0.2～2.5 GHz改进型超宽带双脊喇叭天线的设计与实现  

0.2 to 2.5 GHz advanced ultra-broadband double ridged horn antenna design and implementation

作　　者：张丰 王敏[1] 于丽丽[2] 吴峻岩 Zhang Feng;Wang Min;Yu Lili;Wu Junyan(Air Force Early Warning Academy,Wuhan 430019,China;Beijing Institute of Technology,t~,eijing 100081,China)

机构地区：[1]空军预警学院,武汉430019 [2]北京理工大学,北京100081

出　　处：《电子测量技术》2018年第20期68-72,共5页Electronic Measurement Technology

摘　　要：同轴-双脊转换结构是超宽带双脊喇叭天线设计的重点,它不仅能影响天线的驻波特性,也会影响天线的辐射特性。设计了一款用于电磁兼容测试的0.2-2.5 GHz超宽带双脊喇叭天线,采用了新的同轴-脊波导转换结构,改善了天线的驻波特性和增益特性。采用HFSS软件对天线进行建模和仿真,仿真结果表明天线在0.2-2.5 GHz频带内具有良好的驻波,其值小于2.2,同时天线方向图在高频时未发生波瓣分裂,最后加工制作天线实物并对其参数进行测量,测试结果与仿真结果基本一致。The coaxial-double ridge conversion structure is the focus of the design of an ultra-wideband dual-ridge horn antenna. It can not only affect the standing wave characteristics of the antenna but also affect the radiation characteristics of the antenna. In this paper, a 0.2-2.5 GHz ultra-wideband dual-ridge horn antenna for electromagnetic compatibility testing is designed. A new coaxial-ridged waveguide conversion structure is adopted to improve the standing wave characteristics and gain characteristics of the antenna. Using HFSS software to model and simulate the antenna, the simulation results show that the antenna has a good standing wave in the frequency band of 0.2-2.5 GHz, and its value is less than 2.2. At the same time, the antenna pattern does not split at the high frequency and the final processing is made. The antenna is in kind and its parameters are measured. The test results are basically consistent with the simulation results.

关 键 词：电磁兼容 超宽带 双脊喇叭天线 同轴-脊波导转换 

分 类 号：TN822.8[电子电信—信息与通信工程]