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文章从工程角度提出了在同一个抛物面跟踪天线系统上获得近似 CSC~2θ赋形波束的一种较为简便的方法——搜索板型,在较大范围内提高了跟踪天线系统的搜索能力且跟踪性能不受到影响;给出了近似分析计算数据和实验结果。实验结果表明,搜索板型天线的搜索特性对工作频带的响应不灵敏,在±3db 范围内得到较好的搜索方向图(近似 CSC~2θ);控制搜索板的位置可进行搜索和跟踪两种工作状态的良好转换。
In this paper, a simple and convenient method to obtain approximate CSC ~ 2θ shaped beam on the same parabolic tracking antenna system is put forward from the engineering point of view, which improves the searching ability of the tracking antenna system and tracks it in a wide range Performance is not affected; approximate analysis and calculation data and experimental results are given. The experimental results show that the search characteristics of the search panel antenna are insensitive to the working frequency band, and a good search direction (approximate CSC ~ 2θ) is obtained in the range of ± 3db. The control search board position can be searched and tracked Good working state transition.