期刊
IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS II-EXPRESS BRIEFS
卷 69, 期 2, 页码 439-443出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TCSII.2021.3089428
关键词
Transfer functions; Q-factor; Predistortion; Scattering; Resonators; Eigenvalues and eigenfunctions; Circuits and systems; Lossy network; predistortion; quality factor; passivity; microwave filters
This paper describes an analytical method to check whether a given 2-port matrix transfer function is passive, and proposes a technique to assess the maximum allowed predistortion.
Lossy transfer functions are appealing in the design of filters and electric networks, as they can be exactly implemented by physical passive components. However, lossy techniques relax most of the constraints governing the design and thus offer many degrees of freedom but with unclear effects on realizability. This work describes first an analytical method to check whether a given 2-port matrix transfer function is passive. Moreover, for comparison purposes, a technique to assess the maximum allowed predistortion is proposed, related to the highest required quality factor.
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