一种高增益车载复合全向天线设计  

Design of High Gain Vehicle mounted Composite Antenna

作　　者：张光生[1] 张志文 代青峰 朱军宝 ZHANG Guang-sheng;ZHANG Zhi-wen;DAI Qing-feng;ZHU Jun-bao(No.36 Research Institute of CETC,Jiaxing Zhejiang 314033,China)

机构地区：[1]中国电子科技集团公司第三十六研究所,浙江嘉兴314033

出　　处：《通信对抗》2024年第3期47-50,共4页Communication Countermeasures

摘　　要：提出了一种工作于430MHz~5250MHz频段的适合车载环境的复合全向天线。该天线集成了430MHz~435MHz、902MHz~928MHz、1400MHz~1444MHz、5170MHz~5250MHz四个频段天线,并通过共用安装底板输出。为了实现对空方向信号的接收,通过调整天线并馈的微带结构,使得天线在902MHz~928MHz和1400MHz~1444MHz频段方向图上倾5°。调整地线的宽度以方便馈线的走线。为了减小馈线对天线性能的影响,底端天线选择中空的套筒天线,将馈电线缆从中空的套管穿过。仿真表明在工作频段内天线电压驻波比不大于2.5,天线增益分别为:≥2dBi(430MHz~435MHz),≥3dBi(902 MHz~928 MHz,1400 MHz~1444MHz),≥5dBi(5170 MHz~5250MHz)。A composite ominidirectional antenna operating in 430~5250MHz band suitable for vehicle environment of armored vehicles is proposed.The antenna integrates four frequency band antennas of 430~435MHz、902~928MHz、1400~1444MHz、5170~5250MHz,and outputsthemthroughacommon mounting base plate.In order to meet the requirements of airborne target of the vehicle platform,the anten-na is inclined 5°above the 902-928MHz and 1400~1444MHz frequency band direction diagram by adjust-ing the microstrip line fed by the feeders on antenna performance,select a hollow sleeve antenna for the bottom antenna and route the feed cable through the hollow sleeve in the middle.The simulation results show that the antenna voltage standing wave ratio is less 2.5 in the working frequency band,and the anten-na gains are as follow:Gain≥2dBi(430~435MHz),Gain≥3dBi(902~928 MHz,1400~1444MHz),Gain≥5dBi(5170~5250MHz).

关 键 词：复合天线全向 

分 类 号：TN82[电子电信—信息与通信工程]