针对相控阵雷达带宽的扩展，文章提出了一种基于多路啁啾微波脉冲（CMP）信号产生及延时控制的新型波束成形系统。该系统由多个平行的具有二阶相位特性的微波光子滤波器（MPF）构成，且MPF均通过非均匀抽头延时重构获得。通过将超宽带信号输入该多路MPF系统，即可产生多路CMP信号并输入各个阵列天线阵子，借助于光纤色散，通过调谐MPF重构所需要的光载波波长即可实现脉冲信号的延时控制，从而实现信号的波束成形。仿真结果表明，该系统可以产生多路CMP信号，且信号延时量可以得到控制，并实现了波束指向的控制。该研究成果有助于推动相控阵雷达带宽的进一步扩展。

In order to improve the bandwidth of the modern phased array radar, a novel beamforming system based on paralleled Chirped Microwave Pulse (CMP) generators is proposed in this paper. In each path, a Microwave Photonic Filters (MPF) with a quadratic phase response is configured, which are equivalently realized by using nonuniformly spaced taps. The CMPs can be generated by applying an Ultra-Wideband signal to the paralleled MPFs. By tuning the wavelengths of optical carriers in the paths, the group delays of the signals can be tuned depend on the fiber dispersion, realizing squint-free beamforming for the CMP. As the parameters of the MPFs and CMP signals can be variable, the system is quite flexible. By numerical simulation, the feasibility of beamforming and direction steering of the beamforming system are verified. Besides, the research results will contribute to the development of modern phased array radars.