Common radiator dual antenna
A radiator and dual-antenna technology, applied in the directions of antenna, antenna coupling, resonant antenna, etc., can solve the problems affecting the detection ability of the sensing module and the reduction of the maximum separation distance, so as to improve the sensing distance, reduce the volume and cost effect
Pending Publication Date: 2022-03-01
南京矽力微电子(香港)有限公司
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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
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[0036] 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.
[0037] 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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A common radiator double antenna comprises a radiator unit, a first feed-in part unit, a second feed-in part unit, a sensing module and a grounding unit. The first feed-in part unit and the second feed-in part unit are respectively coupled with the radiator unit; the sensing module is connected to the substantially central position of the radiator unit, and the sensing module is used for sensing the spacing distance between the radiator unit and an external object through the radiator unit. And the grounding unit is connected with the sensing module, and the first feed-in part unit and the second feed-in part unit are respectively used for sending or receiving the first radio frequency signal or the second radio frequency signal together with the radiator unit.
Description
technical field [0001] The present invention relates to a common radiator dual antenna, in particular to a common radiator dual antenna applied to 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...
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IPC IPC(8): H01Q1/50H01Q1/48H01Q1/52H01Q1/36
CPCH01Q1/50H01Q1/48H01Q1/52H01Q1/36H01Q9/42H04B1/3838H01Q1/245G01D5/24H01Q5/314
Inventor 张嘉麟
Owner 南京矽力微电子(香港)有限公司