CN220234682U - Antenna device and intelligent terminal - Google Patents
Antenna device and intelligent terminal Download PDFInfo
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- CN220234682U CN220234682U CN202322155870.3U CN202322155870U CN220234682U CN 220234682 U CN220234682 U CN 220234682U CN 202322155870 U CN202322155870 U CN 202322155870U CN 220234682 U CN220234682 U CN 220234682U
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- 230000006698 induction Effects 0.000 claims abstract description 14
- 238000013459 approach Methods 0.000 claims abstract description 6
- 239000002184 metal Substances 0.000 claims description 43
- 229910052751 metal Inorganic materials 0.000 claims description 43
- 150000002739 metals Chemical class 0.000 claims description 7
- 230000001939 inductive effect Effects 0.000 claims description 4
- 230000005855 radiation Effects 0.000 description 9
- 238000010586 diagram Methods 0.000 description 5
- 230000000903 blocking effect Effects 0.000 description 3
- 239000003990 capacitor Substances 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005670 electromagnetic radiation Effects 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
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Abstract
The antenna device comprises an antenna, a capacitance sensor and a control circuit, wherein the antenna and the capacitance sensor are respectively and electrically connected with the control circuit, the antenna is arranged adjacent to the capacitance sensor, the capacitance sensor is used for detecting a capacitance value when a human body approaches, and sending an induction signal to the control circuit when the capacitance value is greater than or equal to a set threshold value, and the control circuit is used for reducing the power of the antenna according to the induction signal. The antenna device disclosed by the utility model is more sensitive in capacitance induction and can reduce the design difficulty and the production cost.
Description
Technical Field
The utility model belongs to the technical field of antennas, and particularly relates to an antenna device and an intelligent terminal.
Background
Electromagnetic wave absorption ratio (Specific Absorption Rate; SAR) detection techniques can reduce electromagnetic radiation and reduce injury to users. However, in the related art, an antenna body is generally adopted as a sensing area, and a circuit and a plurality of blocking capacitors are additionally added in an antenna matching circuit, so that the problems of insufficient antenna sensing distance, low sensitivity, high debugging difficulty and the like are caused.
Disclosure of Invention
In view of this, the present utility model provides an antenna device, which has more sensitive capacitive sensing and can reduce design difficulty and production cost.
The antenna device comprises an antenna, a capacitance sensor and a control circuit, wherein the antenna and the capacitance sensor are respectively and electrically connected with the control circuit, the antenna is arranged adjacent to the capacitance sensor, the capacitance sensor is used for detecting a capacitance value when a human body approaches, and sending an induction signal to the control circuit when the capacitance value is larger than or equal to a set threshold value, and the control circuit is used for reducing the power of the antenna according to the induction signal.
In an embodiment of the utility model, the capacitive sensor includes at least one sensing metal and a sensing chip, the sensing metal is disposed adjacent to the antenna, the sensing chip is electrically connected to the sensing metal through a first circuit, the sensing chip is electrically connected to the control circuit through a second circuit, and the sensing chip is used for detecting a capacitance of the sensing metal.
In an embodiment of the present utility model, the sensing metal is in a sheet shape.
In an embodiment of the present utility model, the antenna includes at least one radiating portion, and a feeding portion and a grounding portion connected to the radiating portion, and the inductive metal is disposed adjacent to the radiating portion.
In an embodiment of the present utility model, the antenna includes at least two radiating portions, and the sensing metal is disposed adjacent to at least one of the radiating portions, or disposed between two adjacent radiating portions.
In an embodiment of the present utility model, the antenna includes at least two radiating portions, the capacitive sensor includes at least two sensing metals, each of the sensing metals is disposed in parallel with each other, and each of the sensing metals is disposed corresponding to each of the radiating portions.
In an embodiment of the utility model, at least two of the radiating portions are BT/WI F I radiating portions or GPS radiating portions, respectively.
In an embodiment of the utility model, the antenna device further includes a circuit board, the control circuit is formed on the circuit board, a first conductive member and a second conductive member are electrically connected to the circuit board, the first conductive member is electrically connected to the feeding portion, and the second conductive member is electrically connected to the grounding portion.
In an embodiment of the present utility model, the antenna device further includes a bracket, and the antenna and the sensing metal are mounted on the bracket.
The utility model also relates to an intelligent terminal comprising the antenna device.
The capacitive sensor is arranged adjacent to the antenna, and the capacitive sensor and the antenna are not electrically connected, so that the problem that a large number of matching circuits are required to be added when the antenna is used as a capacitive sensing area is solved, and a plurality of blocking capacitors are not required to be added, so that the sensing distance is increased, the capacitive sensing is more sensitive, and the design difficulty and the production cost can be reduced. The capacitive sensor is arranged in the ornament area of the antenna, an installation area is not required to be reserved independently, the capacitive sensor can cover the range of the antenna hot spot more conveniently, and the power of the antenna can be adjusted rapidly.
Drawings
Fig. 1 is a schematic diagram of an antenna device of the present utility model.
Fig. 2 is a schematic structural view of the antenna device of the present utility model.
Fig. 3 is a schematic diagram of an antenna device according to another embodiment of the present utility model.
Detailed Description
Further advantages and effects of the present utility model will become apparent to those skilled in the art from the disclosure of the present utility model, which is described by the following specific examples.
In the following description, reference is made to the accompanying drawings which describe several embodiments of the utility model. It is to be understood that other embodiments may be utilized and that mechanical, structural, electrical, and operational changes may be made without departing from the spirit and scope of the present utility model. The following detailed description is not to be taken in a limiting sense, and the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model.
Although the terms first, second, etc. may be used herein to describe various elements in some examples, these elements should not be limited by these terms. These terms are only used to distinguish one element from another element.
Furthermore, as used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context indicates otherwise. It will be further understood that the terms "comprises," "comprising," "includes," and/or "including" specify the presence of stated features, steps, operations, elements, components, items, categories, and/or groups, but do not preclude the presence, presence or addition of one or more other features, steps, operations, elements, components, items, categories, and/or groups. The terms "or" and/or "as used herein are to be construed as inclusive, or meaning any one or any combination. Thus, "A, B or C" or "A, B and/or C" means "any of the following: a, A is as follows; b, a step of preparing a composite material; c, performing operation; a and B; a and C; b and C; A. b and C). An exception to this definition will occur only when a combination of elements, functions, steps or operations are in some way inherently mutually exclusive.
Fig. 1 is a schematic diagram of an antenna device according to the present utility model, and fig. 2 is a schematic diagram of a structure of the antenna device according to the present utility model, as shown in fig. 1 and 2, the antenna device includes an antenna 11, a capacitive sensor 12, and a control circuit 13, wherein the antenna 11 and the capacitive sensor 12 are respectively electrically connected to the control circuit 13, the antenna 11 is disposed adjacent to the capacitive sensor 12, the capacitive sensor 12 is configured to detect a capacitance value when a human body approaches, and generate an induction signal to the control circuit 13 when the capacitance value is greater than or equal to a set threshold, and the control circuit 13 is configured to reduce power of the antenna 11 according to the induction signal.
When a human body approaches the antenna device, the capacitance value of the capacitance sensor 12 changes, the closer the distance between the human body and the antenna device is, the larger the change of the capacitance value is, and when the capacitance value is larger than or equal to a set threshold value, an induction signal is sent to the control circuit 13, and the control circuit 13 reduces the power of the antenna 11 according to the induction signal, so that the damage of electromagnetic waves to the human body is reduced.
The capacitive sensor 12 is arranged adjacent to the antenna 11, and the capacitive sensor 12 and the antenna are not electrically connected, so that the problem that a large number of matching circuits are required to be added when the antenna 11 is used as a capacitive sensing area is solved, and a plurality of blocking capacitors are not required to be added, so that the sensing distance is increased, the capacitive sensing is more sensitive, and the design difficulty and the production cost can be reduced. The capacitive sensor 12 is arranged in the ornament area of the antenna 11, an installation area is not required to be reserved independently, the capacitive sensor 12 can cover the hot spot range of the antenna 11 more conveniently, and the power of the antenna 11 can be regulated quickly.
Optionally, the capacitive sensor 12 includes at least one sensing metal 121 and a sensing chip 122, the sensing metal 121 is disposed adjacent to the antenna 11, the sensing chip 122 is electrically connected to the sensing metal 121 through a first circuit, the sensing chip 122 is electrically connected to the control circuit 13 through a second circuit, and the sensing chip 122 is used for detecting the capacitance of the sensing metal 121. When a human body approaches the antenna device, the capacitance value of the sensing metal 121 changes, the closer the human body is to the sensing metal 121, the larger the change of the capacitance value is, the sensing chip 122 detects the capacitance value of the sensing metal 121, and when the capacitance value is greater than or equal to a set threshold value, a sensing signal is sent to the control circuit 13.
Alternatively, as shown in fig. 2, the sensing metal 121 is in a sheet shape, for example, the sensing metal 121 is rectangular, circular, square, polygonal, etc., and can be freely designed according to practical needs.
Alternatively, as shown in fig. 2, the antenna 11 includes at least one radiating portion 112, and a feeding portion (not shown) and a grounding portion (not shown) connected to the radiating portion 112, and the sensing metal 121 is disposed adjacent to the radiating portion 112.
Alternatively, as shown in fig. 2, the antenna 11 includes at least two radiating portions 112, and the sensing metal 121 is disposed adjacent to at least one of the radiating portions 112, or the sensing metal 121 is disposed between the adjacent two radiating portions 112. As shown in fig. 2, three radiation portions 112 are illustrated, the three radiation portions 112 are disposed around the periphery of the sensing metal 121, and the three radiation portions 112 are a first radiation portion 112, a second radiation portion 112, and a third radiation portion 112, respectively; the first radiation part 112 and the induction metal 121 have a first set distance therebetween, and the first set distance is greater than 0 and less than or equal to 3cm; a second set distance is arranged between the second radiation part 112 and the induction metal 121, and the second set distance is more than 0 and less than or equal to 3cm; the third radiation portion 112 has a third set distance from the sensing metal 121, and the third set distance is greater than 0 and less than or equal to 3cm.
Alternatively, fig. 3 is a schematic diagram of an antenna device according to another embodiment of the present utility model, as shown in fig. 3, the antenna 11 includes at least two radiating portions 112, the capacitive sensor 12 includes at least two sensing metals 121, each sensing metal 121 is disposed in parallel with each other, and each sensing metal 121 is disposed corresponding to each radiating portion 112.
Optionally, the at least two radiating portions 112 are BT/WI F I radiating portions 112 and/or GPS radiating portions 112, respectively.
Optionally, the antenna device further includes a circuit board (not shown), the control circuit 13 is formed on the circuit board, and the circuit board is electrically connected to a first conductive member and a second conductive member, where the first conductive member is electrically connected to the feeding portion, and the second conductive member is electrically connected to the grounding portion.
Optionally, as shown in fig. 2, the antenna device further includes a bracket 14, and the antenna 11 and the sensing metal 121 are mounted on the bracket 14. In this embodiment, the stand 14 is made of an insulating material for carrying the antenna 11 and the sensing metal 121.
The utility model also relates to an intelligent terminal comprising the antenna device.
The above embodiments are merely illustrative of the principles of the present utility model and its effectiveness, and are not intended to limit the utility model. Modifications and variations may be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the utility model. Accordingly, it is intended that all equivalent modifications and variations of the utility model be covered by the claims, which are within the ordinary skill of the art, be within the spirit and scope of the present disclosure.
Claims (10)
1. The antenna device is characterized by comprising an antenna, a capacitance sensor and a control circuit, wherein the antenna and the capacitance sensor are respectively and electrically connected with the control circuit, the antenna and the capacitance sensor are adjacently arranged, the capacitance sensor is used for detecting a capacitance value when a human body approaches, and sending an induction signal to the control circuit when the capacitance value is greater than or equal to a set threshold value, and the control circuit is used for reducing the power of the antenna according to the induction signal.
2. The antenna assembly of claim 1 wherein the capacitive sensor includes at least one sensing metal disposed adjacent the antenna and a sensing chip electrically connected to the sensing metal through a first circuit and electrically connected to the control circuit through a second circuit, the sensing chip being configured to detect a capacitance of the sensing metal.
3. The antenna device of claim 2, wherein the inductive metal is sheet-like.
4. The antenna device according to claim 2, wherein the antenna includes at least one radiating portion, and a feeding portion and a grounding portion connected to the radiating portion, the induction metal being disposed adjacent to the radiating portion.
5. The antenna device of claim 4, wherein the antenna comprises at least two of the radiating portions, the inductive metal is disposed adjacent at least one of the radiating portions, or the inductive metal is disposed between adjacent two of the radiating portions.
6. The antenna device according to claim 4, wherein the antenna includes at least two of the radiating portions, the capacitive sensor includes at least two of the sensing metals, each of the sensing metals is disposed in parallel with each other, and each of the sensing metals is disposed corresponding to each of the radiating portions.
7. The antenna device according to claim 5 or 6, wherein at least two of said radiating portions are BT/WIFI radiating portions or GPS radiating portions, respectively.
8. The antenna device of claim 4, further comprising a circuit board, wherein the control circuit is formed on the circuit board, wherein a first conductive member and a second conductive member are electrically connected to the circuit board, wherein the first conductive member is electrically connected to the feeding portion, and wherein the second conductive member is electrically connected to the grounding portion.
9. The antenna assembly of claim 4 further comprising a bracket, said antenna and said sensing metal being mounted on said bracket.
10. An intelligent terminal comprising an antenna arrangement according to any of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322155870.3U CN220234682U (en) | 2023-08-10 | 2023-08-10 | Antenna device and intelligent terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322155870.3U CN220234682U (en) | 2023-08-10 | 2023-08-10 | Antenna device and intelligent terminal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220234682U true CN220234682U (en) | 2023-12-22 |
Family
ID=89197344
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322155870.3U Active CN220234682U (en) | 2023-08-10 | 2023-08-10 | Antenna device and intelligent terminal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220234682U (en) |
-
2023
- 2023-08-10 CN CN202322155870.3U patent/CN220234682U/en active Active
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