MOBILE TERMINAL FOR REDUCING SPECIFIC ABSORPTION RATE

• US 20080158065A1
• Filed: 08/02/2007
• Published: 07/03/2008
• Est. Priority Date: 12/28/2006
• Status: Active Grant

• Current Assignee: Samsung Electronics Co. Ltd.
• Original Assignee: Samsung Electronics Co. Ltd.
• Inventors: WEE, Hee Geol
• Granted Patent: US 7,646,349 B2
• Time in Patent Office: Days
• US Class Current: 343/700MS
• CPC Class Codes: H01Q 1/245 with means for shaping the antenna pattern, e.g. in order to protect user against rf exposure
• CPC Class Codes: H01Q 17/001 for modifying the directional characteristic of an aerial

Abstract

A mobile terminal that may reduce a specific absorption rate (SAR) includes a case, a circuit board in the case, a ground in the circuit board, an antenna pattern, and a ground pattern spaced apart from the antenna pattern and made of a material that absorbs electromagnetic waves. The ground pattern is connected to the ground of the circuit board or an auxiliary ground.

Claims

1. A mobile terminal, comprising:

a case;

a circuit board in the case;

a ground in the circuit board;

an antenna pattern; and

a ground pattern spaced apart from the antenna pattern and comprising a material that absorbs electromagnetic waves,

wherein the ground pattern is connected to the ground in the circuit board.

2. The mobile terminal of claim 1, wherein the antenna pattern and the ground pattern are disposed in an antenna carrier.

3. The mobile terminal of claim 1, further comprising a metal member, wherein the ground pattern is connected to the ground of the circuit board through the metal member.

4. The mobile terminal of claim 1, wherein the antenna pattern has at least one bending portion, and the ground pattern has at least one bending portion corresponding to the at least one bending portion of the antenna pattern.

5. The mobile terminal of claim 4, wherein the at least one bending portion of the ground pattern is disposed only at a side of the ground pattern facing the antenna pattern.

6. A mobile terminal, comprising:

a case;

a circuit board in the case and comprising a ground;

an auxiliary ground spaced apart from the ground;

an antenna pattern; and

a ground pattern spaced apart from the antenna pattern and comprising a material that absorbs electromagnetic waves,

wherein the ground pattern is connected to the auxiliary ground.

7. The mobile terminal of claim 6, wherein the auxiliary ground is formed in the case.

8. The mobile terminal of claim 6, wherein the antenna pattern and the ground pattern are disposed in an antenna carrier.

9. The mobile terminal of claim 6, further comprising a metal member, wherein the ground pattern is connected to the auxiliary ground through the metal member.

10. The mobile terminal of claim 6, wherein the antenna pattern has at least one bending portion, and the ground pattern has at least one bending portion corresponding to the at least one bending portion of the antenna pattern.

11. The mobile terminal of claim 6, wherein the at least one bending portion of the ground pattern is disposed only at a side of the ground pattern facing the antenna pattern.