J4 ›› 2010, Vol. 37 ›› Issue (2): 295-299.doi: 10.3969/j.issn.1001-2400.2010.02.020

• 研究论文 • 上一篇    下一篇

一种微带贴片天线RCS减缩新方法

凌劲;龚书喜;张鹏飞;袁宏伟;路宝;王文涛   

  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)
  • 收稿日期:2009-01-05 修回日期:2009-03-05 出版日期:2010-04-20 发布日期:2010-06-03
  • 通讯作者: 凌劲
  • 作者简介:凌劲(1983-),男,西安电子科技大学博士研究生,E-mail: dywc_79@126.com.
  • 基金资助:

    国家自然科学基金资助项目(60801042)

Method for RCS reduction of the mircostrip patch antenna

LING Jin;GONG Shu-xi;ZHANG Peng-fei;YUAN Hong-wei;LU Bao;WANG Wen-tao   

  1. (Key Lab. of Antennas and Microwave Technology, Xidian Univ., Xi'an  710071, China)
  • Received:2009-01-05 Revised:2009-03-05 Online:2010-04-20 Published:2010-06-03
  • Contact: LING Jin

摘要:

为了减小微带贴片天线的雷达散射截面(RCS),利用电磁带隙结构(UC-EBG)的带阻特性,提出用UC-EBG代替普通金属作为微带贴片天线的地板.当天线工作频带内的电磁波入射时,UC-EBG地板呈现出带阻特性,不影响天线的正常工作;而在该频带以外,UC-EBG地板具有良好的带通特性,对入射电磁波起透射作用,从而可以达到减小天线带外RCS的目的.仿真和测量的结果吻合良好,证明了此方法的有效性.

关键词: 微带贴片天线, 地板, 雷达散射截面, 电磁带隙

Abstract:

To reduce the RCS (Radar Cross Section) of a microstrip patch antenna, the UC-EBG structure is used as the ground plane of a microstrip patch antenna because of the stop-band property of the UC-EBG. In the pass-band, the UC-EBG can let many more incident waves pass. Therefore, it can effectively reduce the RCS of the microstrip patch antenna outside operating band. The simulated and measured results are in good agreement with each other and show that this method is effective.

Key words: microstrip patch antenna, ground, radar cross section, electromagnetic band-gap