Design of 3D broad-band and wide-angle absorber based on resistive metamaterial and magnetic absorbing material

Wang, Aixia; Wang, Binke; Wang, Jiafu; Yan, Mingbao; Li, Yongfeng; Wang, Wenjie; Qu, Shaobo

doi:10.1088/1361-6463/ab5c2a

Cited by 8 publications

(6 citation statements)

References 38 publications

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“…It can be observed that our absorber achieves a larger relative operating bandwidth with less magnetic material compared to all the competing pairs. For example, in [29], although the thickness is reduced by 1 mm compared to our study, the relative operating bandwidth is narrower, and a larger amount of magnetic material is used.…”

Section: Experimental Verificationmentioning

confidence: 71%

A broadband low-profile microwave absorber based on ferromagnetic material doped hybrid stereo metamaterial

Wei,

Wang,

Zhou

et al. 2023

J. Phys. D: Appl. Phys.

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This study introduces a ferromagnetic material-doped hybrid stereo metamaterial absorber that addresses the current limitations in implantation of broadband and low-profile microwave absorbers. This metamaterial combines a ferromagnetic block with a blind via in the center and a standing resistive trapezoidal patch together in one stereo meta-atom to enable a continuous and broad absorption band for 90% absorption rate from 2.3 GHz to 40 GHz, with a thickness only as 0.079 times the maximum working wavelength. The hybrid absorber also exhibits angular stability under oblique incidence and polarization insensitivity. Furthermore, a sample of proposed stereo metamaterial absorber was fabricated and measured. The broadband absorption properties of such hybrid stereo metamaterial were validated by both simulated and experimental results. Our study provides a promising implementation approach for broadband and low-profile microwave absorbers.

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Section: Experimental Verificationmentioning

confidence: 71%

A broadband low-profile microwave absorber based on ferromagnetic material doped hybrid stereo metamaterial

Wei,

Wang,

Zhou

et al. 2023

J. Phys. D: Appl. Phys.

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“…Among them, magnetic structural absorbers are the most studied. [14,15] However, dielectric structural absorbers attract increasing attention due to their unique advantages, such as a wider range of applicable material systems, which will help to expand the scope of application while reducing costs. [16] Meng et al proposed a dielectric absorber based on carbon black (CB) and BaTiO 3 (BT) nanoparticles embedded into polyvinylidene fluoride (PVDF) that were prepared using a simple blending and hot-moulding technique.…”

Section: Introductionmentioning

confidence: 99%

A pure dielectric metamaterial absorber with broadband and thin thickness based on a cross-hole array structure

Cao¹,

Wen²,

Jiang³

et al. 2022

Chinese Phys. B

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In this work, a pure dielectric metamaterial absorber with broadband and thin thickness is proposed, whose structure is designed as periodic cross hole array. The pure dielectric metamaterial absorber with high permittivity is prepared by ceramic reinforced polymer composites. Compared with ones with low permittivity, the absorber with high permittivity is more sensitive to structural parameters, which means that it is easier to optimize equivalent electromagnetic parameter and achieve wide impedance matching by altering the size or shape of unit cell. The optimized metamaterial absorber exhibits the reflection loss below -10 dB in 7.93~35.76 GHz with a thickness of 3.5 mm, which shows favorable absorption property under the oblique incidence of TE polarization (±45°). Whether it is measured or simulated value, the strongest absorbing peak reaches below -45 dB, which exceeds that of most metamaterial absorber. The distributions of power loss density, electric and magnetic field are proposed to study the origin of their strong absorbing property. Multiple resonance mechanisms are developed to explain the phenomenon, including polarization relaxation of dielectric and edge effect of the cross-hole array. This work overcome the shortcoming of narrow absorbing bandwidth of dielectric. It demonstrates that the pure dielectric metamaterial absorber with high permittivity has great potential in the field of microwave absorption.

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“…Some metal-dielectric-metal structure can show certain wide angle absorption for its strong resonance, but this is still not demand. To enhance the wide-angle absorption, a series of three-dimensional (3D) metamaterial structures [20][21][22][23][24][25][26] were therefore proposed, which aimed to achieve better performance. Some researchers using 3D metal/dielectric structure can obtain the wide-angle impedance match though, those results were limited to 60 • .…”

Section: Introductionmentioning

confidence: 99%

Design and analysis of a wideband and wide angle 3D metamaterial absorber

Wang¹,

Wang²,

Liang³

et al. 2022

J. Phys. D: Appl. Phys.

Self Cite

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In this paper, we proposed a three-dimensional(3D) metamaterial absorber joint by lightweight 3D grid structure and traditional magnetic materials, which can achieve wideband and wide-angle perfect absorption at 5 GHz - 20 GHz. By simulation, the broadband absorption remained almost 90% from 0° to 80° for TM wave. The surface current and power loss distributions were investigated to interpret the physical mechanism of wideband and wide-angle absorption. The broadband and wide-angle absorption were derived from magnetic and electric resonances between the top resistive film, background plane and magnetic loss of magnetic materials. The results proved that different layers of the proposed absorber play different loss roles, and finally contributed to the wideband and larger angle absorption. The polarization insensitive stability of the proposed absorber was also demonstrated at different polarized angles. The present study provided a new design to achieve a polarization insensitive, wideband and wide-angle absorber. Moreover, the structure absorber has potential applications in other fields, including the solar cell, imaging and detection etc.

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Design of 3D broad-band and wide-angle absorber based on resistive metamaterial and magnetic absorbing material

Cited by 8 publications

References 38 publications

A broadband low-profile microwave absorber based on ferromagnetic material doped hybrid stereo metamaterial

A broadband low-profile microwave absorber based on ferromagnetic material doped hybrid stereo metamaterial

A pure dielectric metamaterial absorber with broadband and thin thickness based on a cross-hole array structure

Design and analysis of a wideband and wide angle 3D metamaterial absorber

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