A new wide-band double-negative metamaterial for C- and S-band applications

Hossain, M.I. and Faruque, M.R.I. and Islam, M.T. and Ullah, M.H. (2015) A new wide-band double-negative metamaterial for C- and S-band applications. Materials, 8 (1). pp. 57-71. ISSN 1996-1944, DOI https://doi.org/10.3390/ma8010057.

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A new design and analysis of a wide-band double-negative metamaterial, considering a frequency range of 0.5 to 7 GHz, is presented in this paper. Four different unit cells with varying design parameters are analyzed to evaluate the effects of the unit-cell size on the resonance frequencies of the metamaterial. Moreover, open and interconnected 2 x 2 array structures of unit cells are analyzed. The finite-difference time-domain (FDTD) method, based on the Computer Simulation Technology (CST) Microwave Studio, is utilized in the majority of this investigation. The experimental portion of the study was performed in a semi-anechoic chamber. Good agreement is observed between the simulated and measured S parameters of the developed unit cell and array. The designed unit cell exhibits negative permittivity and permeability simultaneously at S-band (2.95 GHz to 4.00 GHz) microwave frequencies. In addition, the designed unit cell can also operate as a double-negative medium throughout the C band (4.00 GHz to 4.95 GHz and 5.00 GHz to 5.57 GHz). At a number of other frequencies, it exhibits a single negative value. The two array configurations cause a slight shift in the resonance frequencies of the metamaterial and hence lead to a slight shift of the single-and double-negative frequency ranges of the metamaterial.

Item Type: Article
Funders: Universiti Kebangsaan Malaysia DPP-2014-052 DIP-2014-029
Additional Information: Times Cited: 0 0
Uncontrolled Keywords: C-band; finite-difference time-domain (FDTD) method, double-negative (DNG) metamaterial, metamaterial unit-cell, metamaterial array, S-band
Subjects: T Technology > T Technology (General)
T Technology > TK Electrical engineering. Electronics Nuclear engineering
Divisions: Faculty of Engineering
Depositing User: Mr Jenal S
Date Deposited: 22 Sep 2015 00:10
Last Modified: 22 Sep 2015 00:10
URI: http://eprints.um.edu.my/id/eprint/13870

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