Antenna integrated with metal chassis

• US 9,812,770 B2
• Filed: 12/12/2012
• Issued: 11/07/2017
• Est. Priority Date: 11/01/2012
• Status: Active Grant

• Current Assignee: NVIDIA Corporation
• Original Assignee: NVIDIA Corporation
• Inventors: Gavilan, Joselito, Lee, Warren
• Primary Examiner(s): MANCUSO, HUEDUNG XUAN CAO
• Application Number:
  US13/711,951
• Publication Number:
  US 20140118204A1
• Time in Patent Office: 1,791 Days
• Field of Search: 343754, 343700 MS, 343702
• CPC Class Codes: H01Q 1/243 with built-in antennas
• CPC Class Codes: H01Q 1/50 Structural association of antennas with earthing switches, lead-in devices or lightning protectors
• CPC Class Codes: H01Q 5/371 Branching current paths
• CPC Class Codes: H01Q 5/378 Combination of fed elements with parasitic elements
• CPC Class Codes: H01Q 9/42 with folded element, the folded parts being spaced apart a small fraction of the operating wavelength

Abstract

One aspect provides an antenna. The antenna, in this aspect, includes a grounded segment extending from a metal chassis of an electronic device, and a feed portion coplanar with the grounded segment, the grounded segment and feed portion jointly tuned to cause the antenna to communicate in selected bands of frequencies.

Claims

1. An antenna, comprising:

a grounded segment extending from a metal chassis of an electronic device, wherein the metal chassis includes one or more bands of conductive material bounding its height and width near a side edge thereof, and further wherein at least one of the bands of conductive material includes a window located therein, and further wherein the grounded segment extends into the window; and

a feed portion coplanar with the grounded segment, the grounded segment and feed portion jointly tuned to cause the antenna to communicate in selected bands of frequencies.

2. The antenna recited in claim 1, wherein the feed portion further extends into the window proximate the grounded segment.

3. The antenna recited in claim 2, wherein a plane created by the feed portion and ground segment is substantially parallel to a plane created by a display of the electronic device.

4. The antenna recited in claim 1 wherein the grounded segment is formed from the metal chassis.

5. The antenna recited in claim 1, wherein the grounded segment is attached to the metal chassis.

6. The antenna recited in claim 1, wherein metal chassis includes the side edge that is substantially perpendicular to a plane created by a display of the electronic device, and further wherein the grounded segment extends from the side edge of the metal chassis.

7. The antenna recited in claim 1, wherein the metal chassis is a continuous metal chassis.

8. The antenna recited in claim 1, further including a parasitic grounded portion routed adjacent to the feed portion to cause the antenna to radiate in an additional band of frequencies.

9. The antenna recited in claim 1, wherein the feed portion is extended and folded back to create a slot to cause the antenna to radiate in an additional band of frequencies.

10. The antenna recited in claim 1, wherein the grounded segment, feed portion and selected band of frequencies are a first grounded segment, a first feed portion, and a first selected band of frequencies, and further including:

a second grounded segment extending from the metal chassis of the electronic device; and

a second feed portion coplanar with the second grounded segment, the second grounded segment and second feed portion jointly tuned to cause the antenna to communicate in a second different selected bands of frequencies.

11. An electronic device, comprising:

a metal chassis having one or more bands of conductive material bounding its height and width near a side edge thereof;

storage and processing circuitry positioned within the metal chassis;

input-output devices associated with the storage and processing circuitry and positioned within the metal chassis; and

wireless communications circuitry including an antenna, the antenna including;

a grounded segment extending from the metal chassis, wherein the metal chassis includes a window located in at least one of the one or more bands of conductive material bounding its height and width, and further wherein the grounded segment extends into the window; and

a feed portion coplanar with the grounded segment, the grounded segment and feed portion jointly tuned to cause the antenna to communicate in selected bands of frequencies.

12. The electronic device recited in claim 11, wherein the feed portion further extends into the window proximate the grounded segment.

13. The electronic device recited in claim 12, wherein the input-output device includes a display, and further wherein a plane created by the feed portion and ground segment is substantially parallel to a plane created by the display.

14. The electronic device recited in claim 11, wherein the input-output device includes a display, and further wherein metal chassis includes the side edge that is substantially perpendicular to a plane created by the display, the grounded segment extending from the side edge of the metal chassis.

15. The electronic device recited in claim 11, wherein the metal chassis is a continuous metal chassis.

16. The electronic device recited in claim 11, further including a parasitic grounded portion routed adjacent to the feed portion to cause the antenna to radiate in an additional band of frequencies.

17. The electronic device recited in claim 11, wherein the feed portion is extended and folded back to create a slot to cause the antenna to radiate in an additional band of frequencies.

18. The electronic device recited in claim 11, wherein the grounded segment, feed portion and selected band of frequencies are a first grounded segment, a first feed portion, and a first selected band of frequencies, and further including:

a second grounded segment extending from the metal chassis of the electronic device; and

a second feed portion coplanar with the second grounded segment, the second grounded segment and second feed portion jointly tuned to cause the antenna to communicate in a second different selected bands of frequencies.