摘要
机载天线除了对其自身工作辐射性能有要求外,还对其散射性能提出了高要求。由于飞机平台外形及材料具有不同的特性,导致天线在装机后产生不同程度的辐射畸变,从而影响传感器的辐射性能,直接影响其通信、探测、干扰等功能。同时从散射角度看,由于空间角域电磁辐射能量分布发生变化,导致其散射性能也发生变化。通过精确分析典型模型的天线辐射畸变、散射特性及有源对消等问题,分析了辐射畸变、散射及对消对机载平台射频特征的影响,最后提出了发展建议,对于机载天线工程设计具有很好的参考价值。
The airborne antennas have many radiation requirements for their radiation performance. Thescattering of antenna becomes more and more important in antenna design at the same time. Different char-acters of the geometry and material of airplane cause distortion of the radiation pattern of airborne antennaso that the functions such as communication,detection,and jamming will be influenced. In this paper,typi-cal airplane model and airborne antenna are analyzed to study the influence of airborne antenna radiationand scattering on RF characters. Finally,suggestions are provided. The analysis and conclusions have refer-ence value for engineering design of airborne antenna.
出处
《电讯技术》
北大核心
2014年第12期1669-1673,共5页
Telecommunication Engineering
关键词
机载天线
电磁辐射与散射
有源对消
畸变
射频特征
airborne antenna
electromagnetic radiation and scattering
active cancellation
distortion
RF character
