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A double H-shaped resonator and its use as an isotropic ENG metamaterial

Published online by Cambridge University Press:  19 June 2009

Michal Blaha ,
Jan Machac  and
Martin Rytir
Michal Blaha
Affiliation:
Czech Technical University in Prague, Technicka 2, Prague 16627, Czech Republic.
Jan Machac*
Affiliation:
Czech Technical University in Prague, Technicka 2, Prague 16627, Czech Republic.
Martin Rytir
Affiliation:
Czech Technical University in Prague, Technicka 2, Prague 16627, Czech Republic.
*
Corresponding author: J. Machac[email protected]
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Abstract

This paper presents a new planar particle that shows negative effective permittivity under irradiation by an electromagnetic wave. The mutual coupling between the couples of these particles is studied in particular. The response of this particle sensitive to an electric field is strongly anisotropic. The particle is aimed to be used to compose an isotropic epsilon-negative metamaterial in two forms. First, a unit cell of the metamaterial consists of a cube bearing six particles on its faces, located with specific orientations. The experiments showed that this unit cell is suitable for manufacturing an isotropic epsilon-negative metamaterial obtained by arranging these cells in a 3D cubic periodic system. The second form of an epsilon-negative metamaterial with an isotropic response consists of the planar particles themselves, distributed quasi-randomly, composing a 2D system and/or of particles placed in spherical shells and distributed fully randomly in a hosting material forming a 3D system. The isotropy of these systems was verified by measurements in a rectangular waveguide.

Keywords

MetamaterialParticleIsotropicMutual coupling
Type
Original Article
Information
International Journal of Microwave and Wireless Technologies , Volume 1 , Special Issue 4: European Microwave Week 2008 , August 2009 , pp. 315 - 321
Copyright
Copyright © Cambridge University Press and the European Microwave Association 2009

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References

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