| 时域有限差分法在有耗介质电磁能量吸收问题中的应用 |
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| 引用本文： | 王长清,陈金元.时域有限差分法在有耗介质电磁能量吸收问题中的应用[J].电子与信息学报,1991,13(3):308-312. |
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| 作者姓名： | 王长清 陈金元 |
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| 作者单位： | 北京大学 北京
(王长清)，中国科技大学 合肥(陈金元) |
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| 摘 要： | 本文论述了用时域有限差分法计算平面电磁波照射下有耗介质中电磁能量的吸收问题。讨论了影响计算精度的各种因素。计算了均匀和分层均匀球体中能量的吸收和分布,并把计算结果与精确的解析分析进行了比较。还讨论了理想导电面的模拟问题,并把结果与镜象理论进行了对比。所有的结果都说明,在一定条件下,时域有限差分法能给出满意的结果。
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| 关 键 词： | 有耗介质散射体 电磁能量吸收 时域有限差分法 |
| 收稿时间： | 1989-10-10 |
| 修稿时间： | 1990-4-29 |
USE OF THE FINITE-DIFFERENCE TIME-DOMAIN METHOD FOR CALCULATING EM ABSORPTION IN LOSSY DIELECTRIC SCATTERER |
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| Wang Changqing,Chen Jinyuan.USE OF THE FINITE-DIFFERENCE TIME-DOMAIN METHOD FOR CALCULATING EM ABSORPTION IN LOSSY DIELECTRIC SCATTERER[J].Journal of Electronics & Information Technology,1991,13(3):308-312. |
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| Authors: | Wang Changqing Chen Jinyuan |
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| Affiliation: | Beijing University Beijing;University of Science and Technology of China Hefei |
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| Abstract: | The problems for calculating EM energy absorption by lossy dielectric scatterer irradiated by plane wave are discussed. The factors effecting the accuracy of com-putation are discussed. The calculated resuhs of EM energy absorption and its distribution in homogeneous and layered homogeneous lossy dielectric spheres are presented, and the com-parison of these results with analytical soturion is given. The calculation is carried out for dielectric cylinder on conducting ground as well, and the result is compared with the image theory. All the computations show that the finite-difference time-domain method can give sa-tisfactory results. |
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| Keywords: | Lossy dielectric scatterer Electromagnetic absorption Finite-difference time-domain method |
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