摘要
文中介绍了一种新型的阵列构型-梯形阵,该构型能够明显地压制相控阵天线二维扫描时伴随发生的栅瓣,进而能够实现有限的二维扫描。物理原理是通过阵列的错位引入额外的阵列因子,使得其在UV空间的栅瓣发生劈裂,进而使得栅瓣能量下降。该构型只是在传统矩形阵的基础上进行了错位,因此,较易实现模块化生产与测试,具有很强的工程可实现性。
A new array structure, which is called ladder array, is presented in this paper. This structure obviously reduces the grating lobes of limited 2D scanning phased array because the array factor caused by the stagger structure splits the UV space. The new structure is realized by the interleaving of the ordinary array. So the advantage is the convenience of design, fabrication and beam control, which means the realizability of engineering.
出处
《现代雷达》
CSCD
北大核心
2014年第7期51-53,共3页
Modern Radar
关键词
相控阵
有限扫描
梯形阵
phased array
limited scanning
ladder array
