| Reflection behaviors of negative permeability metamaterials in X-band |
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| 作者姓名： | KANG Lei ZHAO Qian ZHAO Xiaopeng |
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| 作者单位： | Institute of Electrorheological Technology, Department of Applied Physics, Northwestern Polytechnical University, Xi'an 710072, China |
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| 基金项目： | Supported by the National Science Fund for Distinguished Young Scholars (Grant No. 50025207)
National Natural Science Foundation of China (Grant No. 50272054)
the Major State Basic Research Development Program of China (Grant No. 2004CB719805) |
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| 摘 要： | We experimentally investigate the reflection behaviors of negative permeability metamaterials (NPMs) consisting of a periodic array of copper hexagonal split ring resonators (SRRs). Results show that, for the two-dimensional (2-D) NPMs samples, a reflectivity peak with the height of 10 dB appears near the resonance frequency, and the reflectivity is remarkably weak on both sides of the transmission gap; the reflection behaviors of 3-D samples similar to that of the 2-D ones are strongly affected by the lattice constants; the reflection phase increases with the frequency, and an inflexion exists at the resonance frequency of 2-D samples.
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| 关 键 词： | negative permeability metamaterials reflection behaviors. |
Reflection behaviors of negative permeability metamaterials in X-band |
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| KANG Lei,ZHAO Qian,ZHAO Xiaopeng.Reflection behaviors of negative permeability metamaterials in X-band[J].Progress in Natural Science,2006,16(3):324-327. |
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| Authors: | KANG Lei ZHAO Qian ZHAO Xiaopeng |
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| Institution: | Institute of Electrorheological Technology,Department of Applied Physics,Northwestern Polytechnical University,Xi'an 710072,China |
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| Abstract: | We experimentally investigate the reflection behaviors of negative permeability metamaterials (NPMs) consisting of a periodic array of copper hexagonal split ring resonators (SRRs). Results show that, for the two-dimensional (2-D) NPMs samples, a reflectivity peak with the height of 10 dB appears near the resonance frequency, and the reflectivity is remarkably weak on both sides of the transmission gap; the reflection behaviors of 3-D samples similar to that of the 2-D ones are strongly affected by the lattice constants; the reflection phase increases with the frequency, and an inflexion exists at the resonance frequency of 2-D samples. |
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| Keywords: | negative permeability metamaterials reflection behaviors |
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