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HFSS的后处理及场计算器入门电子科技大学贾宝富AnsoftHFSS的后处理(Results)
CreateReport可绘制图形
Eigenmodesolution(本征模解)EigenmodeParameters(modes)(本征模参数图形)DrivenModalSolution(驱动模式解)S-parameters(S参数图形)Y-parameters(Y参数图形)Z-parameters(Z参数图形)VSWR(驻波比) Gamma(complexpropagationconstant)(复数形式的传播常数)PortZo(端口波阻抗)DrivenTerminalSolution(终端驱动解)S-parameters(S参数图形)Y-parameters(Y参数图形)Z-parameters(Z参数图形)VSWR(驻波比) Power(功率)VoltageTransformmatrix(T)(电压传输矩阵)TerminalPortZo(端口波阻抗)可绘制图形Fields(场)Mag_EMag_HMag_JvolMag_JsurfComplexMag_EComplexMag_HComplexMag_JvolComplexMag_JsurfLocal_SAR(SpecificAbsorptionRate)Average_SAR注:在绘制场图前必须先选择一个面或者一个多点线。AnsoftHFSS的后处理(Results)SolutionDataAnsoftHFSS的后处理(Results)OutputVariablesAnsoftHFSS的后处理(Fields)FieldsAnsoftHFSS的后处理(Radiation)RadiationWhatisTimeDomainReflectometry?TimeDomainReflectometry(TDR)measuresthereflectionsthatresultfromasignaltravellingthroughatransmissionenvironmentofsomekind–acircuitboardtrace,acable,aconnectorandsoon.TheTDRinstrumentsendsapulsethroughthemediumandcomparesthereflectionsfromtheunknowntransmissionenvironmenttothoseproducedbyastandardimpedance.TheReflectionCoefficientTDRmeasurementsaredescribedintermsofaReflectionCoefficient,(rho).Thecoefficientristheratioofthereflectedpulseamplitudetotheincidentpulseamplitude:CalculatingtheImpedanceoftheTransmissionLineandtheLoadShortandopencircuitterminationsMatchedandmismatchedloadterminationsCapacitiveandinductiveloadterminationsCapacitiveandinductivediscontinuitiesMixedcapacitiveandinductiveloadingTheTDRwaveformrevealstracediscontinuitiesHFSSFieldCalculator:DefinitionAtoolforperformingmathematicaloperationsonALL
savedfielddatainthemodeledgeometryE,H,J,andPoyntingdataavailablePerformoperationsusingdrawinggeometryornewgeometrycreatedinPost3Performoperationsatsinglefrequency(interpolatingordiscretesweeps)orotherfrequencies(fastsweep)Generatenumerical,graphical,geometricalorexportabledataMacro-enabled表达式操作区指定数据关联场计算器操作区场计算器分区表达式操作区建立表达式使用“Add”键,由场计算器堆栈导入表达式;使用“LoadFrom”键,由场计算器表达式文件(*.clc)导入表达式;输出表达式使用“Copytostack”键,将已存在的表达式导出到场计算器堆栈;使用“Saveto”键,将已存在的表达式保存成场计算器表达式文件(*.clc);指定关联区指定场计算器使用数据的出处。指定求解设置指定场类型;指定频率指定相位HFSSFieldCalculator:BasicLayoutStackOperations:ButtonformanipulatingstackDatastack:Containscurrentandsavedentriesinascrollingstacksimilartoahand-heldscientificcaculator.CalculatorFunctions:Orgnizedgroupingsofalltheavaliablecalculatorfunctionsinbuttonformat.Somebuttonscontainfurtheroptionsasdrop-downmenusStatusBar(notcurrentlyshown):HFSSFieldCaculator:DataTypesThecalculatiorvcanmanipulatemanydifferenttypesofdataGeometricComplexVectorScalarDatatypesareindicatedinthecalculatorstackforeachentryMostcalculatoroperationsareonlyavailableontheappropriatedatatype(s)GeometricsurfacegeneratedalongEfieldiso-valuecontourVectordataoutputtoaplanegeometryScalarE-fielddatagraphedalongalinegeometryHFSSFieldCalculator:DataIndicatorsEachstackentrywillbeprecededbyauniquecodedenotingitsdatatypeMathematical:CVc:ComplexVectorVec:VectorCSc:ComplexScalarScl:ScalarGeometric:Pnt:PointLin:LineSrf:SourfaceVol:VolumeCombinationscanalsoexistE.g.“SclSrf”:ScalardatadistributedonaSurfacegeometryCACULATORUSAGEHINT:Mostdatainputtypeswillbeself-explanatory,e.g.EandHfieldsbeingphasorquantitieswillbeComplexVector(CVc).TheonlyexceptiontothisruleisthePoyntinginput,Whichwillshowupasa“CVc”eventhoughEXH*shouldhavenoimaginarycomponent.Thecalculatoronlyknowsthattwocomplexvectorwerecrossed,anddoesnotknowaheadoftimethattheimaginarycomponenthasbeenzeroed.HFSSFieldCalculator:DetailLayout-StackAsdataisenteredintothecalculatoritappearsattheTOPofthestack,pushingolderentriesDOWNUNDOattemptstotakebackthelastoperationbetweenstackenties.Itmaynotworkforalldatatypes(e.g.theresultofapuremathoperationcannotbereversed)CLEARdeletesALLentriesfromthestackuponconfirmationEXCHexchangesorswapsthetoptwostackentriesPUSHduplicatesthetopstackentryPOPdeletesthetopentryoffthestackRLDN“rolls”thestackdownward,movingthetopentrytothebottomRLUP“rolls”thestackupward,movingthebottomentrytothetopHFSSFieldCalculator:DetailLayout-OperationsSCALARcolumnoperationscanonlybeperformedonScalardata(notcomplexorvectordata),suchasfindingtheCosineofavalueusingthetrigfunctions.OUTPUTcolumnoperationsresultinthegenerationofcalculatoroutputs,ineithernumerical,graphical(displayedas2Dgraphsorinthe3Dview),orexportedform.VECTORcolumncontainsoperationstobeperformedonvectordatasuchasconvertingtoscalar,DotandCrossproducts,andUnitVectorcomputationsGENERALcolumncontainsoperationswhichcanbeperformedonmanydatatypes(e.g.addingscalarvaluesoraddingvectors)INPUTcolumncontainalloperationswhichinputnewdataintothestack(fielddata,constant,user-enteredvectororcomplexnumbers,etc.Allcalculatoroperationsareorgnizedintocolumnsclassifyyingthembythetypeofoperationandthetypeofthedatauponwhichtheoperationcanbeperformed.HFSSFieldCalculator:DetailLayout-ExplodedViewHFSSFieldCalculator:Usage-OverviewUsejustlikeascientificcalculatorSimilartoHPscientificcalculators“FirstQuantity”,”SecondQuantity”Then“Operation”RememberstackfillsfromtheTopandpushesoldercontentsbelow.GeneraluseprogressesfromlefttorightInputquantityorquantitiesatleftPerformoperationsinmiddleOperatebetweenquantities;applyquantitiestogeometries,etc.Definedesiredoutputtypeatright.CalculatorUsageHINT:
AnyTimeyouusethefieldpost–processortoplotaquantity(PlotFields),youareactuallyperformingoperationsusingthecalculator!!Toseethestepsthatwentintothegeneratingtheplotyoujustcreated,openthecalculatorinterfaceandviewthestackcontents.Thiscanoftenhelpguideyouasyoutrytousethecalculatortocreatedyourowncustomoutputs.HFSSFieldCalculator:Usage-ChangingDataTypesAsdiscussedpreviously,Manyoperationsmustbeonthecorrectdatatype.Manyoperationsresultinadifferentdatatypethantheinputs.Ex1:TheDot
productoftwoVectorisaScalar.Ex2:ObtainingtheUnitVecNormaltoaSurfGeneratesaVector.Somecalculatorbuttonsexistprimarilytoassistintypeconversion.Vec?ConvertsScltoVecdataScal?DoesthereverseCmplxRealorCmplxImagtakesaSclcomponentfromaCScorCVc.CmplxCmplxRorCmplxCmplxItakeaVecorSclcomponentandmakeittherealorimaginarypartofacomplexvalueCVcorCSc,respectively.Alwaysthinkofwhattypeofdatayouareworkingwithandwhetherornotitiscompatiblewithyourdesiredoperation.Forexample,nottheINTEGRALsignisintheScalarcolumn,implyingthattointegratecomplexnumbersyouwillhavetointegratetherealandimaginarycomponentsseparately,performinganintegrationbyparts.HFSSFieldCalculator:Usage-InputTypesTheavailablefieldinputsareE:ThecomplexvectorEfielddataeverywhereinthemodeledgeometry;H:ThecomplexvectorHfielddataeverywhereinthemodeledgeometry;Poynting:Thetime-averagePoyntingvectorcomputedfromaboveas(E×H*):Jvol:Currentdensityinavolume,computedas(σ+jωε”)Ewhichcontainbothconductionanddisplacementcurrent;Jsurf:Netsurfacecurrentcomputedasn×(H|toptetrahedra-H|bottomtetrahedra):Unlikeotherquantities,Jsurfcanonlybeoutputonanobjectsurfacegeometry.EHJsurfJvolPoyntingEandHarePeakPhasorrepresentationofthesteadystatefields.ThereforethecurrentrepresentationJderivedfromn×HorσEarealsopeakphasorquantities.ThePoyntingVectorinputisatime-averagedquantity.HFSSFieldCalculator:Usage-OutputTypesDifferentdataoutputcanbegenerateddependingonselectedOutputcolumnbuttonandstackcontent(s):Valueisusedtotakethe“value”ofafieldstackentryonaspecificgeometry;Evalturnstackplaceholdertextintofinalnumericalanswer;WriteandExportoutputsstackdatatooutputfileformatsforuseoutsidethecalculatororcurrentproject.HFSSFieldCalculator:Usage-PossibleOperationsAslongasyoucanperformthemathusingtheinterface,thereisnorestrictiononthepossiblecalculatoroperationsavailable:Outputsderivedcanbeotherthan“Electromagnetic”innature;PureGeometricoperations(vectorandsurfacecrossanddotproducts,generationofiso-surfacecontoursfromanyscalardatafieldimp
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