ITRI-NTU 3D-FDTD

出自 DDCC TCAD TOOL Manual
於 2018年12月5日 (三) 11:56 由 Mike (對話 | 貢獻) 所做的修訂 (Input file 1: commands and parameters)

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3D-FDTD is named from three dimensional finite difference time domain method. This program models computational electrodynamics which is refer to the book Computational Electrodynamics: The Finite-Difference Time-Domain Method, Third Edition, by Allen Taflove.


Input file 1: commands and parameters

Be careful: Although most sequences of functions are not important, the function $NumberofObject MUST appear before the function $MaterialStructure and $MaterialParameter.

Files setting

$SParameterDirectory

$OutputDirectory

$OutputName

$OutputMaxReflection


Time setting

$TimeStep

$OutputStep


Space setting

$SpaceRegion

$CellNumber

$Deltaxyz

$BCsetting

$PMLlayer


Source setting

$SourceType

$SourcePosition

$SourceFrequency


Material setting

$NumberofObject

$MaterialStructure

$MaterialParameter


Near-to-Far-Field setting

$NTFFposition

$NTFFparameter

Input file 2: commands and parameters

Note: You can run the FDTD program WITHOUT the input file 2. However, if using this, you should really know the meaning of each function and parameter; otherwise, the program may not execute correctly as you change any default parameter.


$SaveType

$CourantFactor

$Backgroundparameter

$CPML_m

$CPML_max_kapa

$CPML_ma

$CPML_max_a

$CPML_ratio_maxsigma

$IncCPMLpar

$Output1Dincident

The format of output files

These pages present text format. XX means it could be Ex, Ey, Ez, Hx, Hy, or Hz. And n represents the time step.

Setting results

*.gn

*.ind

*.XX.ps

*.fld.par

*.pml.par

*.typ.par

*.so.time

*.so.freq

Results at certain time step (n)

*.step-n.XX.dat

*.step-n.inc.dat

*.refl

The meaning of the parameters in source codes