CN205944397U - Bluetooth antenna - Google Patents
Bluetooth antenna Download PDFInfo
- Publication number
- CN205944397U CN205944397U CN201620608560.XU CN201620608560U CN205944397U CN 205944397 U CN205944397 U CN 205944397U CN 201620608560 U CN201620608560 U CN 201620608560U CN 205944397 U CN205944397 U CN 205944397U
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- antenna
- bluetooth
- branch
- bluetooth antenna
- antenna body
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Abstract
The utility model discloses a bluetooth antenna belongs to the antenna device field, include: circuit board, set up in the antenna body of circuit board one side and set up in the metal ground face of the opposite side that circuit board is relative, the metal clip and the distance between the antenna body that set up on bluetooth headset are less than the distance between metal clip and the metal ground face. Adopt the loop aerial structure through this bluetooth antenna to and setting up the metal ground face in bluetooth antenna's opposition side, bluetooth antenna's reflecting plate is regarded as simultaneously to this metal ground face, makes bluetooth headset when being close to human head and using, has guaranteed that bluetooth antenna is used for electromagnetic signal power towards the transmission in the other direction of transmission, thereby reduces human head to the influence of antenna performance decay, has reached stable antenna characteristic and the purpose that improves user experience.
Description
Technical field
This utility model is related to antenna assembly, particularly to a kind of Bluetooth antenna.
Background technology
Bluetooth is a kind of wireless communication technology for closely data transfer, obtains in a lot of terminal units at present
To being widely applied, such as bluetooth earphone.
Prior art due to lean on close of the head of antenna of Bluetooth headset and human body or is placed directly within ear, so
During using bluetooth earphone, following problem can be produced：Electromagnetic wave energy at a big chunk radiation while antenna transmission signal
Can be absorbed by the head interference of user, cause aerial radiation electromagnetic wave energy decay out a lot, cause antenna performance to be sent out
Change difference, leads to the problem of poor user experience；In addition, for be substantially reduced the impact to electromagenetic wave radiation performance for the human body head, with
When enable for transmission electromagnetic wave signal major part power radiate, certainly will need increase antenna design space,
And the position for designing antenna is very limited in bluetooth earphone.
Utility model content
The purpose of this utility model is the problems referred to above existing for prior art, provides a kind of Bluetooth antenna, this antenna
The impact that the head of human body is decayed can be reduced to antenna performance, with the mesh reaching stable antenna performance and improve Consumer's Experience
, technical scheme is as follows：
A kind of Bluetooth antenna, described Bluetooth antenna includes：
Circuit main board, it is arranged at the antenna body of described circuit main board side and is arranged at described circuit main board relatively
Opposite side Metal ground；
Be arranged at the distance between metal clip on bluetooth earphone and described antenna body less than described metal clip with described
The distance between Metal ground.
Preferably, described antenna body is loop aerial.
Preferably, the U-shaped structure of described antenna body, described antenna body includes the first branch, the antenna being sequentially connected
Department of Radiation and the second branch, described first branch is provided with feed end, and described second branch is provided with earth terminal, described feed end and institute
State earth terminal to be connected with described circuit main board respectively.
Preferably, described feed end is located at the junction in described aerial radiation portion and described first branch, described earth terminal
Junction positioned at described aerial radiation portion and described second branch.
Preferably, the material of described antenna body is at least one of copper, Nitinol, foreign copper-nickel alloy.
Preferably, the length range of described first branch is 10mm～20mm, and the length range of described second branch is
10mm～20mm.
Preferably, the length range in described aerial radiation portion is 52mm～62mm.
Preferably, described feed end and the spacing range of described earth terminal are 8mm～12mm.
Preferably, the length of described first branch is less than or equal to the length of described second branch.
Preferably, described metal clip and described antenna body not at grade, and described metal clip and described metal
There is between ground a difference in height.
