High speed PCB signal integrity design and implementation based on multi-objective optimization
基于多目标优化的高速PCB信号完整性设计与实现

摘要

高速电路系统中，信号完整性直接影响数据传输的稳定性与电磁兼容性能。为应对走线延时、串扰和阻抗不匹配等复杂问题，引入多目标优化方法对PCB设计进行系统化建模与求解。通过建立涵盖时延、反射系数及串扰抑制的综合评价指标，并结合智能优化算法搜索设计空间，实现设计变量的全局优化配置。该方法有效平衡了信号质量与布线复杂度，在提升高速信号传输可靠性的同时降低了设计迭代成本，为高性能电路系统提供了高效的设计途径。

Abstract

In high-speed circuit systems, signal integrity directly impacts data transmission stability and electromagnetic compatibility. To address complex issues such as trace delays, crosstalk, and impedance mismatch, this study introduces a multi-objective optimization method for systematic modeling and solving in PCB design. By establishing comprehensive evaluation metrics that encompass delay, reflection coefficient, and crosstalk suppression, combined with intelligent optimization algorithms to explore design spaces, the method achieves global optimization of design variables. This approach effectively balances signal quality with routing complexity, enhancing high-speed signal transmission reliability while reducing design iteration costs. It provides an efficient design pathway for high-performance circuit systems.