Multiple antenna system

• US 9,124,003 B2
• Filed: 02/21/2013
• Issued: 09/01/2015
• Est. Priority Date: 02/21/2013
• Status: Active Grant

• Current Assignee: Qualcomm, Inc.
• Original Assignee: Qualcomm, Inc.
• Inventors: Jenwatanavet, Jatupum
• Primary Examiner(s): PHAN, THO GIA
• Application Number:
  US13/773,626
• Publication Number:
  US 20140232612A1
• Time in Patent Office: 922 Days
• Field of Search: 343/700.MS, 343/702, 343/825, 343/829, 343/846
• US Class Current: 1/1
• CPC Class Codes: H01Q 1/521 reducing the coupling between adjacent antennas
• CPC Class Codes: H01Q 1/525 between emitting and receiving antennas
• CPC Class Codes: H01Q 9/0421 with a shorting wall or a shorting pin at one end of the element H01Q9/0414 takes precedence
• CPC Class Codes: H01Q 9/42 with folded element, the folded parts being spaced apart a small fraction of the operating wavelength

Abstract

A multiple antenna module suitable for use in small sized mobile computing devices includes at least a first antenna extending beyond a lateral edge of and coplanar with a printed circuit board assembly and connected to the printed circuit board assembly via a first antenna ground contact and a first antenna feed contact. The multiple antenna module also includes a second antenna located proximate to the first antenna and configured in a plane perpendicular to the plane continuing the first antenna and the printed circuit board. The second antenna is connected to the printed circuit board assembly via a second antenna ground contact and a second antenna feed contact in which the second antenna ground contact and second antenna feed contact are connect to the printed circuit between the first antenna ground contact and the first antenna feed contact.

Claims

1. A wireless device, comprising:

a printed circuit board having an edge;

a first antenna extending beyond the edge of and coplanar with the printed circuit board, the first antenna having a first antenna ground contact and a first antenna feed contact connecting the first antenna to the printed circuit board; and

a second antenna positioned perpendicular to the first antenna and connected to the printed circuit board by a second antenna ground contact and a second antenna feed contact,

wherein the second antenna ground contact and the second antenna feed contact are positioned between the first antenna ground contact and the first antenna feed contact.

2. The wireless device of claim 1, wherein the first antenna is configured to transmit and receive signals over a first wireless network.

3. The wireless device of claim 2, wherein the first wireless network is a wireless wide area network (WWAN).

4. The wireless device of claim 1, wherein the second antenna is configured to receive signals from a second wireless network.

5. The wireless device of claim 4, wherein the second wireless network is a global positioning system (GPS) network.

6. The wireless device of claim 1, wherein:

the printed circuit board has dimensions of 34 mm by approximately 35 mm;

the first antenna ground contact is connected to the printed circuit board at a first corner of the printed circuit board and has dimensions of approximately 2 mm in width and extends approximately 5 mm to offset the first antenna beyond the edge of the printed circuit board;

the first antenna feed contact is positioned approximately 12 mm away from the first antenna ground contact and has dimensions of approximately 2 ram in width and extends approximately 5 mm to offset the first antenna beyond the edge of the printed circuit board;

the first antenna comprises;

a first segment having dimensions of approximately 27 mm by approximately 2 mm;

a second segment having dimensions of approximately 2 mm by approximately 1 mm; and

a third segment having dimensions of approximately 34 rum by approximately 2 mm.

7. The wireless device of claim 6, wherein:

the second antenna ground contact is connected to the printed circuit board proximate to the first corner of the printed circuit board and comprises;

a horizontal ground segment having dimensions of approximately 2 mm in width and extends approximately 3 mm to offset the second antenna beyond the edge of the printed circuit board; and

a vertical ground segment having dimensions of approximately 2 mm and extends in a vertical plane to offset the second antenna approximately 3 mm vertically above the plane containing the printed circuit board and the first antenna;

the second antenna feed contact is connected to the printed circuit board proximate to the first corner of the printed circuit board and comprises;

a horizontal feed segment having dimensions of approximately 2 mm in width and extends approximately 3 mm to offset the second antenna beyond the edge of the printed circuit board; and

a vertical feed segment having dimensions of approximately 2 mm and extends in a vertical plane to offset the second antenna approximately 3 mm vertically above the plane containing the printed circuit board and the first antenna; and

the second antenna comprises a single segment having dimensions of approximately 2 mm by 24 mm.

8. The wireless device of claim 1, wherein the first antenna is configured in length to transmit and receive radio signals over a first wireless network having frequency bands of 824 MHz to 960 MHz and 1710 MHz to 2200 MHz.

9. The wireless device of claim 1, wherein the second antenna is configured in length to receive radio signals of a second wireless network in a frequency band of 1565 MHz to 1610 MHz.

10. The wireless device of claim 1, further comprising a multiple antenna module housing configured to house the first antenna, the second antenna, the first antenna ground contact, first antenna feed contact, the second antenna ground contact and the second antenna feed contact.

11. The wireless device of claim 1, wherein the first antenna is a planar inverted F antenna (PIFA) and the second antenna is a PIFA.

12. The wireless device of claim 1, wherein the printed circuit board has a shape selected from the group consisting of a circle, a semi-circle, a polygon and an arbitrary shape.

13. The wireless device of claim 12, wherein the shape of the first antenna and the second antenna conforms to the shape of the printed circuit board.

14. A compact multiple antenna module, comprising:

a first antenna configured to extend beyond a lateral edge of and coplanar with a printed circuit board, the first antenna having a first antenna ground contact and a first antenna feed contact configured to be connected to the printed circuit board; and

a second antenna configured perpendicular to the first antenna and the second antenna having a second antenna ground contact and a second antenna feed contact configured to be connected to the printed circuit board,

wherein the second antenna ground contact and the second antenna feed contact are positioned between the first antenna ground contact and the first antenna feed contact.

15. The compact multiple antenna module of claim 14, wherein the first antenna is configured to transmit and receive signals over a first wireless network.

16. The compact multiple antenna module of claim 15, wherein the first wireless network is a wireless wide area network (WWAN).

17. The compact multiple antenna module of claim 14, wherein the second antenna is configured to receive signals from a second wireless network.

18. The compact multiple antenna module of claim 17, wherein the second wireless network is a global positioning system (GPS) network.

19. The compact multiple antenna module of claim 14, further comprising a housing, wherein the first antenna and the second antenna are positioned within the housing.

20. The compact multiple antenna module of claim 19, wherein the housing, the first antenna ground contact, the first antenna feed contact, the second antenna ground contact, and the second antenna feed contact are configured to be connected to the printed circuit board by a quick connection.