等离子体前馈抛物面隐身天线的一体化设计

内容简介：研究了等离子体前馈抛物面隐身天线一体化设计的关键性问题。根据单反射面天线的经典理论公式设计了金属前馈抛物面天线和等离子体前馈抛物面天线,并利用CST仿真软件计算了它们的辐射特性,分析了影响等离子体前馈抛物面天线辐射和散射性能的关键参数。仿真表明等离子体抛物面隐身天线具有和金属抛物面天线一样的辐射性能,同时由于等离子体产生和消失的可控性,不工作时就只有介质外壳,具有极低的RCS,其在带内和带外的单站RCS缩减程度和带宽均大于以往相关文献的设计。通过对等离子体反射前馈抛物面天线的研究,为今后进一步实验研究和开发等离子隐身天线奠定了理论基础。

Abstract：In this paper,the incorporate design of plasma forward-feed type parabolic stealth antenna is investigated.Firstly,based on the classic design formula for single reflector conductor antenna,the traditional metallic forward-feed type parabolic antenna and the plasma forward-feed type parabolic antenna are designed.Then,the radiation characteristics of the traditional forward-feed type parabolic antenna and the plasma one are calculated by using the commercial software CST.Whereafter,how do the plasma parameters affect the radiation characteristics of plasma parabolic antenna is discussed and analyzed together with its scattering characteristics.Research results indicate that the plasma reflector stealth antenna has the same radiation characteristics as the traditional mental reflector antenna and extremely low RCS when the plasma on the antenna is not working,which shows a much more reduction of the mono-static RCS and wider RCS reduction band in comparison with other designs in previous references with the controllability of plasma＇s generation and fadeaway.The investigation on the plasma forward-feed type parabolic stealth antenna to date will lead to a valuable groundwork for further experimental research and development of plasma stealth antennas.

作者：殷雄, 张厚, 麻来宣, 陈国祥,

关键词：等离子体, 前馈抛物面天线, 雷达散射截面, 隐身,