A frequency expansion technique based on iterative solver and lump matrices

IEEE 14th Topical Meeting on Electrical Performance of Electronic Packaging, 2005.（2005）

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摘要

With the finite element method, the electromagnetic equations, including frequency dependent material properties, can be written as a power series of frequency. This paper describes a frequency domain expansion method, which combines the preconditioned conjugate gradient method with the Lanczos algorithm. A lump matrix method is also used to accelerate the frequency expansion. A numerical example is included in the paper to illustrate the effectiveness of the proposed methods.

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关键词

maxwell equations,electromagnetic field theory,electromagnetic wave propagation,finite element analysis,iterative methods,lanczos algorithm,electromagnetic equations,finite element method,frequency dependent material properties,frequency domain expansion method,iterative solver,lump matrix method,preconditioned conjugate gradient method,material properties,power series,frequency domain

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