Antenna incorporated into device hinge and method

Patent metadata

Field	Value
Publication number	US-10141630-B2
Application number	US-201715477054-A
Country	US
Kind code	B2
Filing date	Apr 1, 2017
Priority date	Apr 1, 2017
Publication date	Nov 27, 2018
Grant date	Nov 27, 2018

Abstract

A method and apparatus for switching between two antenna elements in an electronic device having a hinge. A rotating element within the hinge has a coupling or contact brush that extends into contact with a first contact element connected to a first antenna element. Rotation of the hinge moves the coupling of coupled communication with the first contact element and into coupled communication with a second contact element, that connects to a second antenna element. The first and second antenna elements are provided on a hinge of an electronic device that may be moved from a closed position to a 360 degree open position or tablet position. The movement of the hinge switches between the two antenna elements to avoid blocking of the connected antenna(s) by the body of the electronic device.

First claim

The invention claimed is:

1. An antenna for a device having a hinge connecting first and second housing portions, comprising:
a first antenna element mounted on the hinge in a position to expose the first antenna element when the first and second housing portions are in a first position;
a second antenna element mounted on the hinge in a position to expose the second antenna element when the first and second housing portions are in a second position; and
an antenna switch in the hinge and operable to connect the first antenna element to at least one of a transmitting circuit and a receiving circuit of the device at a first hinge position, the antenna switch being operable to connect the second antenna element to at least one of the transmitting circuit and the receiving circuit at a second hinge position, the antenna switch being operable to switch between the first and second antenna elements when the hinge is moved between the first and second hinge positions.

2. An antenna as claimed in claim 1 , wherein the antenna switch includes:
a first contact element electrically connected to the first antenna element,
a second contact element electrically connected to the second antenna element; and
a coupling mounted and configured to selectively couple to either the first contact element or the second contact element depending on a position of the hinge.

3. An antenna as claimed in claim 2 , wherein the first and second contact elements together form an cylindrical interior contact surface, and wherein the coupling is disposed to couple with the interior contact surface.

4. An antenna as claimed in claim 3 , wherein the first and second contact elements define gaps between ends of the respective first and second contact elements.

5. An antenna as claimed in claim 4 , wherein the gaps between the first and second contact elements include non-conductive material shaped to conform to the cylindrical interior contact surface.

6. An antenna as claimed in claim 3 , further comprising:
a rotating element disposed within the cylindrical interior contact surface, the coupling rotating into coupling position with the cylindrical interior contact surface.

7. An antenna as claimed in claim 6 , further comprising:
a sleeve disposed between the rotating element and the cylindrical interior contact surface.

8. An antenna as claimed in claim 7 , wherein the sleeve defines an opening, and wherein the coupling includes a contact brush extending through the opening.

9. An antenna as claimed in claim 6 , wherein the rotating element includes a cylindrical rotating element disposed coaxially of an axis of rotation of the hinge.

10. An antenna as claimed in claim 2 , wherein the first and second contact elements are fixed in position relative to the first housing portion, and wherein the coupling is fixed in position relative to the second housing portion, the coupling on one hand and the first and second contact elements on another hand rotating relative to one another when the first and second housing portions are hingedly moved relative to one another.

11. An antenna as claimed in claim 2 , further comprising:
first and second connection flanges extending from the respective first and second contact elements, the first and second connection flanges being in electrical contact with the respective first and second antenna elements.

12. An antenna as claimed in claim 2 , wherein the coupling includes a contact brush that is spring loaded to urge the contact brush into electrical contact with the first and second contact elements.

13. An antenna as claimed in claim 2 , wherein the coupling includes a contact brush that extends radially from an axis of the hinge.

14. An antenna as claimed in claim 2 , wherein the coupling includes a contact brush that extends at an angle to a radius of the axis of the hinge.

15. An antenna as claimed in claim 1 , wherein the hinge is a two axis hinge, and further comprising:
a hinge body extending between the two axes of the two axis hinge;
wherein the first and second antenna elements are mounted on opposite sides of the hinge body.

16. An antenna as claimed in claim 15 , wherein the first and second antenna elements are parallel to one another on the hinge body.

17. An antenna for a device having a hinge connecting first and second housing portions, the hinge including a dual axle hinge having a hinge body connected between the two hinge axles, comprising:
a first antenna element mounted on the hinge body in a position to expose the first antenna element when the first and second housing portions are in a first position;
a second antenna element mounted on the hinge body in a position to expose the second antenna element when the first and second housing portions are in a second position; and
an antenna switch in the hinge and operable to connect the first antenna element to at least one of a transmitting circuit and a receiving circuit of the device at a first hinge position, the antenna switch being operable to connect the second antenna element to at least one of the transmitting circuit and the receiving circuit at a second hinge position, the antenna switch being operable to switch between the first and second antenna elements when the hinge is moved between the first and second hinge positions, the antenna switch being provided at a first axle of the dual axle hinge, the antenna switch including:
a first contact element electrically connected to the first antenna element,
a second contact element electrically connected to the second antenna element, the first and second contact elements together form an cylindrical interior contact surface; and
a coupling mounted and configured to selectively couple with either the first contact element or the second contact element depending on a position of the hinge, coupling is disposed to contact the interior contact surface, coupling includes a contact brush that is spring loaded to urge the contact brush into electrical contact with the first and second contact elements;
a rotating element disposed within the cylindrical interior contact surface, the contact brush extending from the rotating element into contact with the cylindrical interior contact surface;
a sleeve disposed between the rotating element and the cylindrical interior contact surface.

Assignees

• Intel Corp

Inventors

• Kumar Praveen

Classifications

• G06F1/1698

  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 title

• G06F1/1681

  Details related solely to hinges (hinge details related to the transmission of signals or power are classified in G06F1/1683) · CPC title

• H01Q9/42

  with folded element, the folded parts being spaced apart a small fraction of the operating wavelength · CPC title

• H01Q1/2266 Primary

  disposed inside the computer · CPC title

• H01Q3/24

  varying the orientation by switching energy from one active radiating element to another, e.g. for beam switching · CPC title