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A Low Profile Polarization-insensitive Multiple-band Metamaterial Absorber using a Slotted Octagonal Unit Cell.

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Title: A Low Profile Polarization-insensitive Multiple-band Metamaterial Absorber using a Slotted Octagonal Unit Cell.
Authors: Elhefnawy, Mohamed1,2, KyoungHun Kim1, Tae-Hyeon Kim1, Wang-Sang Lee1 wsang@gnu.ac.kr
Source: Applied Computational Electromagnetics Society Journal. May2024, Vol. 39 Issue 5, p440-451. 12p.
Subjects: Unit cell, Lumped elements, Electric lines, Substrates (Materials science), Metamaterials
Abstract: This paper introduces a thin, polarizationinsensitive (PI), and multiple-band electromagnetic metamaterial absorber (MMA). The unit cell of the MMA consists of a slotted octagonal metallic patch printed on an FR4 dielectric substrate, backed by a grounded metallic layer, and notably does not incorporate resistive lumped elements. The proposed MMA exhibits measured absorption, exceeding 75% for normal incidence, across frequency bands ranging from 2.22– 2.38 GHz, 6.86–7.24 GHz, 11.68–12.71 GHz, 14.1–14.8 GHz, and 15.47–16 GHz. The proposed MMA unit cell has dimensions of 0.21λ0 × 0.21λ0 and a thickness of 0.001λ0, where λ0 represents the wavelength corresponding to the lowest frequency at 2.22 GHz. The performance of the proposed MMA is simulated using CST Microwave Studio and MATLAB, and subsequently validated through experimental measurements. [ABSTRACT FROM AUTHOR]
Copyright of Applied Computational Electromagnetics Society Journal is the property of River Publishers and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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  Data: A Low Profile Polarization-insensitive Multiple-band Metamaterial Absorber using a Slotted Octagonal Unit Cell.
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  Data: <searchLink fieldCode="AR" term="%22Elhefnawy%2C+Mohamed%22">Elhefnawy, Mohamed</searchLink><relatesTo>1,2</relatesTo><br /><searchLink fieldCode="AR" term="%22KyoungHun+Kim%22">KyoungHun Kim</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Tae-Hyeon+Kim%22">Tae-Hyeon Kim</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Wang-Sang+Lee%22">Wang-Sang Lee</searchLink><relatesTo>1</relatesTo><i> wsang@gnu.ac.kr</i>
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  Data: <searchLink fieldCode="JN" term="%22Applied+Computational+Electromagnetics+Society+Journal%22">Applied Computational Electromagnetics Society Journal</searchLink>. May2024, Vol. 39 Issue 5, p440-451. 12p.
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  Data: <searchLink fieldCode="DE" term="%22Unit+cell%22">Unit cell</searchLink><br /><searchLink fieldCode="DE" term="%22Lumped+elements%22">Lumped elements</searchLink><br /><searchLink fieldCode="DE" term="%22Electric+lines%22">Electric lines</searchLink><br /><searchLink fieldCode="DE" term="%22Substrates+%28Materials+science%29%22">Substrates (Materials science)</searchLink><br /><searchLink fieldCode="DE" term="%22Metamaterials%22">Metamaterials</searchLink>
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  Label: Abstract
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  Data: This paper introduces a thin, polarizationinsensitive (PI), and multiple-band electromagnetic metamaterial absorber (MMA). The unit cell of the MMA consists of a slotted octagonal metallic patch printed on an FR4 dielectric substrate, backed by a grounded metallic layer, and notably does not incorporate resistive lumped elements. The proposed MMA exhibits measured absorption, exceeding 75% for normal incidence, across frequency bands ranging from 2.22– 2.38 GHz, 6.86–7.24 GHz, 11.68–12.71 GHz, 14.1–14.8 GHz, and 15.47–16 GHz. The proposed MMA unit cell has dimensions of 0.21λ0 × 0.21λ0 and a thickness of 0.001λ0, where λ0 represents the wavelength corresponding to the lowest frequency at 2.22 GHz. The performance of the proposed MMA is simulated using CST Microwave Studio and MATLAB, and subsequently validated through experimental measurements. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Applied Computational Electromagnetics Society Journal is the property of River Publishers and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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        Value: 10.13052/2024.ACES.J.390508
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      – Code: eng
        Text: English
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        PageCount: 12
        StartPage: 440
    Subjects:
      – SubjectFull: Unit cell
        Type: general
      – SubjectFull: Lumped elements
        Type: general
      – SubjectFull: Electric lines
        Type: general
      – SubjectFull: Substrates (Materials science)
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      – SubjectFull: Metamaterials
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      – TitleFull: A Low Profile Polarization-insensitive Multiple-band Metamaterial Absorber using a Slotted Octagonal Unit Cell.
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            NameFull: KyoungHun Kim
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            NameFull: Tae-Hyeon Kim
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            NameFull: Wang-Sang Lee
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            – D: 01
              M: 05
              Text: May2024
              Type: published
              Y: 2024
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            – TitleFull: Applied Computational Electromagnetics Society Journal
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