高速PCB设计中的若干误区与对策

Misunderstanding and Countermeasures in High-speed PCB Design

理论研究和实践都表明,对高速电子系统而言,成功的PCB设计是解决系统EMC问题的重要措施之一.为了满足EMC标准的要求,高速PCB设计正面临新的挑战.在高速PCB设计中,设计者需要纠正或放弃一些传统PCB设计思想与做法.从应用的角度出发,结合近年来高速PCB设计技术的一些研究成果,探讨了目前高速PCB设计中的若干误区与对策.

It＇s shown by theoretical studies and practices that reasonable PCB design is one of the key techniques for solving the EMC （electro-magnetic compatibility） problems of high-speed electronic systems. High-speed PCB designers are facing challenges while designing electronic systems to meet the international EMC regulatory requirements. In order to improve high-speed PCB design, the designers should correct or abandon some conventional PCB design ideas and practice. From the point of practical use, several misunderstandings and relevant countermeasures about high-speed PCB design are discussed Considering some new achievements of the techniques for it.