一种设计方便可实现加权及近场聚焦的电阻相移波束形成器

A New Method for Designing Resistance Phaseshift Beamformer

基于对窄带波束形成器原理的分析 ,提出了一种新的电阻相移波束形成器的设计 ,该方法不需计算匹配电阻和特征电阻 ,且将相移、幅度加权及远场聚焦—并考虑 ,从而使设计十分方便 .作者从工程应用出发 ,分析了电阻值误差对波束形成的影响 .文中给出了部分仿真结果和实验结果 .

Based on analyzing the principle of beamforming ,a new method for designing resistance phaseshift beamformer was suggested.In the suggested method,the matching and characteristic resistance do not have to be calculated,and the phaseshifting,amplitude shading together with focusing for near_field are considered,so that the circuit designing is very convenient.From the point of view of engineering application,the influences of resistance errors on beamforming were also discussed.Some simulation results and experimental results were given as well.