摘要
通过对天线阵最优激励的理论推导,得到了短波对数周期相控阵天线的激励与波束指向之间的关系,利用Matlab语言编程计算了等幅激励下不同波束指向所需的激励相位,得到了8元阵列的方位和俯仰扫描方向图。所得结果表明,可以通过对激励的控制,实现阵列的宽角扫描能力,这对短波LPDA相控阵的设计具有一定的指导意义。
With the theoretical deduction on the optimized excitation of arrays, the relationship between the excitation and directions of beams of a short wave LPDA phased array is analyzed. Programming with the language of Matlab, the phase of excitations for variable directions of the beam and the scanning directional graph of the azimuth and elevation is obtained with the array equal scale excited. The results obtained prove that wide angle scanned arrays can be realized through controlling the excitations. And the results can be instructional on designing short wave phased LPDA arrays.
