平面印刷单极子天线频带抑制技术的应用

doi:10.3969/j.issn.1001-2400.2011.04.020

J4 ›› 2011, Vol. 38 ›› Issue (4): 112-117.doi: 10.3969/j.issn.1001-2400.2011.04.020

平面印刷单极子天线频带抑制技术的应用

邓超^1,2;谢拥军¹;李潞²;张殿富²;邹永星²

(1. 西安电子科技大学天线与微波技术重点实验室，陕西西安 710071；
2. 武警工程学院通信与信息技术研究所，陕西西安 710086)

收稿日期:2010-05-19 出版日期:2011-08-20 发布日期:2011-09-28
通讯作者: 邓超
作者简介:邓超(1983-)，男，西安电子科技大学博士研究生，E-mail: dczq100w@yahoo.cn．
基金资助:
国家自然科学基金资助项目(60771040)

Applied research on band notched techniques in planar printed monopole antennas

DENG Chao1,2;XIE Yongjun¹;LI Lu²;ZHANG Dianfu²;ZOU Yongxing²

(1. Science and Technology on Antenna and Microwave Lab., Xidian Univ., Xi'an 710071， China;
2. Comm. and Info. Tech. Inst., Eng. Coll. of Chinese Armed Police Force, Xi'an 710086， China)

Received:2010-05-19 Online:2011-08-20 Published:2011-09-28
Contact: DENG Chao

摘要/Abstract

摘要：

为克服无线通信系统间相互干扰,采用频带抑制技术对共面波导馈电圆形单极子天线进行改进，设计出一副具有双阻带特性的超宽带天线和一副用于无线局域网/全球微波接入(WLAN/WiMAX)系统的三频段天线．通过在圆形贴片底端加载两条多边形槽线，实现了3.29～4.00GHz和5.29～6.00GHz抑制频段的超宽带天线，阻带覆盖了WLAN/WiMAX应用频段．在三频段天线的设计中，综合采用五边形槽线、调谐枝节和扇形槽加载技术，对频带进行阻断和控制．实测三频段天线的工作频带为2.25～2.80GHz、3.3～3.8GHz和5.1～5.9GHz，覆盖了WLAN/WiMAX系统的应用频段，并在其余频段具有良好的频带抑制特性．所设计的两幅天线均具有可调的工作频段，适合复杂环境中对无线通信系统相互干扰的抑制．

关键词: 超宽带, 单极子天线, 平面天线, 多频带天线, 频带抑制

Abstract:

The Coplanar Waveguide (CPW) fed circular monopole antenna is improved to suppress the interference among different wireless systems. An ultra wideband (UWB) antenna with dual band notched characteristics and a tri-band antenna for WLAN/WiMAX applications are, respectively, proposed in this paper. The UWB antenna with the measured band rejection of 3.29～4GHz and 5.29～6GHz is designed by loading two pieces of polygonal slotline at the bottom of the circular patch. Its notched frequency bands cover WLAN and WiMAX systems. In the design of the tri-band antenna, the frequency band of the antenna is controlled and notched by loading the elements of slotline, resonant stub and radial slot on the antenna. This tri-band antenna renders the measured frequency bands of 2.25～2.8GHz, 3.3～3.8GHz and 5.1～5.9GHz, which cover the application bands of WLAN/WiMAX, and has good band rejected characteristics in the remaining frequency band. Both the proposed antennas are of adjustable frequency band, and are suitable for suppressing the interference among wireless systems in the complex circumstance.

Key words: ultra wideband, monopole antennas, planar antennas, multi-band antenna, band notch

中图分类号:

TN821+.3

邓超;谢拥军;李潞;张殿富;邹永星. 平面印刷单极子天线频带抑制技术的应用[J]. J4, 2011, 38(4): 112-117.

DENG Chao;XIE Yongjun;LI Lu;ZHANG Dianfu;ZOU Yongxing. Applied research on band notched techniques in planar printed monopole antennas[J]. J4, 2011, 38(4): 112-117.

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平面印刷单极子天线频带抑制技术的应用

Applied research on band notched techniques in planar printed monopole antennas

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