2023年第45卷第4期第26页文章编号:1005-7277(2023)04-0026-04电气传动自动化ELECTRICDRIVEAUTOMATION北斗多频小型化导航终端天线设计与实现Vol.45,No.42023,45(4):26~29杨晓杰(福州福大信捷天线技术有限公司,福建福州350108)摘要:卫星导航定位对于国家安全、经济和社会发展具有重要意义,具备多导航系统的导航终端竞争力更强。天线在导航终端中起到决定性作用,为满足多系统兼容性的基本需求,必须要保证能够同时实现多频特性和两种圆极化特性。本文设计了一款北斗多频段的小型化导航终端天线,采用堆叠结构实现多频段覆盖,通过配置中心对称的金属过孔来提高端口隔离度,在天线底层介质四周配置金属贴片来提高低仰角增益,并利用高介电常数的介质基板实现小型化。经过测试验证,本文所设计的终端天线满足设计要求。关键词:多频;小型化;终端天线中图分类号:TN82;TP273BeiDouMulti-FrequencyMiniaturizedNavigationTerminalAntenna(FuzhouFudaXinjieAntennaTechnologiesCo.,Ltd,Fuzhou350108,Fujian,China)Abstract:Theroleofsatellitenavigationandpositioninginnationalsecurity,economicandsocialdevelopmentisbecomingmoreandmoresignificant,andnavigationterminalsthatarecompatiblewithmultiplenavigationsystemsaremorecompetitive.Asanimportantcomponentofthenavigationterminal,theantennaneedstorealizemulti-frequencycharacteristicsandtwocircularpolarizationcharacteristicsatthesametimeinordertomeetmulti-systemcompatibility.Inthispaper,wedesignamulti-bandminiaturizednavigationterminalantennaforBeiDou,adoptingastackedstructuretoachievemulti-bandcoverage,settingacentralsymmetricmetalperforationtoimproveportisolation,setingametalpatcharoundtheantennabottomdielectrictoimprovelowelevationgain,andusingadielectricsubstratewithhighdielectricconstanttoachieveminiaturization.Aftertestingandverification,theterminalantennadesignedinthispapermeetsthedesignrequirements.Keywords:Multi-Frequency;Miniaturization;TerminalAntenna文献标志码:ADesignandImplementationYANGXiaojie北斗导航系统功能强大,能实现基于短报文通信的有源定位,以及无源定位功能[1,2]。北斗导航终端为了能够更加精确稳定的定位以及实现短信通信服务,将北斗一代和北斗二代的系统进行兼容是必然的趋势[3.4]。由于...