›› 2010, Vol. 23 ›› Issue (12): 5-8.

• 论文 • 上一篇    下一篇

一种基于DMS技术的UWB平面单极子天线设计

 蒋旭东, 李萍, 刘颖   

  1. (1.武警工程学院 研究生管理大队36队,陕西 西安〓710086;2.武警工程学院 通信工程系,陕西 西安〓710086)
  • 出版日期:2010-12-15 发布日期:2010-12-30
  • 作者简介:蒋旭东(1085-),男,硕士研究生。研究方向:电磁场与微波技术。
  • 基金资助:

    陕西省自然科学基金资助项目(2010JM8041)

Design of UWB Planarized Monopole Antenna Using DMS Technique

 JIANG Xu-Dong, LI Ping, LIU Ying   

  1. (1.Graduate Management Unit 36 Team,Armed Police Engineering College,Xi'an 710086,China;
    2.Department of Communications Engineering,Armed Police Engineering College,Xi'an 710086,China)
  • Online:2010-12-15 Published:2010-12-30

摘要:

针对目前超宽频天线进一步展宽频带宽度较难的问题,文中采用两种技术来扩展天线的频带:(1)采用一种新型的微带馈线叫有损微带结构(DMS),该平面结构通过对微带馈线的变形来降低低频段的频率;(2)在地板上靠近辐射板的馈源端处采用平滑的斜角处理,能较好地扩展高频段的可用频率。通过以上两种技术的结合使用,有效地扩展了UWB的带宽。并对辐射贴片开L型槽来实现陷波功能。通过仿真优化天线的可用频率从2~12 GHz,反射系数均<-10 dB。在5~6 GHz频带范围内具有陷波特性,可有效抑制WLAN系统对超宽带系统的干扰。

关键词: DMS;UWB;单极子;陷波特性

Abstract:

Aiming at difficult problems to further enlarge the current bandwidth of the UWB antenna,this paper uses two techniques to enlarge the bandwidth:(1)Using A variation of the novel technique called defected microstrip structure(DMS),the structure is demonstrated to lower the lower bandwidth;(2)The bevel technique in the ground plane near to the feeding point is used to increase the highest bandwidth limit.By using these techniques,effectively enlarge the UWB bandwidth.A L-shaped slot is cut in the radiator to obtain the band-notch function.Experimental results show that the S11 in the work band of 2~12 GHz less than-10 dB.The antenna has a band-notch function from 2 to 12 GHz,and inhibits the potential interference between ultrawideband systems and WLAN systems.

Key words: DMS;UWB;Monopole;band-notch function

中图分类号: 

  • TN821+.3