Title :
Evaluation and enhancement of supraconvergence effects on nonuniform and conformal FDTD meshes
Author :
Celuch-Marcysiak, M.
Author_Institution :
Inst. of Radioelectron., Warsaw Univ. of Technol., Poland
Abstract :
Numerical errors arising on nonuniform FDTD meshes have been revealed and classified. Formulae for evaluating those errors have been analytically derived and verified in simulations. Simple recipes for suppressing the errors and enhancing their order of supraconvergence with refined discretisation have been proposed. Conformal modelling based on directional and linearised cell merging is introduced and recommended for practical microwave circuit simulations.
Keywords :
circuit simulation; convergence of numerical methods; finite difference time-domain analysis; mesh generation; microwave circuits; conformal FDTD meshes; conformal modelling; linearised cell merging; microwave circuit simulations; nonuniform FDTD meshes; refined discretisation; supraconvergence effects; Analytical models; Circuit simulation; Convergence; Electronic mail; Equations; Finite difference methods; Frequency; Power engineering computing; Reflection; Time domain analysis;
Conference_Titel :
Microwave Symposium Digest, 2001 IEEE MTT-S International
Conference_Location :
Phoenix, AZ, USA
Print_ISBN :
0-7803-6538-0
DOI :
10.1109/MWSYM.2001.967000
