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Open Access A compact meander line elliptic split ring resonator based metamaterial for electromagnetic shielding

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A miniatured NRI metamaterial comprised of meander line and elliptical split ring resonator is presented in this paper, offering a negative refractive index with small unit to wavelength ratio. The meander line technique miniatures the cell size, where the elliptical split ring resonator give the desired permeability. It has two double negative regime one is from 2.46 to 3.31 GHz (bandwidth of 850 MHz) and another one is from 3.85 to 4 GHz (bandwidth of 150 MHz). An effective medium ratio of 12.86, implies the novelty of the proposed design for S-band applications. The electrical length of the structure is 0.06λ×0.07λ×0.009λ. Moreover, the specific absorption rate is also analyzed on human head phantom. The analysis demonstrates an 35.93% reduction in the SAR value at 2100 MHz. Using negative refractive index metamaterials as a shield, the human body can be protected from electromagnetic radiations.

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Keywords: EFFECTIVE MEDIUM RATIO; ELLIPTICAL RING RESONATOR; LEFT-HANDED METAMATERIAL; MEANDER LINE; SPECIFIC ABSORPTION RATE

Document Type: Research Article

Publication date: April 1, 2018

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  • Materials Express is a peer-reviewed multidisciplinary journal reporting emerging researches on materials science, engineering, technology and biology. Cutting-edge researches on the synthesis, characterization, properties, and applications of a very wide range of materials are covered for broad readership; from physical sciences to life sciences. In particular, the journal aims to report advanced materials with interesting electronic, magnetic, optical, mechanical and catalytic properties for industrial applications.
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