极化对射频仿真系统阵列控制的影响

射频仿真暗室天线阵列的精度控制通常采用20世纪70年代美国波音公司提出的幅度重心公式,该表达式忽略了天线阵面弧度对三元组喇叭极化方式的影响,以及三元组天线单元间距对控制精度的影响,因此存在控制误差。该文充分考虑上述2个因素对等效目标回波方位的影响,对原三元组天线阵控制方案作了改进。由于新的控制方案充分考虑了极化、单元间距等因素对雷达目标角闪烁的影响,因此控制精度较原先有显著提高。

Effects of Polarization on the Triad of Antenna Array

Control theory of antenna array uses the range-barycenter formular which US Boing put forward in 1970s in radio frequency simulation.This method neglects the change of polarization that the array surface curvature causes and the spacing between the antenna elements,so big errors are made.This paper considers the effect of polarization on the triad of antenna array and element spacing,and puts forward a new method to control the array.In this way,the precision of control is enhanced because of considering the polarzation and element spacing.