Design, Fabrication, and Characterization of a Flexible Dual-Band Metamaterial Absorber

Wang, Xin; Zhang, Binzhen; Wang, Wanjun; Wang, Junlin; Duan, Junping

doi:10.1109/jphot.2017.2722010

Cited by 50 publications

(22 citation statements)

References 38 publications

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“…However, the multilayer structure remains truly challenging. Therefore, many efforts have been carried out to find a simple MA structure having both wide bandwidth and good absorption performance for practical applications, e.g., single layer of L-shape 9 , modified L-shape 10,11 and circular split rings 12,13 structures as recently reported. Recently, loading with lumped elements on top surface of MA is proposed to extend the absorption band of such MAs 14–17 .…”

Section: Introductionmentioning

confidence: 99%

RETRACTED ARTICLE: Facile design of an ultra-thin broadband metamaterial absorber for C-band applications

Hòa

Tuan

Hieu

et al. 2019

Sci Rep

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We report a facile design of an ultra-thin broadband metamaterial absorber (MA) for C-band applications by utilizing a single layer of a metal-dielectric-metal structure of FR-4 substrate. The absorption performances are characterized using a numerical method. The proposed MA exhibits the broadband absorption response over the entire C-band spectrum range from 4.0 GHz to 8.0 GHz with absorptivity above 90% and the high absorptivity is remained over 80% for a large incident angle up to 40° under both transverse electric (TE) and transverse magnetic (TM) polarizations over the band. The origin of absorption mechanism is explained by the electric and surface current distributions, which is also supported by the retrieved constitutive electromagnetic parameters, significantly affected by magnetic resonance. In addition, compared with the previous reports, the proposed MA presents a greater practical feasibility in term of low-profile and wide incident angle insensitivity, suggesting that the proposed absorber is a promising candidate for C-band applications.

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Section: Introductionmentioning

confidence: 99%

RETRACTED ARTICLE: Facile design of an ultra-thin broadband metamaterial absorber for C-band applications

Hòa

Tuan

Hieu

et al. 2019

Sci Rep

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show abstract

“…in 2008 1 . Since then, the scientific effort was focused on the design of polarization insensitive and wide-angle 2–8 , tunable 9–11 , flexible 12 , multi-band 13–21 , and wideband electromagnetic absorbers by using 3-dimensional (3D) structures 22–24 , copper traces and chip resistors 25–30 , or resistively loaded patters 31–37 This work is focused on the latter group since usually this group of absorbers exhibit superior performance in terms of bandwidth: it will be shown that, the absorption mechanism in these structures is because of the losses in the resistive parts rather in the dielectrics and that, in turn, leads to wider absorption frequency bandwidth.…”

Section: Introductionmentioning

confidence: 99%

Polarization Insensitive, Wide-Angle, Ultra-wideband, Flexible, Resistively Loaded, Electromagnetic Metamaterial Absorber using Conventional Inkjet-Printing Technology

Assimonis

Fusco

2019

Sci Rep

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A novel, polarization insensitive, wide-angle and broadband electromagnetic metamaterial absorber, which can cover either a flat or a bent geometry, is presented in this work. The periodic geometry has a unit-cell, which consists of four split ring resonators, which are sequentially rotated around the unit-cell axis progressively by 90 deg. First, the metallic parts of the geometry consists of low resistivity copper traces. Next, in order to increase the frequency bandwidth, resistively loaded traces, printed by conventional inkjet printer are used to replace the copper ones. For normal incidence, simulated and measurement results shown that the proposed flat absorber exhibits absorption efficiency higher than 0.8 for 6.9–29.9 GHz (i.e., bandwidth of 125%) regardless of polarization, while the curved absorber for 6.6–29 GHz (i.e., bandwidth of 126%) or for 10.5–29.6 GHz (i.e., bandwidth of 95%), depending the polarization. For oblique incidence and for TE or TM polarized incident wave it presents bandwidth of 118% (7.7–29.9 GHz) or 100.5% (9.9–29.9 GHz), respectively, for an incident angular range of 0–45 deg. Finally, the proposed absorber has thickness of 3.89 mm, corresponding to λ /11.7 at its lowest operation frequency.

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“…Electromagnetic (EM) absorbers are recent trends in the field of antenna design, sensing, electromagnetic clocking, low cross-section materials for radar, and stealth technologies for military purposes and thermo-photovoltaic applications [1][2][3][4][5][6][7][8][9][10][11][12]. A perfect metamaterial (MM) absorber [13] is expected to absorb almost the entire EM signal, with very little or none to be reflected back to the source.…”

Section: Introductionmentioning

confidence: 99%

Design of a Novel Double Negative Metamaterial Absorber Atom for Ku and K Band Applications

et al. 2019

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This paper presents a multiband metamaterial (MM) absorber based on a novel spiral resonator with continuous, dual, and opposite P-shape. The full wave analysis shows 80.06% to 99.95% absorption at frequencies range for Ku and K bands for several substrate materials of 100 mm2 area. The results indicate that the absorption rate remains similar for different polarizing angles in TEM mode with different substrates. With FR4 (Flame Retardant 4) substrate and 64 mm2 ground plane, the design acts as single negative (SNG) MM absorber in K band resonance frequencies (19.75–21.37 GHz) and acts as double negative (DNG) absorber in Ku band resonance frequencies (15.28–17.07 GHz). However, for Rogers 3035 substrate and 36 mm2 ground plane, it acts as an SNG absorber for Ku band resonance frequency 14.64 GHz with 83.25% absorption and as a DNG absorber for K band frequencies (18.24–16.15 GHz) with 83.69% to 94.43% absorption. With Rogers 4300 substrate and 36 mm2 ground plane, it acts as an SNG absorber for Ku band at 15.04 GHz with 89.77% absorption and as DNG absorber for K band frequencies (22.17–26.88 GHz) with 92.87% to 93.72% absorption. The design was fabricated with all three substrates and showed quite similar results as simulation. In comparison with other broadband absorbers, this proposed MM absorber illustrated broad incidence angles in TEM mode.

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Design, Fabrication, and Characterization of a Flexible Dual-Band Metamaterial Absorber

Cited by 50 publications

References 38 publications

RETRACTED ARTICLE: Facile design of an ultra-thin broadband metamaterial absorber for C-band applications

RETRACTED ARTICLE: Facile design of an ultra-thin broadband metamaterial absorber for C-band applications

Polarization Insensitive, Wide-Angle, Ultra-wideband, Flexible, Resistively Loaded, Electromagnetic Metamaterial Absorber using Conventional Inkjet-Printing Technology

Design of a Novel Double Negative Metamaterial Absorber Atom for Ku and K Band Applications

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