标签: 20059272132275

20059272132275AnRFtoBasebandDesignforaPCS1900HandsetLiamDevlin,SteveFitz,GeoffSmithsonTheauthorsarewithPlextekLtd,LondonRoad,GreatChesterford,Essex,CB101NY,Engand(+441799533200)differencebetweenthesystems,isthefrequencyofoperation.ThisissummarisedinTable1.StandardGSM900DCS1800GSM1900Uplink(MobiletoBTS)890-915MHz1710-1785MHz1850-1910MHzDownlink(BTStoMobile)935-960MHz1805-1880MHz1930-1990MHzAbstractGSMiscurrentlythemostwidelyadopteddigitalcellulartelephonystandardintheworld.ThispaperpresentsdetailsofthedesignoftheRFtobasebandsectionofaPCS1900cellularhandset.Detailedblockdiagrams,circuitdescriptionsandmeasuredperformancearepresented.TheradiohasbeendesignedtooperatewithabasebandEvaluation……