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.