Results 11 to 20 of about 22,120 (193)

Finite-difference time-domain (FDTD) method with non-homogeneous cells filled with voxels

open access: yesJournal of Computational Physics, 2023
This work was supported in part by EU Horizon 2020 Research and Innovation Programme under Marie Sklodowska-Curie Action under Grant 101066571.
Kenan Tekbaş, Jean-Pierre Bérenger
openaire   +3 more sources

Numerical Accuracy of Finite-Difference Time-Domain Formulations for Magnetized Plasma [PDF]

open access: yesJournal of Electromagnetic Engineering and Science, 2022
The finite-difference time-domain (FDTD) has been widely used to analyze electromagnetic (EM) wave propagation in complex dispersive media. Over the past three decades, a variety of FDTD approaches for the EM wave propagation in magnetized plasma has ...
Jeahoon Cho   +2 more
doaj   +1 more source

Using WCS-FDTD Method to Study the Plasma Frequency Selective Surface

open access: yesIEEE Access, 2019
The plasma is very useful to design the dynamically tunable Frequency Selective Surface (FSS) because of its tunable property. But it is difficult to simulate the plasma FSS by using the conventional finite-difference time-domain (FDTD) method, because ...
Juan Chen   +3 more
doaj   +1 more source

Faster and More Accurate Time Domain Electromagnetic Simulation Using Space Transformation

open access: yesIEEE Photonics Journal, 2020
A novel finite difference time domain (FDTD) method based on space transformations is developed that overcomes the inherent obstacles of the conventional FDTD algorithm in a spatially complex domain.
Mohammadrahim Kazemzadeh   +2 more
doaj   +1 more source

Investigation of numerical dispersion with time step of the FDTD methods: avoiding erroneous conclusions

open access: yesIET Microwaves, Antennas & Propagation, 2021
To obtain high accuracy and efficiency in the simulations, an optimum time step should be taken in finite‐difference time‐domain (FDTD) methods. The authors investigated how time steps impact on numerical dispersion of two FDTD methods including the FDTD(
Yu Cheng   +3 more
doaj   +1 more source

Research on karst collapse pillar imaging of water-rich area in coal mine

open access: yesGong-kuang zidonghua, 2019
In order to solve the problem that selection of time step was limited by Courant-Friedrich-Lewy stability condition in current finite-difference time-domain(FDTD) method commonly used in advanced detection transient electromagnetic method of water-rich ...
TIAN Feng, JIAO Cuicui, HAN Xiaobing
doaj   +1 more source

A New Efficient Algorithm for the 2D WLP-FDTD Method Based on Domain Decomposition Technique

open access: yesInternational Journal of Antennas and Propagation, 2016
This letter introduces a new efficient algorithm for the two-dimensional weighted Laguerre polynomials finite difference time-domain (WLP-FDTD) method based on domain decomposition scheme.
Bo-Ao Xu   +4 more
doaj   +1 more source

Analysis of Microstrip Circuit by Using Finite Difference Time Domain (FDTD) Method [PDF]

open access: yesProceedings of the 2nd International Symposium on Computer, Communication, Control and Automation, 2013
The microstrip circuit is mostly analyzed in transform domain, because its equivalent circuit equation is often nonlinear differential equation, which is easily analyzed in transform domain relatively, but hardly did in time domain, so the analysis of microstrip circuit is a hard work in time domain.
Lei Zhang   +3 more
openaire   +1 more source

Parallel processing techniques in EMP propagation using 3D Finite-Difference Time-Domain (FDTD) method [PDF]

open access: yesAdvances in Engineering Software, 1993
The authors have applied the 3D FDTD technique to simulate the propagation of electrical signals on a microstrip antenna using a four-transputer array connected to a 386-based PC. This relates to work currently being carried out into the propagation of very high speed digital pulse in printed circuit boards in high bandwidth systems.
Buchanan, William J, Gupta, Naren K
openaire   +1 more source

Non-standard and Numerov finite difference schemes for finite difference time domain method to solve one-dimensional Schrödinger equation

open access: yesJournal of Physics: Theories and Applications, 2018
The purpose of  this paper is to show some improvements of the finite-difference time domain (FDTD) method using Numerov and non-standard finite difference (NSFD) schemes for solving the one-dimensional Schrödinger equation.
Lily Maysari Angraini, I Wayan Sudiarta
doaj   +1 more source

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