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Study of Metamaterials on Physics and Engineering

Author : Manish Kumar, Gauri Shankar and N.K.Singh

Pages : 1003-1006
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The metamaterials are artificially engineered structures with unusual electromagnetic properties. In this paper, we review the implementation of isotroper metamaterials that exhibit a negative permittivity and a negative permeability, thus leading to a negative index of refraction. Specifically, the paper focuses on transmission line metamaterials which are planar structures comprising a network of distributed transmission lines loaded periodical with inductors L capacitor C, in high pass configuration. The periodic unit cell is much smaller than the wavelength, thus leading to an effective medium in which the lumped loading elements can be either discrete or printed. Based on such negative-refractive-index transmission line metamaterials, several fundamental properties of physical sciences and engineering based microwave devices having broadband properties are explained.

Keywords: Metamaterials, permittivity, permeability, composite materials, negative index material, negative refraction, lenses, microwave phase shifters, microwave broadband antenna and microwave balun.

Article published in International Journal of Current Engineering and Technology, Vol.7, No.3 (June-2017)

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