| 微波超材料隐形结构及其新型快速实验方案 |
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| 引用本文： | 闻孺铭,李凌云,韩克武,孙晓玮.微波超材料隐形结构及其新型快速实验方案[J].物理学报,2010,59(7):4607-4611. |
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| 作者姓名： | 闻孺铭 李凌云 韩克武 孙晓玮 |
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| 作者单位： | 中国科学院上海微系统与信息技术研究所射频与能源微系统技术实验室,上海,200050 |
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| 基金项目： | 国家自然科学基金(批准号:60771058)和国家重点基础研究发展计划(批准号:2009CB320207)资助的课题. |
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| 摘 要： | 基于Maxwell方程组在坐标变换下的协变性,利用柱坐标变换以及开口谐振环周期排列而形成的超材料设计了一个工作于10.14GHz频率下的隐形结构.采用一种新型快速实验方案测量微波信号强度.实验结果表明在外围增加了隐形结构之后,圆柱金属的阴影和散射效应都被削弱,得到了预期的隐形效果.该实验系统降低了系统的结构复杂性并缩短了实验周期,为该领域的研究提供了一种新的简单有效的实验方案.
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| 关 键 词： | 隐形结构 超材料 坐标变换 Maxwell方程组 |
| 收稿时间： | 2009-07-17 |
A quick novel experimental method of metamaterial electromagnetic cloaking structure at microwave frequencies |
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| Wen Ru-Ming,Li Ling-Yun,Han Ke-Wu,Sun Xiao-Wei.A quick novel experimental method of metamaterial electromagnetic cloaking structure at microwave frequencies[J].Acta Physica Sinica,2010,59(7):4607-4611. |
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| Authors: | Wen Ru-Ming Li Ling-Yun Han Ke-Wu Sun Xiao-Wei |
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| Institution: | Radio Frequency and Energy Microsystem Technology Laboratory, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai 200050, China;Radio Frequency and Energy Microsystem Technology Laboratory, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai 200050, China;Radio Frequency and Energy Microsystem Technology Laboratory, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai 200050, China;Radio Frequency and Energy Microsystem Technology Laboratory, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai 200050, China |
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| Abstract: | Based on Maxwell’s equations’ form-invariance to coordinate transformations, an electromagnetic cloaking structure at 10.14 GHz was designed by cylindrical coordinate transformation and made with metamaterial composed of split-ring resonators. A quick novel experiment method was used to measure the power level of the received microwave signal. The cloaking structure reduced scattering from the hidden object and meanwhile reduced its shadow effect, which was consistent with theoretical expectations. The experiment system reduced the complexity and shortened the time of measurement, which provided a new simple and effective experimental method in this field. |
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| Keywords: | cloaking structure metamaterial coordinate transformations Maxwell’s equations |
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