Modelling of isotropic double negative media for microwave applications

• Autorzy: Vendik I. , Vendik O. , Kolmakov I. , Odit M.
• Języki publikacji: EN

Abstrakty

EN

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 (DNG) in a limited frequency range, when resonance oscillations of H_III mode in one kind of particles and E_III mode in another kind of particles are excited simultaneously. The E_III resonance and the H_III 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 gives the negative permittivity and permeability. The model of diffraction of a plane electromagnetic wave on a dielectric sphere is presented and compared with the mixing rule based consideration. The results obtained are rather close. Distribution of the electromagnetic wave outside the sphere is calculated. Influence of the dispersion of the sphere size and the dielectric permittivity on the effective parameters of the DNG material is estimated.

Słowa kluczowe

EN

composite medium; double negative; metamaterial; spherical particle; mixing rule; diffraction; isotropic

• Wydawca: Stowarzyszenie Elektryków Polskich ; Polska Akademia Nauk ; Wojskowa Akademia Techniczna im. Jarosława Dąbrowskiego
• Czasopismo: Opto-Electronics Review
• Rocznik: 2006
• Tom: Vol. 14, No. 3
• Strony: 179--186
• Opis fizyczny: Bibliogr. 20 poz., wykr.

Twórcy

autor

Vendik I.

autor

Vendik O.

autor

Kolmakov I.

autor

Odit M.

• Microwave Microelectronics Laboratory, Dept. of Microelectronics & Radio Engineering, St.-Petersburg Electrical University, 5 Prof. Popov Str., 197376, St.-Petersburg, Russia,

Bibliografia

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