Antenna employing a cover

• US 7,358,927 B2
• Filed: 10/26/2004
• Issued: 04/15/2008
• Est. Priority Date: 10/26/2004
• Status: Active Grant

• Current Assignee: Eaton Intelligent Power Limited (Eaton Corporation PLC.)
• Original Assignee: Eaton Corp. (Wisconsin) (Eaton Corporation PLC.)
• Inventors: Planning, Matthew F., Luebke, Charles J.
• Primary Examiner(s): MANCUSO, HUEDUNG XUAN CAO
• Application Number:
  US10/973,582
• Publication Number:
  US 20060097949A1
• Time in Patent Office: 1,267 Days
• Field of Search: 343/907, 343/700.MS, 343/748, 343/866, 343/895, 307/140
• US Class Current: 343/907
• CPC Class Codes: H01Q 1/40 Radiating elements coated with or embedded in protective material
• 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
• CPC Class Codes: H01Q 9/20 Two collinear substantially straight active elements; Substantially straight single active elements H01Q9/28 takes precedence
• CPC Class Codes: H01Q 9/42 with folded element, the folded parts being spaced apart a small fraction of the operating wavelength

Abstract

An antenna is for a wireless communication device mounted in an opening of a wall. The antenna includes a switch cover plate adapted to cover the opening of the wall. The switch cover plate includes a first or front surface adapted to be disposed away from the opening and an opposite second or rear surface adapted to face the opening. An antenna element, such as a dipole or loop, engages the front surface of the cover plate or is disposed between the front and rear surfaces. A connector is electrically interconnected with the antenna element.

Claims

1. An antenna for a wireless communication device mounted in an opening of a surface, said antenna comprising:

a cover adapted to cover the opening of said surface, said cover including a first surface adapted to be disposed away from said opening and an opposite second surface adapted to face said opening;

an antenna element engaging the second surface of said cover or disposed between the first and second surfaces of said cover; and

a connector electrically interconnected with said antenna element, said connector extending away from the second surface of said cover and external to said cover.

2. The antenna of claim 1 wherein said cover is selected from the group consisting of a wall plate cover, a switch cover plate, a switch cover, an outlet cover, a dimmer cover, a dimmer switch cover, a timer cover, and a socket cover.

3. The antenna of claim 1 wherein said antenna element is selected from the group consisting of a dipole antenna;

a loop antenna;

a planar, inverted-F antenna;

a patch antenna; and

a single-ended, high-impedance antenna.

4. The antenna of claim 1 wherein said connector is selected from the group consisting of a coaxial connector, and a two-terminal connector.

5. The antenna of claim 1 wherein said antenna element is a dipole antenna.

6. The antenna of claim 5 wherein said dipole antenna includes a first linear member engaging the second surface of said cover and a second linear member engaging the second surface of said cover, said first and second linear members being at least substantially co-linear with respect to each other;

and wherein said connector is a first terminal directly electrically connected to said first linear member and a second terminal directly electrically connected to said second linear member.

7. The antenna of claim 1 wherein said antenna element is a planar, inverted-F antenna.

8. The antenna of claim 7 wherein said planar, inverted-F antenna includes a first plane and a second plane, said first and second planes being electrically connected and mechanically coupled;

and wherein said connector includes a first conductor directly electrically connected to said first plane and a second conductor directly electrically connected to said second plane.

9. The antenna of claim 7 wherein said second plane includes an opening therein;

and wherein said second conductor passes through the opening of said second plane.

10. The antenna of claim 1 wherein said antenna element is a loop antenna.

11. The antenna of claim 10 wherein said loop antenna includes a loop element engaging the second surface of said cover, said loop element including a first end and a second end;

and wherein said connector is a first terminal directly electrically connected to the first end of said loop element and a second terminal directly electrically connected to the second end of said loop element.

12. The antenna of claim 1 wherein said antenna element is a patch antenna.

13. The antenna of claim 12 wherein said patch antenna includes a patch member engaging the second surface of said cover.

14. The antenna of claim 1 wherein said cover is made of plastic.

15. The antenna of claim 14 wherein said antenna element is plated on the second surface of said plastic cover.

16. The antenna of claim 14 wherein said connector includes a conductor protruding through the second surface of said plastic cover.

17. The antenna of claim 1 wherein said connector engages the second surface of said cover.

18. The antenna of claim 1 wherein said connector is a one-terminal connector and said antenna element is a single-ended, high-impedance antenna.

19. The antenna of claim 1 wherein said antenna element engages the second surface of said cover.

20. An antenna for a wireless communication device mounted in an opening of a surface, said antenna comprising:

a cover adapted to cover the opening of said surface, said cover including a first surface adapted to be disposed away from said opening and an opposite second surface adapted to face said opening;

an antenna element insert-molded between the first and second surfaces of said cover; and

a connector electrically interconnected with said antenna element,

wherein said connector extends away from the opposite second surface of said cover and external to said cover.

21. The antenna of claim 20 wherein said cover is made of plastic;

and wherein said antenna element includes at least one conductor molded between the first and second surfaces of said plastic cover and at least one terminal protruding through the second surface of said plastic cover and electrically connected to said connector.

22. An antenna for a wireless communication device mounted in an opening of a surface, said antenna comprising:

a cover adapted to cover the opening of said surface, said cover including a first surface adapted to be disposed away from said opening and an opposite second surface adapted to face said opening;

an antenna element engaging the opposite second surface of said cover or disposed between the first and opposite second surfaces of said cover; and

a connector electrically interconnected with said antenna element,

wherein said cover and said antenna element cooperate to form a substantially flat structure, and

wherein said connector extends away from the opposite second surface of said cover and external to said cover.

23. The antenna of claim 22 wherein said antenna element is a dipole antenna including a first linear member disposed between the first and second surfaces of said cover and a second linear member disposed between the first and second surfaces of said cover, said first and second linear members being at least substantially co-linear with respect to each other;

and wherein said connector includes a first terminal electrically connected to said first linear member and a second terminal electrically connected to said second linear member.

24. The antenna of claim 22 wherein said antenna element is a loop antenna including a loop element disposed between the first and second surfaces of said cover, said loop element including a first end and a second end;

and wherein said connector includes a first terminal electrically connected to the first end of said loop element and a second terminal electrically connected to the second end of said loop element.

25. The antenna of claim 22 wherein said antenna element is a patch antenna including a member disposed between the first and second surfaces of said cover.

26. The antenna of claim 22 wherein said substantially flat structure has a first thickness;

wherein said antenna element has a second thickness; and

wherein said first thickness is less than four times said second thickness.

27. The antenna of claim 22 wherein said substantially flat structure has a first thickness;

wherein said antenna element has a second thickness; and

wherein said first thickness is about two times said second thickness.