Near Field Communication
First Claim
Patent Images
1. Apparatus comprising:
- an antenna configured for efficient far field communication at a first frequency;
an inductive element comprising a plurality of series-connected coiled portions, including a first coiled portion and a second coiled portion, wherein the inductive element is configured to provide near field communication at a second frequency;
and at least one reactive element parallel connected between the first coiled portion and the second coiled portion, wherein the at least one reactive element has a lower impedance at the first frequency than at the second frequency.
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Accused Products
Abstract
Apparatus including: an antenna configured for efficient far field communication at a first frequency; an inductive element including a plurality of series-connected coiled portions, including a first coiled portion and a second coiled portion, wherein the inductive element is configured to provide near field communication at a second frequency; and at least one reactive element parallel connected between the first coiled portion and the second coiled portion, wherein the at least one reactive element has a lower impedance at the first frequency than at the second frequency.
269 Citations
42 Claims
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1. Apparatus comprising:
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an antenna configured for efficient far field communication at a first frequency; an inductive element comprising a plurality of series-connected coiled portions, including a first coiled portion and a second coiled portion, wherein the inductive element is configured to provide near field communication at a second frequency; and at least one reactive element parallel connected between the first coiled portion and the second coiled portion, wherein the at least one reactive element has a lower impedance at the first frequency than at the second frequency. - View Dependent Claims (4, 6, 12, 13, 14, 15, 16, 17, 18, 19, 22, 24, 25, 26)
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28. A method comprising:
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providing an inductive element comprising a plurality of series-connected coiled portions, including a first coiled portion and a second coiled portion; and providing at least one reactive element in parallel connection between the first coiled portion and the second coiled portion of the inductive element, to produce a modified inductive element configured to provide near field communication at a second frequency when used in an apparatus configured for efficient far field radio communication at a first frequency different to the second frequency.
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29. Apparatus comprising:
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an inductive element comprising a plurality of series-connected coiled portions, including a first coiled portion and a second coiled portion; and at least one reactive element parallel connected between the first coiled portion and the second coiled portion. - View Dependent Claims (30, 31, 33)
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Specification