符合ISO-IEC 18000-6C協(xié)議的UHF RFID標簽的射頻模擬前端設(shè)計.pdf

1、天津大學(xué)碩士學(xué)位論文符合ISOIEC180006C協(xié)議的UHFRFID標簽的射頻模擬前端設(shè)計姓名：李鳳陽申請學(xué)位級別：碩士專業(yè)：微電子學(xué)與固體電子學(xué)指導(dǎo)教師：毛陸虹201112ABSTRACTRadioFrequencyIdentification(RFID)technologyasaHightechwithgreatprospects，hasbeenwidelyusedinrecentyearsTheinternetofthingsw

2、hichiscomposedwithRFID，wirelessnetworkandsensor，isevenwidelyconcernedinthepastseveralyearsTheUHFpassiveRFIDtagworkingintheUHFsegmentreceivedwideattentionintheseyearsforlongworkingdistance，strongadaptability，withoutbatter

3、yandLowcostThisworkpresentsthedesignoftheanalogfrondend(AFE)circuitsforaUHFRFIDtagincompliancewiththeISO／IEC180006Cprotoc01ThelowpowerAFEcircuitsincludeavoRagerectifieraregulatorandanoveldemodulatorInorderteducethecostof

4、thechip，NMOStransistorswithzerothresholdvoltageareusedintherectifierinsteadoftheSchottkydiodeTheworkalsoanalyzedtheimpactofthedeviceparametersonpropertiesofchargepumpInordertoavoidthehighvoltagebreakdownthedevices，thecha

5、rgepumpisfollowedbyalimitercircuitTheclampingvolmgeofthelimiteris26VTheregulatorcarlgeneratedastable2VoutputvoRageandthesettletimeis201as，thequiescentcurrentisonly13I，tATheASKdemodulatoremploysadifferentiatorcircuit，whic

6、hextendsthevoltagerangeoftheinputRFsignal，solvingthedemodulatingproblemwhenthetagworksclosetoareadenTheentirecircuitshavebeenprocessedwithSMICO18m2P4MCMOStechnologyThewholeAFEoccupiesadieareaof720Itm母390pmandthetotaloper

7、ationcurrentislessthan3心Thetestresultsshowthattheregulatorcanprovideastableoutputvoltageof215VandthedemodulatorcircuitcanworkwellThecommunicationrangeofthechipislongerthan7mKEYWORDS：RFID(RadioFrequencyIdentification)，pas