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多層各向異性等離子體球電磁散射的解析解

耿友林,  吳信寶,  官伯然

耿友林, 吳信寶, 官伯然. 多層各向異性等離子體球電磁散射的解析解[J]. 電子與信息學報, 2005, 27(6): 987-990.
引用本文: 耿友林, 吳信寶, 官伯然. 多層各向異性等離子體球電磁散射的解析解[J]. 電子與信息學報, 2005, 27(6): 987-990.
Geng You-lin, Wu Xin-bao, Guan Bo-ran. The Analytical Solution of Electromagnetic Scattering by Multilayered Plasma Anisotrojpic Spheres[J]. Journal of Electronics & Information Technology, 2005, 27(6): 987-990.
Citation: Geng You-lin, Wu Xin-bao, Guan Bo-ran. The Analytical Solution of Electromagnetic Scattering by Multilayered Plasma Anisotrojpic Spheres[J]. Journal of Electronics & Information Technology, 2005, 27(6): 987-990.

多層各向異性等離子體球電磁散射的解析解

The Analytical Solution of Electromagnetic Scattering by Multilayered Plasma Anisotrojpic Spheres

  • 摘要: 給出s層各向異性等離子體球電磁場球矢量波函數(shù)解析表達式,應用電磁場在(s-1)層球殼邊界上切向電磁場連續(xù)以及輻射條件,導出了平面波入射情況下,s層等離子體球電磁場的展開系數(shù)。將數(shù)值計算結果分別與矩量法-共扼梯度-傅里葉變換(MOM-CG-FFT)計算結果和均勻等離子體球的結果進行了比較,符合得較好。該文研究結果預期可應用于新型天線的研制和衛(wèi)星通信等領域。
    Abstract: The analytical solution of spherical vector wave functions of electromagnetic fields in s-concentric homogeneous plasma anisotropic spheres is expanded in this paper. Applying the continuous boundary conditions of electromagnetic fields in (s-1) plasma anisotropic spherical shells surfaces, the unknown expansion coefficients in homogeneous s-concentric spheres and the scattering field in free space by a plane wave are derived. The numerical results are consistent by the presented method and Method of Moments (MOM) speeded up with the Conjugate-Gradient Fast-Fourier-Transform (CG-FFT) approach. A three-layer concentric plasma anisotropic spheres (the three permittivity tensors are similar) is calculated also, which conforms with the published results of the homogeneous plasma sphere. The findings presented in this paper may be applied in manufacture of new antenna, satellite communication, and other related areas.
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  • Swarner W G, Peters Jr, L. Radar cross sections of dielectric or plasma coated conducting spheres and circular cylinders. IEEE Trans. on Antennas and Propagation, 1963, AP-11(5): 558 - 569.[2]Chen H C, Cheng D K. Scattering of electromagnetic waves by an anisotropic plasma-coated conducting cylinder, IEEE Trans. on Antennas and Propagation, 1964, AP-12(3): 348 - 353.[3]Yeh K C, Liu C H. Theory of Ionosphere Waves. Now York:Academic Press, 1972, 3.1 - 4.19.[4]劉少斌,莫錦軍,袁乃昌.電磁波在不均勻磁化等離子體中的吸收,電子學報,2003,41(3):372-375.[5]Graglia R D, Uslenghi P L E. Electromagnetic scattering from anisotropic maeterials Part Ⅰ: General theory. IEEE Trans. on Antennas Propagation, 1984, AP-32(8): 867 - 869.[6]Beker B, Umashankar K R. Analysis of electromagnetic scattering by arbitrarily shaped two-dimensional anisotropic objects: combined field surface integral equation formulation[J].Electromagnetics.1989, 9(2):215-[7]Taflove A. Review of the formulation and applications of the finite-difference-time-domain method for numerical modeling of electromagnetic wave interactions with arbitrary structures[J].Wave Motion.1988, 10(6):547-[8]Wu X B, Yasumoto K. Three-dimensional scattering by an infinite homogeneous anisotropic cylinder: An analytical solution[J].J. of Appl. Phy.1997, 82(1):1996-[9]Graglia R D, Uslenghi P L E, Zich R S. Moment method with is oparametric elements for three-dimensional anisotropic scatters[J].Proc. IEEE.1989, 77(5):750-[10]朱秀芹,耿友林,吳信寶.三維各向異性介質(zhì)目標電磁散射的MOM-CG-FFT方法.電波科學學報,2002,17(3):209-215.[11]Beker B. Analysis of electromagnetic scattering by arbitrarily shaped anisotropic objects using combined field surface integral equation formulation, [Ph.D. Dissertation], University of IIinois at Chicago, May, 1988.[12]Geng Y L, Wu X B, Li L W. Analysis of electromagnetic scattering by a plasma anisotropic sphere[J].Radio Science.2003,38(6):1104-[13]Ren W. Contributions to the electromagnetic wave theory of bounded homogeneous anisotropic media[J].Phys. Rev. E.1993,47(1):664-[14]Papadakis S N, Uzunoglu N K, Capsalis C N. Scattering of a plane wave by a general anisotropic dielectric ellipsoid[J].J. Opt.Soc. Am. A.1990, 7(6):991-
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出版歷程
  • 收稿日期:  2003-12-29
  • 修回日期:  2004-06-14
  • 刊出日期:  2005-06-19

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