Carrier and device

• US 7,642,966 B2
• Filed: 03/14/2008
• Issued: 01/05/2010
• Est. Priority Date: 03/14/2008
• Status: Expired due to Fees

• Current Assignee: Sony Corporation (Sony Group Corp.)
• Original Assignee: Sony Ericsson Mobile Communications USA Incorporated (Sony Group Corp.)
• Inventors: Vance, Scott
• Primary Examiner(s): Ho; Tan
• Application Number:
  US12/048,889
• Publication Number:
  US 20090231199A1
• Time in Patent Office: 662 Days
• Field of Search: 343/700.MS, 343/702
• US Class Current: 343/700.0MS
• CPC Class Codes: H01Q 1/243 with built-in antennas
• CPC Class Codes: H01Q 1/38 formed by a conductive layer on an insulating support patch antennas H01Q9/0407; microstrip dipole antennas H01Q9/065; microstrip slot antennas H01Q13/106; transmission line microstrip antennas H01Q13/206; manufacturing reflecting surfaces using insulating material for supporting the reflecting surface H01Q15/142
• CPC Class Codes: H01Q 5/371 Branching current paths
• CPC Class Codes: H01Q 5/378 Combination of fed elements with parasitic elements

Abstract

A carrier that extends in three mutually orthogonal directions, X, Y and Z, when in use and which comprises a back surface defining a first XY-plane and a side surface defining an XZ-plane, whereby the carrier comprises an antenna pattern. The antenna pattern comprises a wider branch that is located on the back surface of the carrier, and a narrower branch that comprises a first section that extends substantially along the Z-direction of the side surface and a second section that extends substantially in the X-direction of the side surface.

Claims

1. A carrier that extends in three mutually orthogonal directions, X, Y and Z, when in use, and which comprises:

a back surface defining a first XY-plane;

a side surface defining an XZ-plane; and

an antenna pattern, where the antenna pattern comprises;

a wider branch that is located on the back surface of the carrier;

a narrower branch that comprises a first section that extends substantially along the Z-direction of the side surface and a second section that extends substantially in the X-direction of the side surface; and

where the wider branch and the narrower branch extend from a non-grounded common point and where the narrower branch is non-grounded along its length.

2. A carrier according to claim 1, where the second section of the narrower branch has a length that is at least about 40% longer than the length of the first section of the narrower branch.

3. A carrier according to claim 1, where the narrower branch is about 0.5 to about 2.5 mm wide.

4. A carrier according to claim 1, where the wider branch is at least about 4 mm wide.

5. A carrier according to claim 1, where the first section of the narrower branch has a length of at least about 4 mm.

6. A carrier according to claim 1, where the first section of the narrower branch is arranged to extend substantially along an edge of the side surface.

7. A carrier according to claim 1, where the second section of the narrower branch is arranged to extend substantially along the edge of the side surface which is furthest from the back surface.

8. A carrier according to claim 1, where the wider branch and the narrower branch extend from a common point and the common point is located at a distance corresponding to about 30 to about 50% of the total length of the antenna pattern as measured from the antenna pattern'"'"'s feed point to a distal end of the narrower branch via the common point.

9. A carrier according to claim 8, where the narrower branch has a total length, as measured from the feed point via the common point to a distal end of the narrower branch, that is at least about 30% longer than the total length of the wider branch, as measured from the common point to a distal end of the wider branch.

10. A carrier according to claim 1, where the antenna pattern comprises a parasitic element to improve the high bandwidth, gain and matching of the antenna pattern.

11. A carrier according to claim 10, where the parasitic element has a width of about 0.2 to about 0.6 mm.

12. A carrier according to claim 10, where the parasitic element is located on the back surface and extends substantially in the X-direction thereof.

13. A carrier according to claim 1, where a distal end of the wider branch is located within about 20 mm of a distal end of the narrower branch, measured as a shortest distance between the distal end of the wider branch and the distal end of the narrower branch.

14. A carrier according to claim 1, where the carrier is arranged to be mounted on/in a printed circuit board (PCB) or on/in a device.

15. A carrier according to claim 1, where the carrier is a printed circuit board (PCB).

16. A portable electronic device comprising:

a carrier that extends in three mutually orthogonal directions, X, Y and Z, when in use, and which comprises;

a back surface defining a first XY-plane;

a side surface defining an XZ-plane; and

an antenna pattern, where the antenna pattern comprises;

a wider branch that is located on the back surface of the carrier; and

a narrower branch that comprises a first section that extends substantially along the Z-direction of the side surface and a second section that extends substantially in the X-direction of the side surface; and

where the wider branch and the narrower branch extend from a non-grounded common point and where the narrower branch is non-grounded along its length.

17. A portable electronic device according to claim 16, further comprising a user interface front side and a rear side, where the back surface of the carrier is arranged closest to the rear side of the device.

18. A portable electronic device according to claim 16, where the device comprises a mobile telephone.

19. A portable electronic device according to claim 18, where the mobile telephone comprises at least one of a clamshell mobile telephone or a stick-type mobile telephone.

20. A device comprising an antenna pattern, where the antenna pattern comprises:

a feed point;

a wider branch extending from a non-grounded common point; and

a narrower branch extending from the non-grounded common point, where the narrower branch comprises;

a first section that extends substantially along a Z-direction,

a second section that extends substantially along an X-direction,

where the second section is at least about 40% longer than the length of the first section,

where the narrower branch has a total length, as measured from the feed point via the common point to a distal end of the narrower branch that is at least about 30% longer than the total length of the wider branch, as measured from the common point to a distal end of the wider branch; and

where the narrower branch is non-grounded along its length.