摘要
针对机载相控阵雷达天线受机头圆柱形设备舱约束的条件,研究了矩形栅格圆口径平面相控阵天线的方向图,建立数学模型并对其进行了公式推导和计算机仿真。同时将该天线与同等规模的矩形口径平面阵天线方向图特性进行了对比分析,结果表明:前者通过展宽主波束宽度和抬高旁瓣间交叉电平深度获得了优于后者的抗干扰性能的结论。
Considering the limit of the space of the cylindrical equipment cabin to the airborne phased array radar antenna, we studied the directional patterns of the rectangular grid circular planar array antennas. We also built up mathematic models, deduced the formulas and carried out simulations. The directional pattern performance of the circular planar array was compared with that of the rectangular planar array of the same scale, and the conclusion is： the former has better anti-interference performance than the latter through broadening the main beam-width and heightening the side lobe cross electrical level.
出处
《电光与控制》
北大核心
2008年第4期85-88,共4页
Electronics Optics & Control
关键词
相控阵
雷达
圆口径平面阵
方向图
phased array
radar
circular planar array
directional pattern
