Results 111 to 120 of about 744 (154)

Parallel implementation of the ADI‐FDTD method

Microwave and Optical Technology Letters, 2009
AbstractWe present a parallel implementation of the three‐dimensional alternating direction implicit finite‐difference time‐domain (ADI‐FDTD) method in Cartesian coordinates using the message passing interface (MPI) library. Parallel implementations not only speed up computations but also increase the maximum solvable problem size.
T. Stefański, T. D. Drysdale
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A compact higher‐order ADI‐FDTD method

Microwave and Optical Technology Letters, 2004
AbstractA 2D higher‐order alternating‐direction‐implicit (ADI) finite‐difference time‐domain method based on a compact scheme is presented in this paper. This compact ADI method improves the efficiency of computation by reducing the bandwidth of the matrix to be inversed from seven to five for the 4th‐order scheme.
Weiming Fu, Eng Leong Tan
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Error-Optimized ADE-ADI FDTD for Plasma

IEEE Antennas and Wireless Propagation Letters, 2016
An error-optimized auxiliary differential equation–alternating direction implicit (ADE-ADI) finite-difference time domain (FDTD) method for isotropic nonmagnetized plasma is proposed based on the ADE technique. The error-optimized technique based on the Crank–Nicolson scheme is more tractable than the previous published methods. The iteration method is
Song Wanjun, Zhang Hou
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Dispersion and asymmetry effects of ADI-FDTD

IEEE Microwave and Wireless Components Letters, 2002
In this paper, a generalized derivation of the alternating direction implicit finite-difference time-domain algorithm based on operator splitting is proposed. The formulation follows the notation of the finite integration technique. A straightforward proof of stability is given and the numerical dispersion formula is presented and verified by numerical
M. Darms, R. Schuhmann, H. Spachmann, T. Weiland   +3 more
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Optimization of CFS-PML Parameters for FD-ADI-FDTD

2006 IEEE Antennas and Propagation Society International Symposium, 2006
The frequency dependent alternating direction-implicit finite difference time domain (FD-ADI-FDTD) method is designed to handle FD materials and there is to date no study of the influence of FD materials on the complex frequency-shifted perfectly matched layer (CFS-PML) parameters.
Thiry, Arnaud, Costen, Fumie, Brown, Anthony   +2 more
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Low numerical dispersion two-dimensional (2,4) ADI-FDTD method

IEEE Transactions on Antennas and Propagation, 2006
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Sun, M. K., Tam, W. Y.
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A Leapfrog Formulation of the 3D ADI-FDTD Algorithm

2007 Workshop on Computational Electromagnetics in Time-Domain, 2007
AbstractWe introduce a new, alternative form of the 3‐D alternating direction implicit finite‐difference time‐domain (ADI‐FDTD) algorithm that has a number of attractive properties for electromagnetic simulation. We obtain a leapfrog form of the time‐advance equations, where the E and H fields are staggered at half‐integer and integer time steps ...
Cooke, S. J., Botton, M., Antonsen, T. M., Levush, B.   +3 more
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Pre-iterative ADI-FDTD method for conductive medium

IEEE Transactions on Microwave Theory and Techniques, 2005
An efficient accuracy-improvement scheme is proposed to analyze electromagnetic problems with conductive medium. This scheme is based on interpreting the alternating-direction implicit finite-difference time-domain (ADI-FDTD) method as a special iterative solver for the Crank-Nicholson scheme. By applying an additional number of iterations to locations
null Shumin Wang, null Ji Chen
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Development of a higher‐order ADI‐FDTD method

Microwave and Optical Technology Letters, 2003
AbstractIn this paper, a higher‐order alternative‐direction‐implicit (ADI) finite‐difference time‐domain (FDTD) method is presented. The dispersion analysis is performed and the results are compared with those derived from the regular ADI‐FDTD method.
Zhu Wang, Ji Chen, Yinchao Chen
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Absorbing boundary conditions in leapfrog ADI-FDTD method

2017 Progress in Electromagnetics Research Symposium - Fall (PIERS - FALL), 2017
In this paper, the performance of the absorbing boundary conditions (ABC's) in leapfrog alternating direction implicit (ADI) finite-difference time-domain (FDTD) method is investigated in detail. In the leapfrog ADI-FDTD method, the ABC's must be applied to both the electric and magnetic field.
Yunyang Dong, Jianyi Zhou
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