北斗多频小型化导航终端天线设计与实现  

BeiDou Multi-Frequency Miniaturized Navigation Terminal Antenna Design and Implementation

作　　者：杨晓杰 YANG Xiaojie(Fuzhou Fuda Xinjie Antenna Technologies Co.,Ltd,Fuzhou 350108,Fujian,China)

机构地区：[1]福州福大信捷天线技术有限公司,福建福州350108

出　　处：《电气传动自动化》2023年第4期26-29,19,共5页Electric Drive Automation

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。The role of satellite navigation and positioning in national security,economic and social development is becoming more and more significant,and navigation terminals that are compatible with multiple navigation systems are more competitive.As an important component of the navigation terminal,the antenna needs to realize multi-frequency characteristics and two circular polarization characteristics at the same time in order to meet multi-system compatibility.In this paper,we design a multi-band miniaturized navigation terminal antenna for BeiDou,adopting a stacked structure to achieve multi-band coverage,setting a central symmetric metal perforation to improve port isolation,setting a metal patch around the antenna bottom dielectric to improve low elevation gain,and using a dielectric substrate with high dielectric constant to achieve miniaturization.After testing and verification,the terminal antenna designed in this paper meets the design requirements.

关 键 词：多频 小型化 终端天线 

分 类 号：TN82[电子电信—信息与通信工程] TP273[自动化与计算机技术—检测技术与自动化装置]