Antenna Arrangement

• US 20100090909A1
• Filed: 12/19/2006
• Published: 04/15/2010
• Est. Priority Date: 12/19/2006
• Status: Active Grant

• Current Assignee: Nokia Technologies Oy (Nokia Corporation)
• Original Assignee: Nokia Technologies Oy (Nokia Corporation)
• Inventors: Ella, Juha Sakari
• Granted Patent: US 9,680,210 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 21/30 Combinations of separate antenna units operating in different wavebands and connected to a common feeder system
• CPC Class Codes: H01Q 9/40 Element having extended radiating surface
• CPC Class Codes: H01Q 9/42 with folded element, the folded parts being spaced apart a small fraction of the operating wavelength

Abstract

An antenna arrangement including a first antenna element connected to a first feed point and having a first electrical length; a second antenna element connected to a second feed point, different to the first feed point, and including: a first portion which extends from the second feed point and has a second electrical length, similar to the first electrical length, which enables the first portion to electromagnetically couple with the first antenna element, and a second portion which extends from the second feed point and has a third electrical length, different to the first electrical length of the first antenna element and to the second electrical length of the first portion.

Claims

1. An antenna arrangement comprising:

a first antenna element connected to a first feed point and having a first electrical length;

a second antenna element connected to a second feed point, different to the first feed point, and including;

a first portion which extends from the second feed point and has a second electrical length, similar to the first electrical length, which enables the first portion to electromagnetically couple with the first antenna element, and

a second portion which extends from the second feed point and has a third electrical length, different to the first electrical length of the first antenna element and to the second electrical length of the first portion.

2. An antenna arrangement as claimed in claim 1, wherein at least a part of the first portion of the second antenna element extends from the second feed point towards the first antenna element.

3. An antenna arrangement as claimed in claim 1, wherein at least a part of the first portion of the second antenna element is oriented so that it is substantially parallel to the first antenna element.

4. An antenna arrangement as claimed in claim 1, wherein the first antenna element is physically connected to only the first feed point.

5. An antenna arrangement as claimed in claim 4, wherein the first antenna element is a planar inverted L antenna having a resonant mode at λ

/4.

6. An antenna arrangement as claimed in claim 1, wherein the second antenna element is physically connected to only the second feed point.

7. An antenna arrangement as claimed in claim 6, wherein the second antenna element is a planar inverted L antenna having a resonant mode at λ

/4.

8. An antenna arrangement as claimed in claim 1, wherein the first antenna element is connectable to a first transceiver via the first feed point and the second antenna element is connectable to a second transceiver via the second feed point, the first transceiver being different to the second transceiver.

9. An antenna arrangement as claimed in claim 1, wherein the first antenna element and the second antenna element are connectable to a single transceiver via the first feed point and the second feed point respectively.

10. An antenna arrangement as claimed in claim 1, wherein the first antenna element is operable to resonate within a first resonant frequency band and the first portion of the second antenna element is operable to resonate within a second resonant frequency band, wherein the first resonant frequency band and the second resonant frequency band have at least partially overlapping frequencies.

11. An antenna arrangement as claimed in claim 1, wherein the second portion of the second antenna element is operable to resonate within a third resonant frequency band, different to the first resonant frequency band and to the second resonant frequency band.

12. A device comprising an antenna arrangement as claimed in claim 1.

13. A portable electronic device comprising an antenna arrangement as claimed in claims 1.

14. (canceled)

15. (canceled)

16. A method comprising:

providing a first antenna element, of an antenna arrangement, connected to a first feed point and having a first electrical length;

providing a second antenna element, of an antenna arrangement, connected to a second feed point, different to the first feed point, and including;

a first portion which extends from the second feed point and has a second electrical length, similar to the first electrical length, which enables the first portion to electromagnetically couple with the first antenna element, and

a second portion which extends from the second feed point and has a third electrical length, different to the first electrical length of the first antenna element and to the second electrical length of the first portion.

17. A method as claimed in claim 16, wherein at least a part of the first portion of the second antenna element extends from the second feed point towards the first antenna element.

18. A method as claimed in claim 16, wherein at least a part of the first portion of the second antenna element is oriented so that it is substantially parallel to the first antenna element.

19. A method as claimed in claim 16, wherein the first antenna element is physically connected to only the first feed point.

20. A method as claimed in claim 16, wherein the second antenna element is physically connected to only the second feed point.

21. A method as claimed in claim 16, wherein the first antenna element is connectable to a first transceiver via the first feed point and the second antenna element is connectable to a second transceiver via the second feed point, the first transceiver being different to the second transceiver.

22. A method as claimed in claim 16, wherein the first antenna element and the second antenna element are connectable to a single transceiver via the first feed point and the second feed point respectively.