Abstract
This paper addresses the problem of building a low complexity macromodel of an electromagnetic device based on measurements of its scattering parameters. For devices with a large number of ports, currently available techniques are very expensive. The approach we propose is based on a system-theoretic tool, the Loewner matrix pencil constructed in the context of tangential interpolation. Several implementations are possible. They are fast, accurate and robust; they construct models of low order and are especially designed for devices with a large number of terminals. Moreover, they allow to identify the underlying system, rather than merely fitting the measurements. We compare our algorithms to industry standard vector fitting method on two examples. This paper is a summary of [1].
Part of this work was in the framework of the project “MRTN-CT-2006-035559 A Computer Aided Engineering Approach to Smart Structures Design” while S. Lefteriu was with Fraunhofer ITWM, Kaiserslautern, Germany
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References
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Lefteriu, S., Antoulas, A.C. (2010). A New Adaptive Approach to Modeling Measured Multi-Port Scattering Parameters. In: Roos, J., Costa, L. (eds) Scientific Computing in Electrical Engineering SCEE 2008. Mathematics in Industry(), vol 14. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-12294-1_4
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DOI: https://doi.org/10.1007/978-3-642-12294-1_4
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