智能数字多波束天线技术研究

The employment of smart antennas is mainly in base station and the performance of base station antennas play a significant role. The analysis and pattern synthesis of some kinds of complicated base station antennas using genetic algorithm are presented , a new software for analyzing.base station antennas is made ; the gain pattern of an element in an antenna array and the un-roundness of the pattern with the mutual coupling considered is.analyzed ;DOA estimation algorithm for smart antenna is studied;two novel.Multi-Medium CDMA downlink beam-forming algorithms are proposed ; two setes.of RF circuits in smart antenna are made,genetic algorithm is applied in the.optimization of gain and noise figure . Several new ideas on smart antenna are.proposed , which has practical value and great significance to study and development of microwave devices

. 针对典型通信环境研究鲁棒性好、实用的盲波束形成算法；采取计算机模拟的方法，结合常用调制方式，评价应用智能数字多波束天线的部分方案，最终提出可行方案，并给出性能、效益分析；进一步以微带天线形式研制一副16阵元的原理性智能数字多波束天线阵，并进行通信实验验证、测试。这一研究可望为数字蜂窝移动通信及卫星通信带来显著的容量改善与抗干扰性能的增强。