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A 33% tuning range voltage‐controlled oscillator robust to environmental variation
Author(s) -
Jang ShengLyang,
Chen YuSheng,
Liu ChengChen,
Juang MiinHorng
Publication year - 2011
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.25775
Subject(s) - voltage controlled oscillator , phase noise , dbc , electrical engineering , process corners , nmos logic , voltage , materials science , figure of merit , cmos , microwave , optoelectronics , engineering , physics , electronic engineering , transistor , telecommunications
A low‐voltage differential voltage‐controlled oscillator (VCO) is designed and implemented in a 90‐nm CMOS 1P9M process.The designed circuit topology is an nMOS‐core cross‐coupled LC‐tank VCO robust to process, voltage and temperature variation. At the supply voltage of 0.4 V, the output phase noise of the VCO is −108.78 dBc/Hz at 1‐MHz offset frequency from the carrier frequency of 10.13 GHz, and the figure of merit is −187.68 dBc/Hz. The power consumption is 1.32 mW. Tuning range is about 3.62 GHz, from 9.15 to 12.77 GHz, while the control voltage was tuned from 0 to 1.0 V. © 2011 Wiley Periodicals, Inc. Microwave Opt Technol Lett 53:517–519, 2011; View this article online at wileyonlinelibrary.com. DOI 10.1002/mop.25775