Antenna device and electronic device with the same

Patent metadata

Field	Value
Publication number	US-9583825-B2
Application number	US-201414445762-A
Country	US
Kind code	B2
Filing date	Jul 29, 2014
Priority date	Aug 6, 2013
Publication date	Feb 28, 2017
Grant date	Feb 28, 2017

Abstract

An electronic device is provided. The electronic device includes a printed circuit board (PCB), a shield can disposed on the PCB, an antenna radiator of which at least a part enters an internal space of the shield can and is installed at an inner surface of the shield can, and an electrical connecting means which is installed at a corresponding position of the PCB so as to be electrically connected with the at least a part of the antenna radiator installed at the inner surface of the shield can.

First claim

What is claimed is:

1. An electronic device comprising:
a printed circuit board (PCB);
a shield can disposed on the PCB and made of a conductive metallic material, the shield can serves to shield electronic components of the PCB and absorb heat generated from the electronic components;
an antenna radiator of which at least a part enters an internal space of the shield can and is installed at an inner surface of the shield can; and
an electrical connecting means which is installed at a corresponding position of the PCB so as to be electrically connected with the at least a part of the antenna radiator installed at the inner surface of the shield can,
wherein a ferrite film is disposed between the antenna radiator and the shield can, and
wherein the antenna radiator is stacked with the ferrite film.

2. The device of claim 1 , wherein the shield can is fastened to the PCB.

3. The device of claim 1 , wherein the antenna radiator is defined as a flexible printed circuit in which a conductive pattern is disposed in a loop shape.

4. The device of claim 1 , wherein the antenna radiator is used for short range communication.

5. The device of claim 4 , wherein the antenna radiator is used for one of RFID communication and NFC communication.

6. The device of claim 1 , wherein the shield can comprises:
an upper surface having a predetermined size;
a side surface which is bent along an edge of the upper surface to have a predetermined height; and
an opening defined in the shield can,
wherein the at least a part of the antenna radiator enters an internal space of the shield through the opening.

7. The device of claim 6 , wherein the at least a part of the antenna radiator is bent through the opening.

8. The device of claim 7 , wherein the opening is defined in the upper surface, and the at least a part of the antenna radiator is installed at an inner surface opposite to the upper surface.

9. The device of claim 7 , wherein the opening is defined in the side surface, and the at least a part of the antenna radiator is installed at an inner side surface opposite to the side surface.

10. The device of claim 6 , wherein the at least a part of the antenna radiator comprises a feeding pad which is electrically connected with a feeding portion of the PCB.

11. The device of claim 10 , wherein the electrical connecting means electrically connects the feeding portion and the feeding pad.

12. The device of claim 11 , wherein the electrical connecting means is integrally formed by bending a metal plate.

13. The device of claim 11 , wherein the electrical connecting means is one of a C-clip and a conductive tape of which one end is connected with the feeding portion, and the other end is connected with the feeding pad.

14. The device of claim 13 , wherein the C-clip comprises,
a fixing end which is fastened to the PCB and connected with the feeding portion; and
a free end which extends from the fixing end and then bent to be elastically deformed.

15. A shield can comprising:
an upper surface;
an inner surface which is opposite to the upper surface;
an opening which is defined in at least a portion of the upper surface to pass through to the inner surface; and
an antenna radiator of which at least a part is installed at the upper surface,
wherein a feeding portion of the antenna radiator is installed at the inner surface through the opening, and
the shied can is made of a conductive metallic material, the shield can serves to shield electronic components and absorb heat generated from the electronic components,
wherein a ferrite film is disposed between the upper surface and the antenna radiator, and
wherein the antenna radiator is stacked with the ferrite film.

16. The shield can of claim 15 , wherein the antenna radiator is used for one of RFID communication and NFC communication.

Assignees

• Samsung Electronics Co Ltd
• Samsung Electronics Co Ltd

Inventors

• Jung Young-Hwan

Classifications

• H10W44/248

  for antennas · CPC title

• H01Q7/00

  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 title

• H01Q1/523 Primary

  between antennas of an array · CPC title

• H01Q1/243 Primary

  with built-in antennas · CPC title

• H01Q9/0407

  Substantially flat resonant element parallel to ground plane, e.g. patch antenna (dipole H01Q9/285; monopole H01Q9/40) · CPC title