摘要
论文给出了三角形栅格平面阵的模型,计算研究了矩形栅格和三角形栅格的方向图以及波束指向。计算结果表明使用三角形栅格时能有效减少阵元数量,但是使用三角形栅格时随机幅相误差对波束指向的影响要大于使用矩形栅格。文章还计算分析了波束指向误差与波束指向角的关系,波束指向与天线阵面法线的夹角越大,随机幅相误差造成的波束指向误差也越大。
The model of triangle-grid planar array is presented, and the pattern and beam pointing of rectangular-grid and triangle-grid is studied by calculating. The calculated results show that using triangle-grid can reduce num-bers of array elements effectively; however effect of random amplitude-phase error of using triangle-grid on beam pointing is higher than that of using rectangular-grid. The relation between beam pointing error and beam pointing angle is analyzed by calculating. The wider the angle included between beam pointing and normal of antenna array surface is, the larger error of beam pointing caused by random amplitude-phase error is.
出处
《火控雷达技术》
2015年第2期87-89,100,共4页
Fire Control Radar Technology
