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This letter investigates a metamaterial composed of ring resonators that are randomly distributed in space both in their positions and their orientation. Such metamaterial behaves as an amorphous material with isotropic response. The main problem of the fabrication of this material is the spread of resonant frequencies of particular planar ring resonators. This spread is caused by tolerances of the...
A homogenization procedure aimed at analyzing a metamaterial designed as a system composed of point magnetic dipoles is presented in this paper. These dipoles represent broad side coupled split ring resonators and/or conducting loops terminated by capacitors. A non-precise fabrication process causes dispersion of the geometrical and material parameters of the resonators, and thus dispersion of their...
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