一种改进的杠铃形超宽带天线

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一种改进的杠铃形超宽带天线

作者：袁海军, 马云辉

来源：《现代电子技术》2011年第09期

摘要：为了优化超宽带天线的阻抗带宽，提出了一种改进的杠铃形超宽带天线，通过增

加阶梯形缺口及采用部分接地面从而改善超宽带阻抗匹配。测量结果表明，天线的输入阻抗带宽达74.7%(3.45~7.56 GHz)，同时数值仿真表明在y-z和x-z平面方向图呈对称分布。

关键词：超宽带天线；杠铃形天线；部分接地面; 数值仿真; 方向图

中图分类号：TN822-34

文献标识码：A

文章编号：1004-373X(2011)09-0057-03

An Improved Barbell-shape UWB Antenna

YUAN Hai-jun, MA Yun-hui

(Zhongshan Institute, University of Electronic Science and Technology of China, Zhongshan 528402, China)

Abstract： In order to optimize the impedance bandwidth of ultra-wide band (UWB) antenna, a kind of improved barbell-shape UWB antenna is proposed. The impedance matching of UWB is improved by adding the stepped appearance gaps and adopting the partial ground plane. The measured results shows that input impedance bandwidth of the improved antenna is up to 74.7% (3.45～7.56 GHz). The symmetrical distribution in the y-z and x-z planes of radiation patterns are obtained by numerical simulation.

Keywords： UWB antenna; barbell-shape antenna; partial ground plane; numerical simulation; radiation pattern

0 引言

超宽带(UWB)技术作为一种无线通信技术，在短距离室内高速无线通信方面也受到人们越来越多的关注。根据FCC规定，将3.1~10.6 GHz之间的7.5 GHz频段分配给超宽带通信业务