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Dispersion and Reflection Properties of Artificial Media Formed By Regular Lattices of Ideally Conducting Wires

2002; Taylor & Francis; Volume: 16; Issue: 8 Linguagem: Inglês

10.1163/156939302x00688

1569-3937

Pavel A. Belov, Sergei Tretyakov, A.J. Viitanen,

Electromagnetic Scattering and Analysis

An analytical theory of electromagnetic waves in artificial media formed by a rectangular lattice of thin ideally conducting cylinders using the local field approach is developed. As a result, the transcendental dispersion equation is obtained in closed form and solved numerically. Typical dispersion curves are calculated. Using these results, the reflection problem from an interface between a half space of wire medium and free space is solved for plane-wave excitation. In the low-frequency approximation a simple analytical formula for the frequency dependent effective dielectric permittivity is established.