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

Md Ikbal Hossain, Mohammad Rashed Iqbal Faruque, Mohammad Tariqul Islam, Mohammad Habib Ullah

Research output: Contribution to journalArticle

30 Citations (Scopus)

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 × 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.

Original languageEnglish
Pages (from-to)57-71
Number of pages15
JournalMaterials
Volume8
Issue number1
DOIs
Publication statusPublished - 2015

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Metamaterials
Anechoic chambers
Finite difference time domain method
Microwave frequencies
Studios
Scattering parameters
Permittivity
Microwaves
Computer simulation

Keywords

  • C-band
  • Double-negative (DNG) metamaterial
  • Finite-difference time-domain (FDTD) method
  • metamaterial array
  • Metamaterial unit-cell
  • S-band

ASJC Scopus subject areas

  • Materials Science(all)

Cite this

A new wide-band double-negative metamaterial for C- and S-band applications. / Hossain, Md Ikbal; Faruque, Mohammad Rashed Iqbal; Islam, Mohammad Tariqul; Ullah, Mohammad Habib.

In: Materials, Vol. 8, No. 1, 2015, p. 57-71.

Research output: Contribution to journalArticle

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