Carrier and device
View Patent ↗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.
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.