Title
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.
Year
DOI
Venue
2017
10.1016/j.automatica.2016.09.034
Automatica
Keywords
Field
DocType
System identification,Interpolation,Continuous time filters,Scattering parameters,System transfer functions
Microwave,Mathematical optimization,Control theory,Matrix (mathematics),Interpolation,Filter (signal processing),Rational planning model,Multiplexer,Scattering parameters,System identification,Mathematics
Journal
Volume
Issue
ISSN
76
1
0005-1098
Citations 
PageRank 
References 
0
0.34
3
Authors
4
Name
Order
Citations
PageRank
Sanda Lefteriu1161.96
Martine Olivi2147.92
Fabien Seyfert321.54
Matteo Oldoni400.34