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      Metamaterial particles for electromagnetic energy harvesting

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      Applied Physics Letters
      AIP Publishing

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          A Perfect Metamaterial Absorber

          We present the design for an absorbing metamaterial element with near unity absorbance. Our structure consists of two metamaterial resonators that couple separately to electric and magnetic fields so as to absorb all incident radiation within a single unit cell layer. We fabricate, characterize, and analyze a metamaterial absorber with a slightly lower predicted absorbance of 96%. This achieves a simulated full width at half maximum (FWHM) absorbance of 4% thus making this material ideal for imaging purposes. Unlike conventional absorbers, our metamaterial consists solely of metallic elements. The underlying substrate can therefore be chosen independently of the substrate's absorptive qualities and optimized for other parameters of interest. We detail the design and simulation process that led to our metamaterial, and our experiments demonstrate a peak absorbance greater than 88% at 11.5 GHz.
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            Equivalent-circuit models for split-ring resonators and complementary split-ring resonators coupled to planar transmission lines

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              Comparative analysis of edge- and broadside-coupled split ring resonators for metamaterial design - Theory and experiments

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                Author and article information

                Journal
                Applied Physics Letters
                Appl. Phys. Lett.
                AIP Publishing
                0003-6951
                1077-3118
                October 22 2012
                October 22 2012
                : 101
                : 17
                : 173903
                Article
                10.1063/1.4764054
                55be9293-4834-4508-99be-ce4b7b12b010
                © 2012
                History

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