小型超宽带宽缝天线及其带阻功能设计

上海大学学报(自然科学版)

小型超宽带宽缝天线及其带阻功能设计

吕扬准，王子华

(上海大学通信与信息工程学院，上海 200072)

收稿日期:2007-08-31 修回日期:1900-01-01 出版日期:2008-12-21 发布日期:2008-12-21
通讯作者: 王子华

Compact Ultra-Wideband Wide Slot Antenna and the Design of Its Band-Notched Function

LU Yang-zhun,WANG Zi-hua

(School of Communication and Information Engineering, Shanghai University, Shanghai 200072, China)

Received:2007-08-31 Revised:1900-01-01 Online:2008-12-21 Published:2008-12-21
Contact: WANG Zi-hua

摘要/Abstract

摘要： 提出一种新型的小型超宽带（UWB）宽缝天线，并对其进行带阻功能设计.该天线采用椭圆结构的调谐支节，并由共面波导进行馈电.为获得超宽带工作特性，将其辐射缝隙设计为对称多边形.对该天线的性能进行仿真和实验研究，实测结果表明，该天线的-10 dB反射损耗频率范围为3.2~10.1 GHz.另外，通过在椭圆支节上开W形槽，使天线实现对无线局域网（5.150～5.825 GHz）频段的带阻功能.

关键词: 超宽带天线, 带阻特性, 宽缝天线

Abstract:

A novel compact wide-slot planar antenna and its extended design with band-notched function are proposed for ultra-wideband (UWB) applications. The antenna is fed by coplanar wave guide (CPW) with an elliptical tuning stub. A symmetric polygonal wide-slot configuration is used to obtain ultra-wideband characteristics. The characteristics of the proposed antenna are investigated both numerically and experimentally. Experimental results show that the impedance bandwidth of the antenna reaches up to 3.2~10.1 GHz for S₁₁≤-10 dB. In addition, by inserting W-shaped slots on the elliptical stub, band-notched function of the antenna is achieved for WLAN (5.150～5.825 GHz) applications.

Key words: band-notched, wide slot antenna, ultra-wideband antennas

中图分类号:

TN 82

吕扬准;王子华. 小型超宽带宽缝天线及其带阻功能设计[J]. 上海大学学报(自然科学版).

LU Yang-zhun;WANG Zi-hua. Compact Ultra-Wideband Wide Slot Antenna and the Design of Its Band-Notched Function [J]. Journal of Shanghai University（Natural Science Edition）.

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