摘要
基于三维电磁仿真软件FEKO,首先设计了目前航向信标(localizer,LOC)广泛使用的对数周期偶极子天线(log-period dipole antenna,LPDA);然后仿真分析了双频12/16/24单元LOC的水平覆盖性能;最后通过改变双频12单元LOC天线分配单元(antenna distribution unit,ADU)参数,分析了各参数对LOC水平覆盖性能的影响。结果表明:所设计的双频LOC的水平覆盖性能满足国际民航组织(International Civil Aviation Organization,ICAO)《附件10》的要求;所阐述的LPDA设计、双频LOC阵列天线布设和阵元馈电方式可为ILS的国产化提供一定的借鉴和参考,并在LOC性能指标的监视和校飞时,为调整LOC的水平覆盖性能提供相应的理论依据。
Based on the three-dimensional electromagnetic simulation software FEKO,the log-period dipole antenna(LPDA)widely used in current localizer(LOC)was designed.Then the horizontal coverage performance of dual-frequency 12/16/24 unit LOC was simulated and analyzed.Finally,by changing the dual-frequency 12-cell LOC antenna distribution unit(ADU)parameters,the influence of each parameter on the LOC horizontal coverage performance was analyzed.The results show that the designed horizontal coverage performance of dual-frequency LOC meets the requirements of the International Civil Aviation Organization(ICAO)Annex 10.The LPDA designed,as well as dual-frequency LOC array antenna layout and array element feeding method,can be domestically produced by ILS.It provides certain reference and theoretical basis for adjusting the horizontal coverage performance of LOC during the monitoring and flight of LOC performance indicators.
作者
倪育德
王宁
NI Yude;WANG Ning(School of Electronic Information and Automation,Civil Aviation University of China,Tianjin 300300,China;Key Laboratory of Civil Aircraft Airworthiness Technology,CAAC,Tianjin 300300,China)
出处
《中国科技论文》
CAS
北大核心
2019年第7期765-772,共8页
China Sciencepaper
基金
国家重点基础研究发展计划(973计划)资助项目(2016YFB0502402)
关键词
双频航向信标
阵列天线
天线分配单元
对数偶极子天线
辐射方向性图
dual-frequency localizer
array antenna
antenna distribution unit(ADU)
log-period dipole antenna(LPDA)
radiation pattern
