RT info:eu-repo/semantics/article
T1 Pseudospectral frequency‐domain analysis of rectangular waveguides filled by dielectrics whose permittivity varies continuously along the broad dimension
A1 Pereda, José A.
A1 Grande Sáez, Ana María
K1 Chebyshev polynomials
K1 Finite-difference frequency-domain (FDTD) method
K1 Inhomogeneous dielectric
K1 Pseudospectral frequency-domain method
K1 Rectangular waveguide
AB 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.
PB John Wiley and Sons Inc.
SN 0895-2477
YR 2020
FD 2020
LK https://uvadoc.uva.es/handle/10324/81365
UL https://uvadoc.uva.es/handle/10324/81365
LA eng
NO Microwave and Optical Technology Letters, Septiembre 2020, vol. 9, p. 2830-2834
NO Producción Científica
DS UVaDOC
RD 12-feb-2026