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1、AfilteringtechniquetolowerLCoscillatorphasenoiseHegazi,Emad;Sjöland,Henrik;Abidi,AsadPublishedin:IEEEJournalofSolid-StateCircuitsDOI:10.1109/4.972142Published:2001-01-01LinktopublicationCitationforpublishedversion(APA):Hegazi,E.,Sjöland,H.,&Abidi,A.(2001).Afilteringtechni
2、quetolowerLCoscillatorphasenoise.IEEEJournalofSolid-StateCircuits,36(12),1921-1930.DOI:10.1109/4.972142GeneralrightsCopyrightandmoralrightsforthepublicationsmadeaccessibleinthepublicportalareretainedbytheauthorsand/orothercopyrightownersanditisaconditionofaccessingpublica
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5、claim.Downloaddate:13.Aug.2018IEEEJOURNALOFSOLID-STATECIRCUITS,VOL.36,NO.12,DECEMBER20011921AFilteringTechniquetoLowerLCOscillatorPhaseNoiseEmadHegazi,StudentMember,IEEE,HenrikSjöland,Member,IEEE,andAsadA.Abidi,Fellow,IEEEAbstract—Basedonaphysicalunderstandingofphase-nois
6、emechanisms,apassiveLCfilterisfoundtolowerthephase-noisefactorinadifferentialoscillatortoitsfundamentalminimum.ThreefullyintegratedLCvoltage-controlledoscillators(VCOs)serveasaproofofconcept.Two1.1-GHzVCOsachieve153dBc/Hzat3MHzoffset,biasedat3.7mAfrom2.5V.A2.1-GHzVCOachie
7、ves148dBc/Hzat15MHzoffset,taking4mAfroma2.7-Vsupply.Alloscillatorsusefullyintegratedresonators,andthefirsttwoexceeddiscretetransistormodulesinfigureofmerit.Practicalaspectsandrepercussionsofthetechniquearediscussed.IndexTerms—Analogintegratedcircuits,CMOSoscillators,noise
8、filtering,optimization,phasenoise,radiofrequency,spiralinductors,voltage-controlledoscillators.(
