| 基于零折射率超材料的高定向性微带天线 |
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| 引用本文： | 郭晓静,赵晓鹏,刘亚红,朱卫仁.基于零折射率超材料的高定向性微带天线[J].电子技术应用,2011,37(6):110-112. |
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| 作者姓名： | 郭晓静 赵晓鹏 刘亚红 朱卫仁 |
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| 作者单位： | 西北工业大学应用物理系智能材料实验室,陕西西安,710129 |
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| 摘 要： | 研究了一种基于平面网格状零折射率超材料的高定向性微带天线.利用超材料结构的平均效应实现了在10.24 GHz处介电常数为零,进而实现了超材料的折射率为零.实验结果表明,利用零折射率超材料对波束产生汇聚作用,使微带天线的定向性明显增强,E面、H面半功率波束宽度分别收缩了56.67°和26.60.,侧向辐射明显减弱,天线的...
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| 关 键 词： | 高定向性 微带天线 零折射率 |
A high-directivity microstrip antenna based on zero-index metamaterial |
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| Guo Xiaojing,Zhao Xiaopeng,Liu Yahong,Zhu Weiren.A high-directivity microstrip antenna based on zero-index metamaterial[J].Application of Electronic Technique,2011,37(6):110-112. |
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| Authors: | Guo Xiaojing Zhao Xiaopeng Liu Yahong Zhu Weiren |
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| Affiliation: | Guo Xiaojing,Zhao Xiaopeng,Liu Yahong,Zhu Weiren(Smart material laboratory,Department of Applied Physics,Northwestern Polytechnical University,Xi'an 710129,China) |
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| Abstract: | We design,fabricate,and experimental demonstrate a high-directivity microstrip antenna based on planar net-shaped zero-index metamaterial.An averaging effect over the metamaterial structure yields an zero permittivity at 10.24 GHz,which results in a metamaterial with zero index of refraction.The experimental results indicated that,the directivity of the zero-index microstrip antenna improved greatly,the half-power beamwidths reduction of E plane and H plane are 56.67° and 26.60°,respectively.Moreover,the side radiation reduced while the forward radiation increased,and the gain of the antenna is enhanced by 3.80 dB. |
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| Keywords: | high-directivity microstrip antenna zero-index metamaterial |
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