Mitigation of Noise Coupling in Multilayer High-Speed PCB: State of the Art Modeling Methodology and EBG Technology

Abstract

SUMMARYNoise coupling on the power distribution networks (PDN) or between PDN and signal traces is becoming one of the main challenges in designing above GHz high-speed digital circuits. Developing an efficient and accurate modeling method is essential to understand the noise coupling mechanism and then solve the problem afterwards. In addition, development of new noise mitigation technology is also important for future high-speed circuit systems. In this invited paper, a novel modeling methodology that is based on the physics-based equivalent circuit model will be introduced, and an example of multiple layer PCB circuits will be modeled and validated with good accuracy. Based on the periodic structure concept, several new electromagnetic bandgap structures (EBG), such as coplanar EBG, photonic crystal power layer (PCPL), and ground surface perturbation lattice (GSPL), will be introduced for the mitigation of power/ground noise. The trade/offs of all these structures will be discussed.

Power Integrity Analysis of Power Distribution Network Segmented Using DGS–Electromagnetic Bandgap Structure in Mixed-Signal PCBs

“…As a solution to the noise problem, PDNs employing a segmentation technique have been extensively studied [6][7][8][9][10][11][12][13]. In particular, the PDN segmented by the electromagnetic bandgap (EBG) structure with a defected ground structure (DGS) is considered a promising technique for power/ground noise suppression [14][15][16][17][18][19][20][21][22][23]. Figure 1 illustrates the PDN employing DGS-EBG segmentation.…”

Multi-stack Technique for a Compact and Wideband EBG Structure in High-Speed Multilayer Printed Circuit Boards

“…Furthermore, continuous increases in the clock frequency and data rates for high-speed digital systems significantly widen the spectra of power/ground noise so that it spans a frequency range of several GHz. The wideband power/ground noise severely deteriorates the system performance by reducing the noise margin and degrading the RF sensitivity [3]- [5]. Therefore, it is imperative to suppress the power/ground noise over a wideband frequency range in…”

A Hierarchical Tree Shaped Power Distribution Network Based on Constructal Theory for Ebg Structure Power Plane

“…SSN is recognized as one of the most significant issues in modern high speed digital systems design. Recently, various planar electromagnetic band-gap (EBG) structures have been proposed and applied in power/ground plane pairs to mitigate SSN [2][3][4][5][6][7][8][9][10][11][12]. They consist of two metallic layers of the multilayer PCB, one of which is solid (ground plane) and the other a patterned one (power plane).…”

“…[3]. Many researchers have analyzed the electromagnetic behavior of planar EBG structures when designed on a PCB [2][3][4][5]. Paper [2] gives a simple and efficient design procedure for planar EBG structures which is sized from the band-gap starting and ending frequencies.…”

“…Paper [2] gives a simple and efficient design procedure for planar EBG structures which is sized from the band-gap starting and ending frequencies. [4] introduces the art modeling methodology of EBG structure based on physics-based equivalent circuit model. The researches show that the patches and bridges form equivalent inductor and capacitor (LC) networks.…”