非均匀介质中平行板模对带状线的影响

2020 IEEE International Symposium on Electromagnetic Compatibility & Signal/Power Integrity (EMCSI) Pub Date : 2020-07-01 DOI:10.1109/EMCSI38923.2020.9191661

Jiayi He, Shaohui Yong, Z. Kiguradze, A. Chada, B. Mutnury, J. Drewniak

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引用次数: 0

摘要

带状线广泛应用于高速印刷电路板(PCB)。当带状线处于非均匀介质中时，其工作模式为准瞬变电磁法。在这种情况下，两个接地面之间的平行板模式可以作为寄生模式被激发。本文通过仿真研究了这种寄生模式对带状线的影响。比较了该平行板模式被激发和抑制时带状线的模拟s参数。并对有无地面拼接过孔的带状线进行了s参数测量比较。同时给出了寄生模式对时域串扰和眼图的影响。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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The Effect of the Parallel-Plate Mode on Striplines in Inhomogeneous Dielectric Media

Striplines are widely used in high speed printed circuit boards (PCB). When the stripline is in inhomogeneous dielectric media, its principle operation mode is quasi-TEM. In this case, the parallel-plate mode between two ground planes can be excited as a parasitic mode. This paper investigates the effect of this parasitic mode on striplines through simulations. The simulated S-parameters of striplines when this parallel-plate mode is excited and suppressed are compared. The measured S-parameters of striplines with and without the ground stitching vias are also compared. The impact of the parasitic mode on time domain crosstalk and eye diagram is also shown.

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2020 IEEE International Symposium on Electromagnetic Compatibility & Signal/Power Integrity (EMCSI)

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