Wireless communication device with integrated antenna

• US 20070057852A1
• Filed: 09/15/2005
• Published: 03/15/2007
• Est. Priority Date: 09/15/2005
• Status: Active Grant

• Current Assignee: Google Technology Holdings LLC (Alphabet Inc.)
• Original Assignee: Motorola, Inc. (Motorola Solutions, Inc.)
• Inventors: Castaneda, Julio, Burnette, Donald, Gomez, Orlando, Leizerovich, Gustavo
• Granted Patent: US 7,333,062 B2
• Time in Patent Office: Days
• US Class Current: 343/702
• CPC Class Codes: H01Q 1/243 with built-in antennas
• CPC Class Codes: H01Q 7/00 Loop antennas with a substantially uniform current distribution around the loop and having a directional radiation pattern in a plane perpendicular to the plane of the loop

Abstract

A near field communication loop antenna (308) is mechanically coupled to the cover (300) of a cellular telephone. The antenna (308) is coupled on the inside of the cover (300) between a keypad (302) and the cover (300), whereby the antenna (308) surrounds the keys (314) and is sandwiched between the keypad assembly (302) and the cover (300). A near field communication antenna (406) is coupled to the outside surface of the cover (300) surrounding a display and sandwiched between a lens (400) and the phone cover (300). A near field communication antenna embedded in the phone cover material, whereby the antenna surrounds either the keys or the display, is disclosed as well.

Claims

1. An apparatus for wireless communication, the apparatus comprising:

a cover for a mobile communication device, the cover having an inside surface and an outside surface;

a near field communication antenna mechanically coupled to the inside surface of the cover; and

a keypad mechanically coupled to the cover, whereby the near field communication antenna at least partially surrounds a set of keys on the keypad.

2. The apparatus according claim 1, wherein the near field communication antenna comprises:

a loop antenna.

3. The apparatus according to claim 2, wherein the loop antenna is at least partially sandwiched between a portion of the keypad and the cover.

4. The apparatus according to claim 1, wherein the mechanical coupling of the near field communication antenna to the inside surface of the cover is performed via an adhesive material.

5. The apparatus according to claim 1, wherein the near field communication antenna is encapsulated in an element-supporting material.

6. The apparatus according to claim 1, further comprising:

a circuit board including at least one of an RF transmission circuit and an RF receiving circuit, the circuit board being electrically coupled to the near field communication antenna.

7. An apparatus for wireless communication, the apparatus comprising:

a cover for a mobile communication device, the cover having an inside surface and an outside surface;

a near field communication antenna mechanically coupled to the outside surface of the cover; and

a lens mechanically coupled to the cover, whereby the antenna is located between the cover and at least a portion of the lens.

8. The apparatus according claim 7, wherein the near field communication antenna comprises:

a loop antenna.

9. The apparatus according to claim 8, wherein the loop antenna at least partially surrounds a display opening in the cover.

10. The apparatus according to claim 7, wherein the mechanical coupling of the near field communication antenna to the outside surface of the cover is performed via an adhesive material.

11. The apparatus according to claim 7, wherein the near field communication antenna is encapsulated in an element-supporting material.

12. The apparatus according to claim 7, further comprising:

a circuit board including at least one of an RF transmission circuit and an RF receiving circuit, the circuit board being electrically coupled to the near field communication antenna.

13. An apparatus for wireless communication, the apparatus comprising:

a cover for a wireless device, the cover having at least one of an opening for a keypad and an opening for a display; and

a near field communication antenna at least partially embedded within the cover, whereby the antenna at least partially surrounds at least one of the openings.

14. The apparatus according claim 13, wherein the near field communication antenna comprises:

a loop antenna.

15. The apparatus according to claim 13, wherein the cover is made of a non-conductive material at least where the near field communication antenna is at least partially embedded within the cover.

16. The apparatus according to claim 15, wherein the non-conductive material comprises plastic.

17. The apparatus according to claim 13, further comprising:

a circuit board including at least one of an RF transmission circuit and an RF receiving circuit, the circuit board being electrically coupled to the near field communication antenna.

18. An apparatus for wireless communication, the apparatus comprising:

a cover for a mobile communication device, the cover having an inside surface and an outside surface;

a short-range communication antenna mechanically coupled to the inside surface of the cover; and

a keypad mechanically coupled to the cover, whereby the short-range communication antenna at least partially surrounds a set of keys on the keypad.