主要介绍核磁共振波谱仪器射频功率放大器的结构与设计方法
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[,1.StateKeaboratorfManeticResonanceandAtomicandMolecularPhsicsyLyogy
,WuhanCenterforManeticResonance(WuhanInstituteofPhsicsandMathematicsgy
),Wu;ChineseAcademfScienceshan430071,Chinayo
,]2.GraduateSchooloftheChineseAcademfSciencesBeiin00049,Chinayojg1
:犃犫狊狋狉犪犮狋ThedesinandimlementationofabroadbandRFpoweramlifierusedinnu?gpp
clearmaneticresonancesectrometerwereintroduced.Basedonatwo?staearchitec?gpg
,,thepoweramlifierwascomosedofahihfreuencoduleabroadbandmod?tureppgqym
,uleandtwodirectionalcoulerstomeetvariousreuirementsofNMRexeriments.pqp
,falltimeandpowerlinearitfthepoweramlifierwasmeasuredonaTherisetimeyop
home?built500MHzNMRsectrometer.ComarisonofNMRsensitivitemonstratedppyd
oodperformanceofthispoweramlifierincommonNMRexeriments.gpp
:NMR,,,moweramlifier犓犲狅狉犱狊transmissionlinetransformeratchinircuitsppgc狔狑
:,::orresondinuthorLiuChao?anTel027?87198790,E?mailchliu@wim.ac.cn. ?Cpgaygyp