Terminal and antenna layout method for reducing specific absorption rate

A technology of absorption ratio and electromagnetic wave, applied in the direction of antenna, antenna array, antenna parts, etc., can solve the problem that it is difficult to reduce the SAR value

Active Publication Date: 2014-11-26
ZTE CORP
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Problems solved by technology

Since various organs of the human body are power-consuming media, the electromagnetic field in the body will generate current, resulting in the absorption and dissipation of electromagnetic energy. SAR is the electromagnetic power absorbed or consumed by human tissue per unit mass. With the miniaturization and With the development trend of ultra-thinness, the volume of the antenna is getting smaller and smaller, but its electrical performance needs to meet the index requirements such as omnidirectional total radiation power, omnidirectional sensitivity, and specific absorption ratio. It is difficult to reduce the total radiation power while ensuring the total radiation power. SAR value

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  • Terminal and antenna layout method for reducing specific absorption rate

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Embodiment Construction

[0018] The technical solutions of the present invention will be further described below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0019] refer to figure 1 , figure 1 It is a structural schematic diagram of a preferred embodiment of a terminal for reducing the electromagnetic wave absorption ratio of the present invention.

[0020] The terminal for reducing the electromagnetic wave absorption ratio proposed in this embodiment includes a circuit board 10 and a main communication antenna 20 arranged at one end of the circuit board 10, and also includes a shunt antenna 30 arranged at the same end of the circuit board 10 as the main communication antenna 20, and the main communication antenna 20 is set opposite to the shunt antenna 30 and coupled in opposite directions to each other. The shunt ant...

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Abstract

The present invention relates to a terminal and an antenna layout method for reducing a specific absorption rate. By disposing an offloading antenna which is near a main communications antenna and coupled to the main communications antenna in an opposite direction, a magnetic field around the main communications antenna is impaired, and a field strength of the main communications antenna is reduced, so that the field strength is directly proportional to an SAR value; when the field strength is reduced, the SAR value is reduced, that is, the SAR value is reduced by adding the offloading antenna coupled to the main communications antenna in an opposite direction.

Description

technical field [0001] The invention relates to the field of communication technology, in particular to a terminal and antenna layout method for reducing the electromagnetic wave absorption ratio. Background technique [0002] SAR (Specific Absorption Rate, electromagnetic wave absorption ratio) is used to describe the electromagnetic wave energy absorption ratio of mobile phones or wireless products. It is defined as: under the action of an external electromagnetic field, an induced electromagnetic field will be generated in the human body. Since various organs of the human body are power-consuming media, the electromagnetic field in the body will generate current, resulting in the absorption and dissipation of electromagnetic energy. SAR is the electromagnetic power absorbed or consumed by human tissue per unit mass. With the miniaturization and With the development trend of ultra-thinness, the volume of the antenna is getting smaller and smaller, but its electrical perfor...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q1/22H01Q21/00
CPCH01Q1/245
Inventor 陈亚军沈俊程守刚
Owner ZTE CORP
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