System identification of microwave filters from multiplexers by rational interpolation

Abstract : Microwave multiplexers are multi-port structures composed of several two-port filters connected to a common junction. This paper addresses the de-embedding problem, in which the goal is to determine the filtering components given the measured scattering parameters of the overall multiplexer at several frequencies. Due to structural properties, the transmission zeros of the filters play a crucial role in this problem, and, consequently, in our approach. We propose a system identification algorithm for deriving a rational model of the filters' scattering matrix. The approach is based on rational interpolation with derivative constraints, with the interpolation conditions being located precisely at the filters' transmission zeros.
Type de document :
Article dans une revue
Automatica, Elsevier, 2016
Liste complète des métadonnées

Littérature citée [28 références]  Voir  Masquer  Télécharger
Contributeur : Martine Olivi <>
Soumis le : mardi 30 août 2016 - 16:25:15
Dernière modification le : jeudi 7 février 2019 - 16:02:58


Fichiers produits par l'(les) auteur(s)


  • HAL Id : hal-01357934, version 1



Sanda Lefteriu, Martine Olivi, Fabien Seyfert, Matteo Oldoni. System identification of microwave filters from multiplexers by rational interpolation. Automatica, Elsevier, 2016. 〈hal-01357934〉



Consultations de la notice


Téléchargements de fichiers