| 电偶极子源在时域有限差分网格中设置的一种新方法 |
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| 引用本文： | 毕增军,孙驰,范丽思,刘尚合.电偶极子源在时域有限差分网格中设置的一种新方法[J].军械工程学院学报,2003,15(1):1-4. |
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| 作者姓名： | 毕增军 孙驰 范丽思 刘尚合 |
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| 作者单位： | 军械工程学院静电与电磁防护研究所，军械工程学院静电与电磁防护研究所，军械工程学院静电与电磁防护研究所，军械工程学院静电与电磁防护研究所 河北 石家庄 050003，河北 石家庄 050003，河北 石家庄 050003，河北 石家庄 050003 |
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| 基金项目： | 国家自然科学基金(50077024)，国家自然科学基金(50237040) |
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| 摘 要： | 提出了电偶极子源在时域有限差分(FDTD)网格中设置的一种新方法,它是以电偶极子源周围若干个FDTD网格组成的立方体来对其进行替代,并对立方体表面上的网格节点施加切向解析电场来模拟电偶极子源。文中把由此方法计算的电偶极子辐射场数值结果分别与电流密度添加形式的设置方法和解析法所得结果进行了对比,空间中各点的电磁场值都一致,验证了此设置方法的正确性。
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| 关 键 词： | 电偶极子 时域有限差分 辐射场 |
| 文章编号： | 1008-2956(2003)01-0001-04 |
| 修稿时间： | 2002年10月22 |
A New Setup Method of Electric Dipole Source in FDTD Grids |
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| BI Zeng - jun,SUN Chi,FAN Li - si,LIU Shang - he Electrostatic and Electromagnetic Protection Research Institute,Ordnance Engineering College,Shijiazhuang ,China.A New Setup Method of Electric Dipole Source in FDTD Grids[J].Journal of Ordnance Engineering College,2003,15(1):1-4. |
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| Authors: | BI Zeng - jun SUN Chi FAN Li - si LIU Shang - he Electrostatic and Electromagnetic Protection Research Institute Ordnance Engineering College Shijiazhuang China |
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| Institution: | BI Zeng - jun,SUN Chi,FAN Li - si,LIU Shang - he Electrostatic and Electromagnetic Protection Research Institute,Ordnance Engineering College,Shijiazhuang 050003,China) |
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| Abstract: | In this paper, a new setup method of electric dipole source in Finite - Difference Time - Domain ( FDTD) grids is presented, in which the electric dipole source is represented by a cube made up of several FDTD grids around and the electric dipole source is simulated by imposing the exact tangential electric fields on the gird nodes on the surface of the cube. Numerical radiation fields of electric dipole calculated by this method are compared with those calculated by adding current density method and analytical method. The results show a good agreement with each other and then the validity of this setup method is concluded. |
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| Keywords: | electric dipole FDTD radiation fields |
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