The technical scheme that this utility model embodiment provides can include following beneficial effect：
Bluetooth antenna includes circuit main board, the antenna body being arranged at described circuit main board side and is arranged at described
The Metal ground of the relative opposite side of circuit main board, be arranged between the metal clip on bluetooth earphone and described antenna body away from
From less than the distance between described metal clip and described Metal ground, loop aerial structure is adopted by this Bluetooth antenna, and
In the opposite side of Bluetooth antenna, Metal ground is set, this Metal ground simultaneously as Bluetooth antenna reflecting plate so that bluetooth ear
Machine is when the head near human body uses it is ensured that Bluetooth antenna is used for the electromagnetic signal major part power of transmission towards reflecting plate
Reflection direction transmitting, thus the impact that the head reducing human body decay to antenna performance, reached stable antenna performance with
Improve the purpose of Consumer's Experience.
Brief description
In order to be illustrated more clearly that the technical scheme in this utility model embodiment, below will be to required in embodiment description
Accompanying drawing to be used be briefly described it should be apparent that, drawings in the following description are only that of the present utility model some are real
Apply example, for those of ordinary skill in the art, on the premise of not paying creative work, can also be according to these accompanying drawings
Obtain other accompanying drawings.
Fig. 1 is a kind of perspective view of bluetooth earphone that this utility model embodiment provides；
Fig. 2 is a kind of structural representation of Bluetooth antenna body that this utility model embodiment provides；
Fig. 3 is a kind of Bluetooth antenna standing wave (VSWR) figure that this utility model embodiment provides；
Fig. 4 is XY, XZ, YZ face when frequency is for 2.40GHz for a kind of Bluetooth antenna that this utility model embodiment provides
The gain diagram of upper radiation all directions；
Fig. 5 is XY, XZ, YZ face when frequency is for 2.45GHz for a kind of Bluetooth antenna that this utility model embodiment provides
The gain diagram of upper radiation all directions；
Fig. 6 is XY, XZ, YZ face when frequency is for 2.50GHz for a kind of Bluetooth antenna that this utility model embodiment provides
The gain diagram of upper radiation all directions；
1. circuit main board；2. antenna body；3. Metal ground；4. metal clip；21. first branches；22 aerial radiation portions；
23. second branches；24. feed ends；25. earth terminals.
Specific embodiment
Embodiment of the present utility model is described below in detail, the example of described embodiment is shown in the drawings, wherein ad initio
To the element that same or similar label represents same or similar element or has same or like function eventually.Below by ginseng
The embodiment examining Description of Drawings is exemplary, is only used for explaining this utility model, and it is not intended that to of the present utility model
Limit.
In description of the present utility model it is to be understood that term " " center ", " longitudinal ", " horizontal ", " on ", D score,
The orientation of instruction such as "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom ", " interior ", " outward " or position relationship are
Based on orientation shown in the drawings or position relationship, it is for only for ease of description this utility model and simplifies description, rather than instruction
Or the hint device of indication or element must have specific orientation, with specific azimuth configuration and operation, be not therefore understood that
It is to restriction of the present utility model.Additionally, term " first ", " second " be only used for describe purpose, and it is not intended that instruction or
Hint relative importance or the implicit quantity indicating indicated technical characteristic.Thus, " first ", the spy of " second " are defined
Levy and can express or implicitly include one or more this feature.In description of the present utility model, unless otherwise saying
Bright, " multiple " are meant that two or more.
In description of the present utility model, it should be noted that unless otherwise clearly defined and limited, term " peace
Dress ", " being connected ", " connection " should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected, or integratedly
Connect；Can be to be mechanically connected or electrically connect；Can be to be joined directly together it is also possible to be indirectly connected to by intermediary,
It can be the connection of two element internals.For the ordinary skill in the art, above-mentioned art can be understood with concrete condition
Concrete meaning in this utility model for the language.
Describe in detail with reference to the accompanying drawings according to a specific embodiment of the present utility model.
