| 防护布线的结构对PCB板级差分对之间串扰的影响 |
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| 引用本文： | 侯莹莹,关丹丹. 防护布线的结构对PCB板级差分对之间串扰的影响[J]. 电子质量, 2009, 0(3): 82-84 |
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| 作者姓名： | 侯莹莹 关丹丹 |
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| 作者单位： | 西安电子科技大学机电工程学院,陕西西安,710071 |
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| 摘 要： | 差分传输线具有低辐射和抑制共模噪声的优势，得到了越来越广泛的应用。但是传统的差分线结构不能有效的降低邻近差分对之间的串扰噪声，这将影响到高速系统的信号完整性。文中针对使用防护布线的方法，讨论了三种不同结构的防护砸线，从场的角度对比了它们的电磁屏蔽效果，利用混模S参数分析了它们对于减小串扰噪声的作用。
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| 关 键 词： | 差分传输线 防护布线 串扰 信号完整性 混模S参数 |
The Impact of Different Structures of Guard Trace on PCB-level Differential Line Pairs Crosstalk |
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| Hou Ying-ying,Guan Dan-dan. The Impact of Different Structures of Guard Trace on PCB-level Differential Line Pairs Crosstalk[J]. Electronics Quality, 2009, 0(3): 82-84 |
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| Authors: | Hou Ying-ying Guan Dan-dan |
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| Affiliation: | Mechanical-electronic Engineering Institute of Xidian University;Shanxi xi'an 710071 |
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| Abstract: | Differential transmission lines are more and more widely used for layout because of their enhanced lowradiation emission and high commonmode noise immunity. However, conventional differential line structures still suffers from crosstalk between neighboring differential pairs, thus affecting the signal integrity of high speed system. Aim at using guard trace, there are three kinds of guard trace structure which are discussed in this paper. Their impacts of electromagnetic shield are compared respectively, an... |
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| Keywords: | differential transmission line guard trace high frequency crosstalk signal integrity mix-mode S-parameters |
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