微波谐振腔特性参数的计算和仿真

大连海事大学毕业论文二0一一年六月┊┊┊┊┊┊┊装┊┊┊┊┊┊┊订┊┊┊┊┊┊┊线┊┊┊┊┊┊┊微波谐振腔特性参数的计算和仿真专业班级：通信工程3班姓名：张振北指导教师：傅世强信息科学技术学院I摘要微波谐振腔其内部的电磁场分布在空间三个坐标方向上都将受到限制,均成驻波分布.微波谐振腔在微波电路中起着与低频LC振荡回路相同的作用,是一种具有储能和选频特性的谐振器件.这次主要研究矩形谐振腔和圆柱体谐振腔的特性参数的计算和仿真.计算时用VC++中的MFC编写一个小界面计算工具，当输入变量参数时，类似计算器形式直接输出计算结果，仿真所用软件为HFSS，对矩形谐振腔和圆柱谐振腔进行仿真，输入变量得出仿真结果并与上述结算结果进行比较。本文首先介绍了微波谐振腔的发展及前景和理论基础知识和MFC,Hfss等软件.然后分别进行了:1.对金属谐振腔中特性参数的特性及计算方式进行深入探讨，学习其基本特性与基本分析方法。2.矩形谐振腔和圆柱谐振腔特性参数的计算在小界面计算方式方式下表示，并举例输入变量得出计算结果。3.用Hfss微波技术仿真软件对矩形谐振腔和圆柱谐振腔仿真,与之前的结果进行比较。4.在小界面计算工具在输入不同尺寸，内部填充不同材料，以及用铜，铁，铝等材料作为谐振腔表面材料等多种情况下计算，得出不同结果，并用仿真软件对矩形及圆柱谐振腔仿真，两组数据比较并得出结果。本文主要研究金属谐振腔中矩形谐振腔及圆柱谐振腔特性参数的特性及计算方法，对其特性参数的特点，计算方式进行深入研究，然后运用编程软件对其编程，得到一个便捷的计算工具，并对矩形及圆柱谐振腔仿真，计算结果与仿真结果比较来判别计算工具的实用性与便捷性。关键词：金属谐振腔，特性参数，MFC，小界面，Hfss，仿真IIAbstractMicrowaveresonantcavityofinternalelectromagneticfielddistributioninspacethreecoordinatedirectionwillbelimited,allintostandingwavedistribution.MicrowaveresonatorinmicrowavecircuitsplaysandlowfrequencyoscillationloopofthesameroleLC,isonekindhastheenergystorageandchoosetheresonancefrequencycharacteristicsofthedevice.Themainresearchrectangularresonantcavityandcylinderofresonancecavitycharacteristicparametersofthecalculationandsimulationcalculationwithvc++.WhentheMFCwriteasmallinterfacecalculationtool,whentheinputvariableparameter,similarcalculatorformoutputcalculationresultdirectly,andthesimulationsoftwareforHFSS,usedforrectangularresonantcavityandcylindricalarectangularresonantcavitysimulation,theinputvariablesthatthesimulationresultsandtheresultswerecomparedwiththesettlement.ThispaperfirstintroducesthedevelopmentofmicrowaveresonatorandprospectsandtheoreticalknowledgeandMFC,Hfssandsoftware.Andthen,the:1.Tometalinaresonantcavitycharacteristicparametersofthecharacteristicsandcalculationwayfurtherdiscussesthebasiccharacteristicsandlearningbasicanalysismethod.2.Rectangularresonantcavityandcylindricalresonatorparameterscalculationinsmallinterfacecalculatedmethod,andanexampleissaidthatthecalculationresultsinputvariables.3.WithHfssmicrowavetechnologysimulationsoftwareoftherectangularresonantcavityandcylindricalresonantcavity,andtheresultsofthesimulationbeforethecomparison.4.Inasmallinterfacecomputingtoolsindifferentsize,internalfillinginput,anddifferentmaterialwithcopper,iron,aluminumandothermaterialsasaresonantcavitysurfacematerial,etccasescalculated,differentresults,andthesimulationsoftwareoftherectangularcylinderandresonantcavitysimulation,twosetsofdataandcomparedtoobtaintheresult.Thispapermakesastudyofthemetalinaresonantcavityrectangularresonantcavityandcylindricalresonatorcharacteristicparametersofthecharacteristicsandcalculationmethod,andthecharacteristicparametersofthemethodforcalculatingthecharacteristics,furtherresearchandstudy,andthenuseofitsprogrammingsoftwareprogramming,getaconvenientcalculationtool,andinrectangularcylinderandresonantcavitysimulation,theresultsandsimulationresultsisdiscriminationcomputingtoolsofpracticalityandconvenience.Keywords:metalresonator,characteristicparameters,MFC,smallinterface,Hfss,III目录第1章绪论...........................................................................................................................................11.1研究背景及概况...............................................................................................................................11.2谐振腔的发展和应用.......................................................................................................................21.3本文主要的工作...............................................................................................................................3第2章微波谐振腔的基本理论...........................................................................................................42.1引言..................................................................................................................................................42.2谐振频率f0的概念与计算方法....................................................................................................52.3品质因数Q的概念与计算方法...................................................................................................7第3章：金属波导型谐振腔...............................................................................................................103.1矩形谐振腔..................................................................................................................................103.1.1矩形谐振腔谐振频率f0的计算方法.......................................................................................133.1.2矩形谐振腔品质因数Q的计算方法......................................................................................133.2圆柱谐振腔.................................................................................................................................15第3章微波谐振腔特性参数的计算..................................................................................................184.1关于MFC....................................................................................................................................184.2运用MFC进行编写的具体步骤........................................