Dual-Feed Dual Band Antenna Assembly and Associated Method

• US 20110163922A1
• Filed: 01/07/2010
• Published: 07/07/2011
• Est. Priority Date: 01/07/2010
• Status: Active Grant

• Current Assignee: Malikie Innovations Limited (Key Patent Innovations Limited)
• Original Assignee: Blackberry Limited
• Inventors: Wang, Dong, Rao, Qinjiang
• Granted Patent: US 8,390,519 B2
• Time in Patent Office: Days
• US Class Current: 343/702
• 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 1/521 reducing the coupling between adjacent antennas
• CPC Class Codes: H01Q 5/342 for different propagation modes H01Q5/314 takes precedence
• 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 9/045 with particular feeding means for circular polarisation H01Q9/0428
• CPC Class Codes: H01Q 9/06 Details
• CPC Class Codes: H01Q 9/42 with folded element, the folded parts being spaced apart a small fraction of the operating wavelength
• CPC Class Codes: Y10T 29/49016 Antenna or wave energy "plumbing" making

Abstract

A dual-feed dual band (DFDB) antenna module comprising a first antenna element disposed on a first planar surface, a second antenna element disposed on a second planar surface, and a third antenna element disposed on a third planar surface, wherein the first, second and third planar surfaces are substantially orthogonal with respect to one another such that two feed ports formed are substantially orthogonal to each other.

Claims

1. A dual-feed dual band (DFDB) antenna module, comprising:

a first feed port coupled to a first transceiver circuit adapted to operate in a first band; and

a second feed port coupled to a second transceiver circuit adapted to operate in said first band and to a receiver circuit adapted to operate in a second band, wherein first and second feed ports are placed in respective planar surfaces that are substantially orthogonal with respect to each other.

2. The DFDB antenna module of claim 1, wherein said first and second feed ports are separated by a distance of approximately 15 mm.

3. The DFDB antenna module of claim 1, wherein said first transceiver circuit comprises Bluetooth-compatible transceiver circuitry adapted to operate in a 2.4 GHz band, the second transceiver circuit comprises WiFi-compatible transceiver circuitry adapted to operate in the 2.4 Gz band and said receiver circuit adapted to operate in a GPS frequency range.

4. The DFDB antenna module of claim 1, wherein said first transceiver circuit comprises WiFi-compatible transceiver circuitry adapted to operate in a 2.4 GHz band, the second transceiver circuit comprises Bluetooth-compatible transceiver circuitry adapted to operate in the 2.4 Gz band and said receiver circuit to operate in a GPS frequency range.

5. The DFDB antenna module of claim 1, wherein said first feed port is electrically connected to an inverted F antenna element disposed on a first planar surface and second feed port is electrically connected to a modified inverted F antenna element disposed on a second planer surface, said first and second planar surfaces being substantially orthogonal with respect to each other at a common edge such that said modified inverted F antenna element and said inverted F antenna element electrically contact each other at said common edge.

6. The DFDB antenna module of claim 5, wherein said second feed port is further electrically connected to a patch antenna element disposed on a third planar surface substantially orthogonal to said first and second planar surfaces such that said patch antenna element is in electrical contact with said modified inverted F antenna element and with said inverted F antenna element at respective common edges.

7. A dual-feed dual band (DFDB) antenna module, comprising:

a first antenna element disposed on a first planar surface;

a second antenna element disposed on a second planar surface; and

a third antenna element disposed on a third planar surface, wherein said first, second and third planar surfaces are substantially orthogonal with respect to one another and wherein said first and second antenna elements are in electrical contact at a first common edge therebetween and said first and third antenna elements are in electrical contact at a second common edge therebetween and said second and third antenna elements are in electrical contact at a third common edge therebetween, and further wherein said second antenna element includes a feed port for coupling to one type of transceiver circuitry adapted to operate in a short-range wireless communications band and said third antenna element includes another feed port for coupling to another type of receiver circuitry adapted to operate in a GPS band.

8. The DFDB antenna module of claim 7, wherein said short-range wireless communications band comprises a 2.4 GHz band and said one type of transceiver circuitry comprises Bluetooth-compliant circuitry.

9. The DFDB antenna module of claim 7, wherein said short-range wireless communications band comprises a 2.4 GHz band and said one type of transceiver circuitry comprises Institute of Electrical and Electronics Engineers (IEEE) 802.11-compliant circuitry.

10. The DFDB antenna module of claim 7, wherein said third antenna element comprises a patch antenna.

11. The DFDB antenna module of claim 10, wherein said patch antenna includes a first rectangular portion and a second rectangular portion coupled together via a neck portion.

12. The DFDB antenna module of claim 11, wherein said first rectangular portion is approximately 15 mm by 10 mm and said second rectangular portion is approximately 10 mm by 15 mm and said neck portion is approximately 2 mm by 5 mm.

13. The DFDB antenna module of claim 7, wherein said second antenna element comprises a modified inverted F antenna strip.

14. The DFDB antenna module of claim 13, wherein said modified inverted F antenna strip is approximately 26 mm long.

15. The DFDB antenna module of claim 7, wherein said first antenna element comprises an inverted F antenna strip.

16. The DFDB antenna module of claim 15, wherein said inverted F antenna strip is approximately 26 mm long.

17. A method for assembling a dual-feed dual band (DFDB) antenna module, said comprising:

providing a first radiating element operable with a first transceiver circuit adapted to operate in a first band;

providing a second radiating element operable with a second transceiver circuit adapted to operate in a second band; and

providing a third radiating element operable with a receiver circuit adapted to operate in said second band, wherein said first, second and third radiating elements are disposed on respective first, second and third planes that are substantially orthogonal to one another and wherein said first and second radiating elements each include a feed port substantially orthogonal to each other.

18. The method of claim 17, wherein said first radiating element is provided as an inverted F antenna.

19. The method of claim 17, wherein said second radiating element is provided as a modified inverted F antenna strip.

20. The method of claim 17, wherein said third radiating element is provided as a patch antenna.

21. A wireless user equipment (UE) device, comprising:

a first transceiver circuit adapted to operate in a first band;

a second transceiver circuit adapted to operate in said first band;

a receiver circuit adapted to operate in a second band; and

a dual-feed dual band (DFDB) antenna module having a first feed port and a second feed port, wherein said first and second feed ports are substantially orthogonal to each other and are respectively coupled to said first and second transceiver circuits, and further wherein said receiver circuit is configured to be coupled to one of said first and second feed ports.

22. The wireless UE device of claim 21, wherein said first transceiver circuit comprises Bluetooth-compatible transceiver circuitry.

23. The wireless UE device of claim 21, wherein said second transceiver circuit comprises WiFi-compatible transceiver circuitry.

24. The wireless UE device of claim 21, wherein said receiver circuit comprises receiver circuitry adapted to operate in a GPS frequency range.

25. The UE device of claim 21, wherein said DFDB antenna module further comprises:

a first antenna element disposed on a first planar surface;

a second antenna element disposed on a second planar surface; and

a third antenna element disposed on a third planar surface, wherein said first, second and third planar surfaces are substantially orthogonal with respect to one another.