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On the Practical Limitations of Scalable Electronic 2D Beamsteering Using Metamaterials at Micro and Millimetre-wave Frequencies

2021-02Comunicação em conferência Acesso restrito
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datacite.subject.fosCiências Naturais::Ciências da Computação e da Informação
datacite.subject.sdg10:Reduzir as Desigualdades
datacite.subject.sdg11:Cidades e Comunidades Sustentáveis
dc.contributor.authorVala, Mário
dc.contributor.authorReis, Joao R.
dc.contributor.authorCaldeirinha, Rafael F. S.
dc.date.accessioned2026-03-27T16:23:12Z
dc.date.available2026-03-27T16:23:12Z
dc.date.issued2021-02
dc.descriptionEISBN - 978-1-6654-1588-0
dc.descriptionDate of Conference: 11-12 February 2021
dc.description.abstractIn this paper, the practical limitations of scalable electronic two-dimensional (2D) beamsteering using metamaterials at Micro- and Millimetre-wave frequencies, are addressed. In particular, the practical effects of using varactor diodes on a metamaterial-based beamsteering transmitarray, are studied and characterised, at four different frequencies of interest: 5, 14, 28 and 60 GHz. The parasitic effects intrinsic to such components, namely the internal resistance and internal inductance, are being studied. A thorough parametric analysis in CST Microwave Studio is conducted, in order to ascertain how the varactor's parasitics affect the frequency response, insertion loss, bandwidth and maximum achieved phase shift and consequent beamsteering resolution, at the proposed frequencies. The parametric study targets the parasitic resistance and inductance values of varactor diodes commercially available, making this study useful for any RF transmitarray implementation.eng
dc.description.sponsorshipThis research was partially supported by FCT under the project WSN-EM: PTDC/EEI-EEE/30539/2017 and by FCT/MCTES through national funds and when applicable, cofunded EU funds under the project UIDB/EEA/50008/2020.
dc.identifier.citationM. Vala, J. R. Reis and R. F. S. Caldeirinha, "On the Practical Limitations of Scalable Electronic 2D Beamsteering Using Metamaterials at Micro and Millimetre-wave Frequencies," 2021 Telecoms Conference (ConfTELE), Leiria, Portugal, 2021, pp. 1-6, doi: https://doi.org/10.1109/ConfTELE50222.2021.9435521.
dc.identifier.doi10.1109/conftele50222.2021.9435521
dc.identifier.isbn978-1-6654-4680-8
dc.identifier.isbn978-1-6654-1588-0
dc.identifier.urihttp://hdl.handle.net/10400.8/16036
dc.language.isoeng
dc.peerreviewedyes
dc.publisherIEEE Canada
dc.relationWireless Sensor Network for Environmental Monitoring
dc.relation.hasversionhttps://ieeexplore.ieee.org/document/9435521
dc.relation.ispartof2021 Telecoms Conference (ConfTELE)
dc.rights.uriN/A
dc.subjectantenna
dc.subjectbeamsteering
dc.subjectcapacitance
dc.subjectFSS
dc.subjectmetamaterials
dc.subjecttransmitarray
dc.subjectvaractor
dc.titleOn the Practical Limitations of Scalable Electronic 2D Beamsteering Using Metamaterials at Micro and Millimetre-wave Frequencieseng
dc.typeconference paper
dspace.entity.typePublication
oaire.awardNumberPTDC/EEI-EEE/30539/2017
oaire.awardTitleWireless Sensor Network for Environmental Monitoring
oaire.awardURIhttp://hdl.handle.net/10400.8/14038
oaire.citation.conferenceDate2021-02
oaire.citation.conferencePlaceLeiria, Portugal
oaire.citation.title2021 Telecoms Conference, ConfTELE 2021
oaire.fundingStreamConcurso para Financiamento de Projetos de Investigação Científica e Desenvolvimento Tecnológico em Todos os Domínios Científicos - 2017
oaire.versionhttp://purl.org/coar/version/c_970fb48d4fbd8a85
person.familyNameVITORINO REIS
person.familyNameCaldeirinha
person.givenNameJOÃO RICARDO
person.givenNameRafael
person.identifier.ciencia-idE210-EE7F-E9BA
person.identifier.ciencia-id4D18-2B1E-0960
person.identifier.orcid0000-0002-0356-9839
person.identifier.orcid0000-0003-0297-7870
person.identifier.ridF-1499-2015
person.identifier.scopus-author-id7801603527
relation.isAuthorOfPublicationbee6522a-271f-47e6-8aab-a647a7566376
relation.isAuthorOfPublicationb04f8672-d7af-443e-9104-ae8698dcdc9d
relation.isAuthorOfPublication.latestForDiscoverybee6522a-271f-47e6-8aab-a647a7566376
relation.isProjectOfPublication505c0c13-7d08-4904-96cb-247dc924326d
relation.isProjectOfPublication.latestForDiscovery505c0c13-7d08-4904-96cb-247dc924326d

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In this paper, the practical limitations of scalable electronic two-dimensional (2D) beamsteering using metamaterials at Micro- and Millimetre-wave frequencies, are addressed. In particular, the practical effects of using varactor diodes on a metamaterial-based beamsteering transmitarray, are studied and characterised, at four different frequencies of interest: 5, 14, 28 and 60 GHz. The parasitic effects intrinsic to such components, namely the internal resistance and internal inductance, are being studied. A thorough parametric analysis in CST Microwave Studio is conducted, in order to ascertain how the varactor's parasitics affect the frequency response, insertion loss, bandwidth and maximum achieved phase shift and consequent beamsteering resolution, at the proposed frequencies. The parametric study targets the parasitic resistance and inductance values of varactor diodes commercially available, making this study useful for any RF transmitarray implementation.
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