| 双层介质覆盖导体球的电磁散射特性研究 |
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| 引用本文： | 张向阳,沈大才,皮德宝,邬惠欣. 双层介质覆盖导体球的电磁散射特性研究[J]. 系统工程与电子技术, 1990, 0(6) |
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| 作者姓名： | 张向阳 沈大才 皮德宝 邬惠欣 |
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| 作者单位： | 航空航天工业部二院二○七所(张向阳，沈大才，皮德宝)，航空航天工业部二院二○七所(邬惠欣) |
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| 摘 要： | 本文讨论了覆盖两层各向同性、均匀介质的导体球的电磁散射特性。除了给出严格的解析解,也给出了物理光学(PO)和几何光学(GO)近似解。最后以图示的形式给出了后向散射截面随导体球半径变化的情况以及双站散射截面随双站角变化的情形;涂层厚度对散射截面的影响;不同的介质参数对散射截面的影响;对双层介质覆盖的导体球,讨论了不同的涂敷方式对散射截面的影响。
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| 关 键 词： | 散射截面 电磁波散射 ~+介质覆盖球 |
SCATTERING FROM A CONDUCTING SPHERE COATED WITH TWO LAYERS OF DIELECTRICS |
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| Zhang Xiangyang,Shen Dachai,Pi Debao and Wu HuixinBeijing Institute of Environmental Features. SCATTERING FROM A CONDUCTING SPHERE COATED WITH TWO LAYERS OF DIELECTRICS[J]. System Engineering and Electronics, 1990, 0(6) |
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| Authors: | Zhang Xiangyang Shen Dachai Pi Debao Wu HuixinBeijing Institute of Environmental Features |
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| Abstract: | The theory of electromagnetic scattering from a perfectly conducting sphere coated with two layers of homogeneous isotropic absorbing materials is presented. In addition to the rigorous eigenfunction formulation of the electromagnetic field in different coating regions expressions for the far zone scattered electric field intensity and the corresponding components of bistatic echo area are also derived. Approximate solutions both in physical optics and geometrical optics are included. |
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| Keywords: | Radar cross section Electromagnetic scattering Dielectric coated sphere. |
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