈源复用技术,实现了600个点波束快速优化.仿真结果表明,采用本文方法能够有效降低单口面阵列馈电多波束天线方向图优化过程引入的人为误差,提高方向图优化效率.In order to effectively reduce the weight of satellite payload and ensure the high communication ca-pacity of satellite,an array-fed single aperture reflector multi-beam antenna is designed,which uses 262 feeds to form 600 high-gain spot beam coverage in the target area.The paper proposes a new optimization method,namely a genetic algorithm based on pattern feature extraction.This method is used,combined with feed multiplexing technology,to realize fast optimization of 600 spot beams.The simulation results show that the proposed method can effectively reduce the human error in the optimization process of an array-fed single aperture reflector multi-beam antenna,and improve the efficiency of pattern optimization.

关 键 词：反射面 多波束天线 遗传算法 多馈源 

分 类 号：TN957[电子电信—信号与信息处理]