摘要
揭示了平面相控阵天线宽带工作时,两维扫描波束指向漂移的规律。理论分析表明:在球坐标系下,φ方向不发生漂移,θ方向的漂移与直线相控阵天线一维扫描时相同。全空域立体扫描波瓣的仿真验证了上述结论。文章也给出了阵列单元或子阵设置数字延迟器后,扫描波束指向漂移改善的分析结果。
The law of 2D scanning beam - pointing drift wideband working plane phased array is revealed in this paper. The theoretical analysis shows that beam-pointing on φ direction has no drift, the drift on θ direction is equal to that of line phased array. This is proved by emulation of solid patterns for phased array. Final , improve of beam - pointing drift with digital delayer at elements or sub - arrays is given.
出处
《现代雷达》
CSCD
北大核心
2007年第11期86-88,共3页
Modern Radar
