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Colpitts VCO with gate‐series high‐quality factor LC resonator
Author(s) -
Jang ShengLyang,
Chou LiTe,
Chang ChiaWei
Publication year - 2010
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.25466
Subject(s) - voltage controlled oscillator , phase noise , dbc , colpitts oscillator , electrical engineering , lc circuit , resonator , microwave , figure of merit , voltage , cmos , engineering , materials science , optoelectronics , electronic engineering , capacitor , telecommunications , vackář oscillator
A new differential voltage‐controlled oscillator (VCO) is designed and implemented in a 0.13‐μm CMOS 1P8M process. The designed circuit topology is an n ‐core LC‐tank VCO with an LC resonator. At the supply voltage of 1.1 V, the output phase noise of the VCO is −113.8 dBc/Hz at 1‐MHz offset frequency from the carrier frequency of 11.73 GHz and the figure of merit is −192.01 dBc/Hz. The core power consumption is 1.83 mW. Tuning range is 1.47 GHz from 10.66 to 12.13 GHz, while the control voltage was tuned from 0 to 1.2 V. © 2010 Wiley Periodicals, Inc. Microwave Opt Technol Lett 52:2170–2173, 2010; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.25466