由于智能天线所处电磁环境的特殊性 ,实现低副瓣特性及快速波束赋形尤其重要。本文从阵型角度出发 ,计算了圆阵中心阵元、圆阵层数及阵元密度分布对于降低副瓣的作用 ,并分析了球面阵列的辐射特性 ;所得结论可供智能天线的阵型设计参考。 Due to the particularity of the electromagnetic environment in which the smart antenna is located, it is especially important to achieve low sidelobe characteristics and fast beamforming. In this paper, from the formation point of view, the calculation of the center array of circular array, the number of circular arrays and array density distribution to reduce the role of sidelobes, and analysis of the spherical array of radiation characteristics; the conclusions can be smart antenna array design reference.