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Mobile terminal and method for reducing electromagnetic wave energy absorption ratio thereof

A mobile terminal, electromagnetic wave technology, applied in electrical components, telephone structure, magnetic field/electric field shielding and other directions, can solve problems such as increasing human SAR, and achieve the effect of reducing the impact of human radiation, reducing SAR value, and easy to achieve.

Inactive Publication Date: 2011-04-06
ZTE CORP
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although this method has an impact on the electromagnetic susceptibility (ElectroMagnetic Susceptibility, EMS) and EMI of the mobile terminal, it cannot fundamentally reduce the influence of the electromagnetic wave radiated by the antenna.
In addition, in theory, when EMI coating is applied on the mobile terminal, the SAR of the human body will be increased by re-reflection due to EMI coating
Another method is to rearrange various components within the mobile terminal in consideration of the influence of SAR, but rearranging various components within the mobile terminal in order to reduce the SAR will also have adverse effects on the communication quality and / or appearance of the mobile terminal. positive effect

Method used

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  • Mobile terminal and method for reducing electromagnetic wave energy absorption ratio thereof
  • Mobile terminal and method for reducing electromagnetic wave energy absorption ratio thereof
  • Mobile terminal and method for reducing electromagnetic wave energy absorption ratio thereof

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Embodiment Construction

[0023] The basic idea of ​​the present invention is to attach a wave-absorbing material to a Flexible Printed Circuit (FPC) located on a Liquid Crystal Display (LCD) of a mobile terminal to absorb electromagnetic wave energy radiated by the antenna.

[0024] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail by citing the following embodiments and referring to the accompanying drawings.

[0025] figure 1 shows the schematic structure of the mobile terminal of the present invention, refer to figure 1 , the mobile terminal includes an LCD, a motherboard 34, and an antenna 33; wherein, the LCD includes a display area 31 of the LCD and an FPC 32 located below the LCD display area 31, and the absorbing material is located on the FPC 32 for absorbing the radiation of the antenna 33 electromagnetic wave energy.

[0026] Among them, the antenna 33 is a device for sending and recei...

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Abstract

The invention provides a mobile terminal and a method for reducing the electromagnetic wave energy absorption ratio thereof. The method comprises the following steps of: determining to arrange a wave-absorbing material on a flexible printed circuit (FPC) of an LCD (Liquid Crystal Display) in the mobile terminal; and attaching the wave-absorbing material to the FPC to absorb the electromagnetic wave energy radiated by an antenna of the mobile terminal. By using a method of adding the wave-absorbing material at the specific position of the mobile terminal, the invention not only reduces the SAR (Synthetic Aperture Radar) value of the mobile terminal, but also ensures that the TRP (Transmission Reference Point) of the mobile terminal is not reduced. Therefore, the influence of the mobile terminal on the human radiation can be reduced on the premise without influencing the calling quality and the appearance of the mobile terminal; meanwhile, the method is easier to realize.

Description

technical field [0001] The present invention relates to the field of mobile terminals, in particular to a mobile terminal and a method for reducing its electromagnetic wave energy absorption ratio (Specific Absorption Rate, SAR). Background technique [0002] Due to the rapid development of communication technologies using mobile terminals, mobile terminals have become very popular, and the average usage time of mobile terminals is also rapidly increasing. Therefore, more and more attention has been paid to whether the electromagnetic waves radiated by the mobile terminal have harmful effects on the human body. [0003] SAR is generally used as a numerical value indicating the degree of harm to the human body caused by electromagnetic waves radiated from mobile terminals. SAR is the electric power absorbed per unit mass of a human body unit, and the unit of measurement is W / Kg. In practical applications, since it is difficult to directly measure the human body, a human body...

Claims

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Application Information

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IPC IPC(8): H05K9/00H04M1/02
CPCH04B1/3838
Inventor 刘锋昱
Owner ZTE CORP
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