Transmitting magnetic field through metal chassis using fractal surfaces
AssigneeIntel Corporation
InventorsAnand S. Konanur, Ulun Karacaoglu, Songnan Yang
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Abstract
Described herein are techniques related one or more systems, apparatuses, methods, etc. for reducing induced currents in a apparatus chassis. For example, a fractal slot is constructed in the apparatus chassis to reduce the induced currents, and enhance passage of magnetic fields through the apparatus chassis. In this example, the fractal slot may include a no-self loop fractal space filling curve shape to provide high impedance to the induced currents.
Claims20
A portable electronic device comprising:
- a near field coil (NFC) antenna;
- and
- a conductive layer is placed near an external surface of the portable electronic device, wherein the NFC antenna is integrated adjacent to the conductive layer;
- and
- a plurality of apertures constructed on the conductive layer to cover an area defined at least by a radial pattern of the NFC antenna, wherein the plurality of apertures are coplanar to the NFC antenna.
A portable device chassis comprising:
- a near field communications (NFC) coil integrated underneath the apparatus chassis;
- a conductive layer, wherein the NFC coil is positioned coplanar to the conductive layer of portable electronic device;
- and
- a plurality of perforation apertures constructed on the conductive layer to cover an area defined by the NFC coil.
A method of reducing induced currents in an apparatus chassis comprising:
- providing a plurality of apertures that provide for radiation from a near field communications (NFC) coil;
- and
- radiating an electromagnetic field by the NFC antenna.
Dependencies are inferred from the claim text.