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標題: | 利用多連通柱接地平面擾動晶格抑制同步切換雜訊之研究 Using Multiple Via Ground Surface Perturbation Lattice for Suppression of Simultaneous Switching Noise |
作者: | Yi-Min Yu 游逸民 |
指導教授: | 邱奕鵬(Yih-Peng Chiou) |
關鍵字: | 電源完整性,電磁能隙結構,多連通柱接地平面擾動晶格,同步切換雜訊,接地彈跳雜訊, power integrity,electromagnetic bandgap,multiple via ground surface perturbation lattice,simultaneous switching noise,ground bounce noise, |
出版年 : | 2010 |
學位: | 碩士 |
摘要: | 有別於傳統式高阻抗平面電磁能隙結構是由一方型金屬板與單根連通柱接地而構成,多連通柱接地平面擾動晶格(multiple via ground surface perturbation lattice, MV-GSPL)與傳統式結構一樣均由週期性排列金屬板組成,但改為多根連通柱同時接地。此種電磁能隙結構可以提供較傳統式結構更寬頻的濾波效果來抑制同步切換雜訊在電源封裝系統中之傳遞。然而,本文除了說明MV-GSPL可以提供更寬的截止頻帶之外,更著重於藉由改變連通柱中心至金屬板邊之距離來探討截止頻帶的變化情形,並發現當連通柱擺放在最佳化的位置上時,會表現出最高的截止頻帶上緣與較好的比例頻寬,並依據本文的討論結果可以快速地尋找出這些最佳化的擺放位置。另外除了討論文獻上大多採用的方型金屬板結構外,本文亦加入圓型金屬板結構進行研究,更提出合理的解釋來說明當連通柱在某些位置上時,圓型金屬板結構在截止頻帶與比例頻寬的表現上會較方型金屬板來得佳。另外一個一維的等效電路模型也被提出,此模型可以用來快速預測截止頻帶的範圍,此等效電路的準確性也由實驗與模擬的結果進行驗證。 A multiple via ground surface perturbation lattice (MV-GSPL) is proposed to suppress the simultaneous switching noise (SSN) in the power distribution network (PDN). The MV-GSPL is formed by periodically embedded metal patches shorting to the ground plane with multiple via into the power/ground plane, and the stopband of MV-GSPL structure is much wider than the traditional mushroom type EBG. There are two types of MV-GSPL are discussed, including the square and circular patches. The thesis focuses on changing the distance between the center of via from the patch edge to enhance the stopband of MV-GSPL. According to the conclusion of this thesis, we can swiftly find the optimized via position of the MV-GSPL with the highest upper sideband frequency and best fractional bandwidth. An efficient 1-D equivalent circuit is also proposed to predict the stopband efficiently. The MV-GSPL structures are also fabricated on three layer FR4 printed circuit board (PCB) to demonstrate the good isolation performance and the measurement results are consistent with the simulation data. |
URI: | http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/44704 |
全文授權: | 有償授權 |
顯示於系所單位: | 光電工程學研究所 |
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