Wireless communication device

A wireless communication device and antenna technology, applied in the direction of antenna grounding switch structure connection, etc., can solve problems such as signal distortion, battery life reduction, and poor reception quality

Inactive Publication Date: 2014-12-31
中山市云创知识产权服务有限公司
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Problems solved by technology

[0002] With the vigorous development of wireless communication technology, wireless communication devices have become an indispensable part of people's lives. However, when using wireless communication devices, the human body will absorb electromagnetic waves and cause signal distortion, which will significantly deteriorate the quality of reception.
In order to reduce the effect of the human body on the reception strength of wireless communicat

Method used

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  • Wireless communication device

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Embodiment Construction

[0009] figure 1 Shown is a wireless communication device 100 for reducing electromagnetic wave energy absorption ratio (SAR value) disclosed in a preferred embodiment of the present invention. The wireless communication device 100 includes a circuit board 10 , an antenna 20 , a metal component 30 and an inductive reactance component 40 .

[0010] In this embodiment, the circuit board 10 is a PCB board of 100mm*50mm*1mm, on which a signal feeding part 11 and a grounding part 12 are arranged. The feed-in part 11 is the current signal output terminal on the circuit board 10. In this embodiment, the feed-in part 11 is a circular metal sheet, which is arranged on the circuit board 10 and communicates with the wireless communication device through the wiring on the circuit board 10. 100 is electrically connected to the main chip. Usually, the current signal at the central position of the feed-in part 11 is strong, and the current signal gradually decreases away from the central pos...

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Abstract

The invention provides a wireless communication device which comprises a circuit board, an antenna, a metal module and an inductive reactance module, wherein a feed part and an earthing part are arranged on the circuit board; a clearance area is arranged at the tail end of the circuit board; the antenna is arranged in the clearance area, and electrically connected with the feed part and the earthing part; the metal module is electrically connected with the feed part and the earthing part of the circuit board by the inductive reactance module, and arranged in the clearance area; and the metal module and the antenna are arranged at an interval. According to the wireless communication device, the metal module is arranged in a reasonable position of the clearance area of the antenna, and the energy of an area with higher current distribution on the antenna is reduced by adjusting an inductance value of the inductive reactance module in a fundamental mode without influencing signal transmitting or receiving of the antenna, so that the energy of a hotspot area originally influencing an SAR (Specific Absorption Rate) of the antenna is uniformly dispersed, absorption of an electromagnetic wave by a human body is reduced, and a purpose of reducing the SAR is achieved.

Description

technical field [0001] The invention relates to a wireless communication device, in particular to a wireless communication device capable of reducing the absorption ratio of electromagnetic wave energy. Background technique [0002] With the vigorous development of wireless communication technology, wireless communication devices have become an indispensable part of people's lives. However, when using wireless communication devices, the human body will absorb electromagnetic waves and cause signal distortion, which significantly deteriorates the quality of receiving messages. In order to reduce the effect of the human body on the reception strength of wireless communication devices, the existing method is to compensate for the problem of signal attenuation by increasing the transmission power, but this will result in a decrease in battery life and an increase in the Specific Absorption Rate (SAR) of electromagnetic waves , the SAR value is generally used as a numerical value...

Claims

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Application Information

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IPC IPC(8): H01Q1/50
Inventor 柯政宏何兆伟
Owner 中山市云创知识产权服务有限公司
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