【摘要】 针对基于阵列天线的移动通信系统 ,讨论不同模型下的下行波束设计方法 ,并对圆天线阵列和直线天线阵列进行计算机仿真 .仿真结果表明 ,圆天线阵较适合开关多波束设计 ,直线天线阵可用于下行选择性多波束设计 .如果直线阵采用 Chebyshev天线阵激励作为加权值幅度 ,则可实现下行波束优化设计 ,并使系统复杂度降低 .更多还原

【Abstract】 Downlink beamforming for modile communication systems based on antenna arrays have been discussed. Computer simulations for circular array and linear array have also been carried out. The results of simulations show that circular array or linear array can be used in different downlink beamforming model, which means that circular array is suitable for switch-beam downlink beamforming, while linear array for selective downlink beamforming. If Chebyshev linear array in selective downlink beamforming model is adopt, the beamforming will be optimized. In addition, the complexity of system will be reduced greatly, which makes beamforming easier to be realized.更多还原