西安电子科技大学学报

• 研究论文 • 上一篇    

一种低轮廓半模基片集成波导圆极化天线

张叶枫;朱永忠;刘明飞;芦鸿雁   

  1. (武警工程大学 信息工程系,陕西 西安 710086)
  • 收稿日期:2017-03-13 出版日期:2017-12-20 发布日期:2018-01-18
  • 通讯作者: 朱永忠(1980-),男,副教授,博士,E-mail: bsbs1980@sina.com
  • 作者简介:张叶枫(1991-),女,武警工程大学硕士研究生,E-mail: 250578730@qq.com
  • 基金资助:

    国家自然科学基金资助项目(61302051, 61771490);陕西省自然科学基金资助项目(2012JQ8026);武警工程大学基础研究资助项目(WJY201606)

Low-profile circularly polarized antenna using the half-mode circular substrate integrated waveguide technique

ZHANG Yefeng;ZHU Yongzhong;LIU Mingfei;LU Hongyan   

  1. (Dept. of Information Engineering, Engineering Univ. of PAP, Xi'an 710086, China)
  • Received:2017-03-13 Online:2017-12-20 Published:2018-01-18

摘要:

为减小基片集成波导圆极化天线面积,设计了一种低轮廓半模基片集成波导圆极化天线.通过顶面加载不等长交叉缝隙,天线获得左旋圆极化性能.此外,设计在中间层的加载枝节带状线馈电结构以及在地板的S形缝隙,使得天线获得更好的阻抗匹配.实测结果表明,此天线阻抗带宽为73%(S11≤-10dB),轴比带宽为16%(AR≤3dB),天线的最大增益为62dBi.

关键词: 背腔, 圆极化, 半模基片集成圆腔, 交叉缝隙

Abstract:

A technique to design a compact half mode substrate integrated circular cavity (HMSICC) cavity backed antenna is presented. The proposed antenna achieves left-handed circularly polarized(LHCP) using a crossed slot. The feeding strip-line loaded stub in the middle metallization layer and the S-shaped slot in the bottom metallization layer can achieve a better impedance match. Measured results show that the prototype achieves a bandwidth of 73% for 10dB return loss and that the axial ratio(AR) bandwidth is at least 16% with the maximum gain of 62dBi.

Key words: cavity-backed, circular polarization, half mode substrate integrated circular cavity(HMSICC), crossed-slot