Investigation of negative index properties of planar metamaterials based on split-ring pairs |
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| Authors: | Yong Zhi Cheng He Lin Yang Yan Nie Rong Zhou Gong Zheng Ze Cheng |
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| Institution: | 1.Department of Electronic Science and Technology,Huazhong University of Science and Technology,Wuhan,China;2.College of Physical Science and Technology,Huazhong Normal University,Wuhan,China;3.The School of Electronic and Information Engineering,XianNing University,Xianning,China |
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| Abstract: | A low losses broadband planar negative refractive index metamaterial based on split-ring resonator (SRR) pairs is proposed
and investigated experimentally and numerically at microwave frequency range. The transmission spectra of the single-layer
SRR pairs were measured, and exhibited left-handed (LH) transmission passband clearly. The metal-dielectric-metal structure
exhibits strong magnetic and electric responses simultaneously, and leads to negative permeability and negative permittivity.
To further verify the LH properties of planer structure metamaterials, effect media parameters were retrieved, a refraction
phenomenon based on a wedge-shaped model and negative phase advance between consecutive numbers of layers were also demonstrated. |
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