一种宽带印刷套筒天线的设计  

Design of a Printed Sleeve Antenna with Broadband

作　　者：张涛[1] 傅光[1] 张志亚[1] 陈曦[1] 梅征[1] 

机构地区：[1]西安电子科技大学天线与微波技术国防重点实验室,西安710071

出　　处：《微波学报》2010年第S2期197-199,共3页Journal of Microwaves

摘　　要：提出了一种宽带印刷套简天线,此天线通过选择三角渐变的辐射贴片和平面的套筒结构实现了宽频带特性,在VSWR<2.5时实测阻抗带宽可覆盖450～1150 MHz,可用于覆盖数字电视频段(470～862 MHz)。同时辐射方向图在水平面也具有良好的全向性。通过顶加载的形式有效地降低了天线的实际高度。A printed sleeve antenna with broadband is proposed in this paper.The broadband trait is achieved by gradually changing the shape of the triangle patch and using a planar sleeves.The metrical impedance bandwidth of 450-1150MHz,in 2.5:1 VSWR can cover the frequency band of DTV(470-862MHz).The almost omni-directional radiation pattern at the horizontal plane is obtained.The height of the antenna is minished by adding a load on the top of the antenna.

关 键 词：数字电视通信 印刷天线 套筒 单极子 

分 类 号：TN821[电子电信—信息与通信工程]