A New Low-Power CMOS Quadrature VCO with Current Reused Structure

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Date
2011-04
ORCID
Advisor
Referee
Mark
Journal Title
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Volume Title
Publisher
Společnost pro radioelektronické inženýrství
Abstract
A new quadrature voltage controlled oscillator (QVCO) circuit topology is proposed for low-voltage and low-power applications. In the proposed circuit, two oscillators with current-reused structure are coupled to each other by two P&N-MOS pairs. In this way, low phase noise quadrature signals are generated with low-voltage and low-power. The simulation is made by Cadence in chartered 0.18 μm CMOS process. The simulation result shows that the QVCO phase noise is approximately - 117.1 dBc/Hz at 1MHz offset from 1.8 GHz operation frequency. The QVCO dissipates 1.92 mW with a 1.1 V supply voltage.
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Citation
Radioengineering. 2011, vol. 20, č. 1, s. 360-364. ISSN 1210-2512
http://www.radioeng.cz/fulltexts/2011/11_01_360_364.pdf
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Peer-reviewed
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Published version
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Language of document
en
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Defence
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Creative Commons Attribution 3.0 Unported License
http://creativecommons.org/licenses/by/3.0/
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