轻量化镂空双脊喇叭天线设计  

Design of Lightweight Hollow Double Ridge Horn Antenna

作　　者：王宇彤 邵峰 孟天旭 张明怡 Wang Yutong;Shao Feng;Meng Tianxu;Zhang Mingyi(Hebei Key Laboratory of Electromagnetic Environmental Effects and Information Processing,Hebei,Shijiazhuang 050043,China;Broad Device Unite,Shanghai Nokia Bell Software Co.,Ltd.,Shanghai 2012062,China;Engineering Research Center of Railway Industry on Electromagnetic Environment Effects and Electromagnetic Safety,CRSC Research and Design Institute Group Company Ltd.,Beijing 100070,China;Basic Technology Research Institute,CRSC Research and Design Institute Group Company Ltd.,Beijing 100070,China)

机构地区：[1]河北省电磁环境效应与信息处理重点实验室,河北石家庄050043 [2]上海诺基亚贝尔软件有限公司宽带设计部,上海2012062 [3]北京全路通信信号研究设计院集团有限公司电磁环境效应及电磁安全铁路行业工程研究中心,北京100070 [4]北京全路通信信号研究设计院集团有限公司基础技术研究院,北京100070

出　　处：《铁道技术标准（中英文）》2024年第10期25-31,共7页Railway Technical Standard(Chinese & English)

摘　　要：传统金属喇叭自身重量较重,限制其在基于无人机电磁测量中的应用。本文设计一款轻量化镂空双脊喇叭天线。通过仿真分析镂空结构对天线性能影响,镂空处理掉双脊结构中表面电流不敏感部分降低天线重量,确定镂空结构。采用3D打印方式进行加工进一步在整体上减轻天线重量。对天线样机展开测试,测试结果表明在0.95~8.05 GHz的测试带宽内(1:8.47)天线驻波比(VSWR)<2,增益范围为6.11~14.32 dBi,天线重量仅为293 g,与传统金属天线相比,其重量减轻78%。天线测试结果与仿真结果相吻合,最终本文所设计天线在保持天线宽频特性以及增益性能的基础上有效降低天线重量,可应用于基于无人机的电磁测量系统。The traditional metal horn is heavy in weight,which limits its application in UAV-based electromagnetic measurement.To solve this problem,this paper designs a lightweight hollow double-ridge horn antenna.The influence of the hollow structure on the performance of the antenna is analyzed by simulation,and the part of the surface current insensitive in the double ridge structure is removed by hollow to reduce the weight of the antenna,and the hollow structure is determined.The 3D printing method is used to further reduce the weight of the antenna as a whole.The test results show that the antenna standing wave ratio(VSWR)is less than 2 in the test bandwidth of 0.95 to 8.05 GHz(1:8.47),the gain range is 6.11 to 14.32 dBi,and the weight of the antenna is only 293 g,which is 78%less than that of the traditional metal antenna.The measurement results are consistent with the simulation results.Finally,the designed antenna can effectively reduce the weight of the antenna while maintaining the broadband characteristics and gain performance of the antenna,and can be applied to the UAV-based electromagnetic measurement system.

关 键 词：3D打印 双脊喇叭天线 轻量化 增益 

分 类 号：TP319[自动化与计算机技术—计算机软件与理论]