| A new patch antenna with metamaterial cover |
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| 作者姓名： | 胡骏 阎春生 林青春 |
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| 作者单位： | State Key Laboratory for Modern Optical Instrumentation Center for Optical and Electromagnetic Research Zhejiang University，Hangzhou 310027 China，State Key Laboratory for Modern Optical Instrumentation Center for Optical and Electromagnetic Research Zhejiang University，Hangzhou 310027 China，State Key Laboratory for Modern Optical Instrumentation Center for Optical and Electromagnetic Research Zhejiang University，Hangzhou 310027 China |
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| 基金项目： | Project (No. 2004CB719802) supported by the National Basic Research Program (973) of China |
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| 摘 要： | INTRODUCTION Investigation of metamaterials is currently one of the most active frontiers in engineering and physics. Metamaterials are also called backward-wave mate- rials, double-negative materials, or left-handed mate- rials. Left-handed materials were proposed by Vese- lago (1968). The applications of metamaterials are widely spread in many fields (Pendry, 2000; Grbic and Eleftheriades, 2003; Foteinopoulou et al., 2003), such as imaging apparatus, planar light wave circuits, optica…
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| 关 键 词： | 天线 覆盖 FDTD 平面波扩展方法 晶体材料 |
| 收稿时间： | 2005-11-02 |
| 修稿时间： | 2005-11-28 |
A new all-zero 4×4 block determination rule for integer transform and quantization in AVS-M encoder |
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| Liu?Dong-hua,Chen?Yi-qiang.A new patch antenna with metamaterial cover[J].Journal of Zhejiang University Science,2006,7(1):89-94. |
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| Authors: | Liu Dong-hua Chen Yi-qiang |
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| Institution: | (1) 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.
Project (No. 2004CB719802) supported by the National Basic Research Program (973) of China |
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| Keywords: | Metamaterial Patch antenna FDTD Plane wave expansion method |
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