Subwavelength operating metamaterial for multiband applications

Microw. Opt. Technol. Lett.

Islam

2017

A single layer negative index meta atom is described that is developed by an outer and inner split ring resonators with inverse E‐shape metal strips of copper are connected with the outer ring resonator that look like a mirror‐shape structure. Finite integration technique based CST Microwave Studio is utilized to design, simulation and analysis purposes, where the Agilent N5227A vector network analyzer is used for measurement. Measurements shows that, the measured and simulated performances are well complied together. This design illustrates 5.81 GHz wide bandwidth and applicable for tri (C‐, X‐ and Ku‐) band applications. The total dimensions of the designed structure are 0.2λ × 0.2λ × 0.035λ and the effective medium ratio 5 makes the proposed biaxial meta atom is suitable for practical applications. © 2017 Wiley Periodicals, Inc. Microwave Opt Technol Lett 59:1450–1454, 2017

“…Moreover, Ref. bandwidth enlarged only 42.9% and but applicable for the S‐, C‐, and X‐band operations.…”

Section: Results Analysismentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

A single layer negative index meta atom at microwave frequencies

Hasan

Microw. Opt. Technol. Lett.

Islam

2017

“…The comparison parameters of the metamaterial have been considered here are the size of the unit cell and e ective medium ratio. The miniaturization of the metamaterials has been shown in [12,14], and [15]. Additionally, the mentioned metamaterials cannot preserve higher EMR.…”

Section: Role Of the Resonator Width (C) Of Meta-atommentioning

confidence: 99%

“…A new dual band metamaterial unit-cell construction was proposed in [14] with EMR 7.14 but they argumented single negative property for their dual band operation. Hossain et al in [15] depicted a double negative (DNG) metamaterial of compact size with 7.44 EMR, but they utilised normal incidence of electromagnetic wave propagation for their analysis.…”

Section: Introductionmentioning

confidence: 99%

A new miniaturized negative-index meta-atom for tri-band applications

Hossain

Abdullah³

et al. 2017

Open Physics

Abstract:In this paper, a miniature negative index metaatom was designed; simulated, fabricated and measured based on parallel incidence of electromagnetic wave that can maintain a tri-band applications in microwave spectra. Compare to the other multi-band conventional metamaterial, the proposed meta-atom structure allows miniaturization factor and follows better e ective medium ratio (EMR). Finite-integration technique (FIT) based computer simulation technology (CST) electromagnetic simulator was adopted to examine the design of the metaatom. It exhibits tri-band response in conjunction with backward wave property over a certain frequency band in the microwave regime. Furthermore, the e ective medium ratio is considerably improved compared to previously reported metamaterial. Moreover, few parametric analyses were done with the meta-atom. The size, scattering parameters and e ective medium parameters of the proposed negative index miniaturized meta-atom is appropriate for tri-band applications.

“…Moreover, the design of unit‐cell of metamaterial was very large in size and the effective medium ratio was less than standard value. In subwavelength operating negative index metamaterial analyzed was proposed for multiband applications, whereas the size of the metamaterial was large and the EMR was 7.44. A new dual band metamaterial unit‐cell construction was proposed in with EMR 7.14 but they argument single negative property for their dual‐band operation.…”

Section: Introductionmentioning

confidence: 99%

An effective medium ratio following miniaturized concentric meta-atom for S- and C-band applications

Hossain

Microw. Opt. Technol. Lett.

Islam

2017

In this paper, a new effective medium ratio following miniaturized meta‐atom structure designed, fabricated and measured for dual‐band that has multiple circular concentric metal rings printed one inside the other. The each ring of meta‐atom structure delivers a magnetic resonance at different frequencies. The number of concentric ring resonator has created same number of resonances. A different analysis has been performed to verify distinct resonance frequencies, effective medium ratio and electromagnetic transmission properties simply by altering the design parameters. Computer simulation technology (CST) electromagnetic simulator which is commercially available is utilized to investigate the design of the meta‐atom. The dual‐band response has been displayed of the meta‐atom in conjunction with negative index material property over the certain span in the microwave regime. The proposed structure has become suitable for S‐ and C‐band applications and has achieved efficient electrically small microwave structure. © 2017 Wiley Periodicals, Inc. Microwave Opt Technol Lett 59:1233–1240, 2017