Results 11 to 20 of about 8,562 (255)

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

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

Narrow strip above ground plane transmission line formulation in the FDTD algorithm [PDF]

open access: yes, 2004
A number of thin wire formalisms for use in the FDTD method have been published over the years. One such formalism was published by Holland and Simpson (IEEE Trans., EMC-23, no. 2, pp. 88-97, 1981). Later, Ledfelt (Ph.D.
C.J. Railton   +5 more
core   +1 more source

The treatment of geometrically small structures in FDTD by the modification of assigned material parameters [PDF]

open access: yes, 2005
A number of different improvements to the analysis by finite-difference time-domain (FDTD) of small structures, such as wires, strips and slots have been proposed in the literature.
Paul, DL   +3 more
core   +1 more source

The treatment of thin wire and coaxial structures in lossless and lossy media in FDTD by the modification of assigned material parameters [PDF]

open access: yes, 2006
It has been shown recently that the use of modified assigned material parameters (MAMPs) within the finite-difference time-domain (FDTD) method provides a systematic, readily extensible, accurate, and efficient approach to the electromagnetic analysis of
Paul, DL, Dumanli, S, Railton, CJ
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

Rotated Subgrids in the FDTD Method [PDF]

open access: yesIEEE Transactions on Antennas and Propagation, 2016
Although the finite-difference time-domain (FDTD) method is well established for addressing a wide variety of problems, a long standing challenge is to reduce discretization errors while avoiding the use of impractically large numbers of cells, particularly when the structure is large and contains regions of fine detail. One solution is to use subgrids,
openaire   +2 more sources

Large-scale FDTD computation for computational electromagnetics [PDF]

open access: yes, 2004
Our recent studies related to the large-scale FDTD computation for computational electromagnetics are presented as an activity report. In this paper, high accuracy FDTD methods and the FDTD parallel computaion are described.
Kashiwa, Tatsuya
core   +1 more source

Comprehensive Numerical Analysis of Finite Difference Time Domain Methods for Improving Optical Waveguide Sensor Accuracy

open access: yesSensors, 2016
This paper discusses numerical analysis methods for different geometrical features that have limited interval values for typically used sensor wavelengths.
M. Mosleh E. Abu Samak   +3 more
doaj   +1 more source

FPGA Acceleration of 3D FDTD for Multi- Antennas Microwave Imaging Using HLS

open access: yesIEEE Access, 2021
Microwave Imaging (MI) for biomedical applications has attracted attention due to its harmless radiation compared to X-ray or MRI. One of the commonly used computing methods in MI is Finite Difference Time Domain (FDTD), which is executed several times ...
Mohammad Amir Mansoori   +2 more
doaj   +1 more source

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