HFSS的后处理及场计算器的使用

HFSS的后处(Chu)理及场计算器入门电子科技大学贾宝富第一页，共四十八页。AnsoftHFSS的(De)后处理（Results）

CreateReport第二页，共四十八页。可绘制图(Tu)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）第三页，共四十八页。可绘制(Zhi)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。第四页，共四十八页。AnsoftHFSS的后处(Chu)理（Results）SolutionData第五页，共四十八页。AnsoftHFSS的后(Hou)处理（Results）OutputVariables第六页，共四十八页。AnsoftHFSS的后处(Chu)理（Fields）Fields第七页，共四十八页。第八页，共四十八页。AnsoftHFSS的(De)后处理（Radiation）Radiation第九页，共四十八页。WhatisTimeDomainReflectometry?TimeDomainReflectometry(TDR)measuresthereflectionsthatresultfromasignaltravellingthroughatransmissionenvironmentofsomekind–acircuitboardtrace,acable,aconnectorandsoon.TheTDRinstrumentsendsapulsethroughthemediumandcomparesthereflectionsfromtheunknowntransmissionenvironmenttothoseproducedbyastandardimpedance.第十页，共四十八页。TheReflectionCoefficientTDRmeasurementsaredescribedintermsofaReflectionCoefficient,(rho).Thecoefficientristheratioofthereflectedpulseamplitudetotheincidentpulseamplitude:第十一页，共四十八页。第十二页，共四十八页。CalculatingtheImpedanceoftheTransmissionLineandtheLoad第十三页，共四十八页。Shortandopencircuitterminations第十四页，共四十八页。Matchedandmismatchedloadterminations第十五页，共四十八页。Capacitiveandinductiveloadterminations第十六页，共四十八页。Capacitiveandinductivediscontinuities第十七页，共四十八页。Mixedcapacitiveandinductiveloading第十八页，共四十八页。TheTDRwaveformrevealstracediscontinuities第十九页，共四十八页。HFSSFieldCalculator:DefinitionAtoolforperformingmathematicaloperationsonALL

savedfielddatainthemodeledgeometryE,H,J,andPoyntingdataavailablePerformoperationsusingdrawinggeometryornewgeometrycreatedinPost3Performoperationsatsinglefrequency(interpolatingordiscretesweeps)orotherfrequencies(fastsweep)Generatenumerical,graphical,geometricalorexportabledataMacro-enabled第二十页，共四十八页。表达式操(Cao)作区指定数据关联场计算器操作区场计算器分区第二十一页，共四十八页。表(Biao)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）；第二十二页，共四十八页。指定关联(Lian)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；指定频率指定相位第二十三页，共四十八页。HFSSFieldCalculator:BasicLayoutStackOperations:ButtonformanipulatingstackDatastack:Containscurrentandsavedentriesinascrollingstacksimilartoahand-heldscientificcaculator.CalculatorFunctions:Orgnizedgroupingsofalltheavaliablecalculatorfunctionsinbuttonformat.Somebuttonscontainfurtheroptionsasdrop-downmenusStatusBar(notcurrentlyshown):第二十四页，共四十八页。HFSSFieldCaculator:DataTypesThecalculatiorvcanmanipulatemanydifferenttypesofdataGeometricComplexVectorScalarDatatypesareindicatedinthecalculatorstackforeachentryMostcalculatoroperationsareonlyavailableontheappropriatedatatype(s)GeometricsurfacegeneratedalongEfieldiso-valuecontourVectordataoutputtoaplanegeometryScalarE-fielddatagraphedalongalinegeometry第二十五页，共四十八页。HFSSFieldCalculator: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.第二十六页，共四十八页。HFSSFieldCalculator:DetailLayout-StackAsdataisenteredintothecalculatoritappearsattheTOPofthestack,pushingolderentriesDOWNUNDOattemptstotakebackthelastoperationbetweenstackenties.Itmaynotworkforalldatatypes(e.g.theresultofapuremathoperationcannotbereversed)CLEARdeletesALLentriesfromthestackuponconfirmationEXCHexchangesorswapsthetoptwostackentriesPUSHduplicatesthetopstackentryPOPdeletesthetopentryoffthestackRLDN“rolls”thestackdownward,movingthetopentrytothebottomRLUP“rolls”thestackupward,movingthebottomentrytothetop第二十七页，共四十八页。HFSSFieldCalculator:DetailLayout-OperationsSCALARcolumnoperationscanonlybeperformedonScalardata(notcomplexorvectordata),suchasfindingtheCosineofavalueusingthetrigfunctions.OUTPUTcolumnoperationsresultinthegenerationofcalculatoroutputs,ineithernumerical,graphical(displayedas2Dgraphsorinthe3Dview),orexportedform.VECTORcolumncontainsoperationstobeperformedonvectordatasuchasconvertingtoscalar,DotandCrossproducts,andUnitVectorcomputationsGENERALcolumncontainsoperationswhichcanbeperformedonmanydatatypes(e.g.addingscalarvaluesoraddingvectors)INPUTcolumncontainalloperationswhichinputnewdataintothestack(fielddata,constant,user-enteredvectororcomplexnumbers,etc.Allcalculatoroperationsareorgnizedintocolumnsclassifyyingthembythetypeofoperationandthetypeofthedatauponwhichtheoperationcanbeperformed.第二十八页，共四十八页。HFSSFieldCalculator:DetailLayout-ExplodedView第二十九页，共四十八页。HFSSFieldCalculator:Usage-OverviewUsejustlikeascientificcalculatorSimilartoHPscientificcalculators“FirstQuantity”,”SecondQuantity”Then“Operation”RememberstackfillsfromtheTopandpushesoldercontentsbelow.GeneraluseprogressesfromlefttorightInputquantityorquantitiesatleftPerformoperationsinmiddleOperatebetweenquantities;applyquantitiestogeometries,etc.Definedesiredoutputtypeatright.CalculatorUsageHINT:

