中文

Journal of Shanghai University（Natural Science Edition） ›› 2010, Vol. 16 ›› Issue (2): 111-114.

• Communication and Information •     Next Articles

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

PDF

1699

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

CLC Number: