A Novel HU-shaped Common-mode Filter for GHz Differential Signals

被引：0
|
作者：
Wu, Shu-Jung [1 ]
Chuang, Hao-Hsiang [1 ]
Wang, Ting-Kuang [1 ]
Wu, Tzong-Lin [1 ]
机构：
[1] Natl Taiwan Univ, Grad Inst Commun Engn, Dept Elect Engn, Taipei 10617, Taiwan
来源：
2008 IEEE INTERNATIONAL SYMPOSIUM ON ELECTROMAGNETIC COMPATIBILITY, VOLS 1-3 | 2008年
关键词：
Signal integrity; common-mode filter; EMI; defected ground plane; differential signal;
D O I：
暂无
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：
A novel low-cost filter design for common-mode noise suppression in high-speed differential signals is proposed. It is realized by etching si HU-shaped defected-ground structure (DGS) to perturb the return current of the common-mode noise. A simple LC resonator model for the proposed structure is also developed with good agreement to the full-wave simulation and measurement result. It is found that over 15dB of common-mode noise suppression can be achieved over a wide frequency ranges from 3.6 to 9.1 GHz while the differential signals still keep good signal integrity in eye-pattern observation.
引用
收藏
页码：383 / 386
页数：4
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