Antennas integrated with metallic display covers of computing devices

• US 20040257283A1
• Filed: 06/19/2003
• Published: 12/23/2004
• Est. Priority Date: 06/19/2003
• Status: Abandoned Application

• Current Assignee: Lenovo Singapore Pte Limited (Lenovo Group Ltd.)
• Original Assignee: International Business Machines Corporation
• Inventors: Asano, Takeshi, Lee, Peter, Gaucher, Brian Paul, Liu, Duixian, Fujio, Shohhei, Masuda, Kazuo
• Application Number:
  US10/465,684
• Publication Number:
  US 20040257283A1
• Time in Patent Office: Days
• US Class Current: 343/702
• CPC Class Codes: H01Q 1/243 with built-in antennas
• CPC Class Codes: H01Q 21/28 Combinations of substantially independent non-interacting antenna units or systems multiple beam H01Q25/00
• CPC Class Codes: H01Q 5/378 Combination of fed elements with parasitic elements
• 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

Antennas for use with computing devices such as laptop computers. In one embodiment, the antennas are integrally formed on a metallic covering of a computing device. In another embodiment, the antennas are integrally formed on a metallic cover of a display unit of a laptop device. For instance, one or more antennas are integrally formed on one or more of the bent edges (sidewalls) of the metallic cover of a display unit (i.e., sides of the cover that are perpendicular to the plane of an LCD unit). In other embodiments, one or more antennas are integrally formed on the metallic cover of the display unit in areas between the LCD and the sidewalls.

Claims

1. An antenna that is integrally formed on with a metallic cover of a computing device.

2. The antenna of claim 1, wherein the antenna is a single-band antenna having a resonant frequency in a frequency band.

3. The antenna of claim 2, wherein the antenna comprises a slot element.

4. The antenna of claim 2, wherein the antenna comprises an inverted-F element.

5. The antenna of claim 2, wherein the antenna comprises at least 2 slot elements.

6. The antenna of claim 1, wherein the antenna is a dual-band antenna comprising:

a first element having a first resonant frequency in a first frequency band; and

a second element having a second resonant frequency in a second frequency band.

7. The antenna of claim 6, wherein the first element is connected to a signal feed.

8. The antenna of claim 6, wherein the first frequency band is about 2.4 GHz to about 2.5 GHz, and wherein the second frequency band is about 5.15 GHz to about 5.35 GHz.

9. The antenna of claim 6, wherein the first element comprises an inverted-F element and the second element comprises a slot element.

10. The antenna of claim 6, wherein the first element comprises an inverted-F element and the second element comprises an inverted L element.

11. The antenna of claim 6, wherein the first element comprises a slot element and the second element comprises a slot element.

12. The antenna of claim 6, wherein the first element comprises a slot element and the second element comprises an inverted-L element.

13. The antenna of claim 1, wherein the antenna is a dual-band antenna comprising 2 or more slot elements.

14. The antenna of claim 1, wherein the antenna is a tri-band antenna comprising:

a first element having a first resonant frequency in a first frequency band;

a second element having a second resonant frequency in a second frequency band; and

a third element having a third resonant frequency in a third frequency band.

15. The antenna of claim 14, wherein the first, second and third elements are slot elements.

16. The antenna of claim 15, wherein the three slot elements are formed adjacent each other and wherein a center slot element is connected to a signal feed.

34. The antenna of claim 1, wherein one or more radiating elements of the antenna are formed from a portion of the metallic cover.

17. A computing device, comprising:

a display unit comprising a display screen and a metallic display cover; and

an antenna that is integrally formed with the metallic cover of the display unit.

18. The device of claim 17, wherein metallic display cover comprises first sidewalls that are perpendicular to a plane of the display screen and second sidewalls that are parallel to the plane of the display screen, and wherein the antenna is integrally formed in one of the first or second sidewalls.

19. The antenna of claim 17, wherein the antenna is a single-band antenna having a resonant frequency in a frequency band.

20. The antenna of claim 19, wherein the antenna comprises a slot element.

21. The antenna of claim 19, wherein the antenna comprises an inverted-F element.

22. The antenna of claim 19, wherein the antenna comprises at least 2 slot elements.

23. The antenna of claim 17, wherein the antenna is a dual-band antenna comprising:

a first element having a first resonant frequency in a first frequency band; and

a second element having a second resonant frequency in a second frequency band.

24. The antenna of claim 23, wherein the first element is connected to a signal feed.

25. The antenna of claim 23, wherein the first frequency band is about 2.4 GHz to about 2.5 GHz, and wherein the second frequency band is about 5.15 GHz to about 5.35 GHz.

26. The antenna of claim 23, wherein the first element comprises an inverted-F element and the second element comprises a slot element.

27. The antenna of claim 23, wherein the first element comprises an inverted-F element and the second element comprises an inverted L element.

28. The antenna of claim 23, wherein the first element comprises a slot element and the second element comprises a slot element.

29. The antenna of claim 23, wherein the first element comprises a slot element and the second element comprises an inverted-L element.

30. The antenna of claim 17, wherein the antenna is a dual-band antenna comprising 2 or more slot elements.

31. The antenna of claim 17, wherein the antenna is a tri-band antenna comprising:

a first element having a first resonant frequency in a first frequency band;

a second element having a second resonant frequency in a second frequency band; and

a third element having a third resonant frequency in a third frequency band.

32. The antenna of claim 31, wherein the first, second and third elements are slot elements.

33. The antenna of claim 32, wherein the three slot elements are formed adjacent each other and wherein a center slot element is connected to a signal feed.

35. The device of claim 17, wherein one or more radiating elements of the antenna are formed from a portion of the metallic cover.

36. A wireless device, comprising:

a metallic device cover; and

an antenna having one or more radiating elements that are formed from a portion of the metallic display cover.