Characteristics of shield materials for wireless power transfer

In Chang Chu, Jinseong Jeong

Research output: Contribution to journalArticlepeer-review

2 Scopus citations


In this paper, we examine the electrical and magnetic properties of three different types of shield materials used for wireless power transfer systems: namely, FeSiAl-composite, NiZn-ferrite, and FeSi-amorphous types. The power transfer efficiency and resistance of an RX coil are measured, while varying the shield thickness. For all three types, a thicker shield provides better power transfer efficiency. Analysis of the measurements shows that the FeSiAl-composite type is suitable for systems with size limitation. In terms of magnetic properties, the FeSi-amorphous type shows the best features, and is suited to high power applications. This work can be used as a guideline to select suitable shielding material in various wireless power transfer systems.

Original languageEnglish
Pages (from-to)291-294
Number of pages4
JournalJournal of Magnetics
Issue number3
StatePublished - 2014


  • Electromagnetic interference prevention
  • Shield material
  • Wireless power transfer system


Dive into the research topics of 'Characteristics of shield materials for wireless power transfer'. Together they form a unique fingerprint.

Cite this