結合部份電磁能隙及Z形電源通道結構藉以隔離多層板之雜訊

Combine Partial EBG Structure and Z-shaped power bus for Noise Isolation in Multi-layer PCBs

江瑞文(JUI-WEN CHIANG)

指導教授 ： 林丁丙

國立臺北科技大學/機電學院/電腦與通訊研究所/碩士(2014年)

https://doi.org/10.6841/NTUT.2014.00398

摘要

本論文主要研究在高整合、高複雜度的電路設計中，因電流快速切換而產生的接地彈跳雜訊(GBN)。此雜訊會在電源/接地平面傳播且會耦合至上下層鄰近的電源/接地平面，使電路的電源完整性(Power integrity, PI)受到影響。在本文中，主要是利用區段法觀念將矩形平行板分段切割開來，嵌入部份電磁能隙(Partial EBG)結構及Z形電源通道(Z-shape power bus)，藉其將電源/接地平面的雜訊隔離。當部份電磁能隙結構及Z形電源通道後被置入平行板後所形成的禁止帶(stop-band)特性已能達到週期性EBG結構一樣的雜訊隔離效果。
透過此建模方法能夠分離出部份EBG及Z形電源通道各自產生的禁止帶及通帶(pass-band)效應。在模型中，平行電路板被分為的5段和不同大小的矩形的電源/接地平面；分別為部份EBG結構透過垂直盲孔連接蘑菇形(Mushroom-like) EBG和矩形共振空腔模型以及由傳輸線路網絡模型描述Z形電源通道，並從模擬及實作結果中驗證從而提出改善方法，有效隔離電源雜訊。

關鍵字

電源的完整性 ； 接地彈跳雜訊 ； 部份電磁能隙 ； Z形電源通道 ； 蘑菇形 ； 共振空腔模型

並列摘要

This thesis discusses the ground bounce noise (GBN) in today’s high-integrative and high-complexity circuit designs. GBN not only transmits in its own power/ground plane, but also couples to neighboring power/ground plane. Moreover, in this paper, the main idea is to approximate the use segmentation method and cut off the cavity model of PCB, and with Partial EBG structure and a Z-shape power bus is fitted, whereby the noise power / ground planes isolated. After Partial EBG structure and Z-shape power bus be implantation, stop-band characteristics, noise isolation through the model to achieve some of the period EBG monomer same effect.
Through this modeling method capable of separating the stop-band and pass-band and Z-shape affect part of the EBG power generated by each bus. In the model, the PCB is divided into five segments of different sizes and of rectangular power / ground plane; EBG structures are connected as part of a vertical blind hole through the mushroom-shape (Mushroom-like) EBG and rectangular resonant cavity and the transmission line network model to describe the Z-shape power bus. And demonstrate and propose ways to improve and effectively isolated from the power / ground noise simulation and implement results.

並列關鍵字

Power/Ground Plane ； Ground Bounce Noise ； Partial EBG ； Z-shape power bus ； Mushroom-like ； Cavity model

參考文獻

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[22] 盧譔宇，應用粒子群聚最佳化法提昇不規則形狀電源分佈系統之功率完整性，碩士論文，國立台北科技大學電腦與通訊研究所，台北，2011。

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