Antenna gain and directivity improvement by using metamaterial unit-cell inspired in superstrate with zero refractive index

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M. ELHABCHI, M.N SRIFI, R. TOUAHNI

Abstract. In this paper, a Zero Index Metamaterial (ZIM) is proposed for antenna gain and directivity enhancement. This ZIM is developed, characterized and employed for elliptical UWB operating on the frequency range 3.1Ghz-20GHz. The unique property of the metamaterial gathers the wave radiated from the antenna and collimates it towards the normal direction when used as a superstrate, the effective permittivity and permeability of the (ZIM) are designed to synchronously approach zero. This leads the ZIM to having an effective wave impedance matching with air and near-zero index simultaneously

Keywords
Zero Index Metamaterial (ZIM), UWB Elliptical Antenna, Antenna Gain, Antenna Directivity, Effective Permittivity, Effective Permeability

Published online 12/10/2016, 3 pages
Copyright © 2016 by the author(s)
Published under license by Materials Research Forum LLC., Millersville PA, USA
Citation: M. ELHABCHI, M.N SRIFI, R. TOUAHNI, ‘Antenna gain and directivity improvement by using metamaterial unit-cell inspired in superstrate with zero refractive index’, Materials Research Proceedings, Vol. 1, pp 190-192, 2016
DOI: http://dx.doi.org/10.21741/9781945291197-48

The article was published as article 48 of the book Dielectric Materials and Applications

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