二維多體散射系統(tǒng)分析
NUMERICAL ANALYSIS OF TWO-DIMENSIONAL MULTI-OBJECT SCATTERING SYSTEMS WITH ARBITRARY STRUCTURE
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摘要: 本文提出一種多體散射系統(tǒng)的普遍化的分析方法,原則上能處理任意形式的多體散射系統(tǒng)。利用系統(tǒng)散射方程把多體問(wèn)題歸結(jié)為一組單體問(wèn)題,然后用有限元法對(duì)各個(gè)單體問(wèn)題逐個(gè)進(jìn)行分析。本文著重討論二維多體系統(tǒng),并給出由介質(zhì)涂敷導(dǎo)體往構(gòu)成的三體散射系統(tǒng)的計(jì)算實(shí)例。
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關(guān)鍵詞:
- 電磁散射; 多體散射系統(tǒng); 有限元法
Abstract: A general analysis approach to multi-object scattering systems of arbitrarystructure is presented. Through the system scattering equation (SSE), the multi-object problems are first transformed into a series of single-object problems. Then we solve the single-object problems, one-object by one-object, TO yield the unknown coefficients of SSE and finally obtain the complete solution of original multi-object problems. As to the solutions of single-object problems, we use the finite element method for complex scatterers, or simply the moment method for conducting scatterers. We will confine ourself in two-dimensional cases, and show some calculation examples of 3-object conducting cylinder scatterers coated with dieletric material for demonstration. -
Desen Fan (樊德森),IEE Proc-H, 133 (1986) 4, 322-324.[2]M. G. Andreson, IEEE Trans, on AP, AP-12(1964) 12, 746-754.[3]K. K. Mei, IEEE Trans. on AP, AP-22(1974)11. 760-766.[4]Desen Fan(樊德森),Scienzia Sintca B32(1989) 1, 106-116.[5]A.F. Peterson, S. P. Castillo, IEEE Trans. on AP, AP-37 (1989)5,601-607.[6]R. Mittra, O. Ramahi, A. Khebir, R. Gordon, A. Kouki, IEEE Trans. on MAG, MAG-25(1989) 4,3034-3039.[7]Desen Fan(樊德森),Two Dimensional Single-and Multi-Object Scattering Analysis by Global Numerical Boundary Condiiton Based on PDE Techniques, 1SRAMT'91, Reno, Nevada, USA, Aug. (1991). -
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