Antennas in frames for display panels

• US 11,005,154 B2
• Filed: 04/11/2017
• Issued: 05/11/2021
• Est. Priority Date: 04/11/2017
• Status: Active Grant

• Current Assignee: Hewlett-Packard Development Company, L.P. (HP Inc.)
• Original Assignee: Hewlett-Packard Development Company, L.P. (HP Inc.)
• Inventors: Hung, Kuan-Jung, Liu, Chun-Chih
• Primary Examiner(s): Nguyen, Hoang V
• Application Number:
  US16/603,612
• Publication Number:
  US 20200136230A1
• Time in Patent Office: 1,491 Days
• 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: H01Q 1/2266 disposed inside the computer
• CPC Class Codes: H01Q 1/48 Earthing means; Earth screens; Counterpoises
• CPC Class Codes: H01Q 5/385 Two or more parasitic elements
• 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 9/42 with folded element, the folded parts being spaced apart a small fraction of the operating wavelength

Abstract

The present subject matter describes positioning of an antenna inside a frame for a display panel of an electronic device. The antenna comprises a ground plate extending along a side of the frame, a substrate positioned on the ground plate, and two loop antenna elements formed on the substrate, both ends of each of the two loop antenna elements being connected to the ground plate.

Claims

1. A frame for a display panel of an electronic device, comprising:

an antenna positioned, inside the frame, along a side of the frame, wherein the side is one of a first side through which the frame is couplable to a base unit of the electronic device and a second side opposite to the first side, the antenna comprising;

a ground plate extending along the side of the frame;

a substrate positioned on the ground plate; and

two loop antenna elements formed on the substrate, both ends of each of the two loop antenna elements being connected to the ground plate, the two loop antenna elements having multiple strip segments extending in different directions.

2. The frame as claimed in claim 1, wherein the antenna comprises a feeding monopole formed on the substrate between the two loop antenna elements.

3. The frame as claimed in claim 2, wherein ends of a first loop antenna element, of the two loop antenna elements, are connected to the ground plate on one side of the feeding monopole, and ends of a second loop antenna element, of the two loop antenna elements, are connected to the ground plate on another side of the feeding monopole.

4. The frame as claimed in claim 2, wherein the antenna comprises a first parasitic monopole formed on the substrate, the first parasitic monopole having an end connected to the ground plate, between the feeding monopole and one of the two loop antenna elements, wherein the first parasitic monopole extends in a direction away from the feeding monopole and towards ends of the one of the two loop antenna elements.

5. The frame as claimed in claim 4, wherein the antenna comprises a second parasitic monopole formed on the substrate, the second parasitic monopole having an end connected to the ground plate, between the feeding monopole and the other of the two loop antenna elements, wherein the second parasitic monopole extends in a direction away from the feeding monopole and towards ends of the other of the two loop antenna elements.

6. The frame as claimed in claim 2, wherein the antenna comprises a first parasitic monopole formed on the substrate, the first parasitic monopole having an end connected to the ground plate, between the feeding monopole and one of the two loop antenna elements, wherein the first parasitic monopole extends in a direction away from ends of the one of the two loop antenna elements and towards the feeding monopole.

7. The frame as claimed in claim 6, wherein the antenna comprises a second parasitic monopole formed on the substrate, the second parasitic monopole having an end connected to the ground plate, between the feeding monopole and the other of the two loop antenna elements, wherein the second parasitic monopole extends in a direction away from ends of the other of the two loop antenna elements and towards the feeding monopole.

8. A display unit of an electronic device, comprising:

a display panel;

a frame bordering the display panel;

an antenna positioned, inside the frame, along a side of the frame, wherein the side is one of a first side through which the frame is couplable to a base unit of the electronic device and a second side opposite to the first side, the antenna comprising;

a ground plate extending along the side;

a substrate positioned on the ground plate, the substrate having an excitation surface facing the side, such that radiations from the excitation surface are emitted out through a front surface of the side;

a first loop antenna element formed on the excitation surface of the substrate, the first loop antenna element having multiple strip segments extending in different directions, two ends of the first loop antenna element connected to the ground plate; and

a second loop antenna element formed on the excitation surface of the substrate, the second loop antenna element having multiple strip segments extending in different directions, two ends of the second loop antenna element connected to the ground plate.

9. The display unit as claimed in claim 8, wherein the antenna comprises a feeding monopole formed on the excitation surface of the substrate between the first loop antenna element and the second loop antenna element.

10. The display unit as claimed in claim 9, wherein the antenna comprises a first parasitic monopole formed on the substrate, the first parasitic monopole having an end connected to the ground plate, between the feeding monopole and the first loop antenna element, wherein the first parasitic monopole extends in a direction away from the feeding monopole and towards the two ends of the first loop antenna element.

11. The display unit as claimed in claim 10, wherein the antenna comprises a second parasitic monopole formed on the substrate, the second parasitic monopole having an end connected to the ground plate, between the feeding monopole and the second loop antenna element, wherein the second parasitic monopole extends in a direction away from the feeding monopole and towards the two ends of the second loop antenna element.

12. The display unit as claimed in claim 9, wherein the antenna comprises a first parasitic monopole formed on the substrate, the first parasitic monopole having an end connected to the ground plate, between the feeding monopole and the first loop antenna element, wherein the first parasitic monopole extends in a direction away from the two ends of the first loop antenna element and towards the feeding monopole.

13. The display unit as claimed in claim 12, wherein the antenna comprises a second parasitic monopole formed on the substrate, the second parasitic monopole having an end connected to the ground plate, between the feeding monopole and the second loop antenna element, wherein the second parasitic monopole extends in a direction away from the two ends of the second loop antenna element and towards the feeding monopole.

14. An electronic device comprising:

a base unit for housing a keyboard;

a display panel;

a frame encasing the display panel, wherein the frame is coupled to the base unit through a coupling element; and

an antenna positioned, inside the frame, along an edge of the frame, the edge being parallel to an axis of rotation of the coupling element, the antenna comprising;

a ground plate formed at the edge of the frame;

a substrate positioned on the ground plate;

a first loop antenna element formed on the substrate, the first loop antenna element having multiple strip segments extending in different directions, two ends of the first loop antenna element connected to the ground plate; and

a second loop antenna element formed on the substrate, the second loop antenna element having multiple strip segments extending in different directions, two ends of the second loop antenna element connected to the ground plate.

15. The electronic device as claimed in claim 14, wherein the antenna comprises a feeding monopole formed on the substrate between the first loop antenna element and the second loop antenna element, wherein the two ends of the first loop antenna element is grounded on one side of the feeding monopole and the two ends of the second loop antenna element is grounded on the other side of the feeding monopole.