Abstract
A double-negative (DNG) material based on dielectric particles is experimentally analyzed. The DNG material is assembled using ceramic particles with high dielectric constant, and a conducting wire frame. The ceramic particles contribute to the effective negative permeability thanks to Mie resonance, while the conducting wire frame provides the effective negative permittivity. The measured transmittances are in good agreement with the theoretical prediction. The influence of the particle shape and distribution on the effective negative permeability is also examined experimentally. We show that random distribution of the particles hinders collective response.
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