超宽带抑制同步开关噪声的新型电磁带隙结构

J4 ›› 2011, Vol. 29 ›› Issue (5): 419-423.

超宽带抑制同步开关噪声的新型电磁带隙结构

郭雁林, 路宏敏, 李明儒, 王震, 许悦, 王向荣

西安电子科技大学电子工程学院,西安 710071

出版日期:2011-09-24 发布日期:2011-11-29
作者简介:郭雁林（1985—）|男|山西代县人|西安电子科技大学硕士研究生|主要从事基于信号完整性的新型电磁带隙结构研究|(Tel)86-13772045664(E-mail)guoyanlinyan@126.com；路宏敏（1961—）|男|西安人|西安电子科技大学教授|硕士生导师|主要从事电磁兼容、微波技术与天线、信号完整性分析研究|(Tel)86-13619226992(E-mail)hmlu@mail.xidian.edu.cn

New Electromagnetic Bandgap Structure for Ultra-Wideband Suppression of Simultaneous Switching Noise

School of Electronic Engineering, Xidian University, Xi'an 710071, China

Online:2011-09-24 Published:2011-11-29

摘要/Abstract

摘要：

为抑制现代高速电路中的同步开关噪声，给出了一种新型电磁带隙结构，可超宽带抑制同步开关噪声。利用软件对新型电磁带隙结构的阻带特性及信号完整性进行仿真分析。结果表明，与相同参数的Z型桥电磁带隙结构相比，当抑制深度为－30 dB时，新型电磁带隙结构的同步开关噪声抑制带宽为130 MHz~10.45 GHz，相对带宽增加了58.8%，阻带下限截止频率降低了130 MHz；同时使用差分线对传输信号时，新型电磁带隙结构电源平面较好地保持了信号的完整性。

关键词: 同步开关噪声, 电磁带隙, 信号完整性

Abstract:

A new EBG（Electromagnetic Band Gap) structure is proposed for ultrawideband suppression of SSN（Simultaneous Switching Noise). The characteristics of the stopband and signal integrity are simulated by software. The results indicate that the suppression bandwidth of －30 dB from 130 MHz to 10.45 GHz is realized by using the proposed EBG structure. Compared to the Z-bridged EBG structure with the same parameters, the relative bandwidth is increased by 58.8% and the lower cut-off frequency is decreased by 130 MHz. The signal integrity of the proposed EBG power plane can be improved by using differential transmission lines.

Key words: simultaneous switching noise (SSN), electromagnetic band gap (EBG), signal integrity

中图分类号:

TN41

郭雁林, 路宏敏, 李明儒, 王震, 许悦, 王向荣. 超宽带抑制同步开关噪声的新型电磁带隙结构[J]. J4, 2011, 29(5): 419-423.

GUO Yan-Lin, LU Hong-Min, LI Meng-Ru, WANG Shen, HU Yue, WANG Xiang-Rong. New Electromagnetic Bandgap Structure for Ultra-Wideband Suppression of Simultaneous Switching Noise[J]. J4, 2011, 29(5): 419-423.