Terminal device with NFC antenna and control method thereof
A technology of terminal equipment and control method, applied in the field of electronics, can solve the problems of high manufacturing cost and occupying a large installation space, and achieve the effect of reducing control complexity and saving assembly space
Pending Publication Date: 2022-04-12
WUXI RUIQIN TECH CO LTD
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Problems solved by technology
[0005] The purpose of the present invention is to provide a terminal device with an NFC antenna and its control method to solve the problems of high manufacturing cost and large installation space due to the need to use a large number of SAR sensors
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[0038] In order to make the purpose, features and advantages of the present invention more obvious and understandable, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the following The described embodiments are only some, not all, embodiments of the present invention. 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.
[0039] see figure 1 , an embodiment of the present invention provides a terminal device, including:
[0040] NFC antenna, including connected NFC coil 1 and NFC chip;
[0041] At least one first antenna 3 is distributed within the preset distance range of the outer circumference of the NFC antenna, and the installation surface of the NF...
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Abstract
The invention relates to the technical field of electronics, and discloses terminal equipment with an NFC (Near Field Communication) antenna and a control method of the terminal equipment. The terminal device comprises: an NFC antenna comprising an NFC coil and an NFC chip which are connected with each other; the at least one first antenna is uniformly distributed in a preset distance range of the periphery of the NFC antenna, and the mounting surface of the NFC coil and the mounting surface of the first antenna are located on the same side surface; the SAR sensor is electrically connected with the NFC coil, the SAR sensor and the NFC coil are grounded through a first capacitor at the same time, and the SAR sensor is used for detecting the distance between the human body and the first antenna according to the variable quantity of the first capacitor; and the controller is used for carrying out SAR reduction processing on the at least one first antenna when the detection distance is smaller than a preset threshold value. According to the invention, the NFC antenna is used as the detection antenna of the SAR sensor to judge whether the SAR reduction processing operation on the first antenna needs to be triggered, so that the number of the SAR sensors is reduced, the assembly space is saved, and the control complexity is also reduced.
Description
technical field [0001] The present invention relates to the field of electronic technology, in particular to a terminal device with an NFC antenna and a control method thereof. Background technique [0002] SAR (Specific Absorption Rate, also known as Specific Absorption Rate or Electromagnetic Wave Absorption Ratio) is an indicator of the radiation of electronic equipment such as mobile phones to the human body. The size of SAR indicates the impact of electromagnetic radiation from electronic equipment on human health. , the lower the SAR value, the less radiation is absorbed by the body. [0003] In the face of SAR certification requirements, the traditional solution is to load a SAR sensor (SAR sensor) chip on a single transmitting antenna, and use the SAR sensor to detect the inductive capacitance value between the antenna and the human body to trigger the operation of reducing the radiation power of the current transmitting antenna, thereby reducing SAR value. [0004...
Claims
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Patent Timeline
Login to View More IPC IPC(8): H01Q1/52H01Q1/36H01Q1/24H01Q1/22H01Q23/00G01R29/08
Inventor 张阁王东章磊
Owner WUXI RUIQIN TECH CO LTD