Antenna for wireless power, and dual mode antenna comprising same

• US 10,224,747 B2
• Filed: 09/06/2017
• Issued: 03/05/2019
• Est. Priority Date: 12/12/2012
• Status: Active Grant

• Current Assignee: Samsung Electronics Co. Ltd.
• Original Assignee: LS Cable And System Limited (LS Cable)
• Inventors: Moon, Sung-Hoon, Lee, Heung-Kyu, Lee, Ji-Hyung, Han, Min-Seok, Park, Lae-Hyuk, Kim, Young-Sun, Park, Un-Kyu, You, Sung-Han
• Primary Examiner(s): Fureman, Jared
• Assistant Examiner(s): Evans, James
• Application Number:
  US15/696,710
• Publication Number:
  US 20170366013A1
• Time in Patent Office: 545 Days
• Field of Search: None
• 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 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: H02J 50/005 Mechanical details of housing or structure aiming to accommodate the power transfer means, e.g. mechanical integration of coils, antennas or transducers into emitting or receiving devices
• CPC Class Codes: H02J 50/10 using inductive coupling
• CPC Class Codes: H02J 50/12 of the resonant type
• CPC Class Codes: H02J 50/23 characterised by the type of transmitting antennas, e.g. directional array antennas or Yagi antennas

Abstract

Provided is a wireless power antenna for wirelessly transmitting, receiving, or relaying power, the wireless power antenna comprising an insulating sheet and a wireless power coil including a split pattern unit including a plurality of patterns spaced from each other in at least a region thereof in a widthwise direction, wherein the split pattern unit is disposed on both a top surface and a bottom surface of the insulating sheet.

Claims

1. A dual mode antenna comprising:

an insulating sheet;

a near-field communication (NFC) coil provided on the insulating sheet to transmit and receive data; and

a wireless power coil provided on the insulating sheet to wirelessly transmit and receive power, and including;

a core wire wound in a loop shape on the insulating sheet; and

a split pattern unit formed at a portion of the core wire and including a plurality of patterns having a width of 0.10 mm to 0.20 mm and which are spaced apart from each other in a widthwise direction of the core wire,

wherein the plurality of patterns comprise a main pattern and at least one sub-pattern, and

wherein at least one of a width and a height of the main pattern exceeds a width or height of the at least one sub-pattern.

2. The dual mode antenna of claim 1, further comprising a pair of wireless power connection terminals formed on one surface of the insulating sheet, and electrically connected to both ends of the wireless power coil, and

wherein the split pattern unit is spaced a predetermined distance from the pair of wireless power connection terminals.

3. The dual mode antenna of claim 1, wherein the split pattern unit is disposed on both a top surface and a bottom surface of the insulating sheet.

4. The dual mode antenna of claim 3, wherein the split pattern unit comprises:

a first split pattern unit formed on the top surface of the insulating sheet; and

a second split pattern unit formed on the bottom surface of the insulating sheet and electrically connected to the first split pattern unit.

5. The dual mode antenna of claim 4, wherein current flows through the first split pattern unit and the second split pattern unit in the same direction, when viewed in front of the dual mode antenna.

6. The dual mode antenna of claim 4, wherein the first split pattern unit and the second split pattern unit are disposed on a same position to be symmetrical to each other with respect to the insulating sheet.

7. The dual mode antenna of claim 4, wherein patterns of the first split pattern unit and patterns of the second split pattern unit are disposed at different positions in a zigzag fashion with respect to the insulating sheet.

8. The dual mode antenna of claim 1, wherein widths of patterns of the split pattern unit are determined such that non-conducting regions are not generated in the patterns.

9. The dual mode antenna of claim 8, wherein the widths of the patterns of the split pattern unit are determined to be twice or less a surface thickness which current is capable of penetrating.

10. The dual mode antenna of claim 1, wherein the split unit comprises two or more sub-patterns having same widths and heights.

11. The dual mode antenna of claim 1, wherein the split pattern unit comprises two or more sub-patterns having different widths, different heights, or different widths and heights.