A new compact double-negative miniaturized metamaterial for wideband operation

Md Mehedi Hasan, Mohammad Rashed Iqbal Faruque, Sikder Sunbeam Islam, Mohammad Tariqul Islam

Research output: Contribution to journalArticle

37 Citations (Scopus)

Abstract

The aim of this paper is to introduce a compact double-negative (DNG) metamaterial that exhibits a negative refractive index (NRI) bandwidth of more than 3.6 GHz considering the frequency from 2 to 14 GHz. In this framework, two arms of the designed unit cell are split in a way that forms a Modified-Z-shape structure of the FR-4 substrate material. The finite integration technique (FIT)-based Computer Simulation Technology (CST) Microwave Studio is applied for computation, and the experimental setup for measuring the performance is performed inside two waveguide ports. Therefore, the measured data complies well with the simulated data of the unit cell at 0-degree and 90-degree rotation angles. The designed unit cell shows a negative refractive index from 3.482 to 7.096 GHz (bandwidth of 3.61 GHz), 7.876 to 10.047 GHz (bandwidth of 2.171 GHz), and 11.594 to 14 GHz (bandwidth of 2.406 GHz) in the microwave spectra. The design also exhibits almost the same wide negative refractive index bandwidth in the major region of the C-band and X-band if it is rotated 90 degrees. However, the novelty of the proposed structure lies in its effective medium ratio of more than 4, wide bandwidth, and compact size.

Original languageEnglish
Article number830
JournalMaterials
Volume9
Issue number10
DOIs
Publication statusPublished - 13 Oct 2016

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Metamaterials
Bandwidth
Refractive index
Microwaves
Studios
Waveguides
Computer simulation
Substrates

Keywords

  • Double-negative metamaterial
  • Dual band
  • Effective medium ratio
  • Wide bandwidth

ASJC Scopus subject areas

  • Materials Science(all)

Cite this

A new compact double-negative miniaturized metamaterial for wideband operation. / Hasan, Md Mehedi; Faruque, Mohammad Rashed Iqbal; Islam, Sikder Sunbeam; Islam, Mohammad Tariqul.

In: Materials, Vol. 9, No. 10, 830, 13.10.2016.

Research output: Contribution to journalArticle

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