Analysis of homogeneous waveguides via the meshless radial basis function-generated-finite-difference method

Abstract: The radial basis function generatedfinite difference (RBFFD) method is applied to the analysis of homogenous waveguides. To this end, the Helmholtz equation and the boundary conditions are collocated on the waveguide cross section. At each collocation node, derivatives are locally approximated by RBFFD formulas based on polyharmonic splines supplemented with highdegree polynomials. As a result, a sparse matrix eigenvalue problem is obtained which allows cutoff wavenumbers and axial fields to be calculated. To illustrate the accuracy of the method, we consider a semicircular and an eccentric circular waveguides.

 Autoría: Pereda J.A., Grande A.,

 Fuente: IEEE Microwave and Wireless Components Letters, 2020, 30(3), 229-232

Editorial: Institute of Electrical and Electronics Engineers Inc.

 Fecha de publicación: 01/03/2020

Nº de páginas: 4

Tipo de publicación: Artículo de Revista

 DOI: 10.1109/LMWC.2019.2959450

ISSN: 1531-1309,1558-1764

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

Url de la publicación: https://doi.org/10.1109/LMWC.2019.2959450