摘要
在高速印刷电路板(PCB)设计中,逻辑门元器件速度的提高,使得PCB传输线效应成了电路正常工作的制约因素.对传输线做计算机仿真,可以找出影响信号传输性能的各种因素,优化信号的传输特性.采用全电荷格林函数法结合矩量法提取高速PCB传输线分布参数并建立等效时域网络模型,应用端接I/O缓冲器IB IS瞬态行为模型,对实际PCB布线进行电气特性仿真,其结果与Cadence公司的SPECCTRAQUEST软件仿真结果一致,且仿真效率得到提高.
With the rapid development in logic circuit, the effect of transmission line in PCB becomes a confined factor. In the design of high-speed PCB, the factors which affect the integrity of signal can be found by computerized simulation of the transmission line, simultaneously the signal quality could be optimized. The capacitance matrices of transmission line in high-speed PCB have been computed with this method that is the total charge Green＇ s functions with method of matrix, then the time-domain model is built. Connected to IBIS model of the I/O buffer these models can be used in computerized simulation of the transmission line. The result of simulation is equal with the result produced by EDA software-Specctraquest of cadence Co. and the efficiency of simulation is advanced.
出处
《重庆大学学报（自然科学版）》
EI
CAS
CSCD
北大核心
2005年第11期77-79,88,共4页
Journal of Chongqing University
