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Low‐frequency noise conversion modeling in RF devices under forced nonlinear operation
Author(s) -
Conte Gabriele,
Bertazzi Francesco,
Guerrieri Simona Donati,
Bonani Fabrizio,
Ghione Giovanni
Publication year - 2006
Publication title -
international journal of rf and microwave computer‐aided engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.335
H-Index - 39
eISSN - 1099-047X
pISSN - 1096-4290
DOI - 10.1002/mmce.20126
Subject(s) - baseband , noise (video) , noise temperature , noise spectral density , physics , noise generator , noise figure , superposition principle , flicker noise , radio frequency , noise floor , signal (programming language) , acoustics , electronic engineering , phase noise , electrical engineering , noise measurement , optoelectronics , engineering , computer science , optics , noise reduction , amplifier , cmos , quantum mechanics , artificial intelligence , image (mathematics) , programming language
The article addresses the frequency conversion of low‐frequency noise deriving from trap‐assisted generation‐recombination (GR) noise in RF devices under forced, nonlinear operation through a physics‐based noise model. The superposition of the stationary (small‐signal) GR spectra originating from noninteracting trap levels with properly distributed energies is shown, in simple yet significant device case studies, to yield a 1/ f or 1/ f ‐like behaviour over a prescribed frequency range. The same trap distribution is also exploited for large‐signal, cyclostationary noise simulation in forced periodic conditions. In this case, low‐frequency 1/ f ‐like noise is shown to be upconverted from the baseband to all noise sidebands. Circuit‐level compact modeling strategies for noise‐frequency conversion based on the modulation of small‐signal low‐frequency noise are also investigated and compared to the fundamental approach. © 2005 Wiley Periodicals, Inc. Int J RF and Microwave CAE, 2006.