System Level EMC for Multiple EMI Sources

Javad Meiguni, Morten Soerensen, Wei Zhang, Ahmad Hosseinbeig, David Pommerenke, Kaustav Ghosh, Philippe Sochoux, Jacques Rollin, Angela Li

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

A system level EMC method is proposed in this paper to predict the electromagnetic interference (EMI) from multiple radiators. The problem under test consists of a large network router with 480 optical modules radiating at 10.3 GHz. The proposed method handles the analysis of this system by using different phased array antenna topologies. Systematic conclusions are presented including the effect of same frequency vs. different frequency of radiating subsystems, the possibility of missing the maximum emission (Emax) during horizontal scan and height scan, and the effect of the radiation pattern for different radiators. The results indicate the existence of a 10 Log N (dB) tendency for the Emax parameter in the case of adding a complex electric field (voltage) and random phase distribution over the line cards. It also shows similarity to an 8 Log N (dB) tendency for adding power intensity for different line cards with slightly offset frequencies. The developed method can be extended to other frequency ranges when necessary. The proposed statistical method is useful when it is not practical to assemble a complete system consisting of several radiating subsystems with different frequencies in EMI testing.

Original languageEnglish
Title of host publication2019 IEEE International Symposium on Electromagnetic Compatibility, Signal and Power Integrity, EMC+SIPI 2019
PublisherInstitute of Electrical and Electronics Engineers
Pages493-498
Number of pages6
ISBN (Electronic)9781538691991
DOIs
Publication statusPublished - 1 Jul 2019
Externally publishedYes
Event2019 IEEE International Symposium on Electromagnetic Compatibility, Signal and Power Integrity, EMC+SIPI 2019 - New Orleans, United States
Duration: 22 Jul 201926 Jul 2019

Publication series

Name2019 IEEE International Symposium on Electromagnetic Compatibility, Signal and Power Integrity, EMC+SIPI 2019

Conference

Conference2019 IEEE International Symposium on Electromagnetic Compatibility, Signal and Power Integrity, EMC+SIPI 2019
CountryUnited States
CityNew Orleans
Period22/07/1926/07/19

Keywords

  • Adding power intensity vs adding complex field
  • electromagnetic emission
  • Monte Carlo simulation
  • phased array antenna
  • system level EMC

ASJC Scopus subject areas

  • Signal Processing
  • Energy Engineering and Power Technology
  • Electrical and Electronic Engineering
  • Safety, Risk, Reliability and Quality

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