Abstract
A strategy to mitigate electromagnetic interference in quad/octal small form-factor pluggable interfaces using a common-mode/differential-mode filter is presented in this research. Differential source imbalance produces significant common- and differential-mode noise in the differential pseudorandom binary sequence signal. EMI associated with this noise can be reduced by incorporating a band stop filter onto the differential line on a printed circuit board. Two kinds of filters were tested: common mode and common/differential mode. It was demonstrated that the application of a common-mode/differential-mode filter is more advantageous than a common-mode filter and allows to achieve the suppression of the total radiated power by 17 dB to 7 dB in the frequency range from 10 GHz to 26 GHz.
Recommended Citation
S. Singh et al., "Mitigating Optical Module Emi using Common- and Differential-Mode Filters," IEEE International Symposium on Electromagnetic Compatibility, pp. 465 - 469, Institute of Electrical and Electronics Engineers, Jan 2025.
The definitive version is available at https://doi.org/10.1109/EMCSIPI52291.2025.11170239
Department(s)
Electrical and Computer Engineering
Keywords and Phrases
Band-stop filters; Common-mode filters; Electromagnetic interference; EMI; High-speed connector interfaces; Skew; Source imbalance
International Standard Serial Number (ISSN)
2158-1118; 1077-4076
Document Type
Article - Conference proceedings
Document Version
Citation
File Type
text
Language(s)
English
Rights
© 2025 Institute of Electrical and Electronics Engineers, All rights reserved.
Publication Date
01 Jan 2025
