电子设备、装置及通信设备必须符合电磁兼容性标准。而且电磁兼容性的挑战随着运行速度的提高而变更加激烈。在设计时从两方面着手:一是减少电路所产生的电磁干扰,二是屏蔽。机壳起屏蔽的作用,但是,机壳无法避免地存在缝隙,电子产品本身产生的电磁干扰便会从这些缝隙辐 Electronic equipment, devices and communications equipment must comply with electromagnetic compatibility standards. And the challenges of electromagnetic compatibility have become more intense as the speed of operation has increased. At the time of designing, we started from two aspects: one is to reduce the electromagnetic interference generated by the circuit, and the other is to shield. The housing acts as a shield, however, the housing inevitably has a gap, and the electromagnetic interference generated by the electronic product itself will come from these spokes.