Duel grounded internal antenna

• US 7,027,838 B2
• Filed: 09/10/2002
• Issued: 04/11/2006
• Est. Priority Date: 09/10/2002
• Status: Active Grant

• Current Assignee: Google Technology Holdings LLC (Alphabet Inc.)
• Original Assignee: Motorola, Inc. (Motorola Solutions, Inc.)
• Inventors: Shankar, Chidambaram, Zhou, Guangping
• Primary Examiner(s): Milord, Marceau
• Application Number:
  US10/238,351
• Publication Number:
  US 20040204006A1
• Time in Patent Office: 1,309 Days
• Field of Search: 455/550.1, 455/575.7, 455/562.1, 455/556.1, 455/556.2, 455/63.4, 455/568.7, 343/702, 343/725, 343/700.MS, 343/795, 343/713
• US Class Current: 455/562.1
• CPC Class Codes: H01Q 1/243 with built-in antennas
• CPC Class Codes: H01Q 9/0421 with a shorting wall or a shorting pin at one end of the element H01Q9/0414 takes precedence

Abstract

A dual grounded internal antenna (110) is described herein. The dual grounded internal antenna (110) may include a first ground plane (210), a second ground plane (220), and a radiating element (230). The second ground plane (220) may be operatively coupled to the first ground plane (210) via a first connection (242). The radiating element (230) may be operatively coupled to the first ground plane (210) via a second connection (244). Further, the radiating element (230) may be operatively coupled to the second ground plane (220) via a third connection (246).

Claims

1. An antenna for a handheld wireless device, the antenna comprising:

a first physical ground plane;

a second physical ground plane operatively coupled to the first physical ground plane via a first connection, the first connection being one of a plurality of bandwidth tuning pins; and

a radiating element operatively coupled to the first physical ground plane via a second connection and operatively coupled to the second physical ground plane via a third connection.

2. The antenna of claim 1, wherein each of the first and second physical ground planes is a conducting material.

3. The antenna of claim 1, wherein the radiating element is a metal material.

4. The antenna of claim 1, wherein the second connection is a feeding pin.

5. The antenna of claim 1, wherein the third connection is a frequency tuning ground pin.

6. The antenna of claim 1, wherein the first physical ground plane is a ground plane having a portion disposed intermediate of the second physical ground plane and the radiating element.

7. The antenna of claim 1, wherein the first physical ground plane is a ground plane having one of a hole, a slot, a slit, a cavity, a groove, a notch, a passage, and an opening.

8. The antenna of claim 1 is integrated into one of a cellular telephone, a personal digital assistant (PDA), and a pager.

9. In a wireless communication system, wherein a mobile station includes a dual grounded internal antenna, the internal antenna comprising:

a first ground plane configured to control frequency;

a second ground plane configured to control bandwidth, the second ground plane operatively coupled to the first ground plane via a first pin; and

a radiating element configured to transmit and to receive a signal, the radiating element being operatively coupled to the first ground plane via a second pin and operatively coupled to the second ground plane via a third pin.

10. The internal antenna of claim 9, wherein each of the first and second ground planes is a conducting material.

11. The internal antenna of claim 9, wherein the radiating element is a metal material.

12. The internal antenna of claim 9, wherein the first pin is one of a plurality of bandwidth tuning pins.

13. The internal antenna of claim 9, wherein the second pin is a feeding pin.

14. The internal antenna of claim 9, wherein the third pin is a frequency tuning ground pin.

15. The internal antenna of claim 9, wherein the first ground plane comprises an inserted bridge, the inserted bridge being disposed intermediate of the second ground plane and the radiating element.

16. The internal antenna of claim 9, wherein the first ground plane is ground plane having one of a hole, a slot, a slit, a cavity, a groove, a notch, a passage, and an opening.

17. The internal antenna of claim 9, wherein the mobile station is one of a cellular telephone, a personal digital assistant (PDA), and a pager.

18. A structure for transmitting and receiving a signal, wherein the structure is disposed within a mobile station, the structure comprising:

a first conducting element configured to control frequency;

.

a second conducting element configured to control bandwidth, the second conducting element being operatively coupled to the first conducting element via a first connecting element; and

a radiating element configured to transmit and to receive a signal, the radiating element being operatively coupled to the first conducting element via a second connecting element and operatively coupled to the second conducting element via a third connecting element.

19. The structure of claim 18, wherein the radiating element is a metal material.

20. The structure of claim 18, wherein the first connecting element is a one of a plurality of bandwidth tuning pins.

21. The structure of claim 18, wherein the second connecting element is a feeding pin.

22. The structure of claim 18, wherein the third connecting element is a frequency tuning ground pin.

23. The structure of claim 18, wherein the first conducting element is a conducting element having a portion disposed intermediate of the second conducting element and the radiating element.

24. The structure of claim 18, wherein the first conducting element is a conducting element having one of a hole, a slot, a slit, a cavity, a groove, a notch, a passage, and an opening.

25. The structure of claim 18 is integrated into one of a cellular telephone, a personal digital assistant (PDA), and a pager.

26. A method for providing a dual grounded internal antenna comprising the steps of:

providing a first ground plane;

operatively coupling a second ground plane to the first ground plane via a first pin, the first pin one of a plurality of bandwidth tuning pins;

operatively coupling a radiating element to the first ground plane via a second pin; and

operatively coupling the radiating element to the second ground plane with a third pin.

27. The method of claim 26, wherein the step of providing a first ground plane comprises providing a grounded plane configured to control frequency.

28. The method of claim 26, wherein the step of operatively coupling a second ground plane to the first ground plane via a first pin comprises operatively coupling a ground plane configured to control bandwidth to a ground plane configured to control frequency via the first pin.

29. The method of claim 26, wherein the step of operatively coupling a radiating element to the first ground plane via a second pin comprises operatively coupling the radiating element to the first ground plane via a feeding pin.

30. The method of claim 26, wherein the step of operatively coupling the radiating element to the second ground plane with a third pin comprises operatively coupling the radiating element to the second ground plane with a frequency tuning ground pin.

31. The method of claim 26, wherein the step of providing a first ground plane comprises providing a ground plane having a portion disposed intermediate of the second ground plane and the radiating element.

32. The method of claim 26, wherein the step of providing a first ground plane comprises providing a ground plane having one of a hole, a slot, a slit, a cavity, a groove, a notch, a passage, and an opening.