| 无限长理想导体圆柱对电磁导弹的散射 |
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| 引用本文： | 文舸一,阮成礼,林为干.无限长理想导体圆柱对电磁导弹的散射[J].电子科技大学学报(社会科学版),1991(5). |
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| 作者姓名： | 文舸一 阮成礼 林为干 |
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| 作者单位： | 四川，四川，四川 成都 电子科技大学应用物理所，成都 电子科技大学应用物理所，成都 电子科技大学应用物理所 |
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| 摘 要： | 最近的研究表明,当一个能量按r~(-(?))衰减的电磁导弹投射到无限长平板后,其散射场能量仍按r~(-(?))衰减。电磁导弹在其它目标上的散射特性是一个尚待研究的课题。本文讨论能量按r~_(-(?))衰减的电磁导弹在理想金属圆柱上的散射特性。研究表明,电磁导弹散射场的能量衰减规律正比于r_(-(1+(?)))。这说明在入射场为电磁导弹的情形下,金属圆柱体的散射场能量衰减比平板要快,但仍比常规二维散射场的能量衰减规律r~(-2)要慢。
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| 关 键 词： | 电磁导弹 慢衰减 后向散射 散射场 无限长金属硼柱 |
BACKSCATTERING OF AN ELECTROMAGNETIC MISSILE BY A PERFECTLY CONDUCTING CIRCULAR CYLINDER |
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| Wen Geyi Ruan Chengli Lin Weigan.BACKSCATTERING OF AN ELECTROMAGNETIC MISSILE BY A PERFECTLY CONDUCTING CIRCULAR CYLINDER[J].Journal of University of Electronic Science and Technology of China(Social Sciences Edition),1991(5). |
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| Authors: | Wen Geyi Ruan Chengli Lin Weigan |
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| Abstract: | Recently the backscattering of an electromagnetic(EM) missile with an energy decreasing as r~(-8) by a perfectly conducting plate has been studied and the analysis shows that the energy baekscattered varies as r~(-8) with the same exponent as the incident EM missile. Scattering of an EM missile by other shapes is left as an open question. In this paper, the backseattering of an EM missile with energy decreasing as r~(-8) by a perfectly conducting circular cylinder is studied. The result from the research shows that the rate of the energy decay for the backscattered field far from the cylinder is proportional to r~(1+8), which is faster than r~(-8) (?)or plate scattering but still slower than the ordinary energy decay r~(-2) for a two-dimensional (?)ackscattered field. |
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| Keywords: | clcctromagnetic missile slowly dccaying backscattcring scattcred icld perfcctly conducting c ircularylinder of infinitc length |
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