Electromagnetic scattering from two eccentric metamaterial cylinders with frequency-dependent permittivities differing slightly each other

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39 Citations (Scopus)

Abstract

The interaction between a metamaterial cylindrical structure and an incident plane wave is investigated. The structure is comprised of two cylinders, one embedded into the other, whose effective characteristics vary with the operating frequency following similar laws. Such a model can be used to describe periodic structures, constituting metamaterials, with slightly different features. The wellknown eigenfunction expansions are adopted, while the boundary conditions are manipulated with help of the translation theorem for cylindrical coordinates. A first-order perturbation solution is obtained leading to simple and computationally efficient formulas. The fluctuations of near-field and far-field responses with respect to the position of the internal cylinder, the permittivities and the frequency are observed and discussed.

Original languageEnglish
Pages (from-to)23-34
Number of pages12
JournalProgress In Electromagnetics Research B
Volume3
Publication statusPublished - Jan 1 2008
Externally publishedYes

Fingerprint

electromagnetic scattering
Metamaterials
eccentrics
Permittivity
Scattering
permittivity
cylindrical coordinates
Periodic structures
Eigenvalues and eigenfunctions
far fields
near fields
eigenvectors
plane waves
theorems
Boundary conditions
boundary conditions
perturbation
expansion
interactions

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Electrical and Electronic Engineering

Cite this

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