A polarization insensitive and broadband metamaterial absorber based on three-dimensional structure

Tang, Jingyao; Xiao, Zhongyin; Xu, Kaikai; Liu, Dejun

doi:10.1016/j.optcom.2016.04.014

Cited by 32 publications

(9 citation statements)

References 29 publications

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“…A 3D MMA consisting of resistive films and copper was designed, for normal incidence polarization, covering the 58.6-91.4 GHz frequency band. However, the design was complex and needed very careful precision while fabricating [79]. Another multilayered, 3D structure was proposed by Ling et al [49] which consisted of six resistive films placed on the ground plane.…”

Section: D Absorbersmentioning

confidence: 99%

Broadband millimeter-wave absorbers: a review

Choudhary

Pal

Sarkhel

2022

Int. J. Microw. Wireless Technol.

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This paper reports an exhaustive review of recent research progress in the development of millimeter-wave absorbers. With the advancement in technologies, microwave absorbers have shown their evolution in several applications such as defense, security identification, stealth technology, and several more. The importance of these absorbers is increasing due to electromagnetic interference (EMI) effects. Primarily, an abundant amount of absorbers has been developed in lower frequency bands and with the increasing demand for 5G technology, the usage of millimeter-wave bands has gained attention. This in turn requires the development of millimeter-wave absorbers to provide EMI shielding in several applications. Out of several materials, polymers have grabbed attention in the mitigation of EMI. An absorber that combines carbonaceous elements with polymers offers large design flexibility and tunability per the filler concentration. This paper focuses on the classification of these absorbers based on geometry as well as that by using polymers with their design challenges, merits, and demerits with their industrial applications. Comparative studies of geometrically based absorbers and polymeric-based absorbers are also shown.

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Section: D Absorbersmentioning

confidence: 99%

Broadband millimeter-wave absorbers: a review

Choudhary

Pal

Sarkhel

2022

Int. J. Microw. Wireless Technol.

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“…Considering the practical applications such as stealth in military and civil areas, the absorbers should have broad-band and wide-angle absorption simultaneously. Several methods have been proposed to realize broad-band absorption, for example, combining multiple resonators in a single layer [23], loading lumped elements [9,10], using resistive films [8,14,28], building three dimensional (3D) structures [15,24,25,[30][31][32][33][34][35][36][37][38], the combinational use of plasma medium and graphene sheets [29], introducing spoof surface plasmon polaritons structures [14,28] and metasurfaces [27]. Recently, Nguyen et al proposed a MA with lumped resistor loaded fan-shaped resonator [26].…”

Section: Introductionmentioning

confidence: 99%

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

Wang

et al. 2019

J. Phys. D: Appl. Phys.

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A 3D broad-band and wide-angle absorber (3D BWA) was designed through a 3D resistive metamaterial in which a traditional magnetic absorbing material was added on top of the metallic backplane. Owing to the better magnetic loss performance of the magnetic absorber at lower frequencies and superior impedance matching effect and ohmic loss property of the resistive films at higher frequencies, the absorption can be extended to a wider band through their combination. Simulation result shows that the absorption of the 3D BWA is more than 90% in the frequency range of 3.7-40 GHz at normal incidence, and it is in accordance with the experimental result. The absorption performance for each part of the 3D BWA was analyzed using electric field and magnetic field distributions, surface current distributions and Smith chart. For TE polarized waves of 3.7-40 GHz, the absorption with the incident angles of 0°-60° is more than 77%. The absorption higher than 80% can be achieved under TM polarized waves of 4.2-40 GHz as the incident angle changes from 0° to 60°. When the incident angle is 70°, the absorption is greater than 85% in the frequency range of 5.7-40 GHz. Owing to the four-fold rotationally symmetric unit cell structure, the absorption spectrum under different polarization angles remains unchanged. These two characteristics make the designed absorber a good candidate in stealth applications.

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“…The absorption spectrum can be adjusted in terms of absorption strength and bandwidth and can expand the range of many practical device applications. So, a number of techniques have been proposed over the past years to design the absorption of materials, examples of which include metamaterials, ultrathin semiconductors, coherent absorption and plasmonic perfect absorber [1,2,3,4,5,6,7,8,9,10,11,12].…”

Section: Introductionmentioning

confidence: 99%

A Designed Broadband Absorber Based on ENZ Mode Incorporating Plasmonic Metasurfaces

Dang

Lee

et al. 2019

Micromachines

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In this paper, we present a numerical study of a metamaterial absorber that provides polarization-insensitive absorption over a broad bandwidth of operation over the mid-infrared region. The absorber consists of a periodically patterned metal-dielectric-metal structure integrated with an epsilon-near-zero (ENZ) nanolayer into the insulating dielectric gap region. Such an anomalous broadband absorber is achieved thanks to a couple of resonant modes including plasmon and ENZ modes that are excited under mid-IR light illumination. By adding a 0.06-μm-thick ENZ layer between the patterned gold rectangular grating and the SiO2 dielectric layer, the absorber captures >95% light over a 1.5 µm bandwidth centered at a near-8-μm wavelength over a wide range of oblique incidence under transverse-magnetic and -electric polarizations. The designed ENZ-based wideband absorber has potential for many practical applications, including sensing, imaging and solar energy harvesting over a wide frequency regime.

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A polarization insensitive and broadband metamaterial absorber based on three-dimensional structure

Cited by 32 publications

References 29 publications

Broadband millimeter-wave absorbers: a review

Broadband millimeter-wave absorbers: a review

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

A Designed Broadband Absorber Based on ENZ Mode Incorporating Plasmonic Metasurfaces

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