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Low frequency noise optimization in Gilbert‐cell‐based mixers for direct conversion (zero‐IF) receivers
Author(s) -
Alvarado U.,
Berenguer R.,
Adín I.,
Meléndez J.,
Legarda J.,
Bistué G.
Publication year - 2008
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.23940
Subject(s) - flicker noise , noise (video) , electrical engineering , noise figure , electronic engineering , flicker , engineering , power consumption , noise reduction , noise temperature , microwave , frequency mixer , cmos , noise generator , power (physics) , phase noise , telecommunications , radio frequency , acoustics , physics , computer science , artificial intelligence , amplifier , quantum mechanics , image (mathematics)
This letter analyses the low frequency noise performance in Gilbert‐cell‐based zero‐IF mixers. Several issues for optimizing the flicker noise performance while keeping a good mixer performance in terms of gain, noise figure, and power consumption are introduced in a quantitative manner. A CMOS zero‐IF mixer has been fabricated and measured. A flicker noise reduction up to 10.4 dB is achieved at 10 kHz with a power consumption of only 5.4 mW. © 2008 Wiley Periodicals, Inc. Microwave Opt Technol Lett 50: 3128–3131, 2008; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.23940