Antenna Arrangement and a Portable Radio Communication Device Comprising Such An Antenna Arrangement

• US 20120112980A1
• Filed: 11/03/2011
• Published: 05/10/2012
• Est. Priority Date: 11/03/2010
• Status: Abandoned Application

• Current Assignee: Samsung Electronics Co. Ltd.
• Original Assignee: Samsung Electronics Co. Ltd.
• Inventors: Kaikkonen, Andrei, Lindberg, Peter, Killander, Lena Apelskog, Chacinski, Mare
• Application Number:
  US13/288,787
• Publication Number:
  US 20120112980A1
• Time in Patent Office: Days
• US Class Current: 343/867
• CPC Class Codes: H01Q 1/2225 used in active tags, i.e. provided with its own power source or in passive tags, i.e. deriving power from RF signal
• CPC Class Codes: H01Q 21/28 Combinations of substantially independent non-interacting antenna units or systems multiple beam H01Q25/00
• 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 9/0407 Substantially flat resonant element parallel to ground plane, e.g. patch antenna dipole H01Q9/285; monopole H01Q9/40

Abstract

According to various aspects, exemplary embodiments are provided of multiple-turn loop antenna arrangements or assembly. An exemplary embodiment of an antenna assembly generally includes a multiple-turn loop element arranged in a first layer and a planar element arranged in a second layer. The first and second layers are arranged in parallel and the multiple-turn loop element is arranged on top of the planar element. The multiple-turn loop element has a thickness in the order of or more than the skin depth at a first frequency band for the multiple-turn loop antenna and the planar element has a thickness in the order of or less than the skin depth at a second higher frequency band.

Claims

1. A multiple-turn loop antenna arrangement comprising a multiple-turn loop element arranged in a first layer and a planar element arranged in a second layer, wherein said first and second layers are arranged in parallel and said multiple-turn loop element is arranged on top of said planar element, and wherein said multiple-turn loop element has a thickness in the order of or more than the skin depth at a first frequency band for said multiple-turn loop element and said planar element has a thickness in the order of or less than the skin depth at a second higher frequency band.

2. The multiple-turn loop antenna arrangement according to claim 1, wherein said planar element comprises a surface facing said multiple-turn loop element, wherein all turns of said multiple-turn loop element are arranged within said surface of said planar element.

3. The multiple-turn loop antenna arrangement according to claim 1, wherein said planar element comprises a surface facing said multiple-turn loop element, wherein a part of said multiple-turn loop element is arranged within said surface of said planar element and a part of said multiple-turn loop element is arranged outside said surface of said planar element.

4. The multiple-turn loop antenna arrangement according to claim 1, comprising a dielectric layer positioned between said multiple-turn loop element and said planar element.

5. The multiple-turn loop antenna arrangement according to claim 1, wherein said first frequency band is for NFC.

6. The multiple-turn loop antenna arrangement according to claim 1, wherein said second frequency band is for BT, LTE, WCDMA, GSM or GPS.

7. The multiple-turn loop antenna arrangement according to claim 1, wherein said thickness of said planar element is in the order of or less than 1/10 of the skin depth at said second frequency band.

8. The multiple-turn loop antenna arrangement according to claim 1, wherein thickness of the multiple-turn loop element is in the order of or more than the skin depth at the first frequency band.

9. The multiple-turn loop antenna arrangement according to claim 1, wherein said planar element is configured for providing resonance for said second frequency band.

10. A portable radio communication device including the multiple-turn loop antenna arrangement according to claim 1.