Method for adjusting specific absorbance and device for adjusting specific absorbance
A technology of specific absorption rate and tuning capacitance, which is applied in the field of devices for adjusting specific absorption rate and adjusting specific absorption rate, can solve the problems of waste of resources, occupying antenna headroom, increasing cost, etc., so as to reduce the specific absorption rate and optimize the performance of the antenna. Effect
Inactive Publication Date: 2019-01-25
SHENZHEN TINNO WIRELESS TECH +1
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[0004] Its disadvantage is mainly that it will affect the user's call, browsing and video; in the scheme of reducing the specific absorption rate of the mobile terminal through the capacitive sensor, it is necessary to increase the sensor device on the relatively tight antenna headroom or place the sensor integrated circuit on the In the antenna loop, this increases the cost while occupying the antenna clearance, which causes a waste of resources
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[0031] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0032] figure 1 It is a schematic flow chart of adjusting the SAR of a mobile device according to an embodiment of the present invention. Figure 5a-Figure 5f It is a schematic diagram of placement of a mobile device relative to a test device according to an embodiment of the present invention. Such as figure 1 with Figure 5a-Figure 5f Shown:
[0033] 110: Determine the specific absorption rate of the mobile device when the mobile device is ...
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The present invention provides a method and device for adjusting specific absorbance. A method for adjusting specific absorbance includes determining specific absorbance of a mobile device containingsimulated human tissue fluid when the mobile device is positioned at a preset placement position relative to a test device, and determining specific absorbance of the mobile device when the mobile device is positioned relative to the test device. When the specific absorptivity is greater than a preset specific absorptivity threshold, the tunable capacitance connected to at least one antenna of themobile device is adjusted to reduce the specific absorptivity. By setting a tunable capacitor near the antenna of the mobile terminal, the specific absorptivity of the mobile device can be reduced and the antenna performance can be optimized when the specific absorptivity is greater than the preset specific absorptivity.
Description
technical field [0001] The invention relates to the communication field, in particular to a method and a device for adjusting the specific absorption rate. Background technique [0002] The mobile terminal has become an indispensable communication tool, but the radiation of the mobile terminal's transmission power to the human body has also attracted the attention of various countries and organizations. [0003] At present, the schemes to reduce the transmission power of the mobile terminal mainly include: reducing the omnidirectional radiation power of the antenna of the mobile terminal by forcibly reducing the radio frequency conduction power; reducing the power by using a capacitive sensor sensing distance to reduce the specific absorption rate of the mobile terminal; Forcibly reducing the radio frequency conduction power reduces the remote control performance in the antenna of the mobile terminal, and achieves the purpose of reducing the specific absorption rate of the m...
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IPC IPC(8): H04M1/24H04W52/18H04B1/3827
CPCH04B1/3838H04M1/24H04W52/18
Inventor 刘支援张莲谢圣银
Owner SHENZHEN TINNO WIRELESS TECH