A. P. Zhao, "Two special notes on the implementation of the uncondi- tionally stable ADI-FDTD method," Microw. Opt. Technol. Lett., vol. 33, no. 4, pp. 273-277, 2002.An Ping Zhao.Two special notes on the implementation of the unconditionally stable ADI-FDTD method. Microwave and ...
US-FDTDweighted finite differencenumerical dispersionAlthough unconditionally stable (US), the accuracy of ADI-FDTD is not so high as that of conventional FDTD. In this paper, a high-order US-FDTD based on the weighted finite-difference method is presented. A strict analysis of stability shows ...
The bistatic RCS of conductive cylinder, conductive cylinder covered with plasma and conductive airfoil are calculated and the results are compared with those of available literature to validate the accuracy of the algorithm. The influence of different parameters such as incident frequency, plasma ...
A theory is developed, in a semi-discrete setting, that allows the use of a Cartesian grid on complex geometries, yet maintains the order of accuracy with only a linear temporal error-bound. A numerical example, involving the solution of Maxwell's equations inside a 2-D circular wave-guide...
Results show the new algorithm has better accuracy and higher efficiency than that of the ADI-SFDTD method, especially for large time step sizes. The CPU running time for this method can be reduced to about 45% of the ADI-SFDTD method....
(FEM) for spatial discretization and a Newmark time scheme coupled with a finite difference (Crank-Nicolson) time scheme for time sampling. Numerical experiments show the performances of the PML method in terms of accuracy, efficiency and stability for two-dimensional linear elastodynamic problems in...
From the theoretical stability analysis, it is found that the ADI-FDTD method with split-field PML will be unstable in the PML surface and inside the PML regions. The modified PML conductivity profiles are proposed to prevent the instabilities inside the PML regions. The effect of the PML ...
Yang Shun-chuan, Chen Zhi-zhang, Yu Yi-qiang, et al.. On the divergence properties of the new efficiency-improved divergence preserved ADI-FDTD method[C]. Proceedings of the IEEE MTT-S International Microwave Symposium Digest, Seattle, USA, 2013: 1-3....
Zhao, A. (2002), The influence of the time step on the numerical dispersion error of an unconditionally stable 3-D ADI-FDTD method: A simple and unified approach to determine the maximum allowable time step required by a desired numerical dispersion accuracy. Microw. Opt. Technol. Lett., 35...
Investigation reveals that the leapfrog ADI-FDTD method has substantial nonphysical field leakage within the target. To overcome the field leakage, a simple approach is proposed. Numerical results are presented to validate the proposed approach. 2014 Wiley Periodicals, Inc. Microwave Opt Technol Lett ...