Results 1 to 10 of about 21,747 (199)

The HIE-FDTD Method for Simulating Dispersion Media Represented by Drude, Debye, and Lorentz Models [PDF]

open access: yesNanomaterials, 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

Parallel Implementation of the Discrete Green's Function Formulation of the FDTD Method on a Multicore Central Processing Unit [PDF]

open access: yesRadioengineering, 2014
Parallel implementation of the discrete Green's function formulation of the finite-difference time-domain (DGF-FDTD) method was developed on a multicore central processing unit.
T. Stefański, S. Orłowski, B. Reichel
doaj   +5 more sources

A RT-FDTD method of analyzing wireless propagation characteristics in underground mine [PDF]

open access: yesScientific Reports
Efficient 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

Compound FDTD method for silicon photonics [PDF]

open access: yesAIP Advances, 2011
Attempt to manufacture photonics devices on silicon requires theoretical and numerical prediction. This essay presents Compound FDTD (C-FDTD) method for comprehensive simulation of silicon photonics devices.
Abbas Olyaee, Farzad T. Hamadani
doaj   +2 more sources

Unified GSTC-FDTD Algorithm for the Efficient Electromagnetic Analysis of 2D Dispersive Materials [PDF]

open access: yesJournal 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

open access: yesIEEE 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

open access: yesAxioms, 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

open access: yesResults 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

Comparison of the shape of focal spots in terms of intensity and energy flux for a high-aperture zone plate and a spiral zone plate

open access: yesКомпьютерная 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

open access: yesApplied 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

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