ANSOFT_HFSS培训教材系列1(英文).docx

AnsoftHighFrequency

StructureSimulator(HFSS)

Training

Version7,withOptimetricsTM

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AnsoftHFSSVersion7

Training

Section1:Introductionto

HFSSandtheFinite

ElementMethod

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SynopsisofIntroduction

GeneralFEMIntroduction,Usage,andDefinitions

FEMinElectromagnetics

Positioningvs.OtherSolutionTechniques

PossibleApplications

HighFrequencyStructureSimulatorIntroduction

TheHFSSFieldEquationandMatrixSolution

HFSS“Adaptive”Convergence

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WhatisFiniteElementMethod(FEM)

Software?

FEMsoftwareisadesigntoolforengineersand

physicists,utilizingrapidcomputationstosolve

largeproblemsinsolublebyanalytical,closed-form

expressions

The“FiniteElementMethod”involvessubdividingalarge

problemintoindividuallysimpleconstituentunitswhich

areeachsolubleviadirectanalyticalmethods,then

reassemblingthesolutionfortheentireproblemspaceas

amatrixofsimultaneousequations

FEMsoftwarecansolvemechanical(stress,

strain,vibration),aerodynamicorfluidflow,

thermal,orelectromagneticproblems

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FEMProblemConstraints

Geometrycanbearbitrary,3-dimensional

Model‘subdivision’isgenerallyaccomplishedbyuseof

tetrahedralorhexahedral(brick)elementswhichare

definedtofillanyarbitrary3Dvolume

BoundaryConditionswithinandwithoutproblem

canbevariedtoaccountfordifferentcharacteristics,symmetryplanes,etc.

Sizeconstraintsarepredominantlysetby

availablememoryanddiskspaceforstorageand

solutionoftheproblemmatrix

Solutioncreatedisinthefrequencydomain,assumingsteady-statebehavior

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MajorIndustriesusingFEMSoftware

Communications/Telecom

Aerospace/Aviation

Automotive

Power

ConsumerElectronics(Audio/Visual,Computer)

Medical(Imaging,ElectricalEquipment)