On the Design of Ultrawideband Circuit Analog Absorber Based on Quasi-Single-Layer FSS

Yao, Zhixin; Xiao, Shaoqiu; Jiang, Zhenggang; Wang, Bing‐Zhong

doi:10.1109/lawp.2020.2972919

Cited by 90 publications

(27 citation statements)

References 15 publications

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“…2. This is due to the resonances is created when the imaginary part of the input admittance equals zero [43], [44]. The imaginary part of the input admittance depends only on the inductor and capacitor parameters determined by the shape of metallic resonator of the unit cell but not on lumped resistor (R).…”

Section: Structure Design and Methodsmentioning

confidence: 99%

Simple Design of a Wideband and Wide-Angle Insensitive Metamaterial Absorber Using Lumped Resistors for X- and Ku-Bands

et al. 2021

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We report a wideband and polarization-/wide-angle insensitive metamaterial absorber based on a symmetry structure associated with surface mount resistors. The proposed structure consists of a periodic array of a top metal symmetry resonator loading with four lumped resistors and a continuous metal ground plane separated by a dielectric substrate of FR-4. A prototype of the proposed absorber is fabricated and measured, confirming a good agreement between the measurement and simulation results. The proposed absorber shows polarization-insensitive behavior and the absorption response in a frequency range from 8-18 GHz covering the entire X-and Ku-bands with an absorptivity above 80% for a wide incident angle up to 40 o for both transverse electric and transverse magnetic polarizations. Compared with the reported broadband absorbers using lumped resistors, our proposed absorber exhibits excellent characteristics in terms of compact and simple structure, high relative absorption bandwidth, and polarization and wide-incident insensitivity. Therefore, this design shows promising potential for both X-and Ku-band applications.

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Section: Structure Design and Methodsmentioning

confidence: 99%

Simple Design of a Wideband and Wide-Angle Insensitive Metamaterial Absorber Using Lumped Resistors for X- and Ku-Bands

et al. 2021

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“…To reduce the thickness and increase the bandwidth, frequency selective surface (FSS) based circuit analog (CA) absorbers are designed [12][13][14][15][16][17][18][19][20][21][22][23]. The circuit analog absorber consists of resistive as well as reactive components which are printed on a dielectric substrate and terminated by a metal ground plane.…”

Section: Introductionmentioning

confidence: 99%

Design and Analysis of Polarization-Insensitive Broadband Microwave Absorber for Perfect Absorption

Malik¹,

Saikia²,

Sharma³

et al. 2021

PIER M

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A simple design configuration of a broadband polarization-insensitive double-layered microwave absorber is presented here. The proposed absorber is designed using indium tin oxide (ITO) based on thin resistive film. The novelty of structure is to achieve large absorption bandwidth with more than 99% absorption. The proposed structure is modeled for 20 dB absorption bandwidth at normal incidence from 6.3 GHz to 14.2 GHz spanning over C-band, X-band, and Ku-band. Under oblique incidence the proposed structure is stable up to 60 • for TE polarization and 45 • for TM polarization. To understand the operating principle of absorption of the proposed structure, an equivalent circuit is derived, and surface current distribution is also studied. A fabricated sample is measured, which validates our simulation.

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“…Another approach, by incorporating lumped elements into the MM resonators, was used in order to realize a broadband MM absorber [ 50 , 51 , 52 , 53 , 54 , 55 , 56 , 57 ]. It aims to match the input impedance with free space in a wide frequency range.…”

Section: Introductionmentioning

confidence: 99%

Toward an Ultra-Wideband Hybrid Metamaterial Based Microwave Absorber

et al. 2020

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In this paper, we propose a novel design of an ultra-wideband hybrid microwave absorber operating in the frequency range between 2 GHz and 18 GHz. This proposed hybrid absorber is composed of two different layers that integrate a multiband metamaterial absorber and a lossy dielectric layer. The metamaterial absorber consists of a periodic pattern that is composed of an arrangement of different scales of coupled resonators and a metallic ground plane, and the dielectric layer is made of epoxy foam composite loaded with low weight percentage (0.075 wt.%) of 12 mm length carbon fibers. The numerical results show a largely expanded absorption bandwidth that ranges from 2.6 GHz to 18 GHz with incident angles between 0° and 45° and for both transverse electric and transverse magnetic waves. The measurements confirm that absorption of this hybrid based metamaterial absorber exceeds 90% within the above-mentioned frequency range and it may reach an absorption rate of 99% for certain frequency ranges. The proposed idea offers a further step in developing new electromagnetic absorbers, which will impact a broad range of applications.

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On the Design of Ultrawideband Circuit Analog Absorber Based on Quasi-Single-Layer FSS

Cited by 90 publications

References 15 publications

Simple Design of a Wideband and Wide-Angle Insensitive Metamaterial Absorber Using Lumped Resistors for X- and Ku-Bands

Simple Design of a Wideband and Wide-Angle Insensitive Metamaterial Absorber Using Lumped Resistors for X- and Ku-Bands

Design and Analysis of Polarization-Insensitive Broadband Microwave Absorber for Perfect Absorption

Toward an Ultra-Wideband Hybrid Metamaterial Based Microwave Absorber

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