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ID:36638960
大小:2.08 MB
页数:60页
时间:2019-05-13
《移动通信带状网中的智能天线研究》由会员上传分享,免费在线阅读,更多相关内容在学术论文-天天文库。
1、分类号:U4910710—20040525c】
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13、IfIY1527995骧专犬海硕士学位论文移动通信带状网中的智能天线研究导师姓名职称申请学位级别论文提交日期学位授予单位高海郭元术教授答辩委员会主席塑墨噬学位论文评阅人宣丝塑墅壅奎AbstractSmartantennaasoneofthecoretechnologiesin3Ghasbecometheresearchfocusofmobilecommunicationfield,becauseithasl
14、otsofadvantages.Inthecoming3Gage,spacedistributionofthesignalinzonalnetworkisrestrictedincertainscale.Inordertoadapttothistrend,lineararrayisusedtodesignsmartantennawhichissuitableforzonalnetworkbasestation.Inthispaper,firstlyuniformlineararraypatternfunct
15、ionisanalyzed.Fromtheanalysis,thecharacteristicthatinzonalnetwork,mainlobe’SwidthofauniformlineararrayCanavoidsignal’Sdirectionofarrival’swidthexcessincellularnetworkisdiscovered.Atthesametime,uniformlineararraypatterniscomparedwithuniformcirculararray.Fro
16、mthecomparison,theconclusionthatlineararrayshouldbeusedinzonalnetworkbasestationisarrived.Secondly,nonuniformlineararrayisdiscussedindetail.RestrictedminimumredundancylineararrayandoptimumGolombRulersisusedtorearrangeuniformlineararray.Bythisrearrangement,
17、elementsnumberandcostarereduced.Atthesametime,betterresolutionandsmallermainlodewidthofpatternaregotten.Atlast,theconclusionthatredundancyofthelineararrayCanbejudgedbydifferencetriangleisarrived.LineararraybeamcannotSCan【--7/",万】inhorizontalandwhenthedirec
18、tiondeviatesnormal,themainlobewidthofthepatternwillwiden.Theemulationresultshowsthattheaboveshortcomingscanbeavoidedbyadoptinglineararrayinmobilecommunicationzonalnetworkbasestation.Zonalnetworkbasestationantennawhichadoptrestrictedminimumredundancylineara
19、rrayandOptimumGolombRulersCanresultintheincreaseofsidelobe.Butitwon’taffectbeamdirection.AnditcanalSOachievesmallermainlobewidth.Forthesereasons,thetwononuniformlineararrayantennasCanbeusedinmobilecommunicationzonalnetworkstation.Keywords:Smartantenna;Zona
20、lnetwork;Uniformlineararray(ULA);Restrictedminimumredundancylineararray(RMRLA);OptimumGolombRulers论文独创性声明本人声明:本人所呈交的学位论文是在导师的指导下,独立进行研究工作所取得的成果。除论文中已经注明引用的内容外,对论文的研究做出重要贡献的个人和集体,均已在文中以明确方式标明。本论文中不包含任何未加明确注明的其
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