民航甚高频天线隔离度分析研究  

Isolation Analysis of Very High Frequency Antenna in Civil Aviation

作　　者：赵晓亮 ZHAO Xiaoliang(Beijing Air Traffic Management Technology Co.,Ltd.,Beijing 100621,China)

机构地区：[1]北京空管工程技术有限公司,北京100621

出　　处：《通信电源技术》2023年第24期48-50,共3页Telecom Power Technology

摘　　要：研究民航甚高频系统的天线布局,介绍了民航甚高频通信的基本理论。甚高频收发一体机的收发天线需同址安装,共有3种布局,分别为水平布局、垂直布局和组合布局。3种天线布局均能产生不同的干扰程度,对3种不同布局收发天线间的隔离度进行分析,通过推导接收衰减度的表达式,用衰减度值来表示隔离度。对隔离度表达式进行分析,隔离度与收发天线的间距以及发射信号的频率相关。利用MATLAB对3种布局进行仿真,对比不同频率和不同间距情况下3种布局方式的衰减度。The antenna layout of civil aviation very high frequency system is studied,and the basic theory of civil aviation very high frequency communication is introduced.The transmitting and receiving antennas of very high frequency transceiver need to be installed at the same location,and there are three layouts,namely horizontal layout,vertical layout and combined layout.All three antenna layouts can produce different degrees of interference.The isolation between three different antenna layouts is analyzed,and the expression of reception attenuation is derived,and the isolation is expressed by attenuation value.The expression of isolation degree is analyzed,and the isolation degree is related to the distance between transmitting and receiving antennas and the frequency of transmitting signals.MATLAB is used to simulate the three layouts,and the attenuation of the three layouts with different frequencies and different spacing is compared.

关 键 词：甚高频 天线布局 隔离度 衰减 

分 类 号：TN914[电子电信—通信与信息系统]