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US 2026/0074423 A1Published application
Nfc antenna assembly
AssigneeSTMicroelectronics International N.V.
InventorsChristoph CHLESTIL, Martin RAMPETSREITER
Life of this patent
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Abstract
The present disclosure relates to an NFC antenna assembly including: an NFC signal antenna having terminals and at least one plane winding arranged in a first plane; and a plane conductive surface: insulated from the antenna and being at a floating potential; overlaying a first region arranged outside the winding and including the terminals of the antenna; and overlaying from 7% included to 40% included of a winding inner region.
Claims21
An NFC antenna assembly comprising:
- an NFC signal antenna including:
- terminals;
- and
- at least one plane winding arranged in a first plane;
- and
- a plane conductive surface insulated from the antenna and being at a floating potential, overlaying a first region arranged outside the winding and including the terminals of the antenna, and overlaying from 7% included to 40% included of a winding inner region.
3 more elements
An NFC system comprising:
- an optoelectronic display;
- an NFC antenna assembly arranged inside the system and including:
- an NFC signal antenna including terminals and at least one plane winding arranged in a first plane;
- and
- a planar conductive surface insulated from the antenna and being at a floating potential, overlaying a first region arranged outside the winding and including the terminals of the antenna, and overlaying an inner region of the winding inner region;
- and
- the antenna of the NFC antenna assembly being arranged between the conductive surface and a backside of the display.
4 more elements
A method, comprising:
- initiating, with an NFC controller of an NFC device, communication with an external NFC tag;
- controlling, with an NFC controller, an antenna assembly of the NFC device to power an external NFC tag;
- and
- sensing, with the antenna assembly, commands through a magnetic field to the passive external tag, the antenna assembly including an NFC signal antenna having terminals and at least one plane winding arranged in a first plane, the antenna assembly including a planar conductive surface insulated from the antenna and being at a floating potential, overlaying a first region arranged outside the winding and including the terminals of the antenna, and overlaying winding inner region.
1 more element
(canceled)
Dependencies are inferred from the claim text.