ELECTROMAGNETISM, OPTICS, ACOUSTICS, HEAT TRANSFER, CLASSICAL MECHANICS, AND FLUID DYNAMICS |
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A novel structure for broadband left-handed metamaterial |
Xiong Han (熊汉), Hong Jing-Song (洪劲松), Jin Da-Lin (金大琳), Zhang Zhi-Min (章志敏) |
Institute of Applied Physics, University of Electronic Science and Technology of China, Chengdu 610054, China |
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Abstract A low absorptivity broadband negative refractive index metamaterial with multi-gap split-ring and metallic cross (MSMC) structure is proposed and investigated numerically and experimentally in the microwave frequency range. From the numerical and experimental results, the effective media parameters were retrieved, which clearly show that there exists a very wide frequency band where the permittivity and permeability are negative. The influence of the structure parameters on the magnetic response and the cut-off frequency of the negative permittivity are studied in detail. This metamaterial would have potential application in designing broadband microwave devices.
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Received: 08 March 2012
Revised: 02 April 2012
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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Fund: Project supported by the National Natural Science Foundation of China (Grant Nos. 61172115 and 60872029), the High-Tech Research and Development Program of China (Grant No. 2008AA01Z206), the Aeronautics Foundation of China (Grant No. 20100180003), and the Fundamental Research Funds for the Central Universities of China (Grant No. ZYGX 2009J037). |
Corresponding Authors:
Xiong Han
E-mail: xiong1226han@126.com
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Cite this article:
Xiong Han (熊汉), Hong Jing-Song (洪劲松), Jin Da-Lin (金大琳), Zhang Zhi-Min (章志敏) A novel structure for broadband left-handed metamaterial 2012 Chin. Phys. B 21 094101
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