Near field communication ring

1. A near field communication ring configured to be worn by a user, comprising:

at least one metal ring having a gap;

a chip; and

an antenna, wherein the chip and the antenna are fixed to the at least one metal ring having a gap;

wherein the chip, using the antenna, is configured to provide a near field communication with an external device, and

wherein the gap is an isolation gap configured to reduce induction of eddy currents in the at least one ring.

2. The near field communication ring of claim 1 ,

wherein the at least one metal ring having a gap comprises a plurality of metal rings, each of which having a gap.

3. The near field communication ring of claim 2 ,

wherein each of the metal rings has a central axis, and wherein the plurality of metal rings is stacked such that the central axes coincide.

4. The near field communication ring of claim 2 ,

wherein at least two of the metal rings are arranged with their respective gaps in different circumferential positions.

5. The near field communication ring of claim 2 ,

wherein each metal ring of the plurality of metal rings is electrically insulated from each of the other metal rings by an insulating material.

6. The near field communication ring of claim 5 ,

wherein the insulating material is an electrically insulating glue.

7. The near field communication ring of claim 1 ,

wherein the chip is arranged in the gap.

8. The near field communication ring of claim 2 ,

wherein the antenna is arranged between two metal rings of the plurality of metal rings.

9. The near field communication ring of claim 1 ,

wherein the gap is formed such that the at least one metal ring is an open ring having a first end at a first side of the gap and a second end at a second side of the gap.

10. The near field communication ring of claim 1 ,

wherein the gap has a width in a range from 0.1 mm to 1 cm.

11. The near field communication ring of claim 1 ,

wherein the metal comprises at least one of a group of metals, the group comprising:

silver;

gold;

platinum;

titanium;

copper;

iron;

aluminum; and

an alloy of at least two of the above metals.

12. Method of forming a near field communication ring configured to be worn by a user, comprising:

forming at least one metal ring having a gap;

fixing a chip and an antenna to the at least one metal ring,

wherein the chip is configured to provide a near field communication with an external device using the antenna, and

wherein the gap is an isolation gap configured to reduce induction of eddy currents in the at least one ring.

13. A near field communication ring configured to be worn by a user, comprising:

at least one metal ring having a gap;

a chip; and

an antenna, wherein the chip and the antenna are fixed to the at least one metal ring having a gap;

wherein the chip, using the antenna, is configured to provide a near field communication with an external device, and

wherein the gap is filled by a filling, the filling comprising an electrically insulating material.