一种用于DTV频段的套筒单极子天线  

A Sleeve Monopole Antenna for DTV Application

作　　者：闫芳芳[1] 许家栋[1] 侯婷[1] 

机构地区：[1]西北工业大学电子信息学院,西安710072

出　　处：《科学技术与工程》2010年第31期7764-7767,共4页Science Technology and Engineering

摘　　要：针对微带线馈电套筒单极子天线,采用一种分段加宽辐射单极子的方法来展宽平面套筒单极子天线的阻抗带宽。该天线印刷在薄介质基片上,便于制作并与印刷电路共形。通过AnsoftHFSS软件对其辐射特性以及天线的一些参数进行了分析。设计了一个天线仿真实例,并进行尺寸优化,结果表明该天线获得的阻抗带宽(440—866)MHz覆盖了整个DTV((470—862)MHz)频段,并且在整个工作频段内具有稳定的方向图,并满足全向要求。For a microstrip-line-fed sleeve monopole antenna,use the technique of broaden part of radiation monopole to improve the bandwidth of the planar sleeve monopole antenna.This antenna is printed on thin substrate,and is easy to design and integrated to the printed circuit board.The radiation character and some parameters are analyzed by software Ansoft HFSS.Design an simulation example of this antenna,then optimize the dimensions,and the obtained impedance bandwidth（440—866） MHz covers the whole DTV（470—862） MHz band.The radiation patterns are stable across the entire operating bandwidth and meet the omnidirectional requirement.

关 键 词：微带反馈 套筒单极子天线 数字电视系统 

分 类 号：TN828.2[电子电信—信息与通信工程]