Buscar

 Detalle_Publicacion

Pole-zero identification: unveiling the critical dynamics of microwave circuits beyond stability analysis

Abstract: The term <;italic>pole-zero identification<;/italic> refers to obtaining the poles and zeros of a linear (or linearized) system described by its frequency response. This is usually done using optimization techniques (such as least squares, maximum likelihood estimation, or vector fitting) that fit a given frequency response of the linear system to a transfer function defined as the ratio of two polynomials [1], [2]. This kind of linear system identification in the frequency domain has numerous applications in a wide variety of engineering fields, such as mechanical systems, power systems, and electromagnetic compatibility. In the microwave domain, rational approximation is increasingly used to obtain black-box models of complex passive structures for model order reduction and efficient transient simulation. An extensive bibliography on the matter can be found in [3]-[6]. In this article, we focus on a different application of pole-zero identification. We review the different ways in which pole-zero identification can be applied to nonlinear circuit design, for power-amplifier stability analysis, and more. We provide a comprehensive view of recent approaches through illustrative application examples. Other uses for rational-approximation techniques are beyond the scope of this article.

 Fuente: IEEE Microwave Magazine, 2019, 20(7), 36-54

Editorial: Institute of Electrical and Electronics Engineers Inc.

 Fecha de publicación: 01/07/2019

Nº de páginas: 30

Tipo de publicación: Artículo de Revista

 DOI: 10.1109/MMM.2019.2909516

ISSN: 1527-3342,1557-9581

Proyecto español: TEC2015-67217-R

Url de la publicación: https://doi.org/10.1109/MMM.2019.2909516

Autores/as

JUAN MARIA COLLANTES METOLA

MORI CARRASCAL, LIBE

AITZIBER ANAKABE ITURRIAGA

OTEGI URDANPILLETA, NEREA

LIZARRAGA MALLO, IBONE

AYLLON, NATANAEL

ARMENGAUD, VICENT

SOUBERCAZE-PUN, GEOFFROY