An electrically switchable wideband metamaterial absorber based on graphene at P band

An electrically switchable wideband metamaterial absorber based on graphene at P band

Graphene has the capability of dynamically tuning its conductivity through gate voltage. Based on this fact, an electrically switchable wideband metamaterial absorber at low frequencies is presented and investigated in this paper. Our calculated results show that its absorption is over 90% from 400...

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Bibliographic Details
Main Authors: Wang Liansheng, Xia Dongyan, Fu Quanhong, Ding Xueyong, Wang Yuan
Format: Article
Language:English
Published: De Gruyter 2021-08-01
Series:Open Physics
Subjects:
metamaterial absorber
graphene
switchable
wideband
low frequency
Online Access:https://doi.org/10.1515/phys-2021-0056
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spelling doaj-df1db8f823494b4c9113ed984cff88332021-10-03T07:42:42ZengDe GruyterOpen Physics2391-54712021-08-0119146046610.1515/phys-2021-0056An electrically switchable wideband metamaterial absorber based on graphene at P bandWang Liansheng0Xia Dongyan1Fu Quanhong2Ding Xueyong3Wang Yuan4Science and Technology Department, Sanya University, Sanya 52022, Hainan, ChinaFinance and Economics Department, Sanya University, Sanya 572022, Hainan, ChinaScience Department, Northwestern Polytechnical University, Xi’an 710072, Shanxi, ChinaScience and Technology Department, Sanya University, Sanya 52022, Hainan, ChinaScience and Technology Department, Sanya University, Sanya 52022, Hainan, ChinaGraphene has the capability of dynamically tuning its conductivity through gate voltage. Based on this fact, an electrically switchable wideband metamaterial absorber at low frequencies is presented and investigated in this paper. Our calculated results show that its absorption is over 90% from 400 to 1,000 MHz with the Fermi level of graphene being at 0 eV and the absorption band can be switched by adjusting the Fermi level of graphene without changing its physical structure. Moreover, the surface current distribution enables us to reveal the switchable wideband absorption characteristics of our designed metamaterial absorber. At last, we prove that its absorption property is polarization-insensitive due to the rotational symmetry of the structural unit. This work may provide a further step in the development of switchable sensors and absorbers at low frequencies.https://doi.org/10.1515/phys-2021-0056metamaterial absorbergrapheneswitchablewidebandlow frequency
collection DOAJ
language English
format Article
sources DOAJ
author Wang Liansheng
Xia Dongyan
Fu Quanhong
Ding Xueyong
Wang Yuan
spellingShingle Wang Liansheng
Xia Dongyan
Fu Quanhong
Ding Xueyong
Wang Yuan
An electrically switchable wideband metamaterial absorber based on graphene at P band
Open Physics
metamaterial absorber
graphene
switchable
wideband
low frequency
author_facet Wang Liansheng
Xia Dongyan
Fu Quanhong
Ding Xueyong
Wang Yuan
author_sort Wang Liansheng
title An electrically switchable wideband metamaterial absorber based on graphene at P band
title_short An electrically switchable wideband metamaterial absorber based on graphene at P band
title_full An electrically switchable wideband metamaterial absorber based on graphene at P band
title_fullStr An electrically switchable wideband metamaterial absorber based on graphene at P band
title_full_unstemmed An electrically switchable wideband metamaterial absorber based on graphene at P band
title_sort electrically switchable wideband metamaterial absorber based on graphene at p band
publisher De Gruyter
series Open Physics
issn 2391-5471
publishDate 2021-08-01
description Graphene has the capability of dynamically tuning its conductivity through gate voltage. Based on this fact, an electrically switchable wideband metamaterial absorber at low frequencies is presented and investigated in this paper. Our calculated results show that its absorption is over 90% from 400 to 1,000 MHz with the Fermi level of graphene being at 0 eV and the absorption band can be switched by adjusting the Fermi level of graphene without changing its physical structure. Moreover, the surface current distribution enables us to reveal the switchable wideband absorption characteristics of our designed metamaterial absorber. At last, we prove that its absorption property is polarization-insensitive due to the rotational symmetry of the structural unit. This work may provide a further step in the development of switchable sensors and absorbers at low frequencies.
topic metamaterial absorber
graphene
switchable
wideband
low frequency
url https://doi.org/10.1515/phys-2021-0056
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