| 快速分析理想导体电磁散射及辐射的新近似模型 |
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| 引用本文： | 陆卫兵,钱治国,郝张成.快速分析理想导体电磁散射及辐射的新近似模型[J].电子学报,2004,32(10):1757-1760. |
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| 作者姓名： | 陆卫兵 钱治国 郝张成 |
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| 作者单位： | 东南大学计算电磁学研究中心及国家毫米波重点实验室,江苏南京 210096 |
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| 基金项目： | 国家自然科学基金，国家高技术研究发展计划(863计划)，海外青年学者合作研究基金 |
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| 摘 要： | 本文提出一种快速分析理想导体电磁散射及辐射问题的新近似模型.应用这种方法,一个理想导体通常被分成两个区域,在靠近源或者入射波照射区域,利用矩量法求解,而另一个区域的电流则通过近似方法获得.与现有的混合方法相比,新模型给出了更好的结果和物理解释.无论是二维还是三维情况,数值模拟结果都验证了该方法的准确性.
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| 关 键 词： | 矩量法 新的近似模型 散射和辐射 混合方法 改进的PO-MOM |
| 文章编号： | 0372-2112(2004)10-1757-04 |
| 收稿时间： | 2003-06-12 |
A New Approximate Model for Efficient Implementation of EM Scattering and Radiation by PEC Objects |
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| LU Wei-bing,QIAN Zhi-guo,HAO Zhang-cheng.A New Approximate Model for Efficient Implementation of EM Scattering and Radiation by PEC Objects[J].Acta Electronica Sinica,2004,32(10):1757-1760. |
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| Authors: | LU Wei-bing QIAN Zhi-guo HAO Zhang-cheng |
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| Affiliation: | Center for Computational Electromagnetics and State Key Lab.of Milimeter Waves,Southeast University,Nanjing 210096,China |
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| Abstract: | A new approximate model is proposed for the efficient implementation of the electromagnetic scattering and radiation by perfectly electrical conducting (PEC) objects using the method of moments (MOM).In the new model,the PEC object under consideration is divided by two parts,where MOM is performed only on the first part after making a closed-form approximation for the electric current on the second part.Compared with the published hybrid methods,the new model gives better physical explanations.The new model is valid for both two-dimensional and three-dimensional cases.Numerical examples are given for validation of the model. |
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| Keywords: | method of moments new approximate model scattering and radiation hybrid methods improved PO-MOM |
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