【摘要】 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。更多还原

【Abstract】 Due to the speciality of electromagnetic environment for smart antenna, low side-lobe and high-speed beam-forming are two key problems. Focusing on the geometry of smart antenna, the effects of center element and the ring number of circular array on side-lobe are calculated and analyzied; the spatial symmetry of array factor for spherical surface array is discussed also.The conclusion derived can be used as a reference for the geometry design of smart antenna.更多还原