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An extremely miniaturized 15‐GHz CMOS distributed voltage‐controlled oscillator
Author(s) -
Chirala Mohan K.,
Nguyen Cam
Publication year - 2009
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.24504
Subject(s) - voltage controlled oscillator , phase noise , dbc , electrical engineering , cmos , microwave , amplifier , distributed amplifier , offset (computer science) , voltage , engineering , inductor , electronic oscillator , optoelectronics , electronic engineering , materials science , telecommunications , computer science , rf power amplifier , programming language
A distributed voltage‐controlled oscillator (DVCO) employing novel multilayered inductors is implemented in a standard 0.18‐μm CMOS process. The DVCO is at least 90% smaller than the earlier reported DVCOs and its core occupies a mere 348 μm × 195 μm or 0.06 mm 2 , making it the smallest distributed VCO reported in any monolithic technology to date. The VCO employs a four‐stage unstable distributed amplifier and generates a fundamental signal at 14.9 GHz with a phase noise of −100.2 dBc/Hz @ 1 MHz offset and a 12% tuning range. The circuit consumes 34 mW of DC power and provides −0.8 dBm of output power. © 2009 Wiley Periodicals, Inc. Microwave Opt Technol Lett 51: 1953–1955, 2009; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.24504