| Stopband Phenomena in the Passband of Left-Handed Metamaterials |
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| 作者姓名： | 赵晓鹏 赵乾 张富利 赵伟 刘亚红 |
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| 作者单位： | Institute of Electrorheological Technology, Department of Applied Physics, Northwestern Polytechnical University, Xi＇an 710072 |
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| 基金项目： | Supported by the National Natural Science Foundation of China for Distinguished Young Scholar of China under Grant No 50025207, and the National Basic Research Programme of China under Grant No 2004CB719800. |
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| 摘 要： | Stopband phenomena are reported in the passband of left-handed metamaterials. The samples with linear defect are designed by removing one layer of split ring resonators （SRRs）. It is shown that the left-handed transmission peaks have a distinct transform with the relative deviation of the SRRs centre from the wire centre 8, from a single left-handed peak, double left-handed peaks with different magnitude to no transmission peak, i.e. left-handed properties of metamaterials disappear. Numerical simulation shows that the change of 8 makes the effective permeability shift at a frequency range, where stopband occurs. It is thought that the stopband in left-handed passband is due to the symmetry breaking between SRRs and wires in the metamaterials.
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| 关 键 词： | 衰减现象 开口环 通频带 准材料 衰减带 介电常数 |
| 收稿时间： | 2005-06-22 |
| 修稿时间： | 2005-06-22 |
Stopband Phenomena in the Passband of Left-Handed Metamaterials |
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| ZHAO Xiao-Peng, ZHAO Qian, ZHANG Fu-Li, ZHAO Wei, LIU Ya-Hong.Stopband Phenomena in the Passband of Left-Handed Metamaterials[J].Chinese Physics Letters,2006,23(1):99-102. |
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| Authors: | ZHAO Xiao-Peng ZHAO Qian ZHANG Fu-Li ZHAO Wei LIU Ya-Hong |
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