Results 21 to 30 of about 19,012,694 (264)

Perfectly Matched Layer for Accurate FDTD for Anisotropic Magnetized Plasma [PDF]

open access: yesJournal of Electromagnetic Engineering and Science, 2020
In this work, we propose a stable perfectly matched layer (PML) for accurate finite-difference time-domain (FDTD) methods for analyzing electromagnetic wave propagation in the anisotropic magnetized plasma region.
Jeahoon Cho   +2 more
doaj   +1 more source

Inferring Drumhead Damping and Tuning from Sound Using Finite Difference Time Domain (FDTD) Models

open access: yesAcoustics, 2023
Percussionists use a multitude of objects and materials, mounted on their instruments, to achieve a satisfying sound texture. This is a tedious process as there are no guidelines suggesting how to manipulate a percussion instrument to adjust its ...
Chrisoula Alexandraki   +3 more
doaj   +1 more source

Frequency‐dependent finite‐difference time‐domain method based on iterated Crank–Nicolson scheme

open access: yesElectronics Letters, 2023
The finite‐difference time‐domain (FDTD) method based on the iterated Crank–Nicolson (ICN) scheme is extended to a frequency‐dependent version. The Drude model is used to express a metal dispersion, which is incorporated into the iterated Crank–Nicolson ...
Jun Shibayama   +3 more
doaj   +1 more source

Modelling metallic discontinuities with the non-orthogonal finite difference time domain method [PDF]

open access: yes, 2004
Numerical electromagnetic models, such as the finite difference time domain (FDTD) method, have many applications. The authors focus on the non-orthogonal FDTD method, which offers an improved geometric flexibility compared to other standard techniques ...
Nilavalan, R, Railton, CJ, Craddock, IJ
core   +1 more source

A Novel Piecewise Linear Recursive Convolution Approach for Dispersive Media Using the Finite-Difference Time-Domain Method [PDF]

open access: yes, 2014
Two novel methods for implementing recursively the convolution betweenthe electric field and a time dependent electric susceptibility function inthe finite-difference time domain (FDTD) method are presented.
Giannakis, Iraklis   +2 more
core   +1 more source

Scattering Evaluation of Equivalent Surface Impedances of Acoustic Metamaterials in Large FDTD Volumes Using RLC Circuit Modelling

open access: yesApplied Sciences, 2021
Most simulations involving metamaterials often require complex physics to be solved through refined meshing grids. However, it can prove challenging to simulate the effect of local physical conditions created by said metamaterials into much wider ...
Eric Ballestero   +6 more
doaj   +1 more source

Analyzing electromagnetic structures with curved boundaries on Cartesian FDTD meshes [PDF]

open access: yes, 1998
In this paper, a new finite-difference time-domain (FDTD) algorithm is investigated to analyze electromagnetic structures with curved boundaries using a Cartesian coordinate system. The new algorithm is based on a nonorthogonal FDTD method. However, only
Railton, CJ, Hao, Y
core   +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

An analytical and numerical analysis of several locally conformal FDTD schemes [PDF]

open access: yes, 1999
The virtues of the finite-difference time-domain (FDTD) method for the electromagnetic analysis of arbitrary complex metal and dielectric structures are well known.
Schneider, JB, Railton, CJ
core   +1 more source

Oscillator Finite-Difference Time-Domain (O-FDTD) electric field propagation model: integrated photonics and networks [PDF]

open access: yesEPJ Web of Conferences, 2021
The recently developed Lorentz Oscillator Model-inspired Oscillator Finite-Difference Time-Domain (O-FDTD) is one of the simplest FDTD models ever proposed, using a single field equation for electric field propagation.
Adão Ricardo M. R.   +4 more
doaj   +1 more source

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