An Investigation on Compact Ultra-Thin Triple Band Polarization Independent Metamaterial Absorber for Microwave Frequency Applications

Mishra, Naveen; Choudhary, Dilip Kumar; Chowdhury, Rakesh; Kumari, Khusboo; Chaudhary, Raghvendra Kumar

doi:10.1109/access.2017.2675439

Cited by 92 publications

(49 citation statements)

References 17 publications

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“…In this paper, an ultra-thin fractal MA cell, first illustrated by the authors in Reference [9], is presented for dual-band operation within the UHF range. Even if other dual-band/multi-band MA configurations can be found in literature [10][11][12][13][14][15][16][17], this is the first example working at UHF frequencies.…”

Section: Introductionmentioning

confidence: 99%

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A Dual-Band Compact Metamaterial Absorber with Fractal Geometry

2019

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A fractal absorber based on a metamaterial configuration is proposed for dual-frequency operation within the UHF band. The miniaturization skills of the proposed fractal shape are used to design a dual-band metamaterial absorber cell with reduced size (<λ/2 at the two operating frequencies) and a very thin substrate thickness ( λ/100). A metamaterial absorber panel is realized and experimentally validated. Good agreements between full-wave simulations and measurement results are demonstrated.

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Section: Introductionmentioning

confidence: 99%

“…Unlike other multi-band MAs [10][11][12][13][14][15][16][17], the proposed fractal MA-cell allows to achieve closer absorbing peaks. Furthermore, the adopted single-layer structure offers reduced thickness ( λ/107) and very small unit cells ( 0.4λ), with λ being the free-space wavelength at the smaller resonant frequency.…”

Section: Introductionmentioning

confidence: 99%

A Dual-Band Compact Metamaterial Absorber with Fractal Geometry

2019

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“…Multi-band polarization insensitive absorbers are designed in [6][7][8]. A compact ultrathin multi-band absorber is designed by using fractal broken cross with Jerusalem cross loading in [9,18], and multi-band absorbers using compact unit cells are designed in [10][11][12][13][14]. These absorbers are not ultrathin and compact with multi-band operation at the same time.…”

Section: Introductionmentioning

confidence: 99%

A Triple Band Polarization Insensitive Ultrathin Metamaterial Absorber for S- C- And X-Bands

Singh¹,

Abegaonkar²,

Koul³

2019

PIER M

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In this paper, design of a triple band ultrathin compact polarization insensitive metamaterial absorber for S-, C-and X-band applications is proposed. The proposed absorber consists of periodic arrangement of a modified triple circular slot ring resonator as unit cell printed on the top of a continuous metal backed FR-4 dielectric substrate. The proposed absorber is ultrathin having thickness of λ 0 /135.66 at the lowest absorption center frequency. The measured wide stable absorption bands of 0.40 GHz, 0.45 GHz and 0.47 GHz with absorption peaks of 97%, 96.45% and 98.20% at absorption center frequencies of 2.90 GHz, 4.18 GHz and 9.25 GHz respectively are observed. The temperature profile of absorber is measured by using lock in infrared thermography, and a temperature increase of 1 • C at absorbing frequency as compared to non-absorbing frequency is observed. The absorber is demonstrated to be polarization insensitive to TE and TM polarized angles of incidence of electromagnetic wave with wide angular stability up to 45 •. The absorber is fabricated and tested in an anechoic chamber. Experimental results agree well with measured ones.

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“…In another approach, the unit cell has been designed with multi-resonators within a single unit cell [22,27]. Further, this work is inspired by the article [31], where two different kinds of resonators are used to generate triple band response. In [31], study has been done for an outer rectangular ring which is diagonally split while in the present suggested work, study has been done for a circular ring which is diagonally split.…”

Section: Introductionmentioning

confidence: 99%

Design and Development of an Ultrathin Triple Band Microwave Absorber Using Miniaturized Metamaterial Structure for Near-Unity Absorption Characteristics

Chaudhary¹

2019

PIER C

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This article discusses about the design and development of an ultrathin triple band microwave absorber using a miniaturized metamaterial structure for near-unity absorption characteristics. In order to design a miniaturized metamaterial (MTM) absorber unit cell with triple band response, two resonators, named as Structure-I and Structure-II, are configured within the single unit cell. The geometrical proportions of the suggested resonators have been chosen in such a manner so that Structure-I can contribute one absorption band while Structure-II can contribute two absorption bands. Therefore, the combination of two resonators offers triple band response with the highest absorption values of 99.04%, 99.62%, and 99.33% at the frequencies of 4.25 GHz, 8.35 GHz, and 11.06 GHz, respectively. Additionally, the suggested absorber unit cell claims miniaturization with total electrical size of 0.156λ 0 × 0.156λ 0 × 0.014λ 0 , where λ 0 corresponds to the free-space wavelength at the first peak absorption frequency of 4.25 GHz. Additionally, the electric field and vectored surface current distribution along with the input impedance graph has been used to discuss the absorption methodology of the suggested structure. Further, the MTM belongings of the suggested structure have been illustrated with the dispersion curve.

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An Investigation on Compact Ultra-Thin Triple Band Polarization Independent Metamaterial Absorber for Microwave Frequency Applications

Cited by 92 publications

References 17 publications

A Dual-Band Compact Metamaterial Absorber with Fractal Geometry

A Dual-Band Compact Metamaterial Absorber with Fractal Geometry

A Triple Band Polarization Insensitive Ultrathin Metamaterial Absorber for S- C- And X-Bands

Design and Development of an Ultrathin Triple Band Microwave Absorber Using Miniaturized Metamaterial Structure for Near-Unity Absorption Characteristics

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