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Graphene-Based High-Frequency Millimeter-Wave Tunable Broadband Absorber.

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Title: Graphene-Based High-Frequency Millimeter-Wave Tunable Broadband Absorber.
Authors: Jia, Yilin1,2,3,4 (AUTHOR), Wang, Dian1,2,3,4 (AUTHOR), Miao, Shilong1,2,3,4 (AUTHOR), Ji, Xinran2,3,4,5 (AUTHOR), Ma, Binyi2,3,4,5 (AUTHOR), Wu, Qiannan1,2,3,4 (AUTHOR) qiannanwoo@nuc.edu.cn
Source: Plasmonics. Jun2025, Vol. 20 Issue 6, p3471-3482. 12p.
Subjects: Electromagnetic interference, Fermi level, Telecommunication, Graphene, Absorption
Abstract: This paper proposes a graphene-based metamaterial broadband absorber to address narrow absorption bandwidth and low absorption rate in current high-frequency millimeter-wave absorbers. The absorber consists of a PET layer at the bottom, an ITO layer, a SiO2 layer, a surface graphene layer, and a patterned copper structure. Simulation results indicate that the proposed absorber achieves an absorption bandwidth of 101.3 GHz, with an absorption frequency range of 117.5 to 218.8 GHz, where the absorption rate exceeds 90%. Near-perfect absorption is achieved at 170 GHz, covering the high-frequency millimeter-wave band. By adjusting the Fermi level of graphene, tunable absorption can be achieved, and the absorber is insensitive to both TE and TM polarization. The proposed absorber features good symmetry, compact size, tunability, and excellent insensitivity to TE and TM waves. This design holds promise for enhancing communication security and reducing electromagnetic interference in sixth-generation (6G) devices. [ABSTRACT FROM AUTHOR]
Copyright of Plasmonics is the property of Springer Nature 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: Graphene-Based High-Frequency Millimeter-Wave Tunable Broadband Absorber.
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  Data: <searchLink fieldCode="JN" term="%22Plasmonics%22">Plasmonics</searchLink>. Jun2025, Vol. 20 Issue 6, p3471-3482. 12p.
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  Data: <searchLink fieldCode="DE" term="%22Electromagnetic+interference%22">Electromagnetic interference</searchLink><br /><searchLink fieldCode="DE" term="%22Fermi+level%22">Fermi level</searchLink><br /><searchLink fieldCode="DE" term="%22Telecommunication%22">Telecommunication</searchLink><br /><searchLink fieldCode="DE" term="%22Graphene%22">Graphene</searchLink><br /><searchLink fieldCode="DE" term="%22Absorption%22">Absorption</searchLink>
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  Label: Abstract
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  Data: This paper proposes a graphene-based metamaterial broadband absorber to address narrow absorption bandwidth and low absorption rate in current high-frequency millimeter-wave absorbers. The absorber consists of a PET layer at the bottom, an ITO layer, a SiO2 layer, a surface graphene layer, and a patterned copper structure. Simulation results indicate that the proposed absorber achieves an absorption bandwidth of 101.3 GHz, with an absorption frequency range of 117.5 to 218.8 GHz, where the absorption rate exceeds 90%. Near-perfect absorption is achieved at 170 GHz, covering the high-frequency millimeter-wave band. By adjusting the Fermi level of graphene, tunable absorption can be achieved, and the absorber is insensitive to both TE and TM polarization. The proposed absorber features good symmetry, compact size, tunability, and excellent insensitivity to TE and TM waves. This design holds promise for enhancing communication security and reducing electromagnetic interference in sixth-generation (6G) devices. [ABSTRACT FROM AUTHOR]
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  Data: <i>Copyright of Plasmonics is the property of Springer Nature 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: 10.1007/s11468-024-02513-z
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      – Code: eng
        Text: English
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        PageCount: 12
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        Type: general
      – SubjectFull: Fermi level
        Type: general
      – SubjectFull: Telecommunication
        Type: general
      – SubjectFull: Graphene
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      – SubjectFull: Absorption
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              M: 06
              Text: Jun2025
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              Y: 2025
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