An intuitive error analysis for FDTD and comparison to MoM |
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| Authors: | Warnick K.F. |
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| Affiliation: | Dept. of Electr. & Comput. Eng., Brigham Young Univ., Provo, UT, USA; |
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| Abstract: | The accuracy of the Finite-Difference Time-Domain (FDTD) algorithm is commonly treated in two ways: a local analysis of the error in a finite-difference stencil, and the numerical dispersion relation for plane-wave propagation. This article presents a simple solution error estimate that connects these two approaches. This error estimate is nearly identical to a solution error estimate for the Method of Moments, except that the FDTD error includes an additional dependence on the electrical problem size. |
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