As 5g communication adds more and more frequency bands to the antenna, the antenna design becomes more and more complex. Because of the power increase, engineers hope to put the active circuit into the antenna system to form an active antenna system, which requires more components to be placed in a limited space. In this case, multi-layer PCB began to replace the past cable to meet the needs of complex antenna design. 5g antenna tends to be smaller, thinner and more complex, so it requires higher precision and more intelligence for the process equipment. The laser engraving machine provided by our company can fully meet the requirements of 5g direction