使用電磁能隙結構抑制高速數位載板 之電源雜訊

Power Noise Suppression of High Speed Digital Load Board Using Electromagnetic Bandgap Structure

鄭文賢(Wen-Hsien Cheng)

指導教授 ： 薛光華

中原大學/工學院/電子工程研究所/碩士(2015年)

https://doi.org/10.6840/CYCU.2015.00127

摘要

在此論文，我們提出以內埋電磁能隙(Electromagnetic BandGap, EBG)結構來抑制電磁干擾(Electromagnetic Interference, EMI)，在近代的混合訊號系統設計(Mixed-Signal System)中，常常必須把靈敏的類比電路與數位電路整合在一起。但是，數位電路的開關雜訊會透過電源及接地層傳播並對類比電路產生影響。因此，要如何阻隔電路彼此之間的干擾也就變得重要。而在雜訊的傳播抑制上，電磁能隙的電源和接地層設計是一個不錯的選擇方案。
為了驗證在本文中所提到的電磁能隙結構，我們利用模擬與量測去做特性驗證，而根據模擬與量測的結果，我們證明了本文中所提出的電磁能隙結構可有效地針對所需的頻帶雜訊做抑制。

關鍵字

載板 ； 電磁能隙 ； 接地彈跳雜訊 ； 電磁干擾 ； 電源分佈網路

並列摘要

In this paper, a new design technique of EMI suppression for an embedded electromagnetic bandgap (EBG) structure is presented. In modern mixed-signal system design, it may be required to integrate noise sensitive analog circuits next to digital circuits. Unfortunately the digital switching noise will be propagated through power/ground planes and affect analog circuit performance. For this reason, it is important to block this effect. To prevent the noise propagation, an EBG-patterned power/ground plane can be an acceptable solution.
The proposed solution has been demonstrated by both simulation and measurement. Simulation and measurement results demonstrate that the proposed EBG structure can be effective for the desired noise suppression.

並列關鍵字

Load Board ； EBG ； EMI ； GBN ； PDN

參考文獻

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