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Effects of mutual coupling in dual-resonance metamaterials

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 نشر من قبل Withawat Withayachumnankul
 تاريخ النشر 2011
  مجال البحث فيزياء
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This Letter presents an investigation on the effects of mutual coupling in a metamaterial comprising two sets of electric-LC (ELC) resonators with different resonance frequencies. Through simulation and experiment, it is found that the two resonances experience significant shifting and weakening as they become spectrally close. An equivalent circuit model suggests that inductive coupling among the two resonator sets is a primary cause of the change in the resonance properties. This study is fundamental to designing metamaterials with an extended bandwidth or spatially variable response.



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