fdtd法在单极天线特性分析中的应用.doc
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fdtd法在单极天线特性分析中的应用,fdtd法在单极天线特性分析中的应用页数 70 字数 20679摘要fdtd法已广泛的应用于对电磁场问题的数值分析，本文探讨用fdtd法来分析单极天线的特性。主要借鉴了已有的fdtd法在时谐电磁场近场区的场分析程序,得出了入射波为te,tm时该天线近场区e,h的幅值和相位图。用该结果可以进一步推得天线的远区辐射场及其性...
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FDTD法在单极天线特性分析中的应用
页数 70 字数 20679
摘要
FDTD法已广泛的应用于对电磁场问题的数值分析，本文探讨用FDTD法来分析单极天线的特性。主要借鉴了已有的FDTD法在时谐电磁场近场区的场分析程序,得出了入射波为TE,TM时该天线近场区E,H的幅值和相位图。用该结果可以进一步推得天线的远区辐射场及其性能指标。并讨论了该天线在无限大金属接地平面和有限尺寸金属接地平面时，对该天线辐射场的影响。得出了导体板尺寸的大小在一定程度上影响单及天线特性的结论。
关键词：
时域有限差分法,近场分布,单极天线
Abstract
In the numerical analysis of electromagnetic field,the FDTD method has been used widely.this paper will discuss the feature of monopole antenna with us in the FDTD method.First,with the parsing program for near field of electromagnetic field,we can get the amplitude and phase diagram of E,H variate in the antenna's near field area when the incident wave is TE or TM.Having the results,we could get the feature of antenna's far field and it's plant.Then,we will talk about the influence to the aerial's radial field,when there is the infinite or finite plane with metal grounding.In the end,we get a conclusion that the feature of monopole antenna is affected by the size of conductor board to certain extent.Keyword:finite difference time domain,distribution in near field,monopole antenna.
Keywords: Finite Difference Time Domain，Distribution in near field，Monopole Antenna
参考文献：
1．周朝栋 王元坤.天线与电波 西安电子科技大学出版社,1999
2．杨显清 赵家升.电磁场与电磁波 国防工业出版社,2003
3．马西奎.电磁场理论及应用 ,西安交大出版社1999
4．倪光正 钱秀英.电磁场的计算机辅助设计, 西安交大出版社1985
5．倪光正 杨仕友.工程电磁场数值计算，机械工业出版社2004
页数 70 字数 20679
摘要
FDTD法已广泛的应用于对电磁场问题的数值分析，本文探讨用FDTD法来分析单极天线的特性。主要借鉴了已有的FDTD法在时谐电磁场近场区的场分析程序,得出了入射波为TE,TM时该天线近场区E,H的幅值和相位图。用该结果可以进一步推得天线的远区辐射场及其性能指标。并讨论了该天线在无限大金属接地平面和有限尺寸金属接地平面时，对该天线辐射场的影响。得出了导体板尺寸的大小在一定程度上影响单及天线特性的结论。
关键词：
时域有限差分法,近场分布,单极天线
Abstract
In the numerical analysis of electromagnetic field,the FDTD method has been used widely.this paper will discuss the feature of monopole antenna with us in the FDTD method.First,with the parsing program for near field of electromagnetic field,we can get the amplitude and phase diagram of E,H variate in the antenna's near field area when the incident wave is TE or TM.Having the results,we could get the feature of antenna's far field and it's plant.Then,we will talk about the influence to the aerial's radial field,when there is the infinite or finite plane with metal grounding.In the end,we get a conclusion that the feature of monopole antenna is affected by the size of conductor board to certain extent.Keyword:finite difference time domain,distribution in near field,monopole antenna.
Keywords: Finite Difference Time Domain，Distribution in near field，Monopole Antenna
参考文献：
1．周朝栋 王元坤.天线与电波 西安电子科技大学出版社,1999
2．杨显清 赵家升.电磁场与电磁波 国防工业出版社,2003
3．马西奎.电磁场理论及应用 ,西安交大出版社1999
4．倪光正 钱秀英.电磁场的计算机辅助设计, 西安交大出版社1985
5．倪光正 杨仕友.工程电磁场数值计算，机械工业出版社2004
