Isotropic artificial media with simultaneously negative permittivity and permeability

✍ Scribed by Irina Vendik; Orest Vendik; Mikhail Odit

• Book ID: 102520408
• Publisher: John Wiley and Sons
• Year: 2006
• Tongue: English
• Weight: 214 KB
• Volume: 48
• Category: Article
• ISSN: 0895-2477
• DOI: 10.1002/mop.22002

✦ Synopsis

Abstract

A composite medium consisting of two sublattices of dielectric spherical particles of high permittivity and different radii embedded in a dielectric matrix of smaller permittivity are considered. It has been shown that such a composite medium reveals properties of an isotropic double negative media in the frequency range where resonance oscillations of H~111~ mode in one kind of particles and E~111~ mode in another kind of particles are excited simultaneously. The E~111~ resonance and the H~111~ resonance give rise to the magnetic dipole momentum and the electric dipole momentum correspondingly. Averaging the magnetic momentum and the electric momentum over the cells belonging to the appropriate spherical particles reveals the negative permittivity and permeability. Distribution of the electromagnetic wave outside the sphere was calculated. Influence of dispersion of the sphere permittivity and size on the effective parameters was estimated. © 2006 Wiley Periodicals, Inc. Microwave Opt Technol Lett 48: 2553–2556, 2006; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.22002