| 时域有限面积法解手征介质涂层导体柱的电磁散射 |
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| 引用本文： | 方剑,任朗. 时域有限面积法解手征介质涂层导体柱的电磁散射[J]. 电子学报, 2001, 29(3): 368-372 |
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| 作者姓名： | 方剑 任朗 |
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| 作者单位： | 1. 中国西南电子设备研究所,成都 610036;2. 西南交通大学电磁场与微波技术研究所,成都 610031 |
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| 基金项目： | 国家自然科学基金!(No .69571 0 2 6) |
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| 摘 要： | 本文将时域有限面积法推广应用于研究任意截面复合手征介质涂层导体柱的电磁散射问题,建立了数值求解复合手征介质问题的时域基本方程.本文使用正交贴体计算网格,并选用适合正交曲线坐标系的二阶精度吸收边界条件,提高了计算精度.对典型的复合手征介质涂层导体柱的RCS计算表明,数值计算结果与级数解相吻合.
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| 关 键 词： | 时域有限面积法 复合手征介质 任意截面 贴体正交网格 吸收边界条件 |
| 文章编号： | 0372-2112 (2001) 03-0368-05 |
| 收稿时间： | 1999-12-06 |
Time-Domain Finite-Surface Method for Solving Scattering Problems of Arbitrary Cross Section PEC Cylinders Coated with Chiral Medium |
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| FANG Jian,REN Lang. Time-Domain Finite-Surface Method for Solving Scattering Problems of Arbitrary Cross Section PEC Cylinders Coated with Chiral Medium[J]. Acta Electronica Sinica, 2001, 29(3): 368-372 |
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| Authors: | FANG Jian REN Lang |
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| Affiliation: | 1. Southwest China Research Institute of Electronic Equipment,Chengdu 610036,China;2. Southwest Jiaotong University,Chengdu 610031,China |
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| Abstract: | A Time Domain Finite Surface Method is generalized to scattering problems of arbitrary cross section perfectly electrically conducting (PEC) cylinder coated with composite chiral medium.Time domain basic equations are built for solving electromagnetic problem in composite chiral medium.The body fitted orthogonal grids and the second order absorbing boundary conditions,which are suitable for orthogonal coordinates,are utilized. More accurate results are found.Numerical Results have been obtained for RCS problems of typical PEC cylinders coated with achiral and composite chiral medium.Comparisons with exact series solution show generally good agreement. |
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| Keywords: | time domain finite surface method composite chiral medium arbitrary cross section body fitted orthogonal grid absorbing boundary condition |
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