With reference to shown in Fig. 1, according to a kind of Bluetooth antenna of the present utility model, it is applied to bluetooth earphone, including：Circuit main board
1st, it is arranged at the antenna body 2 of circuit main board 1 side and the Metal ground 3 being arranged at the relative opposite side of circuit main board 1；
Be arranged at the distance between metal clip 4 and antenna body 2 on bluetooth earphone less than between metal clip 4 and Metal ground 3 away from
From.Specifically, metal clip 4, antenna body 2, circuit main board 1 and Metal ground 3 are sequentially set in bluetooth earphone；This circuit master
Plate 1 is printed circuit board (PCB), and this circuit main board 1 is provided with grounding parts and signal access section for being connected with antenna body 2；Blue
Tooth earphone also includes an earplug, and this Metal ground 3 is being connected conducting with circuit main board 1 at earplug.Thus, by antenna
The opposite side setting Metal ground 3 of body 2, on the one hand this Metal ground 3 can make simultaneously as the reflecting plate of antenna body 2
Obtain bluetooth earphone when the head near human body uses, Metal ground 3 can play between antenna body 2 and the head of human body
The effect of physical shielding；On the other hand, Metal ground 3 is carried out the radiant power of antenna instead as the reflecting plate of antenna body 2
Penetrate, improve the gain of antenna body 2, thus ensure that Bluetooth antenna is used for the electromagnetic signal major part power transmitting towards anti-
Penetrate plate reflection direction transmitting, reduce the impact that the head of human body is decayed to antenna performance, reached stable antenna performance,
Improve the purpose of Consumer's Experience.
According to an example of the present utility model, the area of Metal ground 3 and antenna body 2 on circuit main board 1 just
The covered plane domain size of projection is identical, and thus, antenna body 2 avoids the head due to human body in use
The absorption interference that antenna electromagnetic wave is carried out, reduces the impact that the head of human body is decayed to antenna performance.Simultaneously as antenna
It is zero that body 2 radiates in the axial direction, greatest irradiation in the horizontal direction, and Metal ground 3 makes antenna originally as reflecting plate
Body 2 radiates towards reflection direction, thus improve the gain of antenna body 2.
According to an example of the present utility model, this antenna body 2 is loop aerial, and this loop aerial is a kind of metal
The wire of material is coiled into definite shape, can be circular, square, triangle etc., using conductor two ends as the structure of outfan.
Shown in reference Fig. 2, this U-shaped structure of antenna body 2, antenna body 2 includes the first branch 21, the sky being sequentially connected
Beta radiation portion 22 and the second branch 23, the first branch 21 is provided with feed end 24, and the second branch 23 is provided with earth terminal 25, feed end 24
It is connected with circuit main board 1 respectively with earth terminal 25.Specifically, the feed end 24 of this antenna body 2 and the signal of circuit main board 1 connect
Enter portion to be connected, the earth terminal 25 of this antenna body 2 is connected with the grounding parts of circuit main board 1.Thus, feed end 24 and ground connection
End 25 forms the loop of closure, antenna body 2 receipt signal from circuit main board 1 via feed end 24, converts the signal to electricity
Magnetic wave is to radiate, and from free space, the electromagnetic wave receiving is converted into signal and is sent to circuit main board 1 and connect
Receipts are processed.
This feed end 24 is located at the junction of aerial radiation portion 22 and the first branch 21, and this earth terminal 25 is located at aerial radiation
Portion 22 and the junction of the second branch 23.Thus, by arranging the concrete on antenna body 1 of feed end 24 and earth terminal 25
Position is it is achieved that the impedance matching of Bluetooth antenna.With reference to shown in Fig. 3, this figure is Bluetooth antenna standing wave (VSWR) figure, in bluetooth work
In the range of working frequency, the standing wave of this Bluetooth antenna, close to 1.0, illustrates that this Bluetooth antenna achieves good impedance matching.
