A planar left-handed metamaterial based on electric resonators |
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Authors: | Chen Chun-Hui Qu Shao-Bo Wang Jia-Fu Ma Hu Wang Xin-Hua and Xu Zhuo |
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Affiliation: | College of Science, Air Force Engineering University, Xi'an 710051, China; 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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Keywords: | planar left-handed metamaterial electric resonator multi-band metamaterial |
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