Title :
Accurate passivity enforcement algorithm for broadband S-parameter macromodels
Author :
Deschrijver, Dirk ; Dhaene, Tom
Author_Institution :
Dept. of Inf. Technol. (INTEC), Ghent Univ., Ghent, Belgium
Abstract :
This paper applies a reliable and efficient algorithm for passivity enforcement of multiport S-parameter macromodels. It minimizes the passivity violations in each iteration step, and converges to a uniformly passive macromodel. The method iteratively updates the residues of the macromodel by means of a simple least-squares fitting procedure. Numerical examples indicate that passive macromodels are obtained at a limited computational cost while preserving a good accuracy.
Keywords :
S-parameters; convergence of numerical methods; iterative methods; least squares approximations; microwave circuits; multiport networks; vectors; broadband multiport S-parameter macromodel; convergence; iterative method; least-square vector fitting procedure; numerical example; passive microwave system; passivity enforcement algorithm; Computational efficiency; Data mining; Eigenvalues and eigenfunctions; Frequency; Information technology; Iterative algorithms; Microwave devices; Packaging; Scattering parameters; Vectors;
Conference_Titel :
AFRICON, 2009. AFRICON '09.
Conference_Location :
Nairobi
Print_ISBN :
978-1-4244-3918-8
Electronic_ISBN :
978-1-4244-3919-5
DOI :
10.1109/AFRCON.2009.5308273
