Modified perturbation theory for wideband finite-element model order reduction in eigen-problems
Journal
2004 IEEE MITT-S International Microwave Symposium Digest
Pages
1419-1422
Date Issued
2004
Author(s)
Lee, Shih Hao
Abstract
Modified perturbation theory based on high order Taylor series expansion and congruence transformation is applied to the finite-element model order reduction to accelerate the analysis of waveguide eigen-mode problems. The limit of Taylor series by poles is overcome and the bandwidth of a single-point reduced-order model is greatly improved. Without transforming a Taylor series to a Pade rational function, as in an AWE process, this method is more stable and has a wider bandwidth.
Type
conference paper
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