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On the behavior of the LOD-FDTD method at dielectric interfaces

Abstract: The electric field computed by the locally 1-D finite-difference time-domain (FDTD) method at dielectric interfaces is investigated. To this end, two comprehensive problems are considered, namely a dielectric step in a rectangular waveguide and a dielectric-loaded metallic cavity. We found that, in both problems, the electric field patterns exhibit an unexpected phase shift at the dielectric interface. By contrast, the alternating-direction implicit FDTD method does not present this unphysical behavior.

 Autoría: Pereda J., Grande A.,

 Fuente: IEEE Microwave and Wireless Components Letters, 2018, 28(6), 461-463

 Editorial: Institute of Electrical and Electronics Engineers Inc.

 Fecha de publicación: 01/06/2018

 Nº de páginas: 3

 Tipo de publicación: Artículo de Revista

 DOI: 10.1109/LMWC.2018.2832014

 ISSN: 1531-1309,1558-1764

 Proyecto español: TEC2014-55463-C3-2-P ; TEC2014-55463-C3-3-P

 Url de la publicación: https://doi.org/10.1109/LMWC.2018.2832014