Internal antenna and motherboard architecture

• US 7,362,275 B2
• Filed: 02/14/2006
• Issued: 04/22/2008
• Est. Priority Date: 02/14/2006
• Status: Active Grant

• Current Assignee: Qualcomm, Inc.
• Original Assignee: Palm, Inc. (TCL Technology Group Corp.)
• Inventors: Dou, Weiping, Tu, Jerome
• Primary Examiner(s): MANCUSO, HUEDUNG XUAN CAO
• Application Number:
  US11/355,159
• Publication Number:
  US 20070188391A1
• Time in Patent Office: 798 Days
• Field of Search: 343/702, 343/700.MS, 343/846, 343/848, 343/841, 455/90.3, 455/117, 455/575.5
• US Class Current: 343/702
• CPC Class Codes: G06F 1/1616 with folding flat displays, e.g. laptop computers or notebooks having a clamshell configuration, with body parts pivoting to an open position around an axis parallel to the plane they define in closed position
• CPC Class Codes: G06F 1/1624 with sliding enclosures, e.g. sliding keyboard or display
• CPC Class Codes: G06F 1/1681 Details related solely to hinges hinge details related to the transmission of signals or power are classified in G06F1/1683
• CPC Class Codes: G06F 1/1698 the I/O peripheral being a sending/receiving arrangement to establish a cordless communication link, e.g. radio or infrared link, integrated cellular phone details of antennas disposed inside a computer H01Q1/2266
• CPC Class Codes: H01Q 1/2266 disposed inside the computer
• CPC Class Codes: H01Q 1/243 with built-in antennas
• CPC Class Codes: H01Q 1/245 with means for shaping the antenna pattern, e.g. in order to protect user against rf exposure
• CPC Class Codes: H01Q 21/29 Combinations of different interacting antenna units for giving a desired directional characteristic H01Q25/00 takes precedence

Abstract

Various embodiments of an internal antenna and motherboard architecture are described. In one embodiment, a wireless device may include a housing enclosing a first motherboard and a second motherboard. The ground plane of the first motherboard may be coupled to the ground plane of the second motherboard within the housing. The first motherboard and the second motherboard may act as an internal antenna system for the wireless device. Other embodiments are described and claimed.

Claims

1. A wireless device, comprising:

a housing enclosing a first motherboard comprising a first ground plane and a second motherboard comprising a second ground plane, said first ground plane coupled to said second ground plane within said housing; and

an internal antenna system for said wireless device, said internal antenna system comprising said first motherboard and said second motherboard, said first motherboard to act as a first radiating arm of said internal antenna system, and said second motherboard to act as a second radiating arm of said internal antenna system.

2. The wireless device of claim 1, said first ground plane coupled to said second ground plane through a signal source.

3. The wireless device of claim 1, further comprising a third motherboard.

4. The wireless device of claim 3, said third motherboard separated from at least one of said first motherboard and said second motherboard by high impedance traces or components.

5. The wireless device of claim 1, said housing comprising an upper housing and a lower housing connected by a hinge.

6. The wireless device of claim 5, said upper housing comprising said first motherboard, said lower housing comprising said second motherboard.

7. The wireless device of claim 5, said upper housing comprising said first motherboard and said second motherboard.

8. The wireless device of claim 5, said lower housing comprising said first motherboard and said second motherboard.

9. The wireless device of claim 1, wherein said internal antenna system is arranged to reduce radiation in an undesired direction and focus radiation in a desired direction.

10. The wireless device of claim 1, further comprising a cover to direct radiation from said internal antenna system.

11. The wireless device of claim 10, wherein said cover reduces specific absorption rate.

12. An internal antenna system for a wireless device, comprising:

a first motherboard comprising a first ground plane; and

a second motherboard comprising a second ground plane, said first ground plane coupled to said second ground plane, said first motherboard to act as a first radiating arm of said internal antenna system, and said second motherboard to act as a second radiating arm of said internal antenna system.

13. The internal antenna system of claim 12, said first ground plane coupled to said second ground plane through a signal source.

14. The internal antenna system of claim 12, wherein said first motherboard and said second motherboard reduce radiation in an undesired direction and focus radiation in a desired direction.

15. The internal antenna system of claim 12, further comprising a cover to direct radiation from said internal antenna system.

16. The internal antenna system of claim 15, wherein said cover reduces specific absorption rate.

17. A directional internal antenna system for a wireless device, comprising:

a first motherboard;

a second motherboard coupled to said first motherboard, said first motherboard to act as a first radiating arm, said second motherboard to act as a second radiating arm; and

a cover for said wireless device, said cover to direct radiation from said first radiating arm and said second radiating arm.

18. The directional internal antenna system of claim 17, said first motherboard and said second motherboard to reduce radiation in an undesired direction and focus radiation in a desired direction.

19. The directional internal antenna system of claim 17, said cover to reduce specific absorption rate.

20. The directional internal antenna system of claim 17, said first motherboard coupled to said second motherboard through a signal source.