针对机载X 波段圆口径相控阵天线,文中提出了五种典型子阵划分方法,以解决相控阵天线瞬时宽带工作时宽角扫描波束色散的难题,同时,实现指向角偏差、第一副瓣电平、增益、平均副瓣电平、最大副瓣电平等典型参数性能最优化;在仿真分析基础上,总结了子阵划分方法与天线性能之间对应关系。

In order to solve the problem of wide angel scanning beam dispersion in the instantaneous wideband of the phased array antenna. Five typical sub-array division methods are proposed in this paper. At the same time, optimal performance of the typical parameters is realized, including the pointing angle deviation, gain, first side lobe level, mean side lobe level, max side lobe level and so on. On the basis of simulation analysis, the correspondence between sub-array division method and antenna performance is summarized.

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