According to an example of the present utility model, the material of this antenna body 1 is copper, appointing in Nitinol, foreign copper-nickel alloy
Meaning is a kind of, the electric conductivity good to ensure antenna.
The length range of the first branch 21 is 10mm～20mm, and the length range of the second branch 23 is 10mm～20mm.My god
The length range in beta radiation portion 22 is 52mm～62mm.Feed end 24 is 8mm～12mm with the spacing range of earth terminal 25.According to
An example of the present utility model, the length of the first branch 21 is less than or equal to the length of the second branch 23.Thus, closed by design
The size of suitable antenna body 1, thus ensure that Antenna Operation in the operating frequency range of 2.4GHz～2.484GHz, energy
Enough ensure the radiance of antenna.
Metal clip 4 with antenna body 2 not at grade, and has a height between metal clip 4 and Metal ground 3
Difference.Thus, it is possible to reduce the impact of the service behaviour to antenna body 2 for the metal clip 4, thus ensureing the service behaviour of antenna.
According to an example of the present utility model, metal clip 4 and antenna body 2 can be at grade.
Knowable to the data that records of experiment, referring to shown in Fig. 4～6, be Bluetooth antenna respectively frequency be 2.40GHz,
The gain diagram of all directions of radiation on XY, XZ, YZ face on 2.45GHz and 2.50GHz different frequent points.Aerial radiation gain
Figure can reflect the radiation characteristic of antenna, is generally used to represent the power of aerial radiation electromagnetic wave or field intensity in each side of space
To distribution pattern.In the cephalad direction of human body, antenna gain is less, in the cephalad direction away from human body, antenna
Gain is larger.Thus, the impact by the head that Metal ground reduces human body, antenna performance being decayed, has reached stable antenna
The purpose of characteristic.
These are only preferred embodiment of the present utility model, not in order to limit this utility model, all in this utility model
Spirit and principle within, any modification, equivalent substitution and improvement made etc., should be included in protection model of the present utility model
Within enclosing.
Claims (10)
1. a kind of Bluetooth antenna is it is characterised in that described Bluetooth antenna includes：
Circuit main board, it is arranged at the antenna body of described circuit main board side and is arranged at relative another of described circuit main board
The Metal ground of side；
The distance between metal clip and described antenna body being arranged on bluetooth earphone is less than described metal clip and described metal
The distance between ground.
2. Bluetooth antenna as claimed in claim 1 is it is characterised in that described antenna body is loop aerial.
3. Bluetooth antenna as claimed in claim 2 is it is characterised in that the U-shaped structure of described antenna body, described antenna body
Including the first branch being sequentially connected, aerial radiation portion and the second branch, described first branch is provided with feed end, described second point
Install earth terminal, described feed end and described earth terminal are connected with described circuit main board respectively.
4. Bluetooth antenna as claimed in claim 3 it is characterised in that described feed end be located at described aerial radiation portion with described
The junction of the first branch, described earth terminal is located at the junction in described aerial radiation portion and described second branch.
5. described Bluetooth antenna as arbitrary in Claims 1-4 is it is characterised in that the material of described antenna body is copper, NiTi
Any one in alloy, foreign copper-nickel alloy.
6. Bluetooth antenna as claimed in claim 5 it is characterised in that described first branch length range be 10mm～
20mm, the length range of described second branch is 10mm～20mm.
7. Bluetooth antenna as claimed in claim 5 it is characterised in that described aerial radiation portion length range be 52mm～
62mm.
8. Bluetooth antenna as claimed in claim 5 is it is characterised in that described feed end with the spacing range of described earth terminal is
8mm～12mm.
9. Bluetooth antenna as claimed in claim 6 is it is characterised in that the length of described first branch is less than or equal to described second
The length of branch.
