品牌：安捷伦agilent产品指标：250kHz-40GHz 产品信息：TheE8254APSGmicrowavesignalgeneratorwasdiscontinuedonNovember1,2002.Agilentwillcontinuetosupportthisproductforthefiveyearsfollowingitsdiscontinuancedate.TherecommendedreplacementproductsarethePSGhigh-performancesignalgenerators.　　TheAgilentPerformanceSignalGeneratorseriesoffersaccuratecharacterizationofproductsandeliminatestheneedofanexternalamplifierfortestinghighpowerdevices.ThePSGseriesprovides14dBmat40GHz(option1EA),reducingoverallequipmentandtestcosts.ThesuperiorlevelaccuracyofthePSGseries(+/-0.7dB)reducestestuncertaintiesandimprovesproductionthroughput.Standardproductshavephasenoiseperformanceof-85dBc/Hzat1kHzoffsetand-110dBc/Hzat20kHzoffsetanda10GHzcarrier.ThePSGprovidesimprovedperformancewithoptionUNJof-98dBc/Hzat1kHzoffsetand-110dBc/Hzat10kHzoffsetanda10GHzcarrier.BecausethenewPSGseriesguaranteesaccurateevaluationofdevices,errorscanbepinpointedearlyoninthedesignprocessthusresultinginareduceddevelopmenttime.特性 Fastpulsefrom500MHzto3.2GHzwithOptionHE6 Widestfrequencyrange(250kHzto40GHz)with0.01Hzfrequencyresolution-standard Highestpoweravailable(+9/+14)at40GHzwithexcellentlevelaccuracy(0.7and0.9dB) SSBphasenoiselessthan-110dBc/Hzat20kHzoffsetat10GHzcarrier OptionalSSBphasenoiselessthan-98dBc/Hzat1kHzoffsetat10GHzcarrier Longwarranty1-yearstandardand5-yearoptional DigitalSweepfunctions(listandstep)withcapabilityofcalibratingeverypointatthetestportusingtheuserflatnesscorrection Easyfrequencyextensionto110GHzwithAgilent’s83550Series AM,FM,phase,andpulsemodulation Dualinternalmodulationgeneratorswithsine,square,triangle,positive/negativeramp,GaussianNoise,UniformNoise,SweptSine,DualSineupto1MHzrates Internalpulsegenerator14MHzmaxPRF