阵列天线通道误差对波束性能的影响分析

Analysis on Impact of Phased Array Antenna Channel Errors on Beam Forming

针对阵列天线通道间的误差影响波束性能的问题,分析了通道间误差的来源,并通过波束形成原理说明了通道间误差如何对波束性能造成影响。给出了幅度误差和相位误差多种组合场景作用下波束方向图的仿真结果,并分析了通道误差对波束宽度、旁瓣电平和增益等主要指标的影响。给出了波束形成过程中对通道误差控制范围的建议。

Aiming at the impact of phase array antenna channel errors on beam-forming,the error source is analyzed,and how the channel errors impacts the beam performance is explained based on beam forming principle.The Simulation results of beam patterns in multiple scenes of amplitude errors and phase errors combination are given and the impact of channel errors on main specifications such as beam width,sidelobe level,gain,etc.is analyzed.At last,the channel errors margin during beam forming is given.