Omni-directional antenna for a cylindrical body

Patent metadata

Field	Value
Publication number	US-9887463-B2
Application number	US-201615332925-A
Country	US
Kind code	B2
Filing date	Oct 24, 2016
Priority date	May 23, 2013
Publication date	Feb 6, 2018
Grant date	Feb 6, 2018

Abstract

An antenna for a cylindrical body may include a flexible substrate with the antenna on it with a first terminal and a second terminal electrically connected to an integrated circuit, the flexible substrate coupled to the cylindrical body.

First claim

What is claimed is:

1. A folded antenna for a cylindrical battery, comprising:
a flexible substrate comprising an aperture formed in a surface of the flexible substrate, the aperture configured to allow the cylindrical battery to pass therethrough such that the flexible substrate can be wrapped around the cylindrical battery;
an antenna with a first terminal and a second terminal coupled to the flexible substrate; and
an integrated circuit coupled to the first terminal and the second terminal;
wherein the antenna comprises an antenna trace creating at least one continuous loop on the surface of the flexible substrate, and
wherein the aperture formed in the surface of the flexible substrate is disposed within the at least one continuous loop of the antenna trace.

2. The folded antenna of claim 1 , wherein the flexible substrate comprises an electromagnetic field deflector.

3. The folded antenna of claim 1 , wherein the flexible substrate is selected from the group consisting of a protective layer, a multi-layered printed circuit board that is flexible, and a shrinkable material capable of being placed over the cylindrical body and thermally or light activated to shrink and conform the flexible substrate to the cylindrical body.

4. The folded antenna of claim 1 , wherein the cylindrical battery is an alkaline battery.

5. The folded antenna of claim 1 , wherein the continuous loop of the antenna trace comprises more than three turns.

6. The folded antenna of claim 5 , wherein the integrated circuit further comprises an analog to digital converter and a communication circuit, the integrated circuit is configured to sense a condition of the battery and to signally communicate the condition of the battery.

7. The folded antenna of claim 6 , wherein the condition of the battery is chosen from the group consisting of over-discharge protection, over-charge protection, remaining capacity determination, voltage determination, cycle life determination, and power management.

8. The folded antenna of claim 1 , wherein the integrated circuit is a radio frequency identification chip or a near field communication chip.

9. The folded antenna of claim 1 , comprising a first extended section, a second extended section, and a third extended section, wherein at least one of the first extended section, the second extended section, and the third extended section provide a mounting surface for a component of the folded antenna.

10. The folded antenna of claim 9 , wherein the first extended section is configured to flexibly couple to an anode of the battery, and wherein the second extended section is configured to flexibly couple to a cathode of the battery, and the third extended section flexibly couples to the integrated circuit.

11. The folded antenna of claim 1 , wherein the aperture is oriented substantially diagonally across the surface of flexible substrate.

12. A method to wrap a folded antenna around a cylindrical battery, comprising:
providing a folded antenna comprising a flexible substrate having a first flap, a second flap, and an aperture formed in a surface of the flexible substrate, wherein the aperture is defined by the first and second flaps;
pulling on at least one of the first and second flaps to open the aperture;
inserting the cylindrical battery within the aperture formed in the surface of the flexible substrate to allow the first and second flaps to conform the folded antenna to the cylindrical battery.

13. The method of claim 12 , wherein the cylindrical battery is an alkaline battery.

14. The method of claim 12 , wherein the folded antenna comprises an integrated circuit that is a radio frequency identification chip or a near field communication chip.

15. The method of claim 14 , wherein the integrated circuit further comprises an analog to digital converter and a communication circuit, the integrated circuit is configured to sense a condition of a battery and signally communicate the condition of the battery.

16. The method of claim 15 , wherein the integrated circuit signally communicates the condition of the battery to a reader, the reader is chosen from the group consisting of a smartphone, tablet, personal computer, dedicated radio frequency identification tag reader, a dedicated near field communication tag reader, a handheld computing device, and a wand antenna electrically coupled to a computing device.

17. The method of claim 12 wherein the folded antenna comprises a ferrite shield conformed to the cylindrical battery and a continuous loop antenna with a first terminal and a second terminal printed on the ferrite shield, and
wherein the folded antenna comprises an integrated circuit electrically coupled to an anode of the battery and a cathode of the battery and comprising an analog to digital converter and a communication circuit,
wherein the integrated circuit is configured to sense a condition of the battery and signally communicate the condition to a reader.

18. The method of claim 17 , wherein the integrated circuit further comprises a radio frequency identification chip or a near field communication chip.

19. The method of claim 17 , wherein the condition of the battery is chosen from the group consisting of over-discharge protection, over-charge protection, remaining capacity determination, voltage determination, cycle life determination, and power management.

20. The method of claim 17 , wherein the folded antenna comprises a first extended section, a second extended section, and a third extended section.

21. The method of claim 20 , wherein the first extended section is configured to flexibly couple to an anode of the battery, and wherein the second extended section is configured to flexibly couple to a cathode of the battery, and wherein the third extended section flexibly couples to the integrated circuit.

22. The method of claim 12 , wherein the aperture is oriented substantially diagonally across the surface of flexible substrate.

Assignees

• Duracell Us Operations Inc

Inventors

• Bourilkov Jordan Todorov
• Coronado Hortal Sergio
• Morris William Fitler
• Specht Steven Jeffrey
• Giles Calvin
• Stefanov Konstantin

Classifications

• H01Q1/225 Primary

  used in level-measurement devices, e.g. for level gauge measurement · CPC title

• H02J7/485

  with provisions for charging different types of batteries · CPC title

• H02J7/84

  Control of state of health [SOH] · CPC title

• H02J7/44

  between battery management systems and power sources · CPC title

• H02J7/82

  Control of state of charge [SOC] · CPC title