摘要
平面阵列扫描空域基本求解方法不考虑波束宽度的影响,扩大了实际扫描范围,不利于阵列设计和对目标信号的快速捕捉。针对这一弊端,在基本扫描空域求解方法的基础上引入阵列波束宽度约束。通过坐标变换、平移和三角形几何分析得到水平放置的矩形栅格平面相控阵的扫描空域求解方法和公式。实验仿真结果表明,该方法缩小了平面阵列无用扫描空域范围,便于对阵列工作空间的准确定位,对平面阵列天线的实际工程应用提供了较高的参考价值。
The basic planar-array airspace scanning method does not consider the beam-width,enlarges the actual scanning range,and is not conducive to array design and rapid capture of the signal.To eliminate the shortcoming,a novel method is proposed based on the basic scanning method with the array beam-width constraints. The maximum array scanning angle function of the rectangular grid of conical scanning planar phased array is obtained through coordinate transformation,translation,and triangular geometric analysis. Simulation results show that the method reduces the useless scanning space,helps to find array work space,and provides some reference value for planar phased array antenna engineering implementations.
出处
《信息工程大学学报》
2014年第5期564-569,共6页
Journal of Information Engineering University
基金
国家自然科学基金资助项目(61271253)
国家863计划资助项目(2013AA013603)
