ANTENNA ASSEMBLY AND MOBILE TERMINAL USING SAME

• US 20140285384A1
• Filed: 03/18/2014
• Published: 09/25/2014
• Est. Priority Date: 03/22/2013
• Status: Active Grant

• Current Assignee: AAC Technologies Pte Limited (AAC Technologies Holdings Inc.)
• Original Assignee: AAC Technologies Pte Limited (AAC Technologies Holdings Inc.)
• Inventors: Hong, Ng Guan, Siow, Tay Yew
• Granted Patent: US 9,812,765 B2
• Time in Patent Office: Days
• US Class Current: 343/702
• CPC Class Codes: H01Q 1/243 with built-in antennas
• CPC Class Codes: H01Q 5/371 Branching current paths

Abstract

An embodiment of the present invention provides an antenna assembly and a mobile terminal. The antenna assembly includes an antenna body provided with a grounding plate and a feeding portion. The antenna body includes a radiating portion provided with an unclosed loop structure. The antenna assembly further has a metal frame. The metal frame is provided with a closed first loop portion surrounding an outer periphery of the radiating portion. An annular gap is formed between the first loop portion and the radiating portion. The antenna assembly of the present disclosure improves the product performance and makes the product appearance more aesthetic.

Claims

1. An antenna assembly, comprising:

an antenna body provided with a grounding plate and a feeding portion, and

a metal frame,

the antenna body, comprising;

a radiating portion provided with an unclosed loop structure,

the metal frame is provided with a closed first loop portion surrounding an outer periphery of the radiating portion, and

an annular gap is formed between the first loop portion and the radiating portion.

2. The antenna assembly of claim 1, wherein the grounding plate keeps a distance from the radiating portion.

3. The antenna assembly of claim 1, wherein the antenna body further comprises a T-shaped branch portion that extends vertically from an end of the radiating portion in a direction away from the radiating portion, the branch portion comprises a first branch strip that connects with the radiating portion and a second branch strip that extends vertically from the first branch strip toward the grounding plate, and the radiating portion and the branch portion are formed integrally.

4. The antenna assembly of claim 3, wherein the branch portion is located between the radiating portion and the grounding plate, and the second branch strip keeps a distance from the grounding plate.

5. A mobile terminal, comprising:

an antenna assembly,

a USB module,

a speaker module, and

a supporting plate for supporting the USB module and the speaker module, wherein the antenna assembly, comprising;

an antenna body provided with a grounding plate and a feeding portion, and

a metal frame,

the antenna body, comprising;

a body portion provided with an unclosed loop structure, wherein the metal frame is provided with a closed first loop portion surrounding an outer periphery of the radiating portion, and an annular gap is formed between the first loop portion and the radiating portion.

6. The mobile terminal of claim 5, wherein the grounding plate keeps a distance from the radiating portion.

7. The mobile terminal of claim 5, wherein the antenna body further comprises a T-shaped branch portion that extends vertically from an end of the radiating portion in a direction away from the radiating portion, the branch portion comprises a first branch strip that connects with the radiating portion and a second branch strip that extends vertically from the first branch strip toward the grounding plate, and the body portion and the branch portion are formed integrally.

8. The mobile terminal of claim 7, wherein the branch portion is located between the radiating portion and the grounding plate, and the second branch strip keeps a distance from the grounding plate.

9. The mobile terminal of claim 5, wherein the radiating portion is formed with a through hole, and a front end of the USB module communicates with the through hole.

10. The mobile terminal of claim 5, wherein the first loop portion is located at one side of the mobile terminal, and the metal frame further comprises a second loop portion located at the other side of the mobile terminal and connecting rods that connect the first loop portion and the second loop portion.

11. An antenna assembly, comprising:

a ground plane;

a main body, having feeding portion and a radiating portion which is an unclosed ring loop;

a metallic frame including a first loop surrounding and keeping a distance from the radiating portion for forming a gap therebetween.