甚高频全向天线与定向天线合装应用及性能分析  

Application and performance analysis of VHF omnidirectional antenna and directional antenna combined

作　　者：闫秋芳 YAN Qiufang(Technical support Department,Civil Aviation Qinghai Air Traffic Control Branch,Xining 810000,China)

机构地区：[1]民航青海空管分局技术保障部,青海西宁810000

出　　处：《长江信息通信》2024年第5期175-177,共3页Changjiang Information & Communications

摘　　要：在一些特殊地理位置上扩增甚高频台址非常困难,为克服甚高频信号覆盖盲区问题,需要一种合适的天线阵列方式来显著增强射频信号和增益。文章在仿真分析全向天线覆盖特性、不同间距的定向天线阵列覆盖特性及全向天线与定向天线组合的天线辐射特性的基础上,通过搭建的测试平台验证了全向天线与定向天线组合的天线阵列方式对甚高频信号具有极大的增强效果,可以在特定方向上扩展甚高频的覆盖范围,克服覆盖盲区,保障通信畅通。It is very difficult to amplify VHF stations in some special geographical locations.In order to overcome the problem of VHF signal coverage blind area,an appropriate antenna array mode is needed to significantly enhance the RF signal and gain.Based on the simulation analysis of omnidirectional antenna coverage characteristics,directional antenna array coverage character-istics of different spacing and antenna radiation characteristics of omnidirectional antenna and di-rectional antenna combination,the antenna array mode of omnidirectional antenna and direc-tional antenna combination has great enhancement effect on VHF signal through the built test platform,It can expand the coverage range of VHF in a specific direction,overcome the cover-age blind area,and ensure smooth communication.

关 键 词：甚高频 全向天线 定向天线 覆盖范围 

分 类 号：TN820[电子电信—信息与通信工程]