本研究探討了電磁帶隙（ EBG）結構在多層印刷電路板 PCB）中的應用，特別是 在抑制同步開關雜訊（ SSN）和信號完整性 SI）的維護進行探討。研究提出一種創新 的 EBG設計架構，結合週期性槽線與貫孔 (via)週期性的方式排列，達到寬頻且高效率的 雜訊抑制效果。本研究設計 EBG結構可有效地將抑制頻帶拓展至 0.14GHz至 50GHz之廣 泛範圍。另外此設計不僅能夠有效衰減 SSN等高頻雜訊，還能在寬頻範圍內穩定地提供 共模信號的抑制。在不影響差分模式信號傳輸的情況下，能夠有效地抑制共模信號，保 持信號完整性。因為 EBG結構主要影響的是共模信號，而差分信號則能夠在此結構中正 常傳播，保持其質量。本研究成功實現了對 SSN有效濾除，並且能在廣泛的頻率範圍內 保持信號的清晰度與準確性。

This paper investigates the electromagnetic bandgap (EBG) structures in multilayer printed circuit board (PCB). The suppression of simultaneous switching noise (SSN) and the maintenance of signal integrity (SI) are further addressed. A novel EBG design incorporating complementary periodic slot line and via arranged periodically is developed to achieve wideband and high-efficiency common-mode noise suppression. The EBG structure with the noise suppression bandwidth from 0.14 GHz to 50 GHz is proposed and simulated. Furthermore, this design not only effectively attenuates high-frequency noise such as SSN but also provides stable common-mode noise suppression across a wide frequency spectrum. Importantly, the structure suppresses common-mode signals without adversely affecting the transmission of differential-mode signals, thus preserving overall signal integrity. Consequently, this research successfully efficiently filters SSN and other high-frequency noise sources, maintaining signal clarity and accuracy across a broad frequency range.