FR4介电不均匀性对多gb /s差分信号性能的影响

Electrical Performance of Electrical Packaging (IEEE Cat. No. 03TH8710) Pub Date : 2003-12-08 DOI:10.1109/EPEP.2003.1250041

H. Heck, S. Hall, B. Horine, K. Mallory, T. Wig

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引用次数: 18

摘要

提出了由介电常数局部空间变化引起的高速差分信号的相位偏斜。开发了一个简单的数学模型，可以估计对多gb /s信号链路的影响，以及与频域测量相关的HSpice模型。还讨论了减轻影响的各种办法。

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Impact of FR4 dielectric non-uniformity on the performance of multi-Gb/s differential signals

Phase skew in high speed differential signals caused by local spatial variation in dielectric constant is presented. A simple mathematical model that allows estimation of the impact on multi-Gb/s signaling links is developed, along with HSpice models that correlate to frequency domain measurements. Options for mitigating the impacts are also discussed.

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Electrical Performance of Electrical Packaging (IEEE Cat. No. 03TH8710)

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