资源描述：
《High-Efficiency Harmonic Loaded Oscillator with》由会员上传分享，免费在线阅读，更多相关内容在学术论文-天天文库。
1、1670IEEETRANSACTIONSONMICROWAVETHEORYANDTECHNIQUES,VOL.47,NO.9,SEPTEMBER1999High-EfficiencyHarmonicLoadedOscillatorwithLowBiasUsingaNonlinearDesignApproachMoon-QueLee,Member,IEEE,Seung-JuneYi,SangwookNam,Member,IEEE,YoungwooKwon,Member,IEEE,andKyung-WhanYeom,Member,IEEEAbstractÐWepre
2、sentadesignmethodforanoptimizedhigh-harmoniceffectsonoutputpowerofanoscillator,nopaperhasefficiencyharmonicloadedoscillator.Theproposedapproachyetbeenreportedthatexplicitlydealswithharmoniceffects.predictstheperformanceofoscillatorsincludingoutputpower,Inthispaper,wepresentanonlinear
3、designmethodforadc±RFconversionefficiency,anddc-biascurrentshiftduringharmonicloadedoscillatorandclearlyshowtheeffectsofstart-uptransition.Inthismethod,theperformanceoftheoscil-latorcanbeoptimizedbasedontheperformanceanalysisofthefundamentalloadandharmonicloadontheperformanceofactive
4、deviceundertheassumedoperationconditions.Theeffectsanoscillator.offundamentalandharmonicloadingonoutputpowerandThecontentsofthispaperareasfollows.InSectionII,efficiencyareinvestigatedbytheproposedapproach.Twokindswepresentasystematicnonlinearoscillatordesignapproachofstabilityconditi
5、onsareaddressedforanoscillatorinitiallywhichcanpreciselydealwithnonlinearphenomena,includ-biasedatalowgatevoltage.Usingtheproposedapproach,wedesignanoscillatorthathasahighefficiencyof61%at1.86GHzingoutputpower,efficiencyandharmoniceffects.Inthiswithaverylowbiasvoltageof2.0V.approach,t
6、heembeddingnetworkelementsaresynthesizedthroughtheanalysisoftheRFoperatingpointoftheactiveIndexTermsÐHarmonicloadedoscillator,harmonicloading,high-efficiencyoscillator,loadline,microwaveoscillator,oscilla-device.InSectionIII,wediscusstheloadlinesformaximumtorstability,stability.power
7、andformaximumdc±RFconversionefficiency.InSectionIV,weinvestigatestart-upandbuild-upcriteriaforoscillators.Thestart-upcriterionisamicrowaverepresentationI.INTRODUCTIONoftheNyquiststabilitycriterionusingthe-parameters.TheNoscillatorcanbeviewedasanactivedevicewithbuild-upconditiontellsu
8、swhetherthenoisesig
