上海大学学报(自然科学版) ›› 2010, Vol. 16 ›› Issue (2): 111-114.

• 通信与信息工程 •    下一篇

缺口圆环激励的圆极化陶瓷介质谐振器天线

李丽娴1 ,钟顺时1 ,许赛卿1,2 ,陈敏华1   

  1. 1.上海大学 通信与信息工程学院,上海 200072; 2.浙江正原电气股份有限公司,浙江 嘉兴 314003
  • 收稿日期:2009-01-06 出版日期:2010-04-20 发布日期:2010-04-20
  • 通讯作者: 钟顺时(1939~),男,教授,博士生导师,研究方向为现代天线理论与技术等. E-mail:shshzhong@163.com
  • 基金资助:

    国家高技术研究发展计划(863计划)资助项目(2007AA12Z125);上海大学创新基金资助项(SHUCX092130)

Circularly Polarized Ceramics Dielectric Resonator Antenna Excited by Gapped Annular Slot

 LI Li-Xian-1, ZHONG Shun-Shi-1, XU Sai-Qing-1, 2, CHEN Min-Hua-1   

  1. 1. School of Communication and Information Engineering, Shanghai University, Shanghai 200072, China;
    2. Zhejiang Zhengyuan Electric Co., Ltd., Jiaxing 314003, Zhejiang, China
  • Received:2009-01-06 Online:2010-04-20 Published:2010-04-20

摘要:

提出一种用陶瓷介质谐振器实现圆极化工作的方法,并进行分析和讨论.利用缺口圆环口径耦合引入的微扰来实现圆极化,有效地克服了普通圆极化设计的馈电网络复杂等缺点.通过缺口大小的改变,得出了反射损耗和轴比的变化规律,并通过在谐振器上加2个对称的小贴片来改进天线的性能.此天线工作在5.20 GHz,可应用于通信公共频段,并且采用了高介电常数的介质谐振器,使天线达到小型化.

关键词: 介质谐振器天线;陶瓷;圆极化;缺口圆环

Abstract:

An approach for circular polarization (CP) operation of ceramics dielectric resonator antenna is proposed with analysis and discussion. The antenna uses a gapped annular slot to realize CP radiation, which reduces complexity of feed network in ordinary CP designs. By changing the gap size, a variation of  S11 and the axial ratio are studied. Moreover, by adding two small symmetric patches to the resonator, performance of the antenna is further improved. This antenna operates at  5.20 GHz in the public communication band. High dielectric resonator (DR) is used to make the antenna small. 

Key words: dielectric resonator antenna; ceramics; circularly polarization; gap annular slot

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