第46卷第1期压电与声光Vol.46No.12024年2月PIEZOELECTRICS&ACOUSTOOPTICSFeb.2024收稿日期:2023-10-23作者简介:舒海峰(1998-),男,四川省射洪市人,硕士生。通信作者:杜成珠(1971-),女,海南省海口市人,副教授。文章编号:1004-2474(2024)01-0103-05DOI:10.11977/j.issn.1004-2474.2024.01.019四元超宽带高隔离MIMO槽天线的设计舒海峰1,杜成珠1,杨福慧2(1.上海电力大学电子与信息工程学院,上海200082;2.中电科微波通信(上海)有限公司,上海201800)摘要:提出了一款基于FR4的共面波导(CPW)馈电四元超宽带(UWB)高隔离MIMO天线。该天线由4个单元槽天线组成,天线尺寸为65mm×65mm×0.8mm。通过采用缺陷地结构和切角的方式实现了天线的超宽带特性。单元天线相互垂直放置实现了极化分集,同时在天线中间加载隔离栏栅结构,增加了天线的隔离度。对天线进行加工测试,测试结果能覆盖2.86~11.1GHz并在频段内隔离度大于20dB,天线具有高隔离、超宽带和较低的包络相关系数(ECC<0.006)的特点。天线采用(CPW)的馈电形式,更易应用于集成电路中,适用于各种超宽带系统。关键词:槽天线;超宽带;多输入多输出(MIMO);高隔离度中图分类号:TN822文献标识码:ADesignofFour-CellUWBMIMOSlotAntennawithHighIsolationSHUHaifeng1,DUChengzhu1,YANGFuhui2(1.CollegeofElectronicsandInformationEngineering,ShanghaiUniversityofElectricPower,Shanghai200082,China;2.CETCShanghaiMicrowaveCommunicationCO.,Ltd.,Shanghai201800,China)Abstract:ACPW-fedquaternaryultra-wideband(UWB)highisolationantennabasedonFR4isproposedinthispaper.Theantennaconsistsoffourcellslotantennaswithoverallsizeof65mm×65mm×0.8mm.Theultra-widebandcharacteristicsoftheantennaareachievedthroughtheuseofdefectivegroundstructuresandcornercuts.Theunitantennasareplacedverticallytoeachothertoachievepolarizationdiversity,atthesametime;anisolationfencestructureisloadedinthemiddleoftheantenna,whichgreatlyincreasestheisolationoftheantenna.Thean-tennawasfabricatedandtested.Thetestresultsshowthattheproposedantennacancoverthefrequencyof2.86-11.1GHzandtheisolationisgreaterthan20dBintheband.Ithasthecharacteristicsofhighisolation,ultra-wide-bandandlowenvelopecorrelationcoefficient(ECC<0.006).TheantennaadoptstheCPWfeeding,whichiseasiertoapplyinintegratedc...
