Abstract
By introducing extra degree of freedom into the space-domain stencils, an isotropy-improved nonstandard finite-difference (NSFD) (2,2) method is presented in this paper. The technique is also extended to the higher-order (2,4) stencils. Both analytical and numerical results are presented and compared to demonstrate the accuracy and the strengths of these methods.
Original language | English (US) |
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Pages (from-to) | 1935-1942 |
Number of pages | 8 |
Journal | IEEE Transactions on Antennas and Propagation |
Volume | 54 |
Issue number | 7 |
DOIs | |
State | Published - Jul 2006 |
Keywords
- Dispersion
- Finite-difference time-domain (FDTD) methods
- Isotropy
- Nonstandard
ASJC Scopus subject areas
- Electrical and Electronic Engineering