微波無源電路仿真技術課件

場計算器場計算器1場計算器基本界面AtoolforperformingmathematicaloperationsonALL

savedfielddatainthemodeledgeometryE,H,J,andPoyntingdataavailablePerformoperationsusingdrawinggeometryornewgeometrycreatedinPost3Performoperationsatsinglefrequency(interpolatingordiscretesweeps)orotherfrequencies(fastsweep)Generatenumerical,graphical,geometricalorexportabledataVBS-enabled場計算器基本界面Atoolforperforming2表達式操作區(qū)指定數(shù)據(jù)關聯(lián)場計算器操作區(qū)場計算器分區(qū)表達式操作區(qū)指定數(shù)據(jù)關聯(lián)場計算器操作區(qū)場計算器分區(qū)3表達式操作區(qū)建立表達式使用“Add”鍵，由場計算器堆棧導入表達式；使用“LoadFrom”鍵，由場計算器表達式文件（*.clc）導入表達式；輸出表達式使用“Copytostack”鍵，將已存在的表達式導出到場計算器堆棧；使用“Saveto”鍵，將已存在的表達式保存成場計算器表達式文件（*.clc）；表達式操作區(qū)建立表達式4指定關聯(lián)區(qū)指定場計算器使用數(shù)據(jù)的出處。指定求解設置指定場類型；指定頻率指定相位指定關聯(lián)區(qū)指定場計算器使用數(shù)據(jù)的出處。5基本面板StackOperations:ButtonformanipulatingstackDatastack:Containscurrentandsavedentriesinascrollingstacksimilartoahand-heldscientificcaculator.CalculatorFunctions:Orgnizedgroupingsofalltheavaliablecalculatorfunctionsinbuttonformat.Somebuttonscontainfurtheroptionsasdrop-downmenusStatusBar(notcurrentlyshown):基本面板StackOperations:Datastac6數(shù)據(jù)類型ThecalculatiorvcanmanipulatemanydifferenttypesofdataGeometricComplexVectorScalarDatatypesareindicatedinthecalculatorstackforeachentryMostcalculatoroperationsareonlyavailableontheappropriatedatatype(s)GeometricsurfacegeneratedalongEfieldiso-valuecontourVectordataoutputtoaplanegeometryScalarE-fielddatagraphedalongalinegeometry數(shù)據(jù)類型Thecalculatiorvcanmanip7數(shù)據(jù)顯示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.數(shù)據(jù)顯示Eachstackentrywillbep8堆棧面板的細節(jié)AsdataisenteredintothecalculatoritappearsattheTOPofthestack,pushingolderentriesDOWNUNDOattemptstotakebackthelastoperationbetweenstackenties.Itmaynotworkforalldatatypes(e.g.theresultofapuremathoperationcannotbereversed)CLEARdeletesALLentriesfromthestackuponconfirmationEXCHexchangesorswapsthetoptwostackentriesPUSHduplicatesthetopstackentryPOPdeletesthetopentryoffthestackRLDN“rolls”thestackdownward,movingthetopentrytothebottomRLUP“rolls”thestackupward,movingthebottomentrytothetop堆棧面板的細節(jié)Asdataisenteredinto9面板細節(jié)-工作鍵SCALAROUTPUTVECTORGENERALINPUT

Allcalculatoroperationsareorgnizedintocolumnsclassifyyingthembythetypeofoperationandthetypeofthedatauponwhichtheoperationcanbeperformed.面板細節(jié)-工作鍵SCALAROUTPUTVECTORGENE10場計算器用法UsejustlikeascientificcalculatorSimilartoHPscientificcalculators“FirstQuantity”,”SecondQuantity”Then“Operation”RememberstackfillsfromtheTopandpushesoldercontentsbelow.GeneraluseprogressesfromlefttorightInputquantityorquantitiesatleftPerformoperationsinmiddleOperatebetweenquantities;applyquantitiestogeometries,etc.Definedesiredoutputtypeatright.CalculatorUsageHINT:

AnyTimeyouusethefieldpost–processortoplotaquantity(PlotFields),youareactuallyperformingoperationsusingthecalculator!!Toseethestepsthatwentintothegeneratingtheplotyoujustcreated,openthecalculatorinterfaceandviewthestackcontents.Thiscanoftenhelpguideyouasyoutrytousethecalculatortocreatedyourowncustomoutputs.場計算器用法Usejustlikeascientif11改變數(shù)據(jù)類型Asdiscussedpreviously,Manyoperationsmustbeonthecorrectdatatype.Manyoperationsresultinadifferentdatatypethantheinputs.Ex1:TheDot

productoftwoVectorisaScalar.Ex2:ObtainingtheUnitVec

NormaltoaSurfGeneratesaVector.Somecalculatorbuttonsexistprimarilytoassistintypeconversion.Vec?ConvertsScltoVecdataScal?DoesthereverseCmplx

RealorCmplx

ImagtakesaSclcomponentfromaCScorCVc.Cmplx

CmplxRorCmplx

CmplxItakeaVecorSclcomponentandmakeittherealorimaginarypartofacomplexvalueCVcorCSc,respectively.Alwaysthinkofwhattypeofdatayouareworkingwithandwhetherornotitiscompatiblewithyourdesiredoperation.Forexample,nottheINTEGRALsignisintheScalarcolumn,implyingthattointegratecomplexnumbersyouwillhavetointegratetherealandimaginarycomponentsseparately,performinganintegrationbyparts.改變數(shù)據(jù)類型Asdiscussedpreviously,12輸入量類型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.輸入量類型Theavailablefieldinput13場計算器輸出DifferentdataoutputcanbegenerateddependingonselectedOutputcolumnbuttonandstackcontent(s):Valueisusedtotakethe“value”ofafieldstackentryonaspecificgeometry;Evalturnstackplaceholdertextintofinalnumericalanswer;WriteandExportoutputsstackdatatooutputfileformatsforuseoutsidethecalculatororcurrentproject.場計算器輸出Differentdataoutputca14場計算器應用實例（1）InteractionImpedance:CalculatingPointCutPlaneβZ=2π/λgλg=vp/f場計算器應用實例（1）InteractionImpedan

色散特性模擬HFSS三維仿真軟件能提供周期邊界條件仿真無限長慢波系統(tǒng)的色散特性。使用周期邊界條件仿真時只需要建一個螺旋周期的模型，并指定一個慢波周期的相移

，利用HFSS的本征模求解器計算出最低模的諧振頻率

，通過下面的公式就可求出相速

。其中，是空間基波的相位傳播常數(shù)，是螺旋線的螺