Wireless electronic devices including a feed structure connected to a plurality of antennas

Patent metadata

Field	Value
Publication number	US-9825352-B2
Application number	US-201313943388-A
Country	US
Kind code	B2
Filing date	Jul 16, 2013
Priority date	Jun 20, 2013
Publication date	Nov 21, 2017
Grant date	Nov 21, 2017

Abstract

Wireless electronic devices are provided. A wireless electronic device may include a ground plane and a metal perimeter around the ground plane. The metal perimeter may include a first antenna radiating element. The wireless electronic device may include a second antenna radiating element between the ground plane and the metal perimeter. Moreover, the wireless electronic device may include a feed structure connected to the second antenna radiating element and the metal perimeter.

First claim

What is claimed is:

1. A wireless electronic device, comprising:
a ground plane;
a metal perimeter around the ground plane, a bottom end of the metal perimeter comprising a first antenna radiating element;
a second antenna radiating element between the ground plane and the bottom end of the metal perimeter; and
a feed structure connected to the second antenna radiating element and the metal perimeter, wherein the feed structure extends continuously from the second antenna radiating element along a surface of the metal perimeter to a location adjacent a first discrete ground point that directly connects the metal perimeter and the ground plane, and wherein the location is spaced apart from the second antenna radiating element, wherein:
the feed structure comprises a first coaxial feed line physically connected to the first antenna radiating element of the metal perimeter;
a top end of the metal perimeter comprises a third antenna radiating element, the metal perimeter further comprising first and second side portions that extend between the top end and the bottom end;
the wireless electronic device further comprises a first plurality of discrete ground points at a middle of the first side portion of the metal perimeter;
the wireless electronic device further comprises a second plurality of discrete ground points at a middle of the second side portion of the metal perimeter;
the wireless electronic device further comprises a second coaxial feed line that is spaced apart from the first coaxial feed line on a same one of the first side portion or the second side portion of the metal perimeter as the first coaxial feed line and is physically connected to the third antenna radiating element of the metal perimeter;
the second coaxial feed line extends to a location adjacent a second discrete ground point that directly connects the metal perimeter and the ground plane; and
the first and second discrete ground points are both on the same one of the first side portion or the second side portion of the metal perimeter and are included in the first plurality of discrete ground points or the second plurality of discrete ground points.

2. The wireless electronic device of claim 1 , wherein the second antenna radiating element comprises a monopole antenna between the ground plane and the first antenna.

3. The wireless electronic device of claim 2 , wherein the first antenna radiating element comprises a non-planar antenna radiating element of the metal perimeter.

4. The wireless electronic device of claim 1 , further comprising a matching component between the feed structure and the ground plane.

5. The wireless electronic device of claim 4 , wherein the matching component is configured to provide a capacitance of about 0.8 picoFarads (pF) to about 1.5 pF.

6. The wireless electronic device of claim 1 , wherein:
a non-planar portion of the second coaxial feed line is between the ground plane and a non-planar portion of the metal perimeter.

7. The wireless electronic device of claim 1 ,
wherein the coaxial feed line comprises a non-planar portion that is closer to the discrete ground point than to the second antenna radiating element.

8. The wireless electronic device of claim 1 , wherein:
the metal perimeter comprises a non-planar portion comprising at least a portion of the first antenna radiating element;
the feed structure comprises a non-planar portion extending along the non-planar portion of the metal perimeter; and
the wireless electronic device further comprises:
a display screen on the ground plane; and
a transceiver circuit coupled to the first antenna radiating element and configured to provide communications for the wireless electronic device.

9. The wireless electronic device of claim 1 , wherein a portion of the feed structure is both:
between the ground plane and the metal perimeter; and
between the second antenna radiating element and the metal perimeter.

10. A wireless electronic device, comprising:
a ground plane;
a display screen on the ground plane;
a metal perimeter around the ground plane, the metal perimeter comprising a non-planar first antenna radiating element;
a second antenna radiating element between the ground plane and the metal perimeter;
a feed structure connected to the second antenna radiating element and the metal perimeter, wherein the feed structure extends continuously from the second antenna radiating element along a surface of the metal perimeter to a location adjacent a ground point connected to the metal perimeter, wherein the location is spaced apart from the second antenna radiating element; and
a transceiver circuit coupled to the non-planar first antenna radiating element and configured to provide communications for the wireless electronic device, wherein:
the metal perimeter comprises a top end portion, a bottom end portion, and first and second side portions that extend between the top end portion and the bottom end portion;
a first plurality of ground points is at a middle of the first side portion of the metal perimeter;
a second plurality of ground points is at a middle of the second side portion of the metal perimeter;
a portion of the feed structure is spaced apart from an adjacent side portion of the ground plane and extends parallel to the adjacent side portion of the ground plane and parallel to an adjacent one of the first and second side portions of the metal perimeter;
the feed structure comprises a first coaxial feed line physically connected to the non-planar first antenna radiating element of the metal perimeter;
the metal perimeter further comprises a non-planar third antenna radiating element;
the wireless electronic device further comprises a second coaxial feed line that is on the one of first and second side portions of the metal perimeter and is physically connected to the non-planar third antenna radiating element of the metal perimeter; and
the first and second coaxial feed lines are non-overlapping lines, and wherein:
the ground point comprises a first discrete ground point that directly connects the metal perimeter and the ground plane;
the second coaxial feed line extends to a location adjacent a second discrete ground point that directly connects the metal perimeter and the ground plane; and
the first and second discrete ground points are both on the one of the first and second side portions of the metal perimeter and are included in the first plurality of ground points or the second plurality of ground points.

11. The wireless electronic device of claim 10 , wherein:
the ground point comprises a conductor of the first coaxial feed line.

12. The wireless electronic device of claim 10 , wherein the second antenna radiating element comprises a monopole antenna between the ground plane and the non-planar first antenna radiating element.

13. The wireless electronic device of claim 10 , further comprising a matching component between the feed structure and the ground plane, wherein the matching component is configured to provide a capacitance of about 0.8 picoFarads (pF) to about 1.5 pF.

14. The wireless electronic device of claim 10 , wherein the feed structure comprises a non-planar portion extending along a portion of the non-planar first antenna radiating element.

15. The wireless electronic device of claim 8 , wherein the non-planar portion of the feed structure conforms with a shape of the non-planar portion of the metal perimeter.

Assignees

• Sony Corp
• Sony Mobile Communications Inc

Inventors

• Vance Scott
• So Rune

Classifications

• H01Q1/243 Primary

  with built-in antennas · CPC title

• H01Q9/42

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

• H01Q21/30

  Combinations of separate antenna units operating in different wavebands and connected to a common feeder system · CPC title