CN207818898U - Antenna assembly and mobile terminal - Google Patents
Antenna assembly and mobile terminal Download PDFInfo
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- CN207818898U CN207818898U CN201721889690.6U CN201721889690U CN207818898U CN 207818898 U CN207818898 U CN 207818898U CN 201721889690 U CN201721889690 U CN 201721889690U CN 207818898 U CN207818898 U CN 207818898U
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- feed point
- antenna assembly
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Abstract
A kind of antenna assembly of the application offer and mobile terminal, wherein antenna assembly, including：Antenna module, the antenna module are connected by feed point with mainboard；Surround the feed point and between the feed point at a distance from be more than first threshold ground level.At a distance from as a result, by increase feed point between ground level, realize under the premise of not reducing transmission power, reduce the SAR value at feed point, the harm for reducing Radiation On Human body avoids the generation of the communication failure caused by transmission power is relatively low under weak signal environment, improves user experience.
Description
Technical field
This application involves antenna technical field more particularly to a kind of antenna assemblies and mobile terminal.
Background technology
Concern with the development and people of mobile communication technology to self electromagnetism radiation safety, specific absorption rate
(Specific Absorption Ratio, abbreviation SAR) value, is increasingly valued by people, can be with the unit of measurement time
The electromagnetic radiation energy of the material absorbing of interior unit mass.By taking mobile phone radiation as an example, SAR value is higher, and radiation is inhaled by the brain of people
The amount of receipts is higher, bigger to the harm of human body.Therefore, the SAR value for how reducing mobile terminal, for reducing Radiation On Human body
Harm is of great significance.
The prior art is to reduce the SAR of mobile terminal by way of intelligent detection mechanism rollback transmission power mostly
Value.By taking mobile phone as an example, when the head of people is close to mobile phone, you can start transmission power fallback mechanism, to reduce SAR value.However,
This mode can make under some weak signal environments, lead to communication failure since transmission power is relatively low, influence mobile terminal
Use, user experience is bad.
Utility model content
The utility model is intended to solve at least some of the technical problems in related technologies.
For this purpose, the utility model proposes a kind of antenna assembly, by increase feed point between ground level at a distance from, realize
Under the premise of not reducing transmission power, the SAR value at feed point is reduced, the harm of Radiation On Human body is reduced, avoids in weak letter
Under number environment caused by transmission power is relatively low communication failure generation, improve user experience.
The utility model also proposes a kind of mobile terminal.
The antenna assembly that the utility model embodiment proposes, including：
Antenna module, the antenna module are connected by feed point with mainboard；
Surround the feed point and between the feed point at a distance from be more than first threshold ground level.
Antenna assembly as described above, the feed point between the ground level at a distance from be less than second threshold.
Antenna assembly as described above, the first threshold are 1 millimeter, and the second threshold is 3 millimeters.
Antenna assembly as described above further includes：
At least one shunt assembly being connected between the feed point and the ground level.
Antenna assembly as described above, the shunt assembly include the electricity being connected between the feed point and the ground level
Sense.
The inductance value of antenna assembly as described above, the inductance is more than 80 sodium henry.
Antenna assembly as described above further includes：
The adjusting apparatus being connected between the antenna module and the mainboard, the adjusting apparatus include：
Multiple matching devices parallel with one another；
The concatenated switching device of device is matched with the multiple, the switching device is for selecting the multiple matching device
At least one of conducting.
Antenna assembly as described above, the matching device include parallel with one another or concatenated capacitance and inductance.
Antenna assembly as described above, the matching device further include：With the resistance of the capacitance and inductance in parallel.
The utility model embodiment also proposed a kind of mobile terminal, including antenna assembly as described in relation to the first aspect.
The technical solution that the utility model embodiment provides has the advantages that：
By increase feed point between ground level at a distance from, realize under the premise of not reducing transmission power, reduce feed point
The SAR value at place reduces the harm of Radiation On Human body, avoids under weak signal environment caused by transmission power is relatively low
The generation of communication failure, improves user experience.
Description of the drawings
The utility model is above-mentioned and/or additional aspect and advantage from the following description of the accompanying drawings of embodiments will
Become apparent and is readily appreciated that, wherein：
Fig. 1 is the structural schematic diagram of the antenna assembly of the application one embodiment；
Fig. 2 is the structural schematic diagram of the antenna assembly of the application another embodiment；
Fig. 3 is the structural schematic diagram of the antenna assembly of the application another embodiment.
Reference sign：
Antenna module -11；Feed point -12；Mainboard -13；
Ground level -14；Shunt assembly -15；Adjusting apparatus -16；
Match device -161；Switching device -162；Antenna assembly -10；
Current direction path -1；Path -2.
Specific implementation mode
The embodiments of the present invention are described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning
Same or similar element or element with the same or similar functions are indicated to same or similar label eventually.Below by ginseng
The embodiment for examining attached drawing description is exemplary, it is intended to for explaining the utility model, and should not be understood as to the utility model
Limitation.
Various embodiments of the utility model is directed to the prior art, is the side by intelligent detection mechanism rollback transmission power mostly
Formula reduces SAR value, and this mode can make under some weak signal environments, due to transmission power it is relatively low and lead to communication therefore
Barrier, influences the use of mobile terminal, the bad problem of user experience proposes a kind of antenna assembly.
The antenna assembly that the utility model embodiment proposes, includes the antenna module being connected with mainboard by feed point, and packet
Enclose feed point and between feed point at a distance from be more than first threshold ground level.By increase feed point between ground level at a distance from, realize
Under the premise of not reducing transmission power, the SAR value at feed point is reduced, the harm of Radiation On Human body is reduced, avoids
Under weak signal environment caused by transmission power is relatively low communication failure generation, improve user experience.
The antenna assembly and mobile terminal that are itd is proposed according to the utility model embodiment described with reference to the accompanying drawings.
Fig. 1 is the structural schematic diagram of the antenna assembly of the application one embodiment.
As shown in Figure 1, antenna assembly, including：
Antenna module 11, antenna module 11 are connected by feed point 12 with mainboard 13；
Surround feed point 12 and between feed point 12 at a distance from be more than first threshold ground level 14.
Specifically, antenna assembly provided by the embodiments of the present application, can be arranged in any mobile terminal, so that the movement
Terminal realizes communication function with lower SAR value.
Wherein, first threshold can be arranged according to the working frequency of antenna assembly in mobile terminal.For example, antenna
When the working frequency of device is in 1710-2690 megahertzs of (MHz) range, first threshold can be 1 millimeter.
It should be noted that the refer to the attached drawing in the application is to schematically illustrate, it is intended to for explaining the application, without
It can be interpreted as the limitation to the application.
It is understood that in general, ground level 14 is tightly wrapped in around feed point 12.Since antenna module 11 has been reduced to
Single-arm antenna, another arm thus arm be mirrored to ground level 14 electric current generate, therefore, when ground level 14 is tightly wrapped in feed point
When 12 surrounding, current direction path area very little, when this has resulted in antenna assembly and is operated in some frequency range (such as medium-high frequency),
Electric current at feed point 12 is excessively concentrated, to generate SAR value hot spot.In the utility model embodiment, by the way that feed point will be surrounded
12 ground level 14 between feed point 12 at a distance from be increased to more than first threshold so that current direction path area becomes larger, to
Keep the current distribution at feed point 12 more dispersed, current distribution reduces at hot spot, thereby reduces antenna assembly and is operated in medium-high frequency
SAR value when section at contact 12.
Wherein, feed point 12 between ground level 14 at a distance from be more than first threshold when, current direction path can be Fig. 1 in
Shown in dotted line 1.
It should be noted that due to feed point 12 between ground level 14 at a distance from it is excessive when, the efficiency of medium-high frequency antenna assembly
And resonant frequency length is long, can weaken antenna assembly efficiency, and antenna assembly cannot be operated in effective frequency range, therefore feed point 12
It cannot be excessive at a distance between ground level 14.That is, in the utility model embodiment, feed point 12 between ground level 14 at a distance from can
To be less than second threshold.
Wherein, second threshold can be arranged according to the working frequency of antenna assembly.For example, the work of antenna assembly
When frequency is within the scope of 1710-2690MHz, second threshold can be 3 millimeters.
Antenna assembly provided in this embodiment, by increasing the distance between feed point and ground level, realizing is not reducing
Under the premise of transmission power, the SAR value at feed point is reduced, the harm of Radiation On Human body is reduced, avoids in weak signal environment
Under caused by transmission power is relatively low communication failure generation, improve user experience.
Fig. 2 is the structural schematic diagram of the antenna assembly of the application another embodiment.
As shown in Fig. 2, on the basis of shown in Fig. 1, antenna assembly further includes：
At least one shunt assembly 15 being connected between feed point 12 and ground level 14.Fig. 2 includes one point with antenna assembly
Illustrated for stream component 15.
Wherein, shunt assembly 15 can arbitrarily be disperseed at feed point 12, be mirrored to ground level 14 by single-arm antenna
The component of electric current, is not restricted herein.
