On the use of MOS varactors in RF VCOs

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Abstract

This paper presents two 1.8 GHz CMOS voltage-controlled oscillators (VCOs), tuned by an inversion-mode MOS varactor and an accumulation-mode MOS varactor, respectively. Both VCOs show a lower power consumption and a lower phase noise than a reference VCO tuned by a more commonly used diode varactor. The best overall performance is displayed by the accumulation-mode MOS varactor VCO. The VCOs were implemented in a standard 0.6 um CMOS process

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  • Electrical Engineering, Electronic Engineering, Information Engineering
Original languageEnglish
Pages (from-to)905-910
JournalIEEE Journal of Solid-State Circuits
Volume35
Issue number6
Publication statusPublished - 2000
Publication categoryResearch
Peer-reviewedYes