Results 21 to 30 of about 107 (102)
International Journal of Numerical Modelling: Electronic Networks, Devices and Fields, Volume 33, Issue 2, March/April 2020., 2020 Abstract A unified 3‐D alternating‐direction‐implicit finite‐difference time‐domain algorithm with one‐step leapfrog approach is provided for analyzing the frequency‐dependent dispersive media. The dielectric parameter in the frequency domain is described by the modified Lorentz model.
Guoda Xie +3 more
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Geofluids, Volume 2020, Issue 1, 2020., 2020 The finite‐difference time‐domain (FDTD) method adopts the most popular numerical model simulating ground penetrating radar (GPR) wave propagation in an underground structure. However, a staircase approximation method is usually adopted to simulate the curved boundary of an irregular object in the FDTD and symplectic partitioned Runge‐Kutta (SPRK ...
Man Yang +5 more
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ADI-FDTD method including linear lumped networks
Electronics Letters, 2006 A three-dimensional alternating-directional-implicit finite-difference time-domain (ADI-FDTD) method including linear lumped networks is presented. In addition, a numerical experiment is performed for validation of the proposed scheme, as well as the higher computation efficiency achieved.
W. Fu, E.L. Tan
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ADI-FDTD Method With Fourth Order Accuracy in Time [PDF]
IEEE Microwave and Wireless Components Letters, 2008 This letter presents an unconditionally stable alternating direction implicit finite-difference time-domain (ADI-FDTD) method with fourth order accuracy in time. Analytical proof of unconditional stability and detailed analysis of numerical dispersion are presented.
Tan, Eng Leong, Heh, Ding Yu
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UNCONDITIONALLY STABLE LEAPFROG ADI-FDTD METHOD FOR LOSSY MEDIA [PDF]
Progress In Electromagnetics Research M, 2012 This paper presents an unconditionally stable leapfrog alternating-direction-implicit flnite-difierence time-domain (ADI- FDTD) method for lossy media. Conductivity terms of lossy media are incorporated into the leapfrog ADI-FDTD method in an anal- ogous manner as the conventional explicit FDTD method since the leapfrog ADI-FDTD method is a ...
Gan, Theng Huat, Tan, Eng Leong
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ADI-FDTD algorithm in curvilinear co-ordinates
Electronics Letters, 2005 The alternating direction implicit (ADI) scheme has been successfully applied to the finite-difference time-domain (FDTD) method to achieve an unconditionally stable algorithm. The ADI-FDTD method is extended to the curvilinear co-ordinate system to form an alternating direction implicit nonorthogonal FDTD (ADI-NFDTD) method. The numerical results show
W. Song, Y. Hao, C.G. Parini
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UNIFIED EFFICIENT FUNDAMENTAL ADI-FDTD SCHEMES FOR LOSSY MEDIA [PDF]
Progress In Electromagnetics Research B, 2011 This paper presents the unifled e-cient fundamen- tal alternating-direction-implicit flnite-difierence time-domain (ADI- FDTD) schemes for lossy media. The schemes presented include aver- aging, forward-forward, forward-backward and novel exponential time difierencing schemes. Uniflcations of these schemes in both conven- tional and e-cient fundamental
Heh, Ding Yu, Tan, Eng Leong
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Efficient solution on solving 3D Maxwell equations using stable semi-implicit splitting method
AIP Advances, 2016 In this paper, we propose an efficient solution on solving 3-dimensional (3D) time-domain Maxwell equations using the semi-implicit Crank-Nicholson (CN) method for time domain discretization with advantage of unconditional time stability. By applying the
Wei Cen, Ning Gu
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Complexity, Volume 2019, Issue 1, 2019., 2019 Accurate forward modeling is of great significance for improving the accuracy and speed of inversion. For forward modeling of large sizes and fine structures, numerical accuracy and computational efficiency are not high, due to the stability conditions and the dense grid number.
Hongyuan Fang +4 more
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International Journal of Antennas and Propagation, Volume 2019, Issue 1, 2019., 2019 Ground penetrating radar (GPR), as a kind of fast, effective, and nondestructive tool, has been widely applied to nondestructive testing of road quality. The finite‐difference time‐domain method (FDTD) is the common numerical method studying the GPR wave propagation law in layered structure.
Jianwei Lei +7 more
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