Antenna structure and wireless communication device using same

Patent metadata

Field	Value
Publication number	US-9437924-B2
Application number	US-201314055972-A
Country	US
Kind code	B2
Filing date	Oct 17, 2013
Priority date	May 10, 2013
Publication date	Sep 6, 2016
Grant date	Sep 6, 2016

Abstract

An antenna structure includes a first radiating body and a second radiating body. The first radiating body includes a feed portion, a first ground portion, a first extending portion, a second extending portion, and a third extending portion. The feed portion is electronically connected to the first ground portion. The first extending portion is electronically connected to the feed portion. The second extending portion is perpendicularly connected between the first extending portion and the third extending portion. The second radiating body includes a second ground portion and a combining portion electronically connected to the second ground portion. The combining portion is spaced from the third extending portion.

First claim

What is claimed is:

1. An antenna structure, comprising:
a first radiating body comprising a feed portion, a first ground portion, a connecting portion, a first extending portion, a second extending portion, and a third extending portion; the feed portion, the first ground portion, and connecting portion being positioned coplanar; the feed portion electronically connected to the first ground portion; the first extending portion electronically connected to the feed portion, the second extending portion perpendicularly connected between the first extending portion and the third extending portion, wherein the first extending portion comprises a first extending section and a second extending section, the first extending section is positioned at a plane perpendicular to a plane of the second extending section and a width of the first extending section is greater than that of the second extending section; and
a second radiating body comprising a second ground portion and a combining portion electronically connected to the second ground portion; wherein the combining portion is spaced from the third extending portion and comprises a first combining section and a second combining section positioned coplanar with the first combining section, the first combining section has one end perpendicularly connected to the second ground portion and another end extending in a direction parallel to the second extending portion; the second combining section has one end perpendicularly connected to an end of the first combining section away from the second ground portion and another end extends towards the first extending section.

2. The antenna structure of claim 1 , wherein the first ground portion and the second ground portion are coplanar.

3. The antenna structure of claim 1 , wherein the first ground portion and the feed portion are parallel to each other, the connecting portion is perpendicularly interconnected between the feed portion and the first ground portion.

4. The antenna structure of claim 2 , wherein the first extending section is electronically connected to the feed portion, the second extending section is perpendicularly connected to the first extending section.

5. The antenna structure of claim 1 , wherein the second extending portion and the first extending section are coplanar and cooperatively form a first slot between them.

6. The antenna structure of claim 5 , wherein the third extending portion and the first extending section are coplanar and cooperatively form a second slot between them, the second slot communicates with the first slot.

7. The antenna structure of claim 1 , wherein the combining portion and the first extending section are coplanar.

8. A wireless communication device, comprising:
a main board; and
an antenna structure positioned at a side of the main board, the antenna structure comprising:
a first radiating body comprising a feed portion, a first ground portion, a connecting portion, a first extending portion, a second extending portion, and a third extending portion; the feed portion, the first ground portion, and connecting portion being positioned coplanar; the feed portion electronically connected to the first ground portion; the first extending portion electronically connected to the feed portion, the second extending portion perpendicularly connected between the first extending portion and the third extending portion, wherein the first extending portion comprises a first extending section and a second extending section, the first extending section is positioned at a plane perpendicular to a plane of the second extending section and a width of the first extending section is greater than that of the second extending section; and
a second radiating body comprising a second ground portion and a combining portion electronically connected to the second ground portion; wherein the combining portion is spaced from the third extending portion and comprises a first combining section and a second combining section positioned coplanar with the first combining section, the first combining section has one end perpendicularly connected to the second ground portion and another end extending in a direction parallel to the second extending portion; the second combining section has one end perpendicularly connected to an end of the first combining section away from the second ground portion and another end extends towards the first extending section.

9. The wireless communication device of claim 8 , wherein the first radiating body and the second radiating body are positioned in a same side of the main board.

10. The wireless communication device of claim 8 , further comprising a housing, wherein the housing shields the main board and protects the antenna structure.

11. The wireless communication device of claim 8 , wherein the first ground portion and the second ground portion are coplanar.

12. The wireless communication device of claim 8 , wherein the first ground portion and the feed portion are parallel to each other, the connecting portion is perpendicularly interconnected between the feed portion and the first ground portion.

13. The wireless communication device of claim 11 , wherein the first extending section is electronically connected to the feed portion, the second extending section is perpendicularly connected to the first extending section.

14. The wireless communication device of claim 8 , wherein the second extending portion and the first extending section are coplanar and cooperatively form a first slot between them.

15. The wireless communication device of claim 14 , wherein the third extending portion and the first extending section are coplanar and cooperatively form a second slot between them, the second slot communicates with the first slot.

16. The wireless communication device of claim 8 , wherein the combining portion and the first extending section are coplanar.

17. The wireless communication device of claim 8 , wherein the wireless communication device works at a first frequency band about 824-960 MHz and a second frequency band about 1710-2170 MHz.

18. The wireless communication device of claim 16 , wherein a length of the first extending portion is about 28.5 mm, a length of the third extending portion is about 56 mm, and a length of the second combining section is about 22 mm.

Assignees

• Chiun Mai Communication Systems Inc

Inventors

• Sung Kun-Lin
• Lin Yen-Hui

Classifications

• H01Q9/0421

  with a shorting wall or a shorting pin at one end of the element (H01Q9/0414 takes precedence) · CPC title

• H01Q1/243

  with built-in antennas · CPC title

• H01Q5/371 Primary

  Branching current paths · CPC title