In the present embodiment, shunt assembly 15 includes the inductance being connected between feed point 12 and ground level 14.
Wherein, the inductance value of inductance can be arranged according to the working frequency of antenna assembly.The working frequency of antenna assembly is got over
Height, the inductance value that inductance can be arranged are bigger.For example, when the working frequency of antenna assembly is 1710-2690MHz, the electricity of inductance
Sensibility reciprocal could be provided as 80 nanohenrys (NH).
It is understood that since inductance has the characteristic of " logical low frequency hinders high frequency ", it is connected to feed point 12 and Horizon
Inductance between face 14, can be by the electric current for flowing through feed point 12, and low-frequency current is distributed in path 2.By disperseing at feed point 12
Electric current further reduced the SAR value at feed point 12.And then on the basis of scheme shown in Fig. 1, it further reduced antenna
Device is operated in SAR value when medium-high frequency section.
Antenna assembly provided in this embodiment is reduced by increasing the distance between feed point and ground level at feed point
SAR value, and shunt assembly is set between feed point and ground level, under the premise of not reducing transmission power, further drop
SAR value at low feed point, reduces the harm of Radiation On Human body, avoids under weak signal environment since transmission power is relatively low
Caused by communication failure generation, improve user experience.
Fig. 3 is the structural schematic diagram of the antenna assembly of the application another embodiment.
As shown in figure 3, on the basis of shown in Fig. 2, antenna assembly further includes：
The adjusting apparatus 16 being connected between antenna module 11 and mainboard 13, adjusting apparatus 16 include：
Multiple matching devices 161 parallel with one another；
161 concatenated switching device 162 of device is matched with multiple, switching device 162 is for selecting multiple matching devices 161
At least one of conducting.
Specifically, above-mentioned matching device 161 includes parallel with one another or concatenated capacitance and inductance.
Wherein, it may include the inductance of different values in the matching branch of matching device 161, realize different matching branches
With different resonant frequencies, to which when switching device 162 is connected from different matching devices 161, antenna module 11 can
To cover different frequency ranges, to make the antenna of mobile terminal cover the whole world such as 699MHz-960MHz, 1710MHz-2690MHz
Mobile communication frequency range.
In addition, adjusting apparatus 16 can also include control device, control device is used to control switching device 162,
To allow switching device 162 to be connected from different matching devices 161.
It should be noted that in order to reduce the impedance of matching device 161, which further includes：With capacitance and electricity
Feel resistance in parallel.
Antenna assembly provided in this embodiment, by increase feed point between ground level at a distance from, and in feed point and ground level
Between shunt assembly is set, realize under the premise of not reducing transmission power, reduce feed point at SAR value, reduce radiation
Harm to human body avoids the generation of the communication failure caused by transmission power is relatively low under weak signal environment, improves
User experience, and by accessing adjusting apparatus between antenna module and mainboard, frequency range is covered to increase antenna assembly so that
Antenna module utilizes smaller space, realizes the covering to more Netcoms.
The application also proposes a kind of mobile terminal, including antenna assembly.
Wherein, above-mentioned Fig. 1, Fig. 2 or shown in Fig. 3 form may be used in the structure of the antenna assembly.
Specifically, mobile terminal provided by the embodiments of the present application, can be mobile phone, or arbitrarily have communication function
Other terminals, such as laptop, IPAD.
It should be noted that the aforementioned mobile end for being also applied for the embodiment to the explanation of antenna assembly embodiment
End, realization principle is similar, and details are not described herein again.
In mobile terminal provided by the embodiments of the present application, antenna assembly includes the antenna sets being connected with mainboard by feed point
Part, and surround feed point and between feed point at a distance from be more than first threshold ground level.By increase between feed point and ground level away from
From, realize under the premise of not reducing transmission power, reduce feed point at SAR value, reduce the harm of Radiation On Human body, keep away
The generation for having exempted from the communication failure caused by transmission power is relatively low under weak signal environment, improves user experience.
In the description of the present invention, it should be understood that the side of the instructions such as term " area ", " width ", " circumferential direction "
Position or position relationship are to be based on the orientation or positional relationship shown in the drawings, and are merely for convenience of description the utility model and simplification is retouched
It states, does not indicate or imply the indicated device or element must have a particular orientation, with specific azimuth configuration and operation,
Therefore it should not be understood as limiting the present invention.
