Modeling of Isotropic Backward-Wave Materials Composed of Resonant Spheres

Details Modeling of Isotropic Backward-Wave Materials Composed of Resonant Spheres Modeling of Isotropic Backward-Wave Materials Composed of Resonant Spheres

2005-07-14

arxiv.org/abs/cond-mat/0507324v1

Physics

Condensed Matter

Materials Science

15 pages, 7 figures

Scientific paper

A possibility to realize isotropic artificial backward-wave materials is theoretically analyzed. An improved mixing rule for the effective permittivity of a composite material consisting of two sets of resonant dielectric spheres in a homogeneous background is presented. The equations are validated using the Mie theory and numerical simulations. The effect of a statistical distribution of sphere sizes on the increasing of losses in the operating frequency band is discussed and some examples are shown.

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