Results 41 to 50 of about 96,959 (311)

Finite Difference Time-Domain Modelling of Metamaterials: GPU Implementation of Cylindrical Cloak

open access: yesAdvanced Electromagnetics, 2013
Finite difference time-domain (FDTD) technique can be used to model metamaterials by treating them as dispersive material. Drude or Lorentz model can be incorporated into the standard FDTD algorithm for modelling negative permittivity and permeability ...
A. Dawood
doaj   +1 more source

Modelling electromagnetic radiation from digital electronic systems by means of the finite difference time domain method [PDF]

open access: yes, 1992
The necessity for the control and minimisation of unintentional electromagnetic emissions from electrical systems has long been appreciated and much skilled effort is spent on EMI suppression.Due to the complexity of the problem, however, very little in ...
C.J. RaiIton   +7 more
core   +1 more source

Finite-Difference Time-Domain Simulations

open access: yes, 2021
This work discusses the Finite-Difference Time-Domain (FDTD) technique to simulate an electromagnetic wave assuming one, two and three dimensions. The propagation medium is assumed to be a free space bounded by two absorbing boundaries, perfect matched layer (PML) and perfect electric conductor (PEC).
openaire   +3 more sources

Effects of sources on time-domain finite difference models [PDF]

open access: yesThe Journal of the Acoustical Society of America, 2014
Recent work on excitation mechanisms in acoustic finite difference models focuses primarily on physical interpretations of observed phenomena. This paper offers an alternative view by examining the properties of models from the perspectives of linear algebra and signal processing.
Savioja, Lauri, Botts, Jonathan
openaire   +5 more sources

The analysis of general two-dimensional PEC structures using a modified CPFDTD algorithm [PDF]

open access: yes, 1996
The use of the contour path finite difference time domain (CPFDTD) method with locally distorted contours has been shown to give accurate results for curved metal structures.
Schneider, JB, Railton, CJ, Craddock, IJ
core   +1 more source

Subcell Treatment of Sloped Interfaces between Debye Materials in the FDTD Method

open access: yesJournal of Amasya University the Institute of Sciences and Technology, 2020
This paper presents the application of the subcell technique for the treatment of sloped interface in finite-difference time-domain method. The technique is based on the averaging of permittivities in each cell crossed by the material interface.
Kenan Tekbas
doaj  

FDTD Analysis of Electromagnetic Wave Propagation in an Inhomogeneous Ionosphere under Arbitrary-Direction Geomagnetic Field [PDF]

open access: yesJournal of the Korean Institute of Electromagnetic Engineering and Science, 2018
The finite-difference time-domain (FDTD) model was developed to analyze electromagnetic (EM) wave propagation in an inhomogeneous ionosphere. The EM analysis of ionosphere is complicated, owing to various propagation environments that are significantly ...
Jun-Ho Kweon   +3 more
doaj   +1 more source

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

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

Application of multisection recursive convolution in 3D FETD-FABC simulations [PDF]

open access: yes, 2008
The multisection recursive convolution (MS-RC) methodology is successfully applied to the finite element time domain floquet absorbing boundary condition modeling of doubly periodic structures.
Cai, Yong   +3 more
core   +1 more source

The inclusion of fringing capacitance and inductance in FDTD for the robust accurate treatment of material discontinuities [PDF]

open access: yes, 2000
The analysis of structures, which contain sharp material discontinuities using the finite-difference time domain method (but without resorting to a very fine mesh) although much researched, has not yet been definitively solved.
Railton, CJ
core   +1 more source

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