ANTENNA STRUCTURE AND WIRELESS COMMUNICATION DEVICE

• US 20140340280A1
• Filed: 12/27/2013
• Published: 11/20/2014
• Est. Priority Date: 05/14/2013
• Status: Active Grant

• Current Assignee: Chiun Mai Communication Systems, Inc. (Hon Hai Precision Industry Co., Ltd.)
• Original Assignee: Chiun Mai Communication Systems, Inc. (Hon Hai Precision Industry Co., Ltd.)
• Inventors: LIOU, GENG-HONG, LIN, YEN-HUI
• Granted Patent: US 9,680,203 B2
• Time in Patent Office: Days
• US Class Current: 343/893
• CPC Class Codes: H01Q 1/243 with built-in antennas
• CPC Class Codes: H01Q 5/371 Branching current paths

Abstract

An antenna structure includes a metal member, an extending section, and a metal sheet. The metal member defines a gap. The gap divides the metal member into a first portion and a second portion. The extending section is connected to the first portion of the metal ember to cooperatively form a first antenna. The first antenna, the metal sheet and the second portion of the metal portion cooperatively form a second antenna.

Claims

1. An antenna structure, comprising:

a metal member defining a gap, the gap dividing the metal member into a first portion and a second portion;

an extending section connected to the first portion of the metal member to cooperatively form a first antenna; and

a metal sheet, the first antenna, the metal sheet and the second portion of the metal portion cooperatively forming a second antenna.

2. The antenna structure of claim 1, wherein the metal member is a frame structure including a first frame leg, a second frame leg and a third frame leg, the second frame leg and the third frame leg are respectively connected to two ends of the first frame leg.

3. The antenna structure of claim 2, wherein the gap is defined in the first frame leg, the gap dividing the first frame leg into a first panel portion and a second panel portion spaced from the first panel portion, the first panel portion is connected to the second frame leg to form the first portion, the second panel portion is connected to the third frame leg to from the second portion.

4. The antenna structure of claim 3, wherein the extending section is connected to an end of the first panel portion opposite to the second frame leg and parallel to the second frame leg.

5. The antenna structure of claim 4, wherein the first panel portion comprises a first connecting point adjacent to an end of the second frame leg configured to feed current for the antenna structure, when the current is fed into the first connecting point, a first portion of the current flows through the extending section and a second portion of the current flows through the second frame leg, the extending section and the second frame leg form a first antenna path.

6. The antenna structure of claim 5, wherein a third portion of the current flowing to a distal end of the first panel portion flows through the second panel portion and finally flows into the ground point via the third frame leg;

the current flowing though the extending section flows through the metal sheet, and then flows through the second panel portion and finally flows into the ground point via the third frame leg;

current fed into the metal sheet from the circuit board also flows through the second panel portion and finally flows into the ground point via the third frame leg;

the first panel portion, the metal sheet, the second panel portion, and the third frame leg cooperatively form a second antenna path.

7. A wireless communication device, comprising:

a circuit board, comprising a feed point and a ground point;

an antenna structure connected to the feed point and the ground point, the antenna structure comprising;

a metal member, the metal member defining a gap, the gap dividing the metal member into a first portion and a second portion;

an extending section, the extending section connected to the first portion of the metal ember to cooperatively form a first antenna; and

a metal sheet, the first antenna, the metal sheet and the second portion of the metal portion cooperatively forming a second antenna.

8. The wireless communication device of claim 7, wherein the metal member is a frame structure including a first frame leg, a second frame leg and a third frame leg, the second frame leg and the third frame leg are respectively connected to two ends of the first frame leg, the second frame leg and the third frame leg are electronically connected to the ground point.

9. The wireless communication device of claim 8, wherein the first frame leg defines the gap, the gap divides the first frame leg into a first panel portion and a second panel portion spaced from the first panel portion, the first panel portion is connected to the second frame leg to form the first portion, the second panel portion is connected to the third frame leg to from the second portion.

10. The wireless communication device of claim 9, wherein the extending section is connected to an end of the first panel portion opposite to the second frame leg and parallel to the second frame leg.

11. The wireless communication device of claim 10, wherein the first panel portion comprises a first connecting point adjacent to an end of the second frame leg connected to the feed point, when the current is fed into the first connecting point, a first portion of the current flows through the extending section and a second portion of the current flows through the second frame leg, the extending section and the second frame leg form a first antenna path.

12. The wireless communication device of claim 11, wherein a third portion of the current flowing to a distal end of the first panel portion flows through the second panel portion and finally flows into the ground point via the third frame leg;

the current flowing though the extending section flows through the metal sheet, and then flows through the second panel portion and finally flows into the ground point via the third frame leg;

current fed into the metal sheet from the circuit board also flows through the second panel portion and finally flows into the ground point via the third frame leg;

the first panel portion, the metal sheet, the second panel portion, and the third frame leg cooperatively form a second antenna path.