Application of VSI-EBG Structure to High-Speed Differential Signals for Wideband Suppression of Common-Mode Noise

被引：9
|
作者：
Kim, Myunghoi [1 ]
Kim, Sukjin [2 ]
Bae, Bumhee [2 ]
Cho, Jonghyun [2 ]
Kim, Joungho [3 ]
Kim, Jaehoon [1 ]
Ahn, Do Seob [1 ]
机构：
[1] ETRI, Broadcasting & Telecommun Media Res Lab, Taejon, South Korea
[2] Korea Adv Inst Sci & Technol, Taejon 305701, South Korea
[3] Korea Adv Inst Sci & Technol, Dept Elect Engn, Taejon 305701, South Korea
来源：
ETRI JOURNAL | 2013年 / 35卷 / 05期
关键词：
Common-mode noise; differential signal; electromagnetic bandgap; EBG; stepped impedance; VSI-EBG; SIMULTANEOUS SWITCHING NOISE; REDUCTION; CIRCUITS; DESIGN; FILTER; PCBS;
D O I：
10.4218/etrij.13.0112.0875
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
In this paper, we present vvideband common-mode (CM) noise suppression using a vertical stepped impedance electromagnetic bandgap (VSI-EBG) structure for high-speed differential signals in multilayer printed circuit boards. This technique is an original design that enables us to apply the VSI-EBG structure to differential signals without sacrificing the differential characteristics. In addition, the analytical dispersion equations for the bandgap prediction of the CM propagation in the VSI-EBG structure are extracted, and the closed-form expressions for the bandgap cutoff frequencies are derived. Based on the dispersion equations, the effects of the impedance ratio, the EBG patch length, and via inductances on the bandgap of the VSI-EBG structure for differential signals are thoroughly examined. The proposed dispersion equations are verified through agreement with the full-wave simulation results. It is experimentally demonstrated that the proposed VSI-EBG structure for differential signaling suppresses the CM noise in the wideband frequency range without degrading the differential characteristics.
引用
收藏
页码：827 / 837
页数：11
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