x与x2fku波段高分辨率频率合成技术分析

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1、东南大学硕士学位论文3．ThepaSsiVeloopfilterisD印lacedbytheactiVe100pfilterbaSedontheexistingX—bandMixing-PLLmodule．Theloopfilterandtheloopparametersaresimulatedaccordingtorequirementsofmephasenoise．Theoutputf-requencyisexpandedtouppersidebandwhichishi曲erthaIl9．6GHz．TheexperimentresultsdemonstratetllattheX-baIl

2、dsynthesizerhasa11output啪geof9．7～1O．4GHzaIldatypicalphaSenoiseof-107dBc／Hz@10kHz．ProblemsofMCucontrolandparameteroptimizationaresolVedduringtheexperimentofX依u-bandMixing_PLLsynthesizer．IthaSoutput啪geof11．1～11．8GHza11d12．2～12．9GHzwitha咖icalphasenoiseof-100dBc／Hz@10kHz．4．ThelayoutdesigIlaIldinte铲atio

3、nofme)(／壬“bandhi曲仔equencyresolution行equencysymhesizerarecarriedout．Forthepu印oseofrealizingminiaturizedaIldcompactsystem，problemsofconnectionofeachmodule，aSweUasthepowersupply谢ring，MCUcontrolline，aresettled．Throu曲theisolationbetweenmeanalogmodulesanddigitalmodules，theelectromagneticcompatibilit)roft

4、llesystemisimproVed，thereliabilityands切bilityisalsoeIlllanced．Inaddition，theintegrationofthesyStemisrealized，whichmakesitmoreconVenientforutilization。TheexperimentresultsshowthattheX-bandsynthesizerhaSaIlexcellentperfo肌anceonhi曲f论quencyresolutionofl0Hz，outputrangeof9．7～1O．4GHzaJlda够picalphasenoisea

5、t一108dBc／Hz@10kHz．111enon—integratedX依ubandsynthesizer，whichsolVestheproblemsofcommullicationwithMCUandthelowL0powerinput，alsoperf-onllswellwith行equencyresolutionofl0Hz，outputramgeof11．1～11．8GHzand12．2～12．9GHzwithatypicalphasenoiseof一100dBc／Hz@10kHz．Keywords：行equencysyntllesis，DDS，PLL，矗equencyresol

6、ution，phasenoiseV目录摘

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