The invention provides a
millimeter wave regular modular sparse active phased-array antenna which comprises a comprehensive mother board which is provided with a
radio frequency power synthesis / distribution network, a component
control network and a component power
supply network. The plurality of sparse antenna modules are arranged above the comprehensive mother board; the
chip assembly is arranged below the comprehensive mother board; the digital and
power supply unit is arranged on the side, away from the comprehensive mother board, of the
chip assembly and comprises a
phased array wave control module and a power supply module, and the
phased array wave control module is connected with the
system master control and
assembly control network; the power supply module is connected with a
system power supply and a power
supply network; the sparse antenna module and the comprehensive mother board are vertically stacked, and vertical
interconnection is realized through a plurality of
layers of PCBs; the integrated mother board is vertically connected with the digital and
power supply unit through a plug-in low-frequency connector. According to the invention, decoupling of the
integrated antenna can be realized; the sparse antenna module adopts sparse active feed, so that the number of array active channels and the
heat flux density can be effectively reduced, and the
system cost is effectively reduced.