A 12-GHz fully integrated cascode CMOS LC VCO with Q-enhancement circuit

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A fully integrated complementary metal oxide semiconductor (CMOS) cascode LC voltage controlled oscillator (VCO) with Q-enhancement technique has been designed for high frequency and low phase noise. The symmetrical cascode architecture is implemented with negative conductance circuit for improving phase noise performance in 0.18 mu m CMOS technology. The measured phase noise is -110.8 dBc/Hz at the offset frequency of 1 MHz. The tuning range of 630 MHz is achieved with the control voltage from 0.6 to 1.4 V. The VCO draws 4.5 mA in a differential core circuit from 1.8 V supply.
Publisher
IEEE-Inst Electrical Electronics Engineers Inc
Issue Date
2008-02
Language
English
Article Type
Article
Keywords

DESIGN

Citation

IEEE MICROWAVE AND WIRELESS COMPONENTS LETTERS, v.18, no.2, pp.133 - 135

ISSN
1531-1309
DOI
10.1109/LMWC.2007.915136
URI
http://hdl.handle.net/10203/175080
Appears in Collection
EE-Journal Papers(저널논문)
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