LDMOS功放设计-很工程性的一篇论文!!!国外硕士论文LDMOS POWER AMPLIFIER

PROJECTREL-MQP-7990LDMOSPOWERAMPLIFIERDESIGNBy______________________________MustafaKoncaStevenJ.MillerDate:April24,2008MajorQualifyingProjectReportsubmittedtotheFacultyofWORCESTERPOLYTECHNICINSTITUTEinpartialfulfillmentoftherequirementsforthedegreeofBachelorofScience1.LDMOS2.POWERAMPLIFIER3.RFApproved:_____________________________ProfessorReinholdLudwig,AdvisorThisreportrepresentstheworkoftwoWPIundergraduatestudentssubmittedtothefacultyasevidenceofcompletionofadegreerequirement.WPIroutinelypublishesthesereportsonitswebsitewithouteditorialorpeerreview.iiAbstractThefollowingreportdocumentstheMajorQualifyingProjectinvolvingthedesign,implementationandtestingofanRFpoweramplifierdesignedforanoperatingspectrumbetween1930-1990MHz.Thereportreflectsadesignapproachrelyingoncomputersimulations(usingADSsoftware).Theprojectthenusestheresultsofthesesimulationstowardthedevelopmentofaphysicalcircuit.Thecircuitisthenrefinedforgreaterperformancethroughtestingandtuning.Themaindesignfocusoftheprojectwastheimprovementofvideobandwidth.iiiAcknowledgementsThisprojectwasmadepossiblethroughthegenerouscontributionsofKorneVennemaandhiscolleaguesatNXPSemiconductors.Morespecifically,theprojectteamwouldliketothankYongYangforhisguidanceinsystemmodelingandsimulationinADS.TheprojectteamwouldalsoliketothankTimothyWoodforhiseffortsinorderingthefinallayout,sourcingcomponents,obtainingpartinformationandhelpingintheconstructionoftheamplifier.SpecialthanksgotoKorneVennemaforhissupportandguidancethroughouttheproject,whichconsistedofnotonlyprovidingimportantdevicedocumentationandperformancedata,butalsoaccesstosophisticatedlaboratoryequipmentandhisvaluableinsightsregardingRFcircuitdesignandengineeringingeneral.ivTableofContentsAbstract...............................................................................................................................................................iiAcknowledgements...........................................................................................................................................iiiTableofContents.............................................................................................................................................ivTableofFigures.................................................................................................................................................v1-Introduction....................................................................................................................................................12-BackgroundInformation...............................................................................................................................22.1-CodeDivisionMultipleAccess.............................................................................................................22.2-Multi-Carriervs.Single-CarrierConfigurations..................................................................................32.3-Inter-ModularDistortion(IMD)Products.........................................................................................43-ProjectStatementandObjectives................................................................................................................54-ComputerSimulations...................................................................................................................................64.1-TransistorCharacterization...................................................................................................................64.1.1-DCAnalysis.....................................................................................................................................64.1.2-LargeSignalS-Parameters(LSSP)................................................................................................84.1.3-LoadpullTest.................................................................................................................................104.2-InputNetworks.....................................................................................................................................154.2.1-ActiveBiasNetwork.....................................................................................................................154.2.2-InputMatchingNetwork.............................................................................................................174.3-OutputNetworks..................................................................................................................................234.3.1-DecouplingNetwork....................................................................................................................244.3.2-OutputMatchingNetwork..........................................................................................................285-PhysicalImplementation.............................................................................................................................305.1-Construction.............................