Antenna assembly and method for manufacturing same

• US 9,553,476 B2
• Filed: 03/22/2013
• Issued: 01/24/2017
• Est. Priority Date: 03/23/2012
• Status: Active Grant

• Current Assignee: Nera Innovations Limited (Atlantic IP Services Limited)
• Original Assignee: LG Innotek Company Limited (LG Corporation)
• Inventors: An, Jeong Wook, Lee, Jung Oh, Kim, Yang Hyun, Lee, Ki Min, Lee, Hye Min, Leem, Sung Hyun, Chang, Ki Chul
• Primary Examiner(s): LE, HOANGANH T
• Application Number:
  US14/387,521
• Publication Number:
  US 20150077296A1
• Time in Patent Office: 1,404 Days
• Field of Search: 343/720, 343/895, 343/867, 343/742
• US Class Current: 1/1
• CPC Class Codes: H01P 11/00 Apparatus or processes specially adapted for manufacturing waveguides or resonators, lines, or other devices of the waveguide type
• 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 1/2291 used in bluetooth or WI-FI devices of Wireless Local Area Networks [WLAN] H01Q1/241 takes precedence; WLAN in general H04W
• 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 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 50/12 of the resonant type
• CPC Class Codes: H02J 50/70 involving the reduction of electric, magnetic or electromagnetic leakage fields
• CPC Class Codes: H04B 5/26 using coils
• CPC Class Codes: H04B 5/79 for data transfer in combination with power transfer

Abstract

Disclosed is an antenna assembly including a substrate, and a wireless charge antenna pattern on the substrate. The wireless charge antenna pattern has a sectional surface including a plurality of inner angles in which two inner angles are different from each other. The antenna assembly includes a wireless communication antenna pattern formed on the substrate and provided at an outside of the wireless charge antenna pattern. The wireless communication antenna pattern has a plurality of inner angles at a sectional surface thereof, and a plurality of angle values of the inner angles provided at the sectional surface of the wireless communication antenna pattern correspond to a plurality of angle values of the inner angles provided at the sectional surface of the wireless charge antenna pattern, respectively.

Claims

1. A wireless power receiver comprising:

a flexible printed circuit board comprising a first surface and a second surface opposite the first surface;

a first antenna disposed on the first surface of the flexible printed circuit board for wireless charging;

a second antenna disposed on the first surface of the flexible printed circuit board for wireless communication such that it surrounds the first antenna;

a plurality of contact terminals configured to electrically connect the first antenna to a battery for charging the battery and the second antenna to a wireless communication module; and

a magnetic sheet on the first antenna and the second antenna;

wherein the first antenna comprises a first coil pattern wound multiple times, a first terminal placed at an outside of the first coil pattern, and a second terminal placed at an inside of the first coil pattern;

wherein the second antenna comprises a second coil pattern wound multiple times, a third terminal placed at an inside of the second coil pattern, and a fourth terminal placed at an outside of the second coil pattern;

wherein the first terminal is electrically connected to a first connector by a first sub-connection part that crosses, and is physically insulated from, the second coil pattern, and the first sub-connection part is disposed on the second surface of the flexible printed circuit board;

wherein the second terminal is electrically connected to a second connector by a second sub-connection part that crosses, and is physically insulated from, both the first coil pattern and the second coil pattern, and the second sub-connection part is disposed on the second surface of the flexible printed circuit board;

wherein the plurality of contact terminals comprises a first contact terminal and a second contact terminal that connect the first antenna and the battery for charging the battery;

wherein the first connector is electrically connected to the first contact terminal by a first connection conductive line, and the first connection conductive line is disposed on the first surface of the flexible printed circuit board;

wherein the second connector is electrically connected to the second contact terminal by a second connection conductive line, and the second connection conductive line is disposed on the first surface of the flexible printed circuit board;

wherein the first antenna and the second antenna are disposed between the magnetic sheet and the flexible printed circuit board;

wherein the plurality of contact terminals comprises a third contact terminal and a fourth contact terminal that connect the second antenna and the wireless communication module;

wherein the first, second, third, and fourth contact terminals are disposed as a 2×

2 matrix;

wherein the first contact terminal and the second contact terminal are disposed on a first line in the 2×

2 matrix and the third contact terminal and the fourth contact terminal are disposed on a second line in the 2×

2 matrix;

wherein the third terminal is electrically connected to the third contact terminal by a third sub-connection part physically insulated from the second coil pattern;

wherein the fourth terminal is electrically connected to the fourth contact terminal by a fourth sub-connection part physically insulated from the second coil pattern; and

wherein a first line connecting the first terminal and the first contact terminal through the first sub-connection part, the first connector and the first connection conductive line, and a second line connecting the second terminal and the second contact terminal through the second sub-connection part, the second connector and the second connection conductive line are disposed between the third terminal and the fourth terminal.

2. The wireless power receiver of claim 1, wherein the first sub-connection part is disposed under the second coil pattern.

3. The wireless power receiver of claim 1, wherein the second sub-connection part is disposed under the first coil pattern and the second coil pattern.

4. The wireless power receiver of claim 1, wherein the third sub-connection part is disposed under the second coil pattern.

5. The wireless power receiver of claim 1, wherein the first terminal is electrically connected to the first sub-connection part through a first via hole.

6. The wireless power receiver of claim 1, wherein the first connector is electrically connected to the first sub-connection part through a second via hole.

7. The wireless power receiver of claim 1, wherein the second terminal is electrically connected to the second sub-connection part through a third via hole.

8. The wireless power receiver of claim 1, wherein the second connector is electrically connected to the second sub-connection part through a fourth via hole.

9. The wireless power receiver of claim 1, wherein the third terminal is electrically connected to the third sub-connection part through a fifth via hole.

10. The wireless power receiver of claim 1, wherein the fourth terminal is electrically connected to the fourth sub-connection part through a sixth via hole.

11. The wireless power receiver of claim 1, wherein the first contact terminal is disposed closer to the first connector than is the third contact terminal.

12. The wireless power receiver of claim 1, wherein the second contact terminal is disposed closer to the second connector than is the fourth contact terminal.

13. The wireless power receiver of claim 1, wherein a width of the first coil pattern is wider than a width of the second coil pattern.

14. The wireless power receiver of claim 1, wherein a spacing of the first coil pattern is greater than a spacing of the second coil pattern.

15. The wireless power receiver of claim 1, wherein the second antenna is a Near Field Communication (NFC) antenna.