A higher-order spectral element method for modeling eccentric anisotropic multilayered waveguides via transformation optics

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Autor(es): dc.contributorUniversidade Estadual Paulista (UNESP)-
Autor(es): dc.contributorPontifical Catholic University of Rio de Janeiro-
Autor(es): dc.contributorThe Ohio State University-
Autor(es): dc.creatorRibeiro, Raul O.-
Autor(es): dc.creatorRosa, Guilherme S.-
Autor(es): dc.creatorBergmann, José R.-
Autor(es): dc.creatorTeixeira, Fernando L.-
Data de aceite: dc.date.accessioned2025-08-21T19:00:15Z-
Data de disponibilização: dc.date.available2025-08-21T19:00:15Z-
Data de envio: dc.date.issued2025-04-29-
Data de envio: dc.date.issued2024-12-31-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1017/S1759078725000170-
Fonte completa do material: dc.identifierhttps://hdl.handle.net/11449/307993-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/307993-
Descrição: dc.descriptionWe present a higher-order spectral element method (SEM) for analyzing eccentric anisotropic multilayered waveguides. The formulation uses conformal transformation optics to map the original eccentric waveguide to an equivalent concentric one. This transformation is extended to handle anisotropic non-reciprocal media characterized by non-symmetric and non-Hermitian tensors. In the transformed concentric domain, higher-order two-dimensional basis functions associated with the zeros of the completed Lobatto polynomial are used to expand the fields. To simulate radially unbounded problems, we employ a complex-stretched perfectly matched layer to mimic open space. The method is validated with radially bounded two-layer and three-layer waveguides and radially unbounded three-layer waveguides. Comparisons with the finite element method (FEM) demonstrate that our SEM approach requires significantly fewer degrees of freedom than FEM.-
Descrição: dc.descriptionSchool of Engineering São Paulo State University (UNESP), SP-
Descrição: dc.descriptionDepartment of Electrical Engineering Pontifical Catholic University of Rio de Janeiro, RJ-
Descrição: dc.descriptionElectroScience Laboratory The Ohio State University-
Descrição: dc.descriptionSchool of Engineering São Paulo State University (UNESP), SP-
Idioma: dc.languageen-
Relação: dc.relationInternational Journal of Microwave and Wireless Technologies-
???dc.source???: dc.sourceScopus-
Palavras-chave: dc.subjectanisotropic non-reciprocal media-
Palavras-chave: dc.subjecteccentric multilayered waveguide-
Palavras-chave: dc.subjectspectral element method-
Palavras-chave: dc.subjecttransformation optics-
Título: dc.titleA higher-order spectral element method for modeling eccentric anisotropic multilayered waveguides via transformation optics-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

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