10. Bluetooth antenna as claimed in claim 1 is not it is characterised in that described metal clip and described antenna body be same
In plane, and there is between described metal clip and described Metal ground a difference in height.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510447069 | 2015-07-27 | ||
| CN2015104470693 | 2015-07-27 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205944397U true CN205944397U (en) | 2017-02-08 |
Family
ID=54578264
Family Applications (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520655756.XU Active CN205029002U (en) | 2015-07-27 | 2015-08-27 | Antenna and including electronic equipment of this antenna |
| CN201510535031.1A Pending CN105098326A (en) | 2015-07-27 | 2015-08-27 | Antenna and electronic equipment including antenna |
| CN201620608560.XU Active CN205944397U (en) | 2015-07-27 | 2016-06-21 | Bluetooth antenna |
Family Applications Before (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520655756.XU Active CN205029002U (en) | 2015-07-27 | 2015-08-27 | Antenna and including electronic equipment of this antenna |
| CN201510535031.1A Pending CN105098326A (en) | 2015-07-27 | 2015-08-27 | Antenna and electronic equipment including antenna |
Country Status (1)
| Country | Link |
|---|---|
| CN (3) | CN205029002U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107801117A (en) * | 2017-11-30 | 2018-03-13 | 出门问问信息科技有限公司 | Wireless headset |
| CN109327753A (en) * | 2017-07-31 | 2019-02-12 | 北京小米移动软件有限公司 | Bluetooth headset |
| CN110323542A (en) * | 2019-06-28 | 2019-10-11 | 歌尔科技有限公司 | A kind of antenna assembly and bluetooth headset |
| WO2020087676A1 (en) * | 2018-10-29 | 2020-05-07 | 歌尔股份有限公司 | Wireless double-earpiece headset |
| CN111769353A (en) * | 2020-07-08 | 2020-10-13 | 鸿基无线通信(深圳)有限公司 | Design method of Bluetooth antenna and related equipment |
| CN113079433A (en) * | 2021-04-02 | 2021-07-06 | 北京有竹居网络技术有限公司 | Earphone set |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110416744B (en) * | 2019-07-08 | 2021-08-24 | 维沃移动通信有限公司 | Antenna device, antenna control method and terminal equipment |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5321290B2 (en) * | 2009-06-30 | 2013-10-23 | 株式会社村田製作所 | Antenna structure |
| CN202004812U (en) * | 2010-12-01 | 2011-10-05 | 惠州Tcl移动通信有限公司 | Multi-antenna structure of mobile terminal |
| TWM470398U (en) * | 2013-07-19 | 2014-01-11 | Chi Mei Comm Systems Inc | Antenna device |
-
2015
- 2015-08-27 CN CN201520655756.XU patent/CN205029002U/en active Active
- 2015-08-27 CN CN201510535031.1A patent/CN105098326A/en active Pending
-
2016
- 2016-06-21 CN CN201620608560.XU patent/CN205944397U/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109327753A (en) * | 2017-07-31 | 2019-02-12 | 北京小米移动软件有限公司 | Bluetooth headset |
| CN107801117A (en) * | 2017-11-30 | 2018-03-13 | 出门问问信息科技有限公司 | Wireless headset |
| CN107801117B (en) * | 2017-11-30 | 2023-12-19 | 出门问问信息科技有限公司 | Wireless earphone |
| WO2020087676A1 (en) * | 2018-10-29 | 2020-05-07 | 歌尔股份有限公司 | Wireless double-earpiece headset |
| CN110323542A (en) * | 2019-06-28 | 2019-10-11 | 歌尔科技有限公司 | A kind of antenna assembly and bluetooth headset |
| CN111769353A (en) * | 2020-07-08 | 2020-10-13 | 鸿基无线通信(深圳)有限公司 | Design method of Bluetooth antenna and related equipment |
| CN113079433A (en) * | 2021-04-02 | 2021-07-06 | 北京有竹居网络技术有限公司 | Earphone set |
Also Published As
| Publication number | Publication date |
|---|---|
| CN205029002U (en) | 2016-02-10 |
| CN105098326A (en) | 2015-11-25 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |