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Common radiator single antenna

A radiator and single-antenna technology, applied in the direction of antenna, antenna coupling, antenna components, etc., can solve the problems of reducing the maximum separation distance and affecting the detection ability of the sensing module

Pending Publication Date: 2022-03-01
南京矽力微电子(香港)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the capacitors added in the prior art are generally ceramic capacitors, whose capacitance value varies according to the operating frequency of the antenna, which is about tens of pF, which is close to the upper limit of the detectable capacitance value of the sensing module. Therefore, the additional capacitor It will affect the detection ability of the sensing module, so that the maximum distance that can be sensed is reduced

Method used

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Embodiment Construction

[0024] The implementation of the present invention is described below with specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments.

[0025] It should be noted that the structures, proportions, sizes, etc. shown in the drawings attached to this specification are only used to match the content disclosed in the specification, for the understanding and reading of those familiar with this technology, and are not used to limit the implementation of the present invention Therefore, it has no technical substantive meaning. Any modification of structure, change of proportion or adjustment of size shall fall within the scope of the present invention without affecting the effect and purpose of the present invention. The disclosed technical content must be within the scop...

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Abstract

A common radiator single antenna comprises a radiator unit, a feed-in part unit, a sensing module and a grounding unit. The feed-in part unit is coupled with the radiator unit and is used for sending or receiving a radio frequency signal together with the radiator unit; the sensing module is connected with the radiator unit and is used for sensing the spacing distance between the radiator unit and an external object through the radiator unit; and a distributed capacitor structure is formed between the grounding unit and the radiator unit.

Description

technical field [0001] The invention relates to a common radiator single antenna, in particular to a common radiator single antenna applied to the human body absorption rate (Specificadsorption rate, SAR) test. Background technique [0002] Generally speaking, in order to avoid the electromagnetic waves generated by communication electronic products such as mobile phones or tablet computers from affecting human health, these electronic products need to pass the SAR test. In the prior art, a sensing module is electrically connected to the antenna of the electronic product to detect the distance between the antenna and the human body, and adjust the output power of the radio frequency signal according to the distance to meet the SAR test specification. Since the radio frequency signal used for communication is a high-frequency signal, and the sensing module judges the separation distance by detecting the change of the capacitance value of the antenna radiator, this is a low-fr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q1/52H01Q1/48H01Q1/50
CPCH01Q1/52H01Q1/48H01Q1/50H01Q1/245H01Q5/378H03K17/955H03K2217/960775H03K2217/960755H01Q1/36H01Q5/335H01Q5/328
Inventor 张嘉麟
Owner 南京矽力微电子(香港)有限公司