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On the design of multifunctional microwave (sub)systems for signal and noise performance
Author(s) -
Rizzoli Vittorio,
Costanzo Alessandra,
Mastri Franco
Publication year - 1995
Publication title -
microwave and optical technology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 76
eISSN - 1098-2760
pISSN - 0895-2477
DOI - 10.1002/mop.4650090116
Subject(s) - harmonic balance , nonlinear system , electronic engineering , noise (video) , interconnection , microwave , harmonic , computer science , systems design , control engineering , engineering , control theory (sociology) , telecommunications , systems engineering , acoustics , physics , control (management) , quantum mechanics , artificial intelligence , image (mathematics)
The conventional approach to microwave system design based on the separate optimization of individual nonlinear functional blocks may result in a strongly suboptimal electrical and noise performance of the assembled system. This is due to nonlinear interactions among the interconnected subsystems, which are unpredictable by conventional means. The state equations of the individual building blocks change after the connection, and this may strongly modify the system electrical and noise performance with respect to the predictions. In order to meet the design goals it may thus be necessary to carry out a simultaneous numerical optimization of the entire assembly for electrical and noise performance, which is currently made possible by state‐of‐the‐art harmonic‐balance‐based numerical techniques. The optimized system performance may exceed the predictions based on the interconnection of noninteracting individually optimized subsystems, thanks to a better exploitation of the available degrees of freedom. © 1995 John Wiley & Sons, Inc.