一种宽频带自跟踪馈源的设计  

Design of a wideband auto-tracking feed

作　　者：耿京朝[1] 刘超[1] GENG Jingchao ,LIU Chao(The 54th Research Institute of CETC , Shijiazhuang 050081, Chin)

机构地区：[1]中国电子科技集团公司第五十四研究所,石家庄050081

出　　处：《电波科学学报》2018年第2期178-183,共6页Chinese Journal of Radio Science

摘　　要：针对一种高性能宽频带自跟踪馈源的使用需求,提出了由8路天线单元合成双圆极化和差波束的新型设计思路.介绍了这种天线实现圆极化和差波束的馈电原理,应用仿真软件Ansoft HFSS对8单元阵列进行了仿真设计,给出了仿真方向图,分析了8路馈电信号幅度和相位误差对设计的影响.结果表明,该馈源在一定幅度相位误差范围内,实现了1~12GHz频带范围内单脉冲跟踪,且具有良好的性能.To fulfill the demand of wideband high-performance auto-tracking feed,a feed made up of eight logic periodic monopole dual circular polarization beam antennas is designed.The design method and the feed theory are introduced.The feed is simulated by using the software of Ansoft HFSS and the simulation patterns are given.At last,the affections of amplitude and phase are analyzed.The simulation results indicate that the feed can form dual circular polarization beam at the frequency range from 1 to 12 GHz and has a good performance.

关 键 词：宽频带馈源 自跟踪馈源 双圆极化 对数周期 方向图 仿真模型 

分 类 号：TN820[电子电信—信息与通信工程]