Antenna assembly and method for manufacturing same

• US 10,673,141 B2
• Filed: 01/31/2019
• Issued: 06/02/2020
• 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): Alkassim, Jr., Ab Salam
• Application Number:
  US16/264,165
• Publication Number:
  US 20190165474A1
• Time in Patent Office: 488 Days
• Field of Search: None
• 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. An antenna assembly comprising:

a substrate;

a first antenna on the substrate and configured for wireless charging;

a second antenna on the substrate and configured for wireless communication;

a magnetic sheet on the second antenna; and

a first contact terminal, a second contact terminal, a third contact terminal, and a fourth contact terminal disposed at an outer portion of the magnetic sheet;

wherein the first antenna comprises;

a first coil pattern wound a plurality of times;

a first terminal at an outside of the first coil pattern; and

a second terminal at an inside of the first coil pattern,

wherein the first contact terminal is connected to the first terminal,

wherein the second contact terminal is connected to the second terminal,

wherein the second antenna comprises;

a second coil pattern wound a plurality of times;

a third terminal at an inside of the second coil pattern; and

a fourth terminal at an outside of the second coil pattern, and

wherein the third contact terminal is connected to the third terminal; and

wherein the fourth contact terminal is connected to the fourth terminal;

wherein the first terminal is disposed between the outside of the first coil pattern and the inside of the second coil pattern, and the second terminal is closer to the first terminal than it is to the third terminal, and

wherein the antenna assembly comprises a part in which a distance between the magnetic sheet and the second antenna is 35 to 65 μ

m.

2. The antenna assembly of claim 1, wherein, the distance between the magnetic sheet and the second antenna is 40 to 60 μ

m.

3. The antenna assembly of claim 1,

wherein a spacing of the second antenna is less than 500 μ

m, and

wherein the spacing of the second antenna is ½

to 2 times a line width of the second antenna.

4. The antenna assembly of claim 1, wherein the magnetic sheet comprises:

a first portion that overlaps the first coil pattern in a vertical direction perpendicular to the magnetic sheet; and

a second portion that does not overlap the first coil pattern in the vertical direction.

5. The antenna assembly of claim 4, wherein the magnetic sheet comprises:

a third portion that overlaps the second coil in the vertical direction; and

a fourth portion that does not overlap the second coil in the vertical direction.

6. The antenna assembly of claim 1, wherein the first antenna comprises at least one of an under-etched portion and an over-etched portion.

7. The antenna assembly of claim 1, wherein the second antenna comprises at least one of an under-etched portion and an over-etched portion.

8. The antenna assembly of claim 1, wherein the substrate comprises a polyimide film.

9. The antenna assembly of claim 1, comprising:

an adhesive layer between the magnetic sheet and the second antenna.

10. An antenna assembly comprising:

a substrate;

a first antenna on the substrate and configured for wireless charging;

a second antenna on the substrate and configured for wireless communication;

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

a first contact terminal, a second contact terminal, a third contact terminal, and a fourth contact terminal disposed at an outer portion of the magnetic sheet;

wherein the first antenna comprises;

a first coil pattern wound a plurality of times;

a first terminal at an outside of the first coil pattern; and

a second terminal at an inside of the first coil pattern,

wherein the first contact terminal is connected to the first terminal,

wherein the second contact terminal is connected to the second terminal,

wherein the second antenna comprises;

a second coil pattern wound a plurality of times;

a third terminal at an inside of the second coil pattern; and

a fourth terminal at an outside of the second coil pattern, and

wherein the third contact terminal is connected to the third terminal,

wherein the fourth contact terminal is connected to the fourth terminal,

wherein the first terminal is disposed between the outside of the first coil pattern and the inside of the second coil pattern, and the second terminal is closer to the first terminal than it is to the third terminal,

wherein the magnetic sheet comprises;

a first portion that overlaps the first coil pattern in a vertical direction perpendicular to the magnetic sheet; and

a second portion that does not overlap the first coil in the vertical direction.

11. The antenna assembly of claim 10, wherein the antenna assembly comprises a part in which a distance between the magnetic sheet and the second antenna is 35 to 65 μ

m.

12. The antenna assembly of claim 10, wherein a spacing of the second antenna is less than 500 μ

m, and wherein the spacing of the second antenna is ½

to 2 times a line width of the second antenna.

13. The antenna assembly of claim 10, wherein the magnetic sheet comprises:

a third portion that overlaps the second coil in the vertical direction; and

a fourth portion that does not overlap the second coil in the vertical direction.

14. The antenna assembly of claim 10, wherein the antenna assembly comprises a part in which a distance between the magnetic sheet and the second antenna is 40 to 60 μ

m.

15. The antenna assembly of claim 10, wherein the first antenna comprises at least one of an under-etched region and an over-etched region.

16. The antenna assembly of claim 10, wherein the second antenna comprises at least one of an under-etched region and an over-etched region.

17. The antenna assembly of claim 10, wherein the substrate comprises a polyimide film.

18. The antenna assembly of claim 10, comprising:

an adhesive layer between the magnetic sheet and the second antenna.