Modeling electrical conductivity of metal meshes for predicting shielding effectiveness in magnetic fields of wireless power transfer systems

Publikation: Beitrag in FachzeitschriftForschungsartikelBeigetragenBegutachtung

Beitragende

Abstract

The dimensioning of wireless power transfer systems requires compliance with safety standards for human exposure and electromagnetic compatibility. For this reason, shielding is conventionally carried out with heavy and costly plates. In order to evaluate a lightweight and low-cost alternative, this paper presents a comprehensive investigation of the shielding effectiveness of metal meshes in magnetic fields of wireless power transfer systems, including analytical modeling and experimental validation. Special emphasis is laid on the validation of novel analytical approximation approaches to model the anisotropic electrical conductivity of metal meshes. The proposed approaches show good consistency of the mean value taking into account warp and weft direction, whereas the modeling of the anisotropic behavior is not sufficiently accurately represented. Using the calculated electrical conductivity, the analytical modeling of the maximum shielding effectiveness based on a literature-known approach is very consistent for the experimental validation. Thus, the performed studies provide a significant contribution to the dimensioning of metal meshes as shielding for wireless power transfer systems.

Details

OriginalspracheEnglisch
Aufsatznummer2156
Seitenumfang17
FachzeitschriftElectronics
Jahrgang11
Ausgabenummer14
PublikationsstatusVeröffentlicht - 9 Juli 2022
Peer-Review-StatusJa

Externe IDs

Scopus 85136432294
Mendeley 847ad8d2-bd5a-3173-af98-4ba1f9361eae
ORCID /0000-0003-2834-8933/work/142238424
ORCID /0000-0002-8854-7726/work/142242113

Schlagworte

Schlagwörter

  • electromagnetic shielding, near-field, metal mesh, analytical modeling, testing, wireless power transfer