一种基于微带槽天线的带阻性UWB天线的.pdf

2012 年第 02 期,第 45 卷通信技术 ,,2012
总第 242 munications Technology ,Totally

一种基于微带槽天线的带阻性 UWB 天线的研究

曹琼琼, 单志勇
(东华大学信息与科学技术学院,上海 201620)

【摘要】提出了一种新颖的小型平面超宽带天线。该天线由微带槽天线的基本结构变形而来,为获
得超宽带的频率特性,设计时馈电微带采用了圆弧形调谐枝节,金属底板的开槽设计成对称多边形之后通
过数值计算获得最佳的天线几何尺寸。通过HFSS ~ GHz 的超宽带
UWB天线,其对包含在超宽带频段范围内的民用频率范围有一定的滤除作用,结构简单并且驻波特性良好,
方向图具有准全向性。
【关键词】超宽带;超宽带天线;微带天线;小型平面天线
【中图分类号】 【文献标识码】A 【文章编号】1002-0802(2012)02-0045-04

Study on Ultra-wideband Antenna based on Microstrip Slot Antenna

CAO Qiong-qiong, SHAN Zhi-yong
(Department of Information Siences and Technology, Donghua University, Shanghai 201620, China)

【Abstract】One pact planar antenna for Ultra-wideband (UWB) applications is proposed
in this paper. Similar to conventional microstrip slot antennas, a circular arc shape is employed
to achieve ultra-wideband characteristics. A symmetric polygonal wide slot is etched on metallic
baseplate of the antenna. Through HFSS simulation and experiment, an Ultra-Wideband antenna
operating within ~ GHz is designed. This antenna, simple in structure, is of good VSWR
and omnidirectional uniformity performance, and has a good filtering-off of the civil frequency
in the ultra wideband frequency range.
【Key words:】UWB; ultra-wideband antennas; microstrip antennas; compact planar antenna

0 引言贴片微带天线,它比单贴片