Title: Influence of Shielding Materials on Coil Characteristics in Inductive Wireless Power Systems
Authors: Wielandt, Stijn
De Strycker, Lieven
Goemaere, Jean Pierre
Stevens, Nobby
Issue Date: 2-Sep-2013
Conference: IEEE international symposium on electromagnetic compatibility location:Bruges, Belgium date:02-06 September 2013
Abstract: Inductive wireless power systems rely on a low frequency, non-radiating, alternating magnetic field that may interfere with nearby objects or devices. In order to prevent this interference, the coils of inductive wireless power systems are often equipped with a shield consisting of ferrite or a combination of a ferrite and a metal plate. However, these materials have a significant influence on coil characteristics such as self inductance, equivalent series resistance, parasitic capacitance, quality factor and self resonance frequency. This paper discusses the influence of the mentioned shields on a wirewound pancake coil. The observed effects are discussed and their influence on the performance of a wireless power system is evaluated. These results can consequently be considered in the magnetic and electrical design process of a wireless power system.
Publication status: published
KU Leuven publication type: IC
Appears in Collections:ESAT- TELEMIC, Telecommunications and Microwaves
Technologiecluster ESAT Elektrotechnische Engineering
Electrical Engineering (ESAT) TC, Technology Campuses Ghent and Aalst

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