

如果您无法下载资料,请参考说明:
1、部分资料下载需要金币,请确保您的账户上有足够的金币
2、已购买过的文档,再次下载不重复扣费
3、资料包下载后请先用软件解压,在使用对应软件打开
基于注入锁定的RF低功耗正交本振信号产生电路 Introduction: Inmoderncommunicationsystems,theuseoflowpowerRFsignalshasbecomeincreasinglyimportantduetoitseffectivenessinincreasingthecommunicationrangeandreducingthepowerconsumption.Thelocaloscillator(LO)isavitalcomponentinanyRFcommunicationsystemasitgeneratestheRFsignalwhichismixedwiththemodulatedsignaltoproduceanintermediatefrequency(IF)signal. Inthispaper,weproposeanewmethodofgeneratingalowpowerRFsignalusingtheinjection-lockedfrequencysynthesizer.Theproposedcircuitexploitstheadvantagesoftheinjectionlockingtechniquetoproduceahighlystableandlow-phasenoiseRFsignalwithlowpowerconsumption. Injection-lockingtechnique: Theinjection-lockingtechniqueisawell-knownmethodofgeneratingahighlystableandlow-phasenoiseRFsignal.Itinvolveslockingafree-runningoscillatortoastrongerexternalsignalorareferencefrequency.Thisensuresthatthefrequencyofthefree-runningoscillatorispreciselyequaltotheexternalsignal,makingthefrequencyoftheoscillatorhighlystableandpredictable. RFsignalgenerationusinginjectionlocking: Theproposedcircuitusesavoltage-controlledoscillator(VCO)asthefree-runningoscillatorandareferencefrequencyasthelockingsignal.TheVCOfrequencyiscontrolledbytheinjection-lockingofthereferencefrequency. Theproposedcircuitconsistsofamixercircuit,abuffer,andaninjection-lockedVCO.Thereferencefrequencyisfedintothemixercircuitalongwiththemodulatedsignal.Theoutputofthemixeristhenfedintothebufferwhichamplifiesthesignaltoanappropriatelevel.ThebufferoutputsignalistheninjectedintotheVCOcircuitwhichisdesignedtooperateinaninjection-lockedmode.TheVCOfrequencyisthenlockedtothereferencefrequencyensuringthestabilityoftheoutputRFsignal. Simulationresults: TheproposedcircuitwassimulatedusingCadenceSpectreRFSimulationtool.ThesimulationresultsshowedthattheproposedcircuitproducesahighlystableRFsignalwithlowphasenoise.Thepowerconsumptionofthecircuitwasfoundtobelow,makingitsuitableforlow-powerapplications. Conclusion: Inthispaper,weproposedaninjection-lockedfrequencysynthesizercircuitforg

快乐****蜜蜂
实名认证
内容提供者


最近下载
最新上传
商务英语BEC考试高级阅读真题.docx
妈妈的礼物作文用户编辑原创.docx
商务英语BEC考试阅读辅导素材.docx
商务英语BEC考试网上报名流程.docx
2025年黑龙江省七台河市勃利县数学七上期末达标测试试题含解析.docx
2025年黑龙江省七台河市勃利县数学七上期末综合测试试题含解析.docx
2025年黑龙江省七台河市勃利县数学七上期末质量跟踪监视模拟试题含解析.docx
2025年黑龙江省七台河市勃利县数学七上期末联考试题含解析.docx
2025年黑龙江省七台河市勃利县数学七上期末检测模拟试题含解析.docx
2025年黑龙江省七台河市勃利县数学七上期末经典试题含解析.docx