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A New Wide-Band Double-Negative Metamaterial for C- and S-Band Applications
Materials (2015)
Abstract

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. Link to Full-Text Articles : http://www.mdpi.com/1996-1944/8/1/57/htm

Keywords
  • C-band; finite-difference time-domain (FDTD) method,
  • double-negative (DNG) metamaterial,
  • metamaterial unit-cell,
  • metamaterial array,
  • S-band
Disciplines
Publication Date
January, 2015
Publisher Statement
Times Cited: 0 0
Citation Information
"A New Wide-Band Double-Negative Metamaterial for C- and S-Band Applications" Materials Vol. 8 Iss. 1 (2015)
Available at: http://works.bepress.com/facultyofengineering_universityofmalaya/136/