“…Since the speed of the chip is also growing, the transmission lines on the high-speed circuit network become transmitting antennas, which generate electromagnetic radiation, causing electromagnetic interference (EMI) problems in the VNS. Except for the dense wire layout, the EMI of the VNS is also affected by other factors, such as the location of components on the PCB, vias, traces, shielded enclosure of VNS and internal cavity structure of enclosure [1][2][3][4][5][6]. If the EMI is too high, it will affect the normal operation of other vehicle electronic systems such as navigation, decreasing the safety and reliability of automobile driving.…”