Parametric macromodeling based on amplitude and frequency scaled systems with guaranteed passivity
Article first published online: 25 JUL 2011
Copyright © 2011 John Wiley & Sons, Ltd.
International Journal of Numerical Modelling: Electronic Networks, Devices and Fields
Volume 25, Issue 2, pages 139–151, March/April 2012
How to Cite
Ferranti, F., Knockaert, L., Dhaene, T. and Antonini, G. (2012), Parametric macromodeling based on amplitude and frequency scaled systems with guaranteed passivity. Int. J. Numer. Model., 25: 139–151. doi: 10.1002/jnm.819
- Issue published online: 20 FEB 2012
- Article first published online: 25 JUL 2011
- Manuscript Accepted: 4 APR 2011
- Manuscript Received: 10 SEP 2010
- Research Foundation Flanders (FWO)
- parametric macromodeling;
- rational approximation;
We propose a novel parametric macromodeling method for systems described by scattering parameters, which depend on multiple design variables such as geometrical layout or substrate features. It is able to build accurate multivariate macromodels that are stable and passive over the entire design space. Poles and residues are parameterized indirectly. The proposed method is based on an efficient and reliable combination of rational identification, a procedure to find amplitude and frequency scaling system coefficients and positive interpolation schemes. Pertinent numerical examples validate the proposed parametric macromodeling technique. Copyright © 2011 John Wiley & Sons, Ltd.