阻抗带宽超过21∶1的印刷单极天线

上海大学学报(自然科学版)

阻抗带宽超过21∶1的印刷单极天线

钟顺时1，梁仙灵1，张丽娜1，汪伟2

1.上海大学通信与信息工程学院，上海 200072； 2.华东电子工程研究所，合肥 230031

收稿日期:2007-02-28 修回日期:1900-01-01 出版日期:2007-08-20 发布日期:2007-08-20
通讯作者: 钟顺时

Printed Monopole Antenna with Impedance Bandwidth Exceeding 21∶1

ZHONG Shun-shi1, LIANG Xian-ling1, ZHANG Li-na1, WANG Wei2

1. School of Communication and Information Engineering, Shanghai University, Shanghai 200072， China；2. East China Research Institute of Electronic Engineering, Hefei 230031, China

Received:2007-02-28 Revised:1900-01-01 Online:2007-08-20 Published:2007-08-20
Contact: ZHONG Shun-shi

摘要/Abstract

摘要： 介绍一种具有极宽带特性的印刷单极天线，该天线由椭圆单极贴片和共面的梯形导体地板组成，通过位于地板中央的渐变共面波导来馈电.仿真和实验结果表明，该天线获得了21.6∶1的比带宽(VSWR≤2)，覆盖频率范围0.41～8.86 GHz，并具有良好的全向辐射特性，而其面积仅为0.19λl×0.16λl(λl为最低工作频率时的波长).

关键词: 超宽带, 渐变共面波导, 梯形地板, 小型化
, 印刷单极天线

Abstract: A printed monopole antenna with an extremelywide bandwidth is proposed, which consists of an elliptical monopole patch and a coplanar trapezoid ground plane. A tapered coplanar waveguide (CPW) feeder in the middle of the ground plane is used to feed the monopole. The simulated and experimental results demonstrate that this antenna achieves a ratio bandwidth of 21.6∶1 for VSWR≤2, covering the frequency range from 0.41 to 8.86 GHz. It has good omnidirectional radiation characteristics, with a small area of only about 0.19λl×0.16λl, where λl is the wavelength of the lowest operating frequency.

Key words: miniaturization
, super-wideband (SWB), tapered CPW, trapezoid ground plane, printed monopole antenna

中图分类号:

TN82

钟顺时;梁仙灵;张丽娜;汪伟. 阻抗带宽超过21∶1的印刷单极天线[J]. 上海大学学报(自然科学版).

ZHONG Shun-shi;LIANG Xian-ling;ZHANG Li-na;WANG Wei. Printed Monopole Antenna with Impedance Bandwidth Exceeding 21∶1[J]. Journal of Shanghai University（Natural Science Edition）.

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