A broadband negative refractive index meta-atom for quad-band and sensor applications

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

A new modified hexagonal design structure with broadband-negative refractive index metamaterial was proposed in this manuscript. The proposed structure was composed of two symmetrical metallic layers which had same thickness and an FR4 dielectric layer that was sandwiched between these metallic layers. Frequency domain solver of CST microwave studio, which is commercially available was utilized to observe the results of the design structure. The design structure was analyzed by two orientations with respect to the incident plane wave. For normal wave incidence, the suggested structure displays broadband negative refractive index (3.18 GHz) and (0.9 GHz) with a higher effective medium ratio (17.26) that was indicated small electrical size of the structure, whereas for parallel wave incidence, broadband negative refractive index (2.45 GHz), (1.22 GHz), and (1.93 GHz) bandwidth with a higher effective medium ratio (28.01) was obtained. The negative refractive index was verified by simulation and measurement for quad-band applications. Furthermore, the effective medium ratio (λ/a) of the proposed broadband negative refractive index metamaterial was considerably improved compared to previous suggested multiband metamaterials. In addition, the design structure can also be utilized as a pressure sensor.

Original languageEnglish
Pages (from-to)2899-2907
Number of pages9
JournalMicrowave and Optical Technology Letters
Volume60
Issue number12
DOIs
Publication statusPublished - 1 Dec 2018

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Refractive index
refractivity
broadband
Metamaterials
Atoms
sensors
Sensors
atoms
incidence
Studios
Pressure sensors
pressure sensors
plane waves
Display devices
Microwaves
Elvitegravir, Cobicistat, Emtricitabine, Tenofovir Disoproxil Fumarate Drug Combination
bandwidth
Bandwidth
microwaves
simulation

Keywords

  • broadband
  • double-incident
  • effective medium ratio
  • meta-atom
  • negative refractive index
  • pressure sensor
  • quad-band

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Condensed Matter Physics
  • Electrical and Electronic Engineering

Cite this

A broadband negative refractive index meta-atom for quad-band and sensor applications. / Hossain, Mohammad J.; Faruque, Mohammad Rashed Iqbal; Alam, M. J.; Mansor, Mohd Fais; Islam, Mohammad Tariqul.

In: Microwave and Optical Technology Letters, Vol. 60, No. 12, 01.12.2018, p. 2899-2907.

Research output: Contribution to journalArticle

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