A new patch antenna with metamaterial cover
A new patch antenna with metamaterial cover
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一种带有超材料盖的新型贴片天线
DOI：
10.1631/jzus.2006.a0089
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发表时间：
2006
期刊：
影响因子：
--
通讯作者：
Qing
中科院分区：
文献类型：
--
作者：
Jun Hu;Chun;Qing
将一种超材料引入贴片天线罩中，分析了其频带结构。正确选择工作频率的超材料罩使贴片天线的指向性提高了9.14 dB。超材料覆盖的机理与光子带隙覆盖的机理完全不同。详细分析了超材料覆盖层的形成机理、覆盖层的层数和层间距离。结果表明，这种类似透镜的超材料覆盖层可以有效地提高贴片天线的指向性。并给出了改善的物理原因。
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.