AnyTimeyouusethefieldpost–processortoplotaquantity(PlotFields),youareactuallyperformingoperationsusingthecalculator!!Toseethestepsthatwentintothegeneratingtheplotyoujustcreated,openthecalculatorinterfaceandviewthestackcontents.Thiscanoftenhelpguideyouasyoutrytousethecalculatortocreatedyourowncustomoutputs.第三十页，共四十八页。HFSSFieldCalculator:Usage-ChangingDataTypesAsdiscussedpreviously,Manyoperationsmustbeonthecorrectdatatype.Manyoperationsresultinadifferentdatatypethantheinputs.Ex1:TheDot

productoftwoVectorisaScalar.Ex2:ObtainingtheUnitVecNormaltoaSurfGeneratesaVector.Somecalculatorbuttonsexistprimarilytoassistintypeconversion.Vec?ConvertsScltoVecdataScal?DoesthereverseCmplxRealorCmplxImagtakesaSclcomponentfromaCScorCVc.CmplxCmplxRorCmplxCmplxItakeaVecorSclcomponentandmakeittherealorimaginarypartofacomplexvalueCVcorCSc,respectively.Alwaysthinkofwhattypeofdatayouareworkingwithandwhetherornotitiscompatiblewithyourdesiredoperation.Forexample,nottheINTEGRALsignisintheScalarcolumn,implyingthattointegratecomplexnumbersyouwillhavetointegratetherealandimaginarycomponentsseparately,performinganintegrationbyparts.第三十一页，共四十八页。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.第三十二页，共四十八页。HFSSFieldCalculator:Usage-OutputTypesDifferentdataoutputcanbegenerateddependingonselectedOutputcolumnbuttonandstackcontent(s):Valueisusedtotakethe“value”ofafieldstackentryonaspecificgeometry;Evalturnstackplaceholdertextintofinalnumericalanswer;WriteandExportoutputsstackdatatooutputfileformatsforuseoutsidethecalculatororcurrentproject.第三十三页，共四十八页。HFSSFieldCalculator:Usage-PossibleOperationsAslongasyoucanperformthemathusingtheinterface,thereisnorestrictiononthepossiblecalculatoroperationsavailable:Outputsderivedcanbeotherthan“Electromagnetic”innature;PureGeometricoperations(vectorandsurfacecrossanddotproducts,generationofiso-surfacecontoursfromanyscalardatafieldimportedintothegeometry,etc)Thermalheatingcomputationsderivedfromfieldvaluescombinedwiththermalmasscharacteristicsandequations;IntegrationstoobtainsummaryquantitiessuchasQuanlity