Title :
Spurious-free condensed-node time-domain simulation of guided wave problems
Author :
Coluch-Marcysiak, Malgorzata ; Gwarek, Wolciech K.
Author_Institution :
Institute of Radioelectronics, Warsaw University of Technology, Nowowiejska 15/19, 00-665 Warsaw, Poland. tel.:(+4822)6607631, fax:(+4822)255248
Abstract :
A novel FDTD algorithm is developed based on the generalized wave equation. It utilizes the symmetrical condensed node (SCN) discretization of space, but all the difficulties with spurious modes inherent in the previous SCN TLM and SCN FDTD schemes are successfully eliminated. Reliability and accuracy of the new algorithm are demonstrated in the analysis of waveguide dispersion characteristics and of scattering at inhomogeneous discontinuities.
Keywords :
Algorithm design and analysis; Differential equations; Dispersion; Electromagnetic waveguides; Finite difference methods; Maxwell equations; Partial differential equations; Performance analysis; Time domain analysis; Waveguide discontinuities;
Conference_Titel :
Microwave Conference, 1995. 25th European
Conference_Location :
Bologna, Italy
DOI :
10.1109/EUMA.1995.336954
