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Study of microwave element and accelerating structure using finite element method
Wang LF(王兰法); Zhang C(张闯); Wang, LF; Zhang, C
2001
发表期刊HIGH ENERGY PHYSICS AND NUCLEAR PHYSICS-CHINESE EDITION
卷号25期号:12页码:1219-1224
通讯作者Chinese Acad Sci, Inst High Energy Phys, Beijing 100039, Peoples R China
文章类型Article
摘要An analysis of the electromagnetic field in 2D uniform and axis-symmetric structures based on FEM (Finite Element Method) is presented in this paper. The equation of FEM is derived based on the Maxwell equations and variational theory. The resulting tridiagonal matrix in FEM equation is optimized to reduce band-width of the matrix and the calculation time. Subspace method is applied to solve the eigenvalue equation where the matrices are sparse and make the solver run faster. The number of eigenvalue and eigenvector can be selected by the user which makes the solver-more efficient. Irregular triangle element is used for meshing to describe the structure geometry with good approximation and improve the accuracy of the solution. Numerical results for rectangle waveguide, pill-box cavity and disc-loaded structure show that our Finite element method has high accuracy, good convergence and fast running speed. Comparing with SUPERFISH program, the FEM method is advantageous in both accuracy and speed. The accuracy of our FEM is almost the same as the variational method which is used as a basic method in many fields. All strategy used here can be applied to the 3-dimension structure and other eigenvalue problems.
关键词finite element method accelerating structure subspace method
学科领域Physics
研究领域[WOS]Physics ; Physics
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语种英语
研究领域[WOS]Physics ; Physics
WOS类目Physics, Nuclear ; Physics, Particles & Fields
WOS记录号WOS:000172849500014
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文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/239199
专题加速器中心
作者单位中国科学院高能物理研究所
推荐引用方式
GB/T 7714
Wang LF,Zhang C,Wang, LF,et al. Study of microwave element and accelerating structure using finite element method[J]. HIGH ENERGY PHYSICS AND NUCLEAR PHYSICS-CHINESE EDITION,2001,25(12):1219-1224.
APA 王兰法,张闯,Wang, LF,&Zhang, C.(2001).Study of microwave element and accelerating structure using finite element method.HIGH ENERGY PHYSICS AND NUCLEAR PHYSICS-CHINESE EDITION,25(12),1219-1224.
MLA 王兰法,et al."Study of microwave element and accelerating structure using finite element method".HIGH ENERGY PHYSICS AND NUCLEAR PHYSICS-CHINESE EDITION 25.12(2001):1219-1224.
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