An Enhanced Reduced Basis Method for Wideband Finite Element Method Simulations

In this paper, we present a novel strategy for selecting expansion points in the reduced basis method. A single computation of the error estimator is used to select a few expansion points in the multi-parameter space simultaneously. The number of selected points is determined adaptively, based on th...

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Bibliographic Details
Published in:IEEE access Vol. 7; pp. 60877 - 60884
Main Authors: Szypulski, Damian, Fotyga, Grzegorz, Mrozowski, Michal
Format: Journal Article
Language:English
Published: Piscataway IEEE 2019
The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subjects:
a posteriori error estimator
Broadband
Cavity resonators
Computational modeling
Finite element analysis
Finite element method
Frequency estimation
Model accuracy
Model-order reduction
Read only memory
Reliability
Scattering parameters
ISSN:2169-3536, 2169-3536
Online Access:Get full text
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Summary:In this paper, we present a novel strategy for selecting expansion points in the reduced basis method. A single computation of the error estimator is used to select a few expansion points in the multi-parameter space simultaneously. The number of selected points is determined adaptively, based on the accuracy of the current reduced model. The reliability and efficiency of this proposed approach are illustrated by numerical tests considering real-life structures, including dielectric resonator filter, H-plane filter, and four-pole dielectric-loaded cavity filter.
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ISSN:2169-3536
2169-3536
DOI:10.1109/ACCESS.2019.2915557