HFSS仿真角锥天线-共25页

例题：角锥喇叭建模尺寸6in5.16in0.315inAirboxHornAntennaThebaseoftheHorn一、创建工程第一步：打开HFSS并保存新工程打开HFSS软件后，自动创建一个新工程：Project1。由主菜单选File\Saveas，保存在指定的文件夹内，命名为horn。一、创建工程第二步：插入HFSS设计由主菜单选Project\InsertHFSSDesign，则一个新项目自动加入到工程树中，默认名HFSSModel1。同时，在工程树的右侧出现绘图窗口。在工程树中选择HFSSModel1，点右键，选择Rename项，将设计命名为HornModel。一、创建工程第三步：选择求解类型由主菜单选HFSS\SolutionType，在弹出对话窗选择DrivenModel项。一、创建工程第四步：设置单位：由主菜单选3DModeler\Units，在SetModelUnits对话框中选中in项。二、创建模型1.DrawingthebaseoftheHornClicktheBoxiconorgotoDrawBox.Enterthefollowingvalues-0.2,-0.45,and0forx,yandz,respectivelyand0.4,0.9,0.315fordx,dy,anddz,respectivelyThedrawingiswithrespecttotheorigin(0,0,0).Inotherwords,thebaseofthehornisdrawnwiththe(0,0)asitscenter.二、创建模型1.DrawingthebaseoftheHornTypeBaseinthenamefield.MaterialassignedisvacuumandchooseColorandTransparentatyourpreference.ClickOk.二、创建模型2.Drawingthebase2DRectangleTocreatethe“funnel”ortaperingofthehornantenna,drawandconnectTworectangles,andthenconnectthemtocreatethe3Dfunnel.Placethefirstrectangleontopofthe3Dantennabase.DrawRectangle.Nowmovethecursortoonecornerofthetopoftheantennabase,andclickonit,thenmovethecursortotheoppositecornerofthetopoftheantennabaseandclickagain.Therectanglewindowisopen.Typefunnel_base.Assignmaterialtobevacuum.ChooseColorandTransparencyofyourpreference.ClickOk.Notethatthedimensionsoftherectangleshouldmatchthoseofthetopoftheantennabase.二、创建模型3.DrawingtheHornApertureNext,drawthe2Drectanglethatrepresentsthetopofthefunnel,ortheapertureofthehorn.ClickRectangleiconorDrawRectangle.Typeinthefollowingvalues:0.972,1.325,5.475forx,yandz,respectively.Thentypethefollowingvalues:-1.944and-2.65fordxanddy,respectively.Typehorn_topinthenamefield.Assignmaterialtobevacuum.ChoosetheColorandTransparencyatyoupreference.ClickOk.二、创建模型4.Connecting2DObjectstoCreatetheFunnelNowyoucanconnectthe2Dobjectsthatmakeupthebaseandthetopofthefunneltocreatethe3D,funnel-shapedobject.Choosethehorn_topandfunnel_basefromtheModeltreebyholdingdowntheCtrlkey.Goto3DModelerSurfaceconnect.Nameitfunnel.Notethattheobjectthatiscreatedasaresultofconnectingorunitingotherobjectscannotbeedited.Whenconnecting2Dobjects,forexample,youcanedittheoriginal2Dobjects,butyoucannoteditdirectlythe3Dobjectthatistheresultofusingtheconnectcommand.二、创建模型5.UnitingthehornbasewiththeFunnelAlthoughitisnotstrictlynecessary,youwillunitethetwo3Dobjects-thehornbaseandthefunnel,tocreateone3Dhornantennastructure.Thismakestheproblemsimplerbykeepingthenumberofobjectstoaminimum.Choosebaseandfunnelfromthelistof3Dobjects.Then3DModelerBooleanUnite.ThenclinkOk.二、创建模型6.Drawingthe3DAirBoxAroundtheHornAntennaTosimulatethehornantenna,youneedtoencloseitinabounded“box”ofair.ClickBoxiconorDrawBox.Typeinthefollowingvalues:-1.5,-2,and0forx,y,andz,respectivelyand3,4,and6fordx,dy,anddz,respectively.TypeAirBoxinthenamefield,vacuumistheassignedmaterialandchooseColorandTransparencyatyourpreference.ClickOk.三、设置边界条件和激励源ChoosethesurfacesofthehornandassignPerfectE.Allfacesofthehornshouldbechosenexceptthetopandthebottom.ThenBoundariesrightclickAssignPerfectEandnameitPerfE_horn_sides.三、设置边界条件和激励源Assignradiationboundarytotheairbox.ChoosethefacesoftheairboxandBoundariesright-clickAssignRadiation.Nameitrad_air.三、设置边界条件和激励源AssignExcitationtothebottomfaceofthehorn.ExcitationsWavePort.NameitWavePort1.四、设置求解项并分析Right-clickAnalysis,thenAddSolutionSetup.Setthefollowingvalues:SolutionFrequencyis10GHz,Maximumnumberofpassesis20,andMaximumDeltaSperpassis0.02.Leaveeverythingelseasdefault.ClickOk.四、设置求解项并分析NowgotoAnalysisSetup1Addsweep.Setthevaluestothefollowing:SweepTypeisfast,FrequencySetuptypeisLinearcount,Startis8GHz,Stopis12GHzandCountis100.四、设置求解项并分析•Makesuretovalidatecheck.HFSSValidationCheck.•RunAnalysis.HFSSAnalyze.注意：此时会对边界和激励源的设置提出警告，忽略不计。五、察看结果图Right-ClickResultsCreateReport.AccepttheDefaultvaluesbyclickingOk.MakesurethefollowingvaluesaresetasinFigure6.AddTrace,thenclickDone.五、察看结果图CreatingaFarfieldPlotThefarfieldplotisa3-Dplotofthefar-fieldradiationpattern.Right-clickRadiation,thenchooseInsertFarFieldSetInfiniteSphere…五、察看结果图CreatingaFarfieldPlotThefarfieldplotisa3-Dplotofthefar-fieldradiationpattern.Right-clickResults,thenchooseCreatereport.SetReportTypetoFarFieldsandDisplaytypeto3DPolar.五、察看结果图CreatingaFarfieldPlotThefarfieldplotisa3-Dplotofthefar-fieldradiationpattern.WhenTracesWindowopen,leavethevaluesasset.MakesureitistheLastAdaptiveintheSolutionfieldandGeometryisInfiniteSphere1.UnderSweeptab,makesurePhiistheprimarysweepandThetaisthesecondarysweepandallvaluesarechecked.MakesurerEispickedunderCategory,rETotalunderquantityandnoneunderfunction.ClickAddTrace,thenDone.谢谢你的阅读知识就是财富丰富你的人生