微波无源电路仿真技术课件

场计算器场计算器1场计算器基本界面AtoolforperformingmathematicaloperationsonALL

savedfielddatainthemodeledgeometryE,H,J,andPoyntingdataavailablePerformoperationsusingdrawinggeometryornewgeometrycreatedinPost3Performoperationsatsinglefrequency(interpolatingordiscretesweeps)orotherfrequencies(fastsweep)Generatenumerical,graphical,geometricalorexportabledataVBS-enabled场计算器基本界面Atoolforperforming2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指定数据关联场计算器操作区场计算器分区3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）；表达式操作区建立表达式4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；指定频率指定相位指定关联区指定场计算器使用数据的出处。5基本面板StackOperations:ButtonformanipulatingstackDatastack:Containscurrentandsavedentriesinascrollingstacksimilartoahand-heldscientificcaculator.CalculatorFunctions:Orgnizedgroupingsofalltheavaliablecalculatorfunctionsinbuttonformat.Somebuttonscontainfurtheroptionsasdrop-downmenusStatusBar(notcurrentlyshown):基本面板StackOperations:Datastac6数据类型ThecalculatiorvcanmanipulatemanydifferenttypesofdataGeometricComplexVectorScalarDatatypesareindicatedinthecalculatorstackforeachentryMostcalculatoroperationsareonlyavailableontheappropriatedatatype(s)GeometricsurfacegeneratedalongEfieldiso-valuecontourVectordataoutputtoaplanegeometryScalarE-fielddatagraphedalongalinegeometry数据类型Thecalculatiorvcanmanip7数据显示EachstackentrywillbeprecededbyauniquecodedenotingitsdatatypeMathematical: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.数据显示Eachstackentrywillbep8堆栈面板的细节AsdataisenteredintothecalculatoritappearsattheTOPofthestack,pushingolderentriesDOWNUNDOattemptstotakebackthelastoperationbetweenstackenties.Itmaynotworkforalldatatypes(e.g.theresultofapuremathoperationcannotbereversed)CLEARdeletesALLentriesfromthestackuponconfirmationEXCHexchangesorswapsthetoptwostackentriesPUSHduplicatesthetopstackentryPOPdeletesthetopentryoffthestackRLDN“rolls”thestackdownward,movingthetopentrytothebottomRLUP“rolls”thestackupward,movingthebottomentrytothetop堆栈面板的细节Asdataisenteredinto9面板细节-工作键SCALAROUTPUTVECTORGENERALINPUT

Allcalculatoroperationsareorgnizedintocolumnsclassifyyingthembythetypeofoperationandthetypeofthedatauponwhichtheoperationcanbeperformed.面板细节-工作键SCALAROUTPUTVECTORGENE10场计算器用法UsejustlikeascientificcalculatorSimilartoHPscientificcalculators“FirstQuantity”,”SecondQuantity”Then“Operation”RememberstackfillsfromtheTopandpushesoldercontentsbelow.GeneraluseprogressesfromlefttorightInputquantityorquantitiesatleftPerformoperationsinmiddleOperatebetweenquantities;applyquantitiestogeometries,etc.Definedesiredoutputtypeatright.CalculatorUsageHINT:

AnyTimeyouusethefieldpost–processortoplotaquantity(PlotFields),youareactuallyperformingoperationsusingthecalculator!!Toseethestepsthatwentintothegeneratingtheplotyoujustcreated,openthecalculatorinterfaceandviewthestackcontents.Thiscanoftenhelpguideyouasyoutrytousethecalculatortocreatedyourowncustomoutputs.场计算器用法Usejustlikeascientif11改变数据类型Asdiscussedpreviously,Manyoperationsmustbeonthecorrectdatatype.Manyoperationsresultinadifferentdatatypethantheinputs.Ex1:TheDot

productoftwoVectorisaScalar.Ex2:ObtainingtheUnitVec

NormaltoaSurfGeneratesaVector.Somecalculatorbuttonsexistprimarilytoassistintypeconversion.Vec?ConvertsScltoVecdataScal?DoesthereverseCmplx

RealorCmplx

ImagtakesaSclcomponentfromaCScorCVc.Cmplx

CmplxRorCmplx

CmplxItakeaVecorSclcomponentandmakeittherealorimaginarypartofacomplexvalueCVcorCSc,respectively.Alwaysthinkofwhattypeofdatayouareworkingwithandwhetherornotitiscompatiblewithyourdesiredoperation.Forexample,nottheINTEGRALsignisintheScalarcolumn,implyingthattointegratecomplexnumbersyouwillhavetointegratetherealandimaginarycomponentsseparately,performinganintegrationbyparts.改变数据类型Asdiscussedpreviously,12输入量类型TheavailablefieldinputsareE:ThecomplexvectorEfielddataeverywhereinthemodeledgeometry;H:ThecomplexvectorHfielddataeverywhereinthemodeledgeometry;Poynting:Thetime-averagePoyntingvectorcomputedfromaboveas(E×H*):Jvol:Currentdensityinavolume,computedas(σ+jωε”)Ewhichcontainbothconductionanddisplacementcurrent;Jsurf:Netsurfacecurrentcomputedasn×(H|toptetrahedra-H|bottomtetrahedra):Unlikeotherquantities,Jsurfcanonlybeoutputonanobjectsurfacegeometry.EandHarePeakPhasorrepresentationofthesteadystatefields.ThereforethecurrentrepresentationJderivedfromn×HorσEarealsopeakphasorquantities.ThePoyntingVectorinputisatime-averagedquantity.输入量类型Theavailablefieldinput13场计算器输出DifferentdataoutputcanbegenerateddependingonselectedOutputcolumnbuttonandstackcontent(s):Valueisusedtotakethe“value”ofafieldstackentryonaspecificgeometry;Evalturnstackplaceholdertextintofinalnumericalanswer;WriteandExportoutputsstackdatatooutputfileformatsforuseoutsidethecalculatororcurrentproject.场计算器输出Differentdataoutputca14场计算器应用实例（1）InteractionImpedance:CalculatingPointCutPlaneβZ=2π/λgλg=vp/f场计算器应用实例（1）InteractionImpedan

色散特性模拟HFSS三维仿真软件能提供周期边界条件仿真无限长慢波系统的色散特性。使用周期边界条件仿真时只需要建一个螺旋周期的模型，并指定一个慢波周期的相移

，利用HFSS的本征模求解器计算出最低模的谐振频率

，通过下面的公式就可求出相速

。其中，是空间基波的相位传播常数，是螺旋线的螺