In the present invention unless specifically defined or limited otherwise, the terms such as term " setting ", " connection " should be done extensively
Reason and good sense solution, for example, it may be mechanical connection, can also be electrical connection；It can be directly connected, it can also be by between intermediary
It connects connected, can be the interaction relationship of the connection or two elements inside two elements, unless otherwise restricted clearly.It is right
For those skilled in the art, it can understand that above-mentioned term in the present invention specific contains as the case may be
Justice.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or spy described in conjunction with this embodiment or example
Point is contained in the M embodiment or example of the utility model.In the present specification, schematic expression of the above terms need not
It must be directed to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be any
It can be combined in any suitable manner in a or multiple embodiments or example.In addition, without conflicting with each other, the technology of this field
The feature of different embodiments or examples described in this specification and different embodiments or examples can be combined by personnel
And combination.
Although the embodiments of the present invention have been shown and described above, it is to be understood that above-described embodiment is
Illustratively, it should not be understood as limiting the present invention, those skilled in the art are in the scope of the utility model
Inside it can make changes, modifications, alterations, and variations to the above described embodiments.
Claims (10)
1. a kind of antenna assembly, which is characterized in that including：
Antenna module, the antenna module are connected by feed point with mainboard；
Surround the feed point and between the feed point at a distance from be more than first threshold ground level.
2. antenna assembly as described in claim 1, which is characterized in that the feed point between the ground level at a distance from be less than the
Two threshold values.
3. antenna assembly as claimed in claim 2, which is characterized in that the first threshold is 1 millimeter, and the second threshold is
3 millimeters.
4. antenna assembly as described in any one of claims 1-3, which is characterized in that further include：
At least one shunt assembly being connected between the feed point and the ground level.
5. antenna assembly as claimed in claim 4, which is characterized in that the shunt assembly includes being connected to the feed point and institute
State the inductance between ground level.
6. antenna assembly as claimed in claim 5, which is characterized in that it is prosperous that the inductance value of the inductance is more than 80 sodium.
7. antenna assembly as claimed in claim 4, which is characterized in that further include：
The adjusting apparatus being connected between the antenna module and the mainboard, the adjusting apparatus include：
Multiple matching devices parallel with one another；
The concatenated switching device of device is matched with the multiple, the switching device is for selecting in the multiple matching device
At least one conducting.
8. antenna assembly as claimed in claim 7, which is characterized in that the matching device includes parallel with one another or concatenated electricity
Appearance and inductance.
9. antenna assembly as claimed in claim 8, which is characterized in that the matching device further includes：With the capacitance and electricity
Feel resistance in parallel.
10. a kind of mobile terminal, which is characterized in that include the antenna assembly as described in claim 1-9 is any.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721889690.6U CN207818898U (en) | 2017-12-27 | 2017-12-27 | Antenna assembly and mobile terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721889690.6U CN207818898U (en) | 2017-12-27 | 2017-12-27 | Antenna assembly and mobile terminal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207818898U true CN207818898U (en) | 2018-09-04 |
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ID=63328421
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721889690.6U Expired - Fee Related CN207818898U (en) | 2017-12-27 | 2017-12-27 | Antenna assembly and mobile terminal |
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| Country | Link |
|---|---|
| CN (1) | CN207818898U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110913064A (en) * | 2018-09-18 | 2020-03-24 | 青岛海信移动通信技术股份有限公司 | Method for controlling human body radiation absorptivity and mobile terminal |
| CN113573396A (en) * | 2020-04-28 | 2021-10-29 | 深圳市万普拉斯科技有限公司 | SAR value control method and device and mobile terminal |
-
2017
- 2017-12-27 CN CN201721889690.6U patent/CN207818898U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110913064A (en) * | 2018-09-18 | 2020-03-24 | 青岛海信移动通信技术股份有限公司 | Method for controlling human body radiation absorptivity and mobile terminal |
| CN113573396A (en) * | 2020-04-28 | 2021-10-29 | 深圳市万普拉斯科技有限公司 | SAR value control method and device and mobile terminal |
| CN113573396B (en) * | 2020-04-28 | 2022-11-08 | 深圳市万普拉斯科技有限公司 | SAR value control method and device and mobile terminal |
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| CP01 | Change in the name or title of a patent holder |
Address after: Changan town in Guangdong province Dongguan 523860 usha Beach Road No. 18 Patentee after: GUANGDONG OPPO MOBILE TELECOMMUNICATIONS Corp.,Ltd. Address before: Changan town in Guangdong province Dongguan 523860 usha Beach Road No. 18 Patentee before: GUANGDONG OPPO MOBILE TELECOMMUNICATIONS Corp.,Ltd. |
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| CP01 | Change in the name or title of a patent holder | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180904 |
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| CF01 | Termination of patent right due to non-payment of annual fee |