A low-phase-noise and low-power CMOS colpitts VCO using Gm boosting and capacitance switching techniques

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dc.contributor.authorPakasiri, Chatrpol
dc.contributor.authorYou, Jia Hao
dc.contributor.authorWang, Sen
dc.date.accessioned2026-08-06T10:31:43Z
dc.date.available2026-08-06T10:31:43Z
dc.date.issued2021-01-01
dc.description.abstractThis letter presents a low-power and low-phase-noise 5-GHz VCO fabricated in a standard CMOS 0.18-μm process. The low power dissipation was achieved by using the PMOS cross-coupled pair and G<inf>m</inf>-boosting topology, and the low phase noise was obtained by adding two pairs of switched capacitor array. The VCO consumed a dc power of 2.92 mW with the supply voltage of 1 V. The measured phase noises were − 104.6 dBc/Hz and − 117.4 dBc/Hz at 1 MHz offset frequency with switched off and on capacitances, respectively, which demonstrated 12.8-dB improvement.
dc.identifier.citationMicrowave and Optical Technology Letters, 63(1), 46-50, 2021
dc.identifier.doi10.1002/mop.32550
dc.identifier.issn08952477
dc.identifier.other2-s2.0-85088784576
dc.identifier.urihttps://dspace.kmitl.ac.th/handle/123456789/11802
dc.sourceMicrowave and Optical Technology Letters
dc.subjectCMOS
dc.subjectGm-boosting topology
dc.subjectlow-phase-noise
dc.subjectlow-power
dc.subjectswitched capacitor array
dc.subjectvoltage-controlled oscillator (VCO)
dc.titleA low-phase-noise and low-power CMOS colpitts VCO using Gm boosting and capacitance switching techniques
dc.typeArticle

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