The utility model discloses a barrier gate
radar PCB board with a laminated structure, comprising a first PCB board, a second PCB board and a
welding assembly, the first PCB board and the second PCB board are connected through the
welding assembly; the first PCB comprises a layer of RO4830 high-speed board and three
layers of FR4 common boards; and the same
signal lines of all
layers of plates are connected through plated-through holes. The second PCB comprises two
layers of FR4 common plates, and the same
signal lines of all the layers of plates are connected through plated-through holes. The
welding assembly comprises a metalized stamp hole and a
metal bonding pad, the metalized stamp hole is arranged on the first PCB, and the
metal bonding pad is arranged on the second PCB. The first PCB is provided with a main
control unit, a storage unit, a
clock unit and an antenna. According to the utility model, the
usable area of special high-frequency plates can be effectively reduced, and the production cost is reduced.