Activities per year
Shielding effectiveness (SE) is an important measure of how well an enclosure reduces the electromagnetic (EM) field incident upon it. Commonly, when the shielding effectiveness of an enclosure is stated it is for the case when the enclosure is empty. Including contents such as printed circuit boards (PCBs) in the enclosure will affect the shielding effectiveness as the PCB absorbs EM energy. One technique of determining how much energy a PCB absorbs is to measure its absorption cross section (ACS) using a reverberation chamber (RC). The measured ACS can be used to predict the shielding effectiveness of an enclosure when the PCB is inside it using power balance techniques. In this paper the ACS of a number of PCBs are measured both individually and in closely stacked groups. This information is then used to show how the ACS can be used to calculate shielding effectiveness and the results are compared to direct measurement of the SE of the enclosure containing a PCB. Knowledge of the ACS of typical or particular PCBs could be used by engineers to estimate the real shielding effectiveness of an enclosure with contents, when designing electronic systems.
|Title of host publication||Electromagnetic Compatibility (EMC EUROPE), 2016 International Symposium on|
|Publication status||Published - 5 Sep 2016|
|Event||EMC Europe 2016 - Wroclaw, Poland|
Duration: 5 Sep 2016 → 9 Sep 2016
|Conference||EMC Europe 2016|
|Period||5/09/16 → 9/09/16|
Bibliographical note© 2016 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.
- Absorption cross section
- electromagnetic shielding
- reverberation chamber
- 1 Industrial
HUAWEI Technologies Co., Ltd.
Ian David Flintoft (Collaborator)21 May 2016 → 28 May 2016
Activity: Visiting an external institution › Industrial
Electromagnetic shielding properties of Materials, and Enclosures
Dawson, J. F., Marvin, A., Flintoft, I. D., Dawson, L., Porter, S. J., Robinson, M. P. & Yan, J.
1/01/90 → …
Project: Other project › Miscellaneous project
Shielding Measurement of Electrically Large Enclosures with Contents
Marvin, A., Dawson, J. F., Robinson, M. P., Bale, S. J., Flintoft, I. D., Parker, S. & Yan, J.
1/09/14 → 31/08/16
Project: Research project (funded) › Research