ANTENNA STRUCTURE AND ELECTRONIC DEVICE USING THE SAME

• US 20130147676A1
• Filed: 07/27/2012
• Published: 06/13/2013
• Est. Priority Date: 12/08/2011
• Status: Abandoned Application

• Current Assignee: Hon Hai Precision Industry Co., Ltd.
• Original Assignee: Hon Hai Precision Industry Co., Ltd.
• Inventors: CHANG, SHU-WEI, LIU, HSIN-HUNG, YANG, FU-HSIUNG
• Application Number:
  US13/559,617
• Publication Number:
  US 20130147676A1
• Time in Patent Office: Days
• US Class Current: 343/841
• CPC Class Codes: H01Q 1/521 reducing the coupling between adjacent antennas

Abstract

An antenna structure includes a first antenna and a second antenna both connected to a PCB of an electronic device and a grounded metal sheet arranged between the first antenna and the second antenna. The metal sheet forms a capacitor and an inductor, and the capacitor and the inductor form a filtering circuit that is able to reduce interference between the first antenna and the second antenna.

Claims

1. An antenna structure for use in a housing of an electronic device, the antenna structure comprising:

a first antenna and a second antenna both connected to a printed circuit board of the electronic device; and

a grounded metal sheet arranged between the first antenna and the second antenna, wherein the metal sheet forms a capacitor and an inductor, and the capacitor and the inductor form a filtering circuit that is able to reduce interference between the first antenna and the second antenna.

2. The antenna structure as described in claim 1, wherein the metal sheet is substantially T-shaped and comprises a vertical portion and a horizontal portion, the vertical portion is connected to the printed circuit board for grounding, when electromagnetic signals interact with the metal sheet, the horizontal portion functions as a capacitor and the vertical portion functions as an inductor.

3. The antenna structure as described in claim 2, wherein the metal sheet is made of copper.

4. The antenna structure as described in claim 1, wherein both of the first antenna and the second antenna are connected to the printed circuit board by two components, one of the two components is for feed-in and the other of the two components is for grounding.

5. The antenna structure as described in claim 4, wherein the two components are both elastic conductor.

6. The antenna structure as described in claim 1, wherein the first antenna and the second antenna are both flex printed circuit (FPC) antenna.

7. The antenna structure as described in claim 6, wherein the first antenna is a global positioning system (GPS) antenna and the second antenna is a wireless fidelity (Wi-Fi) antenna.

8. An electronic device comprising:

a housing;

a printed circuit board arranged in the housing;

a first antenna and a second antenna both connected to a printed circuit board; and

a grounded metal sheet arranged between the first antenna and the second antenna, wherein the metal sheet forms a capacitor and an inductor, and the capacitor and the inductor form a filtering circuit that is able to reduce interference between the first antenna and the second antenna.

9. The electronic device as described in claim 8, where wherein the metal sheet is substantially T-shaped and comprises a vertical portion and a horizontal portion, the vertical portion is connected to the printed circuit board for grounding, when electromagnetic signals interact with the metal sheet, the horizontal portion functions as a capacitor and the vertical portion functions as an inductor.

10. The electronic device as described in claim 8, wherein the metal sheet is made of copper.

11. The electronic device as described in claim 8, wherein both of the first antenna and the second antenna are connected to the printed circuit board by two components, one of the two components is for feed-in and the other of the two components is for grounding.

12. The electronic device as described in claim 11, wherein the two components are both elastic conductor.

13. The electronic device as described in claim 8, wherein the first antenna and the second antenna are both flex printed circuit (FPC) antenna.

14. The electronic device as described in claim 13, wherein the first antenna is a global positioning system (GPS) antenna and the second antenna is a wireless fidelity (Wi-Fi) antenna.