Broadband and high-efficiency metal-decorated graphene metasurface absorber for X- and Ku- band EMI shielding

Yan Ting Wu; Shih Wen Chen; Sridharan Balu; Jin You Lu; Hui Hsin Hsiao

doi:10.1016/j.cjph.2026.05.003

Broadband and high-efficiency metal-decorated graphene metasurface absorber for X- and Ku- band EMI shielding

Yan Ting Wu
, Shih Wen Chen^*
, Sridharan Balu
, Jin You Lu
, Hui Hsin Hsiao

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

Abstract

We propose a broadband hybrid metasurface absorber based on a magnetic resonance for X- and Ku-band electromagnetic interference (EMI) shielding. The designed structure incorporates a patterned resonator layer, a dielectric layer, and a conductively reflective layer. By leveraging multi-resonant mechanisms, including LC and magnetic dipole resonances alongside cavity-assisted effect, the absorber achieves near-perfect peak absorption (greater than 97%) and maintains approximately 90% efficiency across the 8–18 GHz frequency range. Numerical simulations demonstrate wide-angle absorption with robust angular stability up to 60° for both transverse electric (TE) and transverse magnetic (TM) polarizations in the xz - and yz -planes. This ultrathin and lightweight design offers a promising solution for EMI shielding and electromagnetic compatibility in various applications.

Original language	English
Pages (from-to)	717-732
Number of pages	16
Journal	Chinese Journal of Physics
Volume	103
DOIs	https://doi.org/10.1016/j.cjph.2026.05.003
Publication status	Published - 2026 Oct
Externally published	Yes

Keywords

Absorber
EMI shielding
Graphene
Metasurface

ASJC Scopus subject areas

General Physics and Astronomy

Access to Document

10.1016/j.cjph.2026.05.003

Cite this

@article{8a086c327f5643a2baea70f14629fe9b,

title = "Broadband and high-efficiency metal-decorated graphene metasurface absorber for X- and Ku- band EMI shielding",

abstract = "We propose a broadband hybrid metasurface absorber based on a magnetic resonance for X- and Ku-band electromagnetic interference (EMI) shielding. The designed structure incorporates a patterned resonator layer, a dielectric layer, and a conductively reflective layer. By leveraging multi-resonant mechanisms, including LC and magnetic dipole resonances alongside cavity-assisted effect, the absorber achieves near-perfect peak absorption (greater than 97\%) and maintains approximately 90\% efficiency across the 8{\textendash}18 GHz frequency range. Numerical simulations demonstrate wide-angle absorption with robust angular stability up to 60° for both transverse electric (TE) and transverse magnetic (TM) polarizations in the xz - and yz -planes. This ultrathin and lightweight design offers a promising solution for EMI shielding and electromagnetic compatibility in various applications.",

keywords = "Absorber, EMI shielding, Graphene, Metasurface",

author = "Wu, \{Yan Ting\} and Chen, \{Shih Wen\} and Sridharan Balu and Lu, \{Jin You\} and Hsiao, \{Hui Hsin\}",

note = "Publisher Copyright: {\textcopyright} 2026 The Physical Society of the Republic of China (Taiwan).",

year = "2026",

month = oct,

doi = "10.1016/j.cjph.2026.05.003",

language = "English",

volume = "103",

pages = "717--732",

journal = "Chinese Journal of Physics",

issn = "0577-9073",

publisher = "Elsevier BV",

}

TY - JOUR

T1 - Broadband and high-efficiency metal-decorated graphene metasurface absorber for X- and Ku- band EMI shielding

AU - Wu, Yan Ting

AU - Chen, Shih Wen

AU - Balu, Sridharan

AU - Lu, Jin You

AU - Hsiao, Hui Hsin

PY - 2026/10

Y1 - 2026/10

N2 - We propose a broadband hybrid metasurface absorber based on a magnetic resonance for X- and Ku-band electromagnetic interference (EMI) shielding. The designed structure incorporates a patterned resonator layer, a dielectric layer, and a conductively reflective layer. By leveraging multi-resonant mechanisms, including LC and magnetic dipole resonances alongside cavity-assisted effect, the absorber achieves near-perfect peak absorption (greater than 97%) and maintains approximately 90% efficiency across the 8–18 GHz frequency range. Numerical simulations demonstrate wide-angle absorption with robust angular stability up to 60° for both transverse electric (TE) and transverse magnetic (TM) polarizations in the xz - and yz -planes. This ultrathin and lightweight design offers a promising solution for EMI shielding and electromagnetic compatibility in various applications.

AB - We propose a broadband hybrid metasurface absorber based on a magnetic resonance for X- and Ku-band electromagnetic interference (EMI) shielding. The designed structure incorporates a patterned resonator layer, a dielectric layer, and a conductively reflective layer. By leveraging multi-resonant mechanisms, including LC and magnetic dipole resonances alongside cavity-assisted effect, the absorber achieves near-perfect peak absorption (greater than 97%) and maintains approximately 90% efficiency across the 8–18 GHz frequency range. Numerical simulations demonstrate wide-angle absorption with robust angular stability up to 60° for both transverse electric (TE) and transverse magnetic (TM) polarizations in the xz - and yz -planes. This ultrathin and lightweight design offers a promising solution for EMI shielding and electromagnetic compatibility in various applications.

KW - Absorber

KW - EMI shielding

KW - Graphene

KW - Metasurface

UR - https://www.scopus.com/pages/publications/105042504589

UR - https://www.scopus.com/pages/publications/105042504589#tab=citedBy

U2 - 10.1016/j.cjph.2026.05.003

DO - 10.1016/j.cjph.2026.05.003

M3 - Article

AN - SCOPUS:105042504589

SN - 0577-9073

VL - 103

SP - 717

EP - 732

JO - Chinese Journal of Physics

JF - Chinese Journal of Physics

ER -

Broadband and high-efficiency metal-decorated graphene metasurface absorber for X- and Ku- band EMI shielding

Abstract

Keywords

ASJC Scopus subject areas

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