Higher-order alternative direction implicit FDTD method

Higher-order alternative direction implicit FDTD method

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A second-order in time and fourth-order in space alternative direction implicit (ADI) finite difference time domain (FD-TD) method has been developed. The dispersion relation is derived and compared with the ADI-FDTD method. Numerical results demonstrated that the higher-order ADI-FDTD has a better accuracy compared to the ADI-FDTD method.


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