Combo antenna module

Patent metadata

Field	Value
Publication number	US-11329370-B2
Application number	US-201916982510-A
Country	US
Kind code	B2
Filing date	Mar 13, 2019
Priority date	Mar 23, 2018
Publication date	May 10, 2022
Grant date	May 10, 2022

Abstract

Disclosed is a combo antenna module in which an accommodation groove is formed in a coil pattern and a connection pattern connected to a coil pattern disposed on another surface is disposed in the accommodation groove so as to minimize a mounting space and provide antenna performance greater than or equal to that of a conventional antenna module. The disclosed combo antenna module comprises a coil pattern for short-range communication and a coil pattern for wireless power transmission. The coil pattern for wireless power transmission has the accommodation groove formed by varying the line width of the coil pattern disposed on one surface, and the connection pattern for connecting the coil patterns disposed on the other surface is disposed in the accommodation groove so as to minimize a mounting space and provide antenna performance greater than or equal to that of a conventional antenna module.

First claim

The invention claimed is:

1. A combo antenna module comprising:
a base substrate in which an accommodation hole is formed;
a coil pattern for short-range communication disposed on one surface of the base substrate, and disposed on the outer circumference of the accommodation hole; and
an antenna sheet having coil patterns for wireless power transmission disposed on both surfaces of the base substrate,
wherein the coil pattern for wireless power transmission comprises:
a second coil pattern formed with a plurality of accommodation grooves, and disposed on one surface of the base substrate;
a plurality of third coil patterns disposed to be spaced apart from each other on other surface of the base substrate, and having both ends which face each other and are spaced apart from each other to form a second through path; and
a plurality of second connection patterns disposed in the plurality of accommodation grooves, respectively so that at least some thereof overlap the second through path, and
wherein the plurality of third coil patterns are connected to each other through the plurality of second connection patterns.

2. The combo antenna module of claim 1 ,
wherein the second coil pattern is formed so that a line width of a region in which the accommodation groove is formed is narrower than line widths of other regions.

3. The combo antenna module of claim 2 ,
wherein the second coil pattern is formed so that a width obtained by summing the line width of the region in which the accommodation groove is formed, a line width of the second connection pattern, and a separation interval between the accommodation groove and the second connection pattern is smaller than or equal to the line widths of other regions.

4. The combo antenna module of claim 2 ,
wherein the second coil pattern is disposed in a spiral shape, and a separation interval between the second coil patterns and a separation interval between the second coil pattern and the second connection pattern are the same.

5. The combo antenna module of claim 1 ,
wherein at least a portion of the plurality of accommodation grooves overlap the second through path.

6. The combo antenna module of claim 1 ,
wherein the coil pattern for wireless power transmission further comprises a fourth drawn-out pattern, and
wherein the fourth drawn-out pattern is connected with one of the plurality of third coil patterns, and disposed across the plurality of third coil patterns on the second through path.

7. The combo antenna module of claim 6 ,
wherein the coil pattern for wireless power transmission further comprises:
a third drawn-out pattern disposed on one surface of the base substrate, and connected to one end of the second coil pattern; and
a fifth drawn-out pattern disposed to be spaced apart from the third drawn-out pattern on one surface of the base substrate, and connected with the fourth drawn-out pattern.

8. The combo antenna module of claim 1 ,
wherein the coil pattern for wireless power transmission further comprises: a plurality of second via holes penetrating the base substrate to connect the second connection pattern with the third coil pattern, and
wherein a plurality of the second via holes are connected the second connection pattern with the third coil pattern.

9. The combo antenna module of claim 1 ,
wherein the base substrate is formed with a protrusion extending in an internal direction of the accommodation hole, and
further comprises a terminal member having a plurality of terminals connected to the coil pattern for short-range communication and the coil pattern for wireless power transmission, and formed on the protrusion.

10. The combo antenna module of claim 1 ,
wherein the coil pattern for short-range communication comprises:
a plurality of first coil patterns disposed along the outer circumference of the accommodation hole on one surface of the base substrate, and having both ends which face each other and is spaced apart from each other to form a first through path; and
a plurality of first connection patterns having at least some overlapping the first through path on the other surface of the base substrate, one end connected with one of the plurality of first coil patterns, and other end connected with another of the plurality of first coil patterns.

11. The combo antenna module of claim 10 ,
wherein the coil pattern for wireless power transmission is disposed across the plurality of third coil patterns on the first through path.

12. The combo antenna module of claim 10 ,
wherein the coil pattern for wireless power transmission further comprises:
a first drawn-out pattern connected to the first coil pattern disposed closest to the accommodation hole among the plurality of first coil patterns; and
a second drawn-out pattern connected to the first coil pattern disposed closest to the outer circumference of the base substrate among the plurality of first coil patterns.

13. The combo antenna module of claim 1 ,
wherein a line width of the coil pattern for short-range communication is narrower than a line width of the coil pattern for wireless power transmission.

14. The combo antenna module of claim 1 , further comprising:
a first magnetic member disposed on the other surface of the base substrate, and overlapping the coil pattern for short-range communication.

15. The combo antenna module of claim 14 ,
wherein the first magnetic member is formed of a ferrite sheet.

16. The combo antenna module of claim 14 , further comprising:
a second magnetic member spaced apart from the first magnetic member and disposed on the other surface of the base substrate, and overlapping the coil pattern for wireless power transmission.

17. The combo antenna module of claim 16 ,
wherein the second magnetic member is made of a different material from a material of the first magnet member.

18. The combo antenna module of claim 16 ,
wherein the second magnetic member is a magnetic member in which a plurality of ribbon sheets are laminated.

19. The combo antenna module of claim 18 ,
wherein the plurality of ribbon sheets comprise at least one of a grain alloy ribbon and an Fe-based amorphous ribbon.

20. The combo antenna module of claim 16 ,
wherein a thickness of the first magnetic member is equal to or smaller than a thickness of the second magnetic member.

Assignees

• Amotech Co Ltd

Inventors

• Jang Kil Jae
• Kim Chol Han

Classifications

• H01Q7/06 Primary

  with core of ferromagnetic material (H01Q7/02 takes precedence) · CPC title

• H01Q1/38 Primary

  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 title

• H01Q1/24

  with receiving set · CPC title

• H01Q1/2208

  associated with components used in interrogation type services, i.e. in systems for information exchange between an interrogator/reader and a tag/transponder, e.g. in Radio Frequency Identification [RFID] systems (methods or arrangements for sensing record carriers, e.g. for reading patterns G06K7/00; record carrier for use with machines and with at least a part designed to carry digital markings G06K19/00) · CPC title

• H01Q1/44

  using equipment having another main function to serve additionally as an antenna {, e.g. means for giving an antenna an aesthetic aspect}(H01Q1/27 - H01Q1/34 take precedence) · CPC title