Reduction of Electromagnetic Emission from ICs Using Soft Flexible Ferrite Sheets

Bernd Deutschmann; Junaid Shakeel Khan; Gunter Winkler; Jorge Victoria

doi:10.1109/EMCCompo52133.2022.9758602

Reduction of Electromagnetic Emission from ICs Using Soft Flexible Ferrite Sheets

Bernd Deutschmann, Junaid Shakeel Khan, Gunter Winkler, Jorge Victoria

Institute of Electronics (4390)

Research output: Chapter in Book/Report/Conference proceeding › Conference paper › peer-review

Abstract

Soft ferrite sheets are widely used to reduce e.g. unwanted electromagnetic emissions from electronic systems. Based on standardized measurement procedures, the attenuation properties of different materials and thicknesses of such ferrite sheets can be investigated over a wide frequency range. The results of the measurements can be used to find the right ferrite plates for targeted reduction of electromagnetic interferences. In this paper, we characterize different ferrite sheets by measuring the coupling between two antennas according to a standardized measurement procedure as defined in IEC 62333. Furthermore, these ferrite sheets are applied to the surface of an IC package and various IC-level measurements are used to demonstrate the real electromagnetic emission reduction that can be achieved with such ferrite sheets. Thereby reduction of the near E- and H-field is measured with near-field probes. Additionally, the reduction of the emissions obtained with the TEM -cell and the IC stripline method are considered. Finally, we will also discuss the influence of ferrite sheets on the conducted emission of an IC.

Original language	English
Title of host publication	2021 13th International Workshop on the Electromagnetic Compatibility of Integrated Circuits, EMC Compo 2021
Publisher	Institute of Electrical and Electronics Engineers
Pages	19-24
Number of pages	6
ISBN (Electronic)	9781665423809
DOIs	https://doi.org/10.1109/EMCCompo52133.2022.9758602
Publication status	Published - 2021
Event	13th International Workshop on the Electromagnetic Compatibility of Integrated Circuits: EMC Compo 2021 - Crown Plaza, Bruges, Belgium Duration: 8 Mar 2022 → 11 Mar 2022 https://emccompo2021.eu/

Workshop

Workshop	13th International Workshop on the Electromagnetic Compatibility of Integrated Circuits
Abbreviated title	EMC Compo 2021
Country/Territory	Belgium
City	Bruges
Period	8/03/22 → 11/03/22
Internet address	https://emccompo2021.eu/

Keywords

electromagnetic emission
EMI reduction
IEC 61967
IEC 62333
soft ferrite sheets

ASJC Scopus subject areas

Safety, Risk, Reliability and Quality
Electrical and Electronic Engineering
Radiation

Access to Document

10.1109/EMCCompo52133.2022.9758602

Cite this

Deutschmann, B., Khan, J. S., Winkler, G., & Victoria, J. (2021). Reduction of Electromagnetic Emission from ICs Using Soft Flexible Ferrite Sheets. In 2021 13th International Workshop on the Electromagnetic Compatibility of Integrated Circuits, EMC Compo 2021 (pp. 19-24). Institute of Electrical and Electronics Engineers. https://doi.org/10.1109/EMCCompo52133.2022.9758602

Reduction of Electromagnetic Emission from ICs Using Soft Flexible Ferrite Sheets. / Deutschmann, Bernd; Khan, Junaid Shakeel; Winkler, Gunter et al.
2021 13th International Workshop on the Electromagnetic Compatibility of Integrated Circuits, EMC Compo 2021. Institute of Electrical and Electronics Engineers, 2021. p. 19-24.

Research output: Chapter in Book/Report/Conference proceeding › Conference paper › peer-review

Deutschmann, B, Khan, JS, Winkler, G & Victoria, J 2021, Reduction of Electromagnetic Emission from ICs Using Soft Flexible Ferrite Sheets. in 2021 13th International Workshop on the Electromagnetic Compatibility of Integrated Circuits, EMC Compo 2021. Institute of Electrical and Electronics Engineers, pp. 19-24, 13th International Workshop on the Electromagnetic Compatibility of Integrated Circuits, Bruges, Belgium, 8/03/22. https://doi.org/10.1109/EMCCompo52133.2022.9758602

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N2 - Soft ferrite sheets are widely used to reduce e.g. unwanted electromagnetic emissions from electronic systems. Based on standardized measurement procedures, the attenuation properties of different materials and thicknesses of such ferrite sheets can be investigated over a wide frequency range. The results of the measurements can be used to find the right ferrite plates for targeted reduction of electromagnetic interferences. In this paper, we characterize different ferrite sheets by measuring the coupling between two antennas according to a standardized measurement procedure as defined in IEC 62333. Furthermore, these ferrite sheets are applied to the surface of an IC package and various IC-level measurements are used to demonstrate the real electromagnetic emission reduction that can be achieved with such ferrite sheets. Thereby reduction of the near E- and H-field is measured with near-field probes. Additionally, the reduction of the emissions obtained with the TEM -cell and the IC stripline method are considered. Finally, we will also discuss the influence of ferrite sheets on the conducted emission of an IC.

AB - Soft ferrite sheets are widely used to reduce e.g. unwanted electromagnetic emissions from electronic systems. Based on standardized measurement procedures, the attenuation properties of different materials and thicknesses of such ferrite sheets can be investigated over a wide frequency range. The results of the measurements can be used to find the right ferrite plates for targeted reduction of electromagnetic interferences. In this paper, we characterize different ferrite sheets by measuring the coupling between two antennas according to a standardized measurement procedure as defined in IEC 62333. Furthermore, these ferrite sheets are applied to the surface of an IC package and various IC-level measurements are used to demonstrate the real electromagnetic emission reduction that can be achieved with such ferrite sheets. Thereby reduction of the near E- and H-field is measured with near-field probes. Additionally, the reduction of the emissions obtained with the TEM -cell and the IC stripline method are considered. Finally, we will also discuss the influence of ferrite sheets on the conducted emission of an IC.

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ER -

Reduction of Electromagnetic Emission from ICs Using Soft Flexible Ferrite Sheets

Abstract

Workshop

Keywords

ASJC Scopus subject areas

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