圆柱天线罩电磁散射的复射线分析
ANALYSIS OF ELECTROMAGNETIC SCATTERING FOR CYLINDRICAL RADOMES
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摘要: 利用复射线近轴近似法和集合射线法,可以十分简便地分析天线罩的电磁传输特性和散射特性。本文以二维圆柱形天线罩为例,分析了介质罩对罩内雷达天线性能的影响;计算了天线罩引起的传输系数和角跟踪性能的变化,以及天线罩的附加雷达散射截面;讨论了射线参量及天线、天线罩参量对分析计算精度的影响。数值结果表明,这种分析方法可以显著地简化天线罩优化设计,并可适用于其它多种型式的天线罩。
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关键词:
- 天线; 天线罩; 电磁散射; 复射线
Abstract: EM transmission and scattering characteristics of radome may Conveniently be analyzed by complex ray paraxial approximation and collective ray methods. 2-D cylindrical radomes are analyzed and calculated, including radome transmission coefficient, radar angular track property and radar cross-section of radomes, as well as the effect of ray parameters and antenna-radome parameters on computation accuracy. It is shown that this method can be used to simplify optimization designs for many kinds of radomes. -
阮颖铮,通信学报, 8(1987)4, 51-59.[2]阮颖铮,成都电讯工程学院学报,15(1986)3, 83-90.[3]阮颖铮,谢处方,电波科学学报,1(1986)2, 70-78.[4]林为干,阮颖铮,聂在平,电子学报,1987年增刊,468-469页.[5]X. J. Gao, L.B. Felsen, IEEE Trans. on AP, AP-33 (1985), 963-975.[6]Y. Z. Ruan, L.B.Felsen, J.Opt. Soc. Am. A, 3 (1986) 4, 566-579.[7]阮颖铮, L. B.费尔森,成都电讯工程学院学报,16(1987)4, 311-316.[8]P. D. Einziger, L. B. Felsen, IEEE Trans. on AP, AP-31 (1983), 870-884.[9]L. B. Felsen, N. Marcuvitz, Radiation and Scattering of Waves, Chap. 4, N. J. Prantice-Hall, 1973.[10]阮颖铮,成都电讯工祖学院学报,160987)1, 28-33.[11]阮颖铮,光学学报,8(1988)1, 83-88.[12]I.T. Lu, L. B. Felsen, Y. Z. Ruan, Geophys. J. R. Astr. Soc. 89(1987), 915-932.[13]阮颖铮,电子学报,17(1989)3,95-100. -
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