摘要
分析了相控阵天线中相位误差来源;以线阵为例,详细讨论了网络相差对天线波束指向和副瓣电平的影响;提出了一种基于正弦曲线拟合的相位校准方法。通过仿真证明该方法能够克服网络相差的影响,提高天线波束指向精度,抑制寄生副瓣。
The phase error sources of phased array antennas were analyzed in this paper. As an example of phased array antennas, influences of the network＇s phase error on the line array antenna＇s beam pointing and the level of sidelobe were particularly discussed. Grounded on the analysis, a phase calibration method based on sinusoidal curve fitting was given. Simulation shows that the phase calibration method can minimize phase error of the network while improve antenna＇s beam pointing and restrain parasitic sidelobe.
出处
《弹箭与制导学报》
CSCD
北大核心
2008年第2期303-306,共4页
Journal of Projectiles,Rockets,Missiles and Guidance
基金
军队专项科研基金资助
关键词
相控阵天线
网络相差
相位校准
曲线拟合
phased array antenna
phase error of the network
phase calibration
curve fitting
