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A novel low‐dispersive (2,2) collocated FDTD scheme
Author(s) -
Bommaraju Chakrapani,
Marklein Rene,
Schuhmann Rolf,
Weiland Thomas
Publication year - 2006
Publication title -
international journal of numerical modelling: electronic networks, devices and fields
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.249
H-Index - 30
eISSN - 1099-1204
pISSN - 0894-3370
DOI - 10.1002/jnm.627
Subject(s) - finite difference time domain method , convergence (economics) , dispersion (optics) , broadband , dispersion relation , mathematics , scheme (mathematics) , relation (database) , mathematical analysis , finite difference , computer science , physics , telecommunications , optics , database , economics , economic growth
The dispersion relation and the convergence of a modified finite‐difference time‐domain scheme (MFDTD), which has fourth‐order convergence and excellent broadband characteristics, are presented. The accuracy of several low‐dispersion finite‐difference time‐domain schemes in 2‐D is compared with that of the MFDTD, via direct evaluation of the dispersion relation. Convergence of the FDTD and the MFDTD in 2‐D are also examined. Copyright © 2006 John Wiley & Sons, Ltd.