倾斜放置二维数字阵列雷达天线参数优化  

Geometric Parameter Optimization for Tilted-Back Planar 2D Digital Array Antenna

作　　者：邹永庆[1] 汪伟[1] 吴瑞荣[1] 

机构地区：[1]中国电子科技集团公司第三十八研究所,安徽合肥230031

出　　处：《雷达科学与技术》2008年第6期481-485,共5页Radar Science and Technology

摘　　要：介绍了二维相控阵或二维数字阵列天线锥形扫描与俯仰、方位扫描时的坐标变换,重点阐述了倾斜放置二维相控阵或二维数字阵列天线按俯仰、方位扫描时的坐标变换关系,基于该坐标变换,得出倾斜放置二维平面相控阵或二维平面数字阵列天线扫描区域边界在变换域上呈椭圆形的结论。基于这样的结论,可以实现对阵面倾斜角度、几何参数的优化。Two coordination transforms are introduced firstly for 2D phased array or digital array when the beam performs conical and elevation row-by-row scanning and azimuth sector scanning respectively. And another coordination transform relation is proposed for planar 2D phased array or digital array whose face is tilted back and beam performs row by-row scanning in elevation and sector scanning in azimuth. Based on the proposed transform, one quite distinct character is discovered that all the scan borderlines of planar 2D phased array or digital array are elliptic, and the array face tilt back angle and geometric parameters can be optimized easily by employing the ellipse equation.

关 键 词：二维数字阵列 扫描空域 阵面优化 坐标变换 

分 类 号：TN911.72[电子电信—通信与信息系统] TN821.8[电子电信—信息与通信工程]