An Ultra-Wideband Common-Mode Suppression Filter Based on S-DBCSRR for High-Speed Differential Signals

Author

Hao-Ran Zhu ; Jun-Fa Mao

Author_Institution

Key Lab. of Minist. of Educ. for Res. of Design & EMC of High Speed Electron. Syst., Shanghai Jiao Tong Univ., Shanghai, China

Volume

25

Issue

4

fYear

2015

fDate

Apr-15

Firstpage

226

Lastpage

228

Abstract

In this letter, an ultra-wideband common mode filter is proposed for high-speed differential signal transmission. By etching a slot in the inner patch of a double slit complementary split ring resonator (S-DBCSRR), the noise rejection bandwidth can be expanded. The equivalent circuit model and surface current distribution are given to explain the working principle of the filter. From the simulated and measured results, it is found that the fractional bandwidth of the presented filter is 92% with a noise suppression level of 20 dB, and the differential signal can propagate with little degradation.

Keywords

current distribution; equivalent circuits; filters; interference suppression; ultra wideband technology; double slit complementary split ring resonator; equivalent circuit model; high-speed differential signal transmission; noise rejection bandwidth; noise suppression; surface current distribution; ultrawideband common-mode suppression filter; Bandwidth; Etching; Inductance; Microwave circuits; Noise; Power transmission lines; Ultra wideband technology; Common-mode (CM) filter; complementary split ring resonator (CSRR); differential signal; wideband suppression;

fLanguage

English

Journal_Title

Microwave and Wireless Components Letters, IEEE

Publisher

ieee

ISSN

1531-1309

Type

jour

DOI

10.1109/LMWC.2015.2400914

Filename

7041240