Results 11 to 20 of about 7,310 (213)
The HIE-FDTD Method for Simulating Dispersion Media Represented by Drude, Debye, and Lorentz Models [PDF]
Nanomaterials, 2023 The hybrid implicit–explicit finite-difference time-domain (HIE-FDTD) method is a weakly conditionally stable finite-difference time-domain (FDTD) method that has attracted much attention in recent years. However due to the dispersion media such as water,
Juan Chen, Chunhui Mou
doaj +2 more sources
A RT-FDTD method of analyzing wireless propagation characteristics in underground mine [PDF]
Scientific ReportsEfficient communication is crucial in reducing injuries and fatalities in coal mine accidents, necessitating the study of simulation methods for mine communication.
Xiaoyan Song, Gaomin Zhang, Chang Zhou
doaj +2 more sources
Unified GSTC-FDTD Algorithm for the Efficient Electromagnetic Analysis of 2D Dispersive Materials [PDF]
Journal of Electromagnetic Engineering and Science, 2023 The finite-difference time-domain (FDTD) method has been widely used for the electromagnetic wave analysis of complex media. Conventional FDTD analyses of very thin two-dimensional (2D) dispersive materials require overwhelming computing resources ...
Sangeun Jang +3 more
doaj +1 more source
Partially Implicit FDTD (PI-FDTD) Method for Lower Dispersion and Anisotropic Errors
IEEE Access, 2022 A new partially implicit 3D FDTD (PI-FDTD) method is introduced. The method is not unconditionally stable, but its stability limit is 6 times higher than that of the classic Yee’s FDTD method.
Mehmet Kusaf, Abdullah Yucel Oztoprak
doaj +1 more source
From Time-Collocated to Leapfrog Fundamental Schemes for ADI and CDI FDTD Methods
Axioms, 2022 The leapfrog schemes have been developed for unconditionally stable alternating-direction implicit (ADI) finite-difference time-domain (FDTD) method, and recently the complying-divergence implicit (CDI) FDTD method.
Eng Leong Tan
doaj +1 more source
Hybrid FDTD algorithm for electromagnetic analysis of fine structures
Results in Physics, 2021 A new hybrid Finite-Difference Time-Domain (hybrid FDTD) algorithm is proposed in this paper. This hybrid FDTD method combines the superiorities of explicit unconditionally stable FDTD (US-FDTD) and traditional FDTD methods to achieve unconditional ...
Sihan Zhao +4 more
doaj +1 more source
Компьютерная оптика, 2022 Using a finite-difference time-domain method, it has been shown that focal spots generated when tightly focusing a linearly polarized Gaussian beam by a Fresnel zone plate (FZP) and when focusing a Gaussian beam with an embedded optical vortex by a ...
A.A. Savelyeva, E.S. Kozlova
doaj +1 more source
Modeling GPR Wave Propagation in Complex Underground Structures Using Conformal ADI-FDTD Algorithm
Applied Sciences, 2022 Ground Penetrating Radar (GPR) is a shallow geophysical method for detecting and locating subsurface targets. The GPR image echo characteristics of complex underground structures can be obtained by carrying out GPR forward modeling research.
Yinping Li +4 more
doaj +1 more source
Numerical Accuracy of Finite-Difference Time-Domain Formulations for Magnetized Plasma [PDF]
Journal 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
IET 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