Isotropic Single Negative Metamaterials
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Date
2008-09
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Mark
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Společnost pro radioelektronické inženýrství
Abstract
This paper presents the application of simple, and therefore cheap, planar resonators for building 3D isotropic metamaterials. These resonators are: a broadside-coupled split ring resonator with a magnetic response providing negative permeability; an electric dipole terminated by a loop inductor together with a double H-shaped resonator with an electric response providing negative permittivity. Two kinds of 3D isotropic single negative metamaterials are reported. The first material consists of unit cells in the form of a cube bearing on its faces six equal planar resonators with tetrahedral symmetry. In the second material, the planar resonators boxed into spherical plastic shells and randomly distributed in a hosting material compose a real 3D volumetric metamaterial with an isotropic response. In both cases the metamaterial shows negative permittivity or permeability, according to the type of resonators that are used. The experiments prove the isotropic behavior of the cells and of the metamaterial specimens.
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Citation
Radioengineering. 2008, vol. 17, č. 3, s. 1-7. ISSN 1210-2512
http://www.radioeng.cz/fulltexts/2008/08_03_001_007.pdf
http://www.radioeng.cz/fulltexts/2008/08_03_001_007.pdf
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Peer-reviewed
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en