A New Wide-Band Double-Negative Metamaterial for C- and S-Band Applications
AbstractA 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 × 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. View Full-Text
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Hossain, M.I.; Faruque, M.R.I.; Islam, M.T.; Ullah, M.H. A New Wide-Band Double-Negative Metamaterial for C- and S-Band Applications. Materials 2015, 8, 57-71.
Hossain MI, Faruque MRI, Islam MT, Ullah MH. A New Wide-Band Double-Negative Metamaterial for C- and S-Band Applications. Materials. 2015; 8(1):57-71.Chicago/Turabian Style
Hossain, Md I.; Faruque, Mohammad R.I.; Islam, Mohammad T.; Ullah, Mohammad H. 2015. "A New Wide-Band Double-Negative Metamaterial for C- and S-Band Applications." Materials 8, no. 1: 57-71.