在線微波測碳儀用六端口電路系統(tǒng)的研制.pdf

1、電子科技大學碩士學位論文在線微波測碳儀用六端口電路系統(tǒng)的研制姓名：唐亮申請學位級別：碩士專業(yè)：無線電物理指導(dǎo)教師：賈寶富20070501ABSTRACTABSTRACTThetechnologydevelopmentofmicrowavemeasurementiscloselylinkedwiththedevelopmentofmicrowavedevices，furthermoremicrowavemeasurementswithll

2、ighpreciseandspeedinessalwaysdependontheresearchandexploitationofprecisedevicesSixportmeasurementtechnologybasedOilpowersisakindofeffectivemethodwhichisabletopreciselymeasurethereflectioncoefficientsofmicrowaveunitsAtthe

3、sametimethistechnologyCanbewidelyappliedinmanydomains，suchasmicrowavemeasurement，securitydetectionindustrialdetection，andSOonTherefore，thesixportmeasurementtechnologyhasbeenfocusedonbymanyresearchersinmanycountriessincei

4、twasproposed，andhasbecomeoneofthemostimportanttoolsformicrowavemeasurementInordertealizetherealtime，continuous，precisemeasurementofthecarboncontentoftheflyashintheflueofthepowerstation，wetransferthemeasurementofthecarbon

5、contenttothemeasurementofthemicrowavenetworkparametersphasedeviationandattenuationcoefficientbymicrowavesensorsInthispaperakindofmicrostripcircuitWasdesignedandrealizedonthebaseofthesix—portnetworktechnique，whichcansimul

6、taneouslymeasurethephasedeviationandattenuationcoefficientSixportnetworkpossessesmanyadvantage，such弱simplecircuitform，calibrationthroughsoftwareandhi!曲measurementprecisionWeanalyzedthegeneralsixportnetworkanddiscussedthe

7、generalformulae，designnormandcalibrationThedetailedanalysisofthedismatchingandQpomdistributionofakindofspecialsixportnetworkcomposedofperfectdirectionalcouplerandmatchedreciprocallossless價eportWasprovidedandoptimummicros