Dual-band metamaterial with windmill-like structure |
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| Authors: | Xiong Han Hong Jing-Song Jin Da-Lin |
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| Affiliation: | Institute of Applied Physics, University of Electronic Science and Technology of China, Chengdu 610054, China |
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| Abstract: | A broadband negative refractive index metamaterial based on a windmill-like structure is proposed, and investigated numerically and experimentally at the microwave frequency range. From the numerical and experimental results, effect media parameters are retrieved, which clearly show that there exist two broad frequency bands in which the permittivity and permeability are negative. The two negative bands are from 9.1 GHz to 10.5 GHz and from 12.05 GHz to 14.65 GHz respectively, and the negative bandwidth is 4 GHz. Due to the good bandwidth performance, the metallic cell with double negative property obtained in this paper is suitable for use in the design of multiband or broadband microwave devices. |
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| Keywords: | metamaterial negative refractive index broadband |
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