Constitutive parameter analysis of left-handed dual-star split-ring resonator metamaterial for homogeneous infinite slab

Mohammad Habib Ullah, Md Jasim Uddin, Tarik Abdul Latef, Wan Nor Liza Mahadi, Md Rezwanul Ahsan, Mohammad Tariqul Islam

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

A new shaped backward wave periodic dual-star split-ring resonator (DSSRR) is proposed based on the equivalent transmission line theory. The proposed artificial DSSRR design structure produces a wide band from 7.5 to 9.5 GHz, and very high rejection (47 dB) with sharp cut-offs in the forbidden band. To ensure the retrieval of electromagnetic parameters, primarily a single unit cell is considered. Then, the periodic four unit cells are decomposed to investigate the excitation metamaterial properties. The constitutive properties of the dispersion diagram exhibited very unusual characteristics and separated into different directions in balanced and unbalanced conditions in order to excite propagation in different modes. The dispersion of left-handedness group velocity exhibits the parallel direction of the poynting vector and high gain in higher frequency regions, whereas the phase velocity demonstrates the anti-parallel direction of the poynting vector obtained from the resonance frequency regions. The overall electromagnetic parameters of negative dielectric constant, resonance permeability, anti-parallel phase and group velocity, and refractive index confirm that the proposed periodic DSSRR artificial structure to be the most suitable for metamaterial behaviour and characteristics.

Original languageEnglish
Pages (from-to)1740-1746
Number of pages7
JournalIET Microwaves, Antennas and Propagation
Volume9
Issue number15
DOIs
Publication statusPublished - 10 Dec 2015

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Metamaterials
Stars
Resonators
Transmission line theory
Phase velocity
Refractive index
Permittivity

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

Cite this

Constitutive parameter analysis of left-handed dual-star split-ring resonator metamaterial for homogeneous infinite slab. / Ullah, Mohammad Habib; Uddin, Md Jasim; Latef, Tarik Abdul; Mahadi, Wan Nor Liza; Ahsan, Md Rezwanul; Islam, Mohammad Tariqul.

In: IET Microwaves, Antennas and Propagation, Vol. 9, No. 15, 10.12.2015, p. 1740-1746.

Research output: Contribution to journalArticle

Ullah, Mohammad Habib ; Uddin, Md Jasim ; Latef, Tarik Abdul ; Mahadi, Wan Nor Liza ; Ahsan, Md Rezwanul ; Islam, Mohammad Tariqul. / Constitutive parameter analysis of left-handed dual-star split-ring resonator metamaterial for homogeneous infinite slab. In: IET Microwaves, Antennas and Propagation. 2015 ; Vol. 9, No. 15. pp. 1740-1746.
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