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ZJUS-A
Journal of Zhejiang University-SCIENCE A (Applied Physics & Engineering)  2006, Vol. 7 Issue (1): 89-94    DOI: 10.1631/jzus.2006.A0089
Articles     
A new patch antenna with metamaterial cover
Hu Jun, Yan Chun-sheng, Lin Qing-chun
State Key Laboratory for Modern Optical Instrumentation, Center for Optical and Electromagnetic Research, Zhejiang University, Hangzhou 310027, China
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Abstract  A metamaterial was introduced into the cover of a patch antenna and its band structure was analyzed. The metamaterial cover with correct selection of the working frequency increases by 9.14 dB the patch antenna’s directivity. The mechanism of metamaterial cover is completely different from that of a photonic bandgap cover. The mechanism of the metamaterial cover, the number of the cover’s layers, and the distance between the layers, were analyzed in detail. The results showed that the metamaterial cover, which works like a lens, could effectively improve the patch antenna’s directivity. The physical reasons for the improvement are also given.

Key words： Metamaterial      Patch antenna      FDTD      Plane wave expansion method     
Received: 02 November 2005     
CLC:  TN82  
  O73  
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Hu Jun
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Cite this article:

Hu Jun, Yan Chun-sheng, Lin Qing-chun. A new patch antenna with metamaterial cover. Journal of Zhejiang University-SCIENCE A (Applied Physics & Engineering), 2006, 7(1): 89-94.

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http://www.zjujournals.com/xueshu/zjus-a/10.1631/jzus.2006.A0089     OR     http://www.zjujournals.com/xueshu/zjus-a/Y2006/V7/I1/89

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