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Tunable square slot FSS EC modelling and optimisation

2017-02-08Artigo científico Acesso restrito
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datacite.subject.sdg03:Saúde de Qualidade
datacite.subject.sdg07:Energias Renováveis e Acessíveis
datacite.subject.sdg11:Cidades e Comunidades Sustentáveis
dc.contributor.authorFerreira, David
dc.contributor.authorCaldeirinha, Rafael Ferreira Silva
dc.contributor.authorCuiñas, Iñigo
dc.contributor.authorFernandes, Telmo Rui
dc.date.accessioned2026-03-09T16:13:22Z
dc.date.available2026-03-09T16:13:22Z
dc.date.issued2017-02-08
dc.description.abstractAn equivalent circuit model for tunable square slot frequency selective surfaces (FSS) is proposed. Tuning is achieved with the inclusion of a discrete capacitance element, at key points within the FSS unit cell. The equivalent circuit model takes into account the FSS physical attributes. The performance of the proposed equivalent circuit model was evaluated against results obtained from appropriate electromagnetic simulations. Results demonstrate the validity of the proposed equivalent circuit model, in which good estimations of the frequency response of FSS structures were obtained. A RMSE value of 190 MHz was extracted from the complete parametric simulation set. The model was further validated against measurements performed on a tunable active FSS prototype inside an anechoic chamber. Tuning of the FSS was achieved by means of bias voltage to modify the varicaps capacitance value. A relatively good agreement was verified between equivalent circuit model, electromagnetic simulations and measurements. Finally, this work is sought to be a useful contribution to the literature on this topic, by improving on the elementary models of such FSS structures and be useful as a good and fast first approach to determine approximate FSS unit cell dimensions.eng
dc.description.sponsorshipThe authors are grateful to the Instituto de Telecomunicações – Leiria, Portugal, to the Polytechnic Institute of Leiria, School of Technology and Management, Portugal, and to the Universidade de Vigo, Spain, for making available their facilities used in this research project. This research was partially supported by the Portuguese Government, Portuguese Foundation for Science and Technology, Fundação para a Ciência e a Tecnologia, through the financial support provided under the Quadro de Referência Estratégica Nacional-Programa Operacional Potencial Humano funding and COMPETE 2020 (POCI-01-0247-FEDER-017867), by the Spanish Government, Ministerio de Economía y Competitividad, Secretaría de Estado de Investigación, Desarrollo e Innovación (project TEC2014-55735-C03-3R) AtlantTIC Research Center and the European Regional Development Fund (ERDF).
dc.identifier.citationFerreira, D., Caldeirinha, R. F. da S., Cuiñas, I., & Fernandes, T. R. (2017). Tunable square slot FSS EC modelling and optimisation. IET Microwaves, Antennas & Propagation., 11(5), 737–742. https://doi.org/10.1049/iet-map.2016.0540
dc.identifier.doi10.1049/iet-map.2016.0540
dc.identifier.issn1751-8725
dc.identifier.issn1751-8733
dc.identifier.urihttp://hdl.handle.net/10400.8/15816
dc.language.isoeng
dc.peerreviewedyes
dc.publisherInstitution of Engineering and Technology (IET)
dc.relationPOCI-01-0247-FEDER-017867
dc.relationTEC2014-55735-C03-3R
dc.relation.hasversionhttps://ietresearch.onlinelibrary.wiley.com/doi/10.1049/iet-map.2016.0540
dc.relation.ispartofIET Microwaves, Antennas & Propagation
dc.rights.uriN/A
dc.titleTunable square slot FSS EC modelling and optimisationeng
dc.typejournal article
dspace.entity.typePublication
oaire.citation.issue5
oaire.citation.titleIET microwaves, antennas & propagation
oaire.citation.volume11
oaire.versionhttp://purl.org/coar/version/c_970fb48d4fbd8a85
person.familyNameFerreira
person.familyNameCaldeirinha
person.givenNameDavid
person.givenNameRafael
person.identifier.ciencia-id4D18-2B1E-0960
person.identifier.orcid0000-0001-8168-910X
person.identifier.orcid0000-0003-0297-7870
person.identifier.ridF-1499-2015
person.identifier.scopus-author-id7801603527
relation.isAuthorOfPublicationde66232a-0b61-4d77-8409-01597cd7ae61
relation.isAuthorOfPublicationb04f8672-d7af-443e-9104-ae8698dcdc9d
relation.isAuthorOfPublication.latestForDiscoveryde66232a-0b61-4d77-8409-01597cd7ae61

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