采用阻抗变换的宽带套筒天线  

Wideband Sleeve Antenna with Impedance Transformation

作　　者：王慧[1] 曹力 俞钰峰 WANG Hui;CAO Li;YU Yu-feng(No.36 Research Institute of CETC,Jiaxing Zhejiang 314033,China;CETC International Co Ltd,Beijing 100120,China;Hangzhou Dianzi University,Hangzhou Zhejiang 310018,China)

机构地区：[1]中国电子科技集团公司第三十六研究所,浙江嘉兴314033 [2]中电科技国际贸易有限公司,北京100120 [3]杭州电子科技大学,浙江杭州310018

出　　处：《通信对抗》2023年第1期49-52,共4页Communication Countermeasures

摘　　要：设计了一款工作于225MHz~500MHz的全向高增益套筒天线,结合阻抗变换结构,实现了套筒天线的小型化、宽频带和高效率。为了减少射频电缆等对天线性能的影响,设计了高阻抗结构,抑制了不平衡电流对天线电压驻波比和方向图的影响。建模进行了仿真,依据仿真结果加工了实物并进行了测试,结果表明仿真结果和实测结果一致性良好。In this paper,an omi-directional high-gain sleeve antenna is designed,which works from 225 MHz to 500 MHz,combining with impedance transformation structure,the sleeve antenna has the characteris-tic of small size,wide band and high efficiency.In order to reduce the influence of RF cable on antenna perfor-mance,a high impedance structure is designed to suppress the effect of unbalanced current on VSWR and pat-tern.According to the simulation result,the real object is processed and tested.The result show that the consis-tency is good.

关 键 词：套筒天线 切比雪夫阻抗变换 宽频带 高阻抗结构 不平衡电流 

分 类 号：TN823.18[电子电信—信息与通信工程]