Triple‐band polarization‐insensitive metamaterial absorber with low profile

Wu, Ting; Zee, Y.; Chen, Juan; Wang, Lili

doi:10.1002/mmce.22314

Cited by 7 publications

(6 citation statements)

References 33 publications

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“…This indicates that the designed absorber is polarization insensitive. In [15], a triple band polarization insensitive metamaterial absorber was designed. Its structure comprises of two modified square rings and microstrips act as resonator layer, Fr-4 dielectric substrate and copper ground plane.…”

Section: Ementioning

confidence: 99%

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A Review on Electromagnetic Metamaterial Absorbers

Viji,

Anujan

2023

2023 International Conference on Control, Communication and Computing (ICCC)

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Metamaterials are artificially engineered materials that possess properties that are not present naturally. They show some specific properties such as negative refractive index, negative permittivity, negative permeability and left hand behavior. Metamaterial absorbers have greater attention in nowadays because of its ability to absorb incident electromagnetic radiation. The structure consists of resonator layer, dielectric substrate and metallic ground plane. They are applicable in radar cross section reduction (RCS), energy harvesting, electromagnetic shielding and refractive index sensing. In this paper, various metamaterial absorbers and their applications are reviewed. Initially the theory and working of metamaterial absorbers are discussed. Several multiband absorbers and their absorptivity are then presented. Next, the review focuses on several broadband absorbers and polarization insensitive absorbers. By using these metamaterial absorbers, we can make near-unity absorption.

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Section: Ementioning

confidence: 99%

“…Besides multiband metamaterial absorbers, researchers were also focused on broadband metamaterial absorbers [12]- [13]. Later they focused on polarization insensitivity and designed multiband polarization insensitive absorbers [14]- [15].…”

Section: Introductionmentioning

confidence: 99%

A Review on Electromagnetic Metamaterial Absorbers

Viji,

Anujan

2023

2023 International Conference on Control, Communication and Computing (ICCC)

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“…Recently, the metamaterial absorbers (MMAs) with artificial subwavelength periodic structures have received great interest due to their excellent designability characteristics. [18][19][20][21] The constitutive parameters of MMAs can be designed with attractive quality, and these parameters can be independently controlled in a wide range beyond the scope of traditional natural materials, to meet the impedance matching between MMAs and free space. 22,23 In recent years, various MMAs have been extensively proposed.…”

Section: Introductionmentioning

confidence: 99%

Ultrathin optically transparent electromagnetic shielding window with broadband microwave absorption and ultrahigh optical transmittance

Liu

Jiang

et al. 2022

Int J RF Mic Comp-Aid Eng

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In this work, we propose an optically transparent metamaterial absorber (OTMMA) based electromagnetic interference shielding window with broadband microwave absorption and ultrahigh optical transmittance. Such a window with relative thickness of λ 0 /21.4 at the lowest frequency consists of a three-layer structure in which two indium-tin-oxide films with different patterns are etched on the upper and lower surfaces of a glass substrate. The specific design feature realizes more than 90% microwave absorption covering a wide frequency range of 7.84-12.35 GHz and makes the window insensitive to the incident angle and polarization state of the incident microwave. Importantly, the measured shielding effectiveness

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“…1,2 The involvement of metamaterial absorber in various applications motivated researchers for further improvement in design and paved the way for increasing the absorption value of single and multiband metamaterial based microwave absorber. [3][4][5][6][7][8][9][10] The researchers have investigated metamaterial-based single band absorbers, [3][4][5] dual-band absorbers, 6,7 and multi-band absorbers. [8][9][10] The research domain further gets extended with the quest for wideband and ultra-wideband (UWB) absorption.…”

Section: Introductionmentioning

confidence: 99%

“…[3][4][5][6][7][8][9][10] The researchers have investigated metamaterial-based single band absorbers, [3][4][5] dual-band absorbers, 6,7 and multi-band absorbers. [8][9][10] The research domain further gets extended with the quest for wideband and ultra-wideband (UWB) absorption. The destination of near-perfect absorption is achieved in single, dual or multiband but to achieve a high absorption rate in wideband and UWB is a distant dream.…”

Section: Introductionmentioning

confidence: 99%

Design and analysis of a compact ultrathin ultra‐wideband metamaterial absorber with near to unity absorption for Ku ‐band

Puri

Singh

2022

Int J RF Mic Comp-Aid Eng

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The proposed work intend to develop a compact ultrathin ultra-wideband (UWB) metamaterial absorber with a feature of near to unity absorption. The proposed absorber is identified by one consolidated patch in combination with L-shaped patches. The proposed absorber provides more than 97% absorption from 13.6 to 18.5 GHz, the operating band of the absorber is ultra-wide with a bandwidth of 4.9 GHz. The proposed structure exhibits full width half maximum (FWHM) of approximately 6.6 GHz from 12.5 to 19.1 GHz. The design of the structure is having a thickness of 0.072 λ 0 relative to the lowest frequency (at 13.58 GHz) of the UWB. The structure with compact size (9 mm Â 9 mm Â 1.6 mm) compensates for the marginal rise in dimension with ultra-wideband absorption having an absorptivity of above 97% in comparison to existing UWB absorber available in commercially exploitable microwave frequency. The evolution process incorporates incremental changes in the design of the absorber thereby witnessing experimentally verified more than 97% absorptivity. The in-depth analysis of the proposed structure is done with incident and polarisation angle analysis. The current and field distribution validates the effectiveness of the UWB metamaterial based microwave absorber.

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Triple‐band polarization‐insensitive metamaterial absorber with low profile

Cited by 7 publications

References 33 publications

A Review on Electromagnetic Metamaterial Absorbers

A Review on Electromagnetic Metamaterial Absorbers

Ultrathin optically transparent electromagnetic shielding window with broadband microwave absorption and ultrahigh optical transmittance

Design and analysis of a compact ultrathin ultra‐wideband metamaterial absorber with near to unity absorption for Ku ‐band

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