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The unconditionally stable Crank Nicolson FDTD method for three-dimensional Maxwell's equations

✍ Scribed by Y. Yang; R. S. Chen; Edward K. N. Yung

Publisher
John Wiley and Sons
Year
2006
Tongue
English
Weight
156 KB
Volume
48
Category
Article
ISSN
0895-2477

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✦ Synopsis

In this paper, an accurate and computationally implicit 3D finite-difference time-domain (FDTD) method based on the unconditionally stable Crank-Nicolson scheme (3D CN-FDTD) is presented. The source excitation in 3D CN-FDTD is described and the numerical simulation of the 3D CN-FDTD method is demonstrated through numerical examples. The results of this method, the ADI-FDTD method, and traditional FDTD schemes are compared. A good agreement is obtained for the 3D CN-FDTD method with time steps greatly more than the Courant-Friedrich-Levy (CFL) limit and the traditional Yee FDTD method.

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