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A planar left-handed metamaterial based on electric resonators |
Chen Chun-Hui(陈春晖)a)†, Qu Shao-Bo(屈绍波) a)b)‡, Wang Jia-Fu(王甲富)a), Ma Hua(马华)a), Wang Xin-Hua(王新华)a), and Xu Zhuo(徐卓)b) |
a College of Science, Air Force Engineering University, Xi'an 710051, China; b Electronic Materials Research Laboratory, Key Laboratory of the Ministry of Education, Xi'an Jiaotong University, Xi'an 710049, China |
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Abstract A planar left-handed metamaterial(LHM) composed of electric resonator pairs is presented in this paper. Theoretical analysis, an equivalent circuit model and simulated results of a wedge sample show that this material exhibits a negative refraction pass-band around 9.6GHz under normal-incidence and is insensitive to a change in incidence angle. Furthermore, as the angle between the arm of the electric resonators and the strip connecting the arms increases, the frequency range of the pass-band shifts downwards. Consequently, this LHM guarantees a relatively stable torlerence of errors when it is practically fabricated. Moreover, it is a candidate for designing multi-band LHM through combining the resonator pairs with different angles.
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Received: 26 June 2010
Revised: 29 November 2010
Accepted manuscript online:
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PACS:
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41.20.Jb
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(Electromagnetic wave propagation; radiowave propagation)
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42.25.Bs
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(Wave propagation, transmission and absorption)
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73.20.Mf
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(Collective excitations (including excitons, polarons, plasmons and other charge-density excitations))
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77.22.Ch
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(Permittivity (dielectric function))
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Fund: Project supported by the National Natural Science Foundation of China (Grant Nos. 50632030 and 60871027), the National Basic Research Program of China(Grant No. 2009CB613306) and the Natural Science Foundation of Shaanxi Province, China (Grant No. SJ08F01). |
Cite this article:
Chen Chun-Hui(陈春晖), Qu Shao-Bo(屈绍波), Wang Jia-Fu(王甲富), Ma Hua(马华), Wang Xin-Hua(王新华), and Xu Zhuo(徐卓) A planar left-handed metamaterial based on electric resonators 2011 Chin. Phys. B 20 034101
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