NDLI: Gradient-based optimization using parametric sensitivity macromodels

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Gradient-based optimization using parametric sensitivity macromodels

Content Provider	Semantic Scholar
Author	Chemmangat, Krishnan Ferranti, Francesco Dhaene, Tom Knockaert, Luc
Copyright Year	2012
Abstract	A new method for gradient-based optimization of electromagnetic systems using parametric sensitivity macromodels is presented. Parametric macromodels accurately describe the parameterized frequency behavior of electromagnetic systems and their corresponding parameterized sensitivity responses with respect to design parameters, such as layout and substrate parameters. A set of frequency-dependent rational models is built at a set of design space points by using the vector fitting method and converted into a state-space form. Then, this set of state-space matrices is parameterized with a proper choice of interpolation schemes, such that parametric sensitivity macromodels can be computed. These parametric macromodels, along with the corresponding parametric sensitivity macromodels, can be used in a gradient-based design optimization process. The importance of parameterized sensitivity information for an efficient and accurate design optimization is shown in the two numerical microwave examples. Copyright © 2012 John Wiley & Sons, Ltd. (This work was supported by the Research Foundation Flanders (FWO).)
Starting Page	347
Ending Page	361
Page Count	15
File Format	PDF HTM / HTML
DOI	10.1002/jnm.839
Volume Number	25
Alternate Webpage(s)	http://users.ugent.be/~lknockae/pdf/kfkd_2012.pdf
Alternate Webpage(s)	https://biblio.ugent.be/publication/2984241/file/2984247.pdf
Language	English
Access Restriction	Open
Content Type	Text
Resource Type	Article

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