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Design of low‐power CMOS VCO based on current‐reused topology with center‐tapped inductor bias
Author(s) -
Hsu MengTing,
Chung ChengChuan,
Ou AnCheng
Publication year - 2014
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.28401
Subject(s) - voltage controlled oscillator , dbc , phase noise , inductor , cmos , electrical engineering , figure of merit , center frequency , voltage , microwave , offset (computer science) , dissipation , electronic engineering , materials science , engineering , optoelectronics , physics , computer science , telecommunications , band pass filter , thermodynamics , programming language
ABSTRACT This article presents a completely integrated 1.1 V 5.15 GHz CMOS voltage‐controlled oscillator (VCO) with self‐body‐biased technique to save the power consumption. MOS varactors are used to maintain a wide tuning range. The VCO was measured with a 1.1 V supply voltage and the tuning range of 16% from 5.15 to 6.05 GHz. The measurement of phase noise is −114.63 dBc/Hz at 1 MHz offset from the carrier frequency of 5.15 GHz. The VCO core power dissipation is 0.8 mW. The figure‐of‐merit is −189.8 dBc/Hz. The VCO circuit was implemented by TSMC 0.18 μm CMOS process. © 2014 Wiley Periodicals, Inc. Microwave Opt Technol Lett 56:1587–1590, 2014