Single element dual-feed antennas and an electronic device including the same

• US 9,595,759 B2
• Filed: 01/21/2014
• Issued: 03/14/2017
• Est. Priority Date: 01/21/2014
• Status: Active Grant

• Current Assignee: NVIDIA Corporation
• Original Assignee: NVIDIA Corporation
• Inventors: Oh, Sung Hoon, Gavilan, Joselito, Lee, Warren
• Primary Examiner(s): Levi, Dameon E
• Assistant Examiner(s): LINDGREN BALTZELL, ANDREA J
• Application Number:
  US14/160,277
• Publication Number:
  US 20150207228A1
• Time in Patent Office: 1,148 Days
• US Class Current: 1/1
• CPC Class Codes: H01Q 1/243 with built-in antennas
• CPC Class Codes: H01Q 5/35 using two or more simultaneously fed points
• CPC Class Codes: H01Q 7/00 Loop antennas with a substantially uniform current distribution around the loop and having a directional radiation pattern in a plane perpendicular to the plane of the loop
• CPC Class Codes: H01Q 9/42 with folded element, the folded parts being spaced apart a small fraction of the operating wavelength

Abstract

Provided is an antenna. The antenna, in this aspect, includes an inverted-F GPS antenna structure, the inverted-F GPS antenna structure embodying a GPS feed element, a GPS extending arm, and a ground element. The antenna, in this aspect, further includes a loop WiFi antenna structure, the loop WiFi antenna structure embodying a WiFi feed element, the ground element, and a WiFi connecting arm coupling the WiFi feed element to the ground element. In this particular aspect, the ground element is located between the GPS feed element and the WiFi feed element.

Claims

1. An antenna, comprising:

an inverted-F GPS antenna structure, the inverted-F GPS antenna structure embodying a first GPS feed element, a GPS extending arm, and a ground element; and

a loop WiFi antenna structure, the loop WiFi antenna structure embodying a second different WiFi feed element, the ground element, and a WiFi connecting arm coupling the second different WiFi feed element to the ground element, wherein the ground element is located between the first GPS feed element and the second different WiFi feed element.

2. The antenna as recited in claim 1, wherein the GPS extending arm folds over at least a portion of the loop WiFi antenna structure.

3. The antenna as recited in claim 1, wherein the GPS extending arm folds over at least a portion of the WiFi connecting arm.

4. The antenna as recited in claim 3, wherein the GPS extending arm folds over the WiFi connecting arm by a distance (d) of at least about 5 mm.

5. The antenna as recited in claim 1, wherein the inverted-F GPS antenna structure and the loop WiFi antenna structure are formed from a single conductive element.

6. The antenna as recited in claim 1, wherein an isolation between the inverted-F GPS antenna structure and the loop WiFi antenna structure at a 1575-1610 MHz GPS band and a 2400-2480 MHz WiFi band is at least about −

12 dB.

7. The antenna as recited in claim 1, wherein an isolation between the inverted-F GPS antenna structure and the loop WiFi antenna structure at a 1575-1610 MHz GPS and GLONASS band and a 2400-2480 MHz WiFi band is at least about −

15 dB.

8. The antenna as recited in claim 7, wherein isolation between the inverted-F GPS antenna structure and the loop WiFi antenna structure at the 1575-1610 MHz GPS and GLONASS band is at least about −

24 dB.

9. The antenna as recited in claim 1, wherein the loop WiFi antenna structure also functions as a Bluetooth antenna structure.

10. The antenna as recited in claim 1, wherein the inverted-F GPS antenna structure and the loop WiFi antenna structure are located within a volume of less than about 1.5 cm³.

11. An electronic device, comprising:

storage and processing circuitry;

input-output devices associated with the storage and processing circuitry; and

wireless communications circuitry including an antenna, the antenna including;

an inverted-F GPS antenna structure, the inverted-F GPS antenna structure embodying a first GPS feed element, a GPS extending arm, and a ground element; and

a loop WiFi antenna structure, the loop WiFi antenna structure embodying a second different WiFi feed element, the ground element, and a WiFi connecting arm coupling the second different WiFi feed element to the ground element, wherein the ground element is located between the first GPS feed element and the second different WiFi feed element.

12. The electronic device as recited in claim 11, wherein the GPS extending arm folds over at least a portion of the loop WiFi antenna structure.

13. The electronic device as recited in claim 11, wherein the GPS extending arm folds over at least a portion of the WiFi connecting arm.

14. The electronic device as recited in claim 13, wherein the GPS extending arm folds over the WiFi connecting arm by a distance (d) of at least about 5 mm.

15. The electronic device as recited in claim 11, wherein the inverted-F GPS antenna structure and the loop WiFi antenna structure are formed from a single conductive element.

16. The electronic device as recited in claim 11, wherein an isolation between the inverted-F GPS antenna structure and the loop WiFi antenna structure at a 1575-1610 MHz GPS and GLONASS band and a 2400-2480 MHz WiFi band is at least about −

12 dB.

17. The electronic device as recited in claim 11, wherein an isolation between the inverted-F GPS antenna structure and the loop WiFi antenna structure at a 1575-1610 MHz GPS and GLONASS band and a 2400-2480 MHz WiFi band is at least about −

15 dB.

18. The electronic device as recited in claim 17, wherein isolation between the inverted-F GPS antenna structure and the loop WiFi antenna structure at the 1575-1610 MHz GPS band is at least about −

24 dB.

19. The electronic device as recited in claim 11, wherein the inverted-F GPS antenna structure and the loop WiFi antenna structure are located within a volume of less than about 1.5 cm³.

20. The electronic device of claim 11, wherein the storage and processing circuitry, input-output devices, and wireless communications circuitry are positioned within a conductive chassis, and further wherein the ground element electrically connects to the conductive chassis.