Tunable terahertz filter/antenna-sensor using graphene-based metamaterials

Esfandiyari, M; Lalbakhsh, A; Jarchi, S; Ghaffari-Miab, M; Mahtaj, HN; Simorangkir, RBVB

Tunable terahertz filter/antenna-sensor using graphene-based metamaterials

Esfandiyari, M Lalbakhsh, A Jarchi, S Ghaffari-Miab, M Mahtaj, HN Simorangkir, RBVB

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Publisher:: Elsevier
Publication Type:: Journal Article
Citation:: Materials and Design, 2022, 220, pp. 110855
Issue Date:: 2022-08-01

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Field	Value	Language
dc.contributor.author	Esfandiyari, M
dc.contributor.author	Lalbakhsh, A
dc.contributor.author	Jarchi, S
dc.contributor.author	Ghaffari-Miab, M
dc.contributor.author	Mahtaj, HN
dc.contributor.author	Simorangkir, RBVB
dc.date.accessioned	2023-06-29T05:09:46Z
dc.date.available	2023-06-29T05:09:46Z
dc.date.issued	2022-08-01
dc.identifier.citation	Materials and Design, 2022, 220, pp. 110855
dc.identifier.issn	0264-1275
dc.identifier.issn	1873-4197
dc.identifier.uri	http://hdl.handle.net/10453/170998
dc.description.abstract	In this paper, a novel tunable graphene-based bandstop filter/antenna-sensor is presented. This structure is an integrated module that can be used to combine filtering and high-gain radiation performance. The initial design of the unit cell consists of four U-shaped stubs loaded, resembling the arms of a ring and a sensing layer in the substrate. The reflection and transmission spectra are obtained for various graphene's chemical potentials and refractive index of sensing layer (Ns) of structure in the range of 1.3–1.6 THz. The proposed structure exhibits the attributes of both dual-band filter and single-band antenna-sensor. The conductivity of graphene and its structural parameters are studied to optimize the component performance. In filtering mode, the first bandstop is from 1.23 to 1.6 THz equal to 26% of fractional bandwidth (FBW) at 1.415 THz. The second stopband is centered at 3.12 THz with FBW of 14% for Ns = 1.6 and 0.6 eV chemical potential. In the antenna mode, a single band of the antenna-sensor is centered at 1.95 THz for the same Ns and same chemical potential. It is shown that a sensitivity of 0.145 THz/RIU is achieved at Ns = 1.5 and chemical potential of 0.6 eV. Additionally, the performance of the proposed filter/antenna-sensor module is investigated for different wave polarizations and oblique angles.
dc.language	en
dc.publisher	Elsevier
dc.relation.ispartof	Materials and Design
dc.relation.isbasedon	10.1016/j.matdes.2022.110855
dc.rights	info:eu-repo/semantics/openAccess
dc.subject	0910 Manufacturing Engineering, 0912 Materials Engineering, 0913 Mechanical Engineering
dc.subject.classification	Materials
dc.title	Tunable terahertz filter/antenna-sensor using graphene-based metamaterials
dc.type	Journal Article
utslib.citation.volume	220
utslib.for	0910 Manufacturing Engineering
utslib.for	0912 Materials Engineering
utslib.for	0913 Mechanical Engineering
utslib.copyright.status	open_access	*
dc.date.updated	2023-06-29T05:09:21Z
pubs.publication-status	Published
pubs.volume	220

Abstract:

In this paper, a novel tunable graphene-based bandstop filter/antenna-sensor is presented. This structure is an integrated module that can be used to combine filtering and high-gain radiation performance. The initial design of the unit cell consists of four U-shaped stubs loaded, resembling the arms of a ring and a sensing layer in the substrate. The reflection and transmission spectra are obtained for various graphene's chemical potentials and refractive index of sensing layer (Ns) of structure in the range of 1.3–1.6 THz. The proposed structure exhibits the attributes of both dual-band filter and single-band antenna-sensor. The conductivity of graphene and its structural parameters are studied to optimize the component performance. In filtering mode, the first bandstop is from 1.23 to 1.6 THz equal to 26% of fractional bandwidth (FBW) at 1.415 THz. The second stopband is centered at 3.12 THz with FBW of 14% for Ns = 1.6 and 0.6 eV chemical potential. In the antenna mode, a single band of the antenna-sensor is centered at 1.95 THz for the same Ns and same chemical potential. It is shown that a sensitivity of 0.145 THz/RIU is achieved at Ns = 1.5 and chemical potential of 0.6 eV. Additionally, the performance of the proposed filter/antenna-sensor module is investigated for different wave polarizations and oblique angles.

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http://hdl.handle.net/10453/170998