Science&TechnologyVision科技视界基于COMSOLMultiphysics矩形波导磁场分布研究闵力*熊瑞袁前宾小虎任智勇渊湖南理工学院掖物理与电子科学学院业袁湖南岳阳414000冤揖摘要铱本文介绍了一种基于COMSOLMultiphysics软件的工程电磁场仿真方法遥以矩形波导中电磁波传播为例袁理论推导出矩形波导内部磁场分布和及其传输参数袁并应用软件仿真了波导内部磁场分布情况遥二者结果符合预期袁并高度一致袁表明了COMSOLMultiphysics软件在电磁工程领域的可行性及合理性遥揖关键词铱电磁仿真曰矩形波导曰磁场分布曰COMSOLMultiphysics软件中图分类号院O441.4-4;G2文献标识码院ADOI院10.19694/j.cnki.issn2095-2457.2019.24.001文章编号院2095-2457渊2019冤24-0001-002SimulationofMagneticFieldDistributioninRectangularWaveguidesBaseonCOMSOLMultiphysicsSoftMINLi*XIONGRuiYUANQianBINGXiao-huRENZhi-yong(DepartmentofPhysicsandElectronics
,YueyangHunan414006,China)揖Abstract铱Asimulationmethodforengineeringelectromagneticfieldsisintroducedinthispaper.Takingthecaseoftheelectromagneticfieldsinarectangularwaveguide,deducedtheoreticallyandsimulateditsmagneticfielddistributionsandtransmissionparameterstheoretically.Theoreticalandsimulationresultsareasexpectedandhighlyconsistent,indicatedthatthefeasibilityandrationalityofthesimulationsforelectromagneticengineeringwithCOMSOLMultiphysicssoft.揖Keywords铱ElectromagneticSimulation;Rectangularwaveguide;Magneticfielddistribution;COMSOLMultiphysicssoft0前言[1-2]遥COMSOLMultiphysics袁袁[3-4]遥袁袁COMSOLMultiphysics袁院尧遥y遥袁xb袁袁za袁袁袁棕袁1矩形波导中TE模式磁场分布理论推导遥E(x,y,z)=E(x,y)e-酌z渊1冤-酌zH(x,y,z)=H(x,y)e渊2冤袁酌遥渊TE冤Ez=0尧遥荦2Hz+k2Hz=0渊3冤扇设鄣H鄣Hz设z设|x=0=0袁|=0设鄣xx=a设鄣x缮渊4冤设设鄣H鄣Hzz设|y=0=0袁|=0设设鄣yy=b墒鄣yTE袁x袁m仔m仔xn仔y-酌zHx(x,y,z)=酌2Hmsincose渊5冤aabkckc=袁m袁n=0袁1袁2袁噎噎曰Hm尧[5]遥蓸蔀蓸蔀蓸蔀曰图1矩形波导姨蓸m仔a蔀蓸2n仔+b蔀2渊6冤*通迅作者院闵力渊1984要冤袁男袁博士袁讲师袁湖北广水人袁主要从事新型光学材料研究遥淫基金项目院湖南省自然科学基金渊批准号院2017JJ3098冤曰国家自然科学基金渊批准号院61805078冤遥Science&TechnologyVision科技视界1Science&TechnologyVision科技视界fc=2仔姨着0滋02kc渊7冤袁3遥酌=姨kc-棕着0滋0渊8冤袁着0滋0遥袁TEmn袁x遥2基于仿真矩形波导中TE模式磁场分布COMSOLMultiphysicsTE10遥袁袁野冶袁野冶尧野RF冶尧野袁渊emw冤冶袁野冶遥野冶袁野冶尧尧c=20cm袁a=4cmb=2cm曰野冶野冶野冶袁野冶1曰袁野袁冶袁袁袁尧尧野冶尧野渊TE冤冶尧野10冶野-pi/2冶遥袁曰袁遥袁野冶袁野冶野1院冶2GHz~6GHz曰野冶袁野冶遥TE10袁f=3GHzf=5GHzHx袁2遥袁TE01fc10=3.7GHz曰袁f=3GHzfc10袁袁2渊b冤遥遥袁COMSOLTE01z袁3遥袁Hxz袁COMSOL袁图3磁场分量Hx沿z轴变化情况渊x=2cm袁y=1cm袁f=5GH袁TE01模式冤3结论袁袁COMSOL袁尧袁遥Multiphysics遥袁尧尧袁遥袁尧袁曰遥咱1暂.,2014,28(4):32-37.咱2暂,.,2016,19(2):25-27.咱3暂,,,etal.[J].咱4暂,.Comsol[J].咱5暂,.,2006.揖参考文献铱[J].[J].COMSOL4.2,2015,37(1):114-117.Multiphysics,2014(23):142-142.渊冤[D].:图2TE01模式下袁渊a冤f=3GHz渊b冤f=5GHz时磁场分量Hx在矩形波导xoz横截面上分布2科技视界Science&TechnologyVision
