宽带相控阵天线在瞬时宽带工作模式下,天线方向图的波束指向将不可避免地出现色散现象,可在天线单元或子阵级采用延时器以改善色散问题。针对延时器、移相器控制码的计算方法,文中在延时剩余法的基础上,提出了中频随动法和自适应最小步长两种新算法。两种算法不仅具有更好的适应性,而且能够改善天线宽带方向图性能。 Broadband phased array antenna Under the instantaneous broadband working mode, the beam direction of the antenna pattern will inevitably disperse, and the delay may be adopted at the antenna element or the sub-array to improve the dispersion problem. Aiming at the calculation method of delay coder and phase shifter control code, two new algorithms of intermediate follow-up and adaptive minimum step are proposed on the basis of delayed residual method. Both algorithms not only have better adaptability, but also improve the performance of antenna broadband pattern.