Mobile terminal and method of reducing SAR of mobile terminal

A mobile terminal and circuit technology, applied in the field of mobile terminal and mobile terminal SAR reduction, can solve the problems of poor stability, low SAR efficiency and high cost, and achieve the effects of reducing SAR, improving work stability and improving efficiency

Pending Publication Date: 2017-04-19
SHANGHAI LOVDREAM COMM TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a mobile terminal and a method for reducing the SAR of the mobile t

Method used

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  • Mobile terminal and method of reducing SAR of mobile terminal
  • Mobile terminal and method of reducing SAR of mobile terminal

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Embodiment Construction

[0042] The present invention is further illustrated below by means of examples, but the present invention is not limited to the scope of the examples.

[0043] Such as figure 1 As shown, the mobile terminal provided in this embodiment includes a human body proximity sensor 1, a processing unit 2, a radio frequency processing circuit 3, a first switch 4, a second switch 5, a first attenuation circuit 6, a second attenuation circuit 7, The attenuation circuit 8 and the antenna 9, the human body proximity sensor 1, the radio frequency processing circuit 3, the first switch 4 and the second switch 5 are respectively electrically connected to the processing unit 2, the first switch 4 is electrically connected to the radio frequency processing circuit 3, and the second The second switch 5 is electrically connected to the antenna 9, and the first attenuation circuit 6, the second attenuation circuit 7 and the non-attenuation circuit 8 are respectively electrically connected between t...

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Abstract

The present invention discloses a mobile terminal and a method of reducing the SAR of the mobile terminal. The mobile terminal comprises a human body proximity sensor, a processing unit, a radio frequency processing circuit, a switching circuit, a non-attenuation circuit, an attenuation circuit and an antenna. The human body proximity sensor, the radio frequency processing circuit and the switching circuit are respectively and electrically connected with the processing unit. The human body proximity sensor is used for detecting the distance thereof relative to a human body, and then sending an obtained distance value to the processing unit. The processing unit is used for judging whether the distance value is smaller than or equal to a first threshold or not. The switching circuit is used for transmitting a radio frequency signal sent from the radio frequency processing circuit to the attenuation circuit. The attenuation circuit is used for attenuating the radio frequency signal, and then transmitting the attenuated radio frequency signal to the antenna. The processing unit is used for judging whether the distance value is greater than the first threshold or not. The switching circuit is used for transmitting the radio frequency signal sent from the radio frequency processing circuit to the non-attenuation circuit. The non-attenuation circuit is used for transmitting the received radio frequency signal to the antenna. According to the technical scheme of the invention, the SAR of the mobile terminal is reduced. Meanwhile, the working efficiency is improved.

Description

technical field [0001] The invention relates to a mobile terminal and a method for reducing the SAR (Specific Absorption Rate, electromagnetic wave absorption ratio or specific absorption rate) of the mobile terminal. Background technique [0002] Due to the widespread popularity of radio equipment (such as mobile phones) around the world, more and more government departments, telecommunication regulatory agencies, etc. require that electromagnetic wave radiation be reduced to an appropriate level. SAR is 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 lossy media, the electromagnetic field in the body will generate currents, resulting in the absorption and dissipation of electromagnetic energy. SAR is commonly used in biological dosimetry to character...

Claims

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Application Information

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IPC IPC(8): H04W52/02H04W52/24H04W52/28H04M1/725H04B1/3827
CPCH04B1/3838H04W52/0225H04W52/0245H04W52/245H04W52/285H04M1/72454Y02D30/70
Inventor 陈亮
Owner SHANGHAI LOVDREAM COMM TECH
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