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Pseudospectral frequency-domain analysis of rectangular waveguides filled by dielectrics whose permittivity varies continuously along the broad dimension

Abstract: The calculation of dispersion diagrams and field patterns of metallic rectangular waveguides filled with an inhomogeneous dielectric whose permittivity varies continuously along the broad size of the guide is considered. In general, this problem has no exact solution, thus numerical techniques should be used. In this article, the pseudospectral frequency-domain (PSFD) method is proposed to address the problem. Starting from the Helmholtz equation, a matrix eigenvalue problem is obtained by applying the collocation technique with Chebyshev polynomials as basis functions. The results obtained are compared with those calculated by the conventional finite-difference frequency-domain method showing that the PSFD technique provides an excellent accuracy.

Otras publicaciones de la misma revista o congreso con autores/as de la Universidad de Cantabria

 Autoría: Pereda J.A., Grande A.,

 Fuente: Microwave and Optical Technology Letters, 2020, 62(9), 2830-2834

Editorial: John Wiley and Sons Inc.

 Fecha de publicación: 01/09/2020

Nº de páginas: 10

Tipo de publicación: Artículo de Revista

 DOI: 10.1002/mop.32390

ISSN: 0895-2477,1098-2760

Proyecto español: PGC2018-098350-B-C21 ; PGC2018-098350-B-C22

Url de la publicación: https://doi.org/10.1002/mop.32390

Autores/as

ANA MARIA GRANDE SAEZ