The utility model discloses a high-frequency multilayer
printed circuit board based on 5G communication, and particularly relates to the technical field of circuit boards, and the PCB can effectively reduce the mutual interference between signals through the
shielding effect of a
ground plane layer and a power
plane layer, supports the high-speed
data transmission and stable
signal quality, and improves the reliability of the circuit board. The arrangement of the reinforcing layer can improve the structural strength of the circuit board and reduce the influence of vibration and mechanical stress on the circuit board, the design of the multi-layer
printed circuit board can provide more wiring space, the function is powerful, the circuit board is suitable for a complex circuit
system, the aluminum plate in the reinforcing layer provides
mechanical strength and an
electromagnetic shielding function, and the service life of the circuit board is prolonged. The
glass fiber cloth provides insulation performance and durability, the
epoxy resin plays a role in bonding and fixing, the structural strength, stability and durability of the circuit board are jointly improved, the deposited
metal tin, the
adhesive and the
polyurethane coating in the
corrosion-resistant layer jointly provide comprehensive
corrosion-resistant protection, and the service life of the circuit board is prolonged. And the reliability and the service life of the PCB in a severe environment are remarkably improved.