A dual broadband metamaterial absorber with concentric continuous and split rings resonator structure

Agrawal, Alkesh; Misra, Mukul; Singh, Ashutosh Pratap

doi:10.1109/upcon.2016.7894722

Cited by 5 publications

(2 citation statements)

References 15 publications

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“…Additionally, the field profile near the point of highest concentration is noticeably altered due to the presence of the other resonator, further demonstrating the intra-cell coupling between them. The performance of metamaterials as a function of the incidence angle of the source, θ, is also of great interest [3,39,[49][50][51]. In Figure 6, spectral absorption is plotted as θ is swept from 0 • to 70 • .…”

Section: Unit Cell Containing Both a Vsrr And Psrrmentioning

confidence: 99%

Enhancing Absorption Bandwidth through Vertically Oriented Metamaterials

et al. 2019

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Metamaterials research has developed perfect absorbers from microwave to optical frequencies, mainly featuring planar metamaterials, also referred to as metasurfaces. In this study, we investigated vertically oriented metamaterials, which make use of the entire three-dimensional space, as a new avenue to widen the spectral absorption band in the infrared regime between 20 and 40 THz. Vertically oriented metamaterials, such as those simulated in this work, can be experimentally realized through membrane projection lithography, which allows a single unit cell to be decorated with multiple resonators by exploiting the vertical dimension. In particular, we analyzed the cases of a unit cell containing a single vertical split-ring resonator (VSRR), a single planar split-ring resonator (PSRR), and both a VSRR and PSRR to explore intra-cell coupling between resonators. We show that the additional degrees of freedom enabled by placing multiple resonators in a unit cell lead to novel ways of achieving omnidirectional super absorption. Our results provide an innovative approach for controlling and designing engineered nanostructures.

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Section: Unit Cell Containing Both a Vsrr And Psrrmentioning

confidence: 99%

Enhancing Absorption Bandwidth through Vertically Oriented Metamaterials

et al. 2019

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“…Metamaterial absorber is an artificial composite structure which consists of two metal layers of the electric resonator, another side is a ground plane, and the middle is dielectric layer [5]. Split ring resonator is a structure represented electrical circuit about resonance frequency shifted [6] [7], and [8]. In this research, will explain a design and characteristic investigation of structure split ring resonator circular in microwave metamaterial absorber parameter, which means to know about the effect of wide radius characteristic in geometrical circular and also gap width of microwave metamaterial absorber parameter such as resonance frequency absorption rate.…”

Section: Introductionmentioning

confidence: 99%

Design and Investigation of Characteristic Structure Split Ring Resonator Circular of Microwave Metamaterial Absorber Parameter in X-band Frequency

Fahmi¹,

Setijadi²,

Handayani³

2019

IJPS

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This paper explained the design and investigation of the characteristic structure of split ring resonator circular in the parameter of microwave metamaterial absorber in X-band frequency. The result showed that bigger value of inner radius circular geometry obtained the resonance frequency shifted to bigger such as 9.20 GHz to 9.30 GHz, and maximum absorption rate increased from 88.9% to 93,35%. When the inner radius smaller and the outer higher, represented the resonance frequency shifted to lower, 11.13 GHz to 9.94 GHz, and the maximum absorption rate decreased from 85% to 78,27%. In another condition, the lower gap variation affected resonance frequency shifted to lower 9.30 GHz to 9.13 GHz but maximum absorption rate increased 88.64% to 89,2%, thus opposite.

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