CN105449358B - A kind of antenna system of bluetooth headset and a kind of bluetooth headset - Google Patents
A kind of antenna system of bluetooth headset and a kind of bluetooth headset Download PDFInfo
- Publication number
- CN105449358B CN105449358B CN201510895784.3A CN201510895784A CN105449358B CN 105449358 B CN105449358 B CN 105449358B CN 201510895784 A CN201510895784 A CN 201510895784A CN 105449358 B CN105449358 B CN 105449358B
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- CN
- China
- Prior art keywords
- control box
- outer frame
- pcb board
- metal outer
- bluetooth headset
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/44—Details of, or arrangements associated with, antennas using equipment having another main function to serve additionally as an antenna, e.g. means for giving an antenna an aesthetic aspect
- H01Q1/46—Electric supply lines or communication lines
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
- H01Q1/38—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith formed by a conductive layer on an insulating support
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q13/00—Waveguide horns or mouths; Slot antennas; Leaky-waveguide antennas; Equivalent structures causing radiation along the transmission path of a guided wave
- H01Q13/10—Resonant slot antennas
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- Transceivers (AREA)
- Details Of Aerials (AREA)
Abstract
The invention discloses a kind of antenna systems of bluetooth headset and a kind of bluetooth headset.In the antenna system, bluetooth headset includes the conducting wire for controlling box, connection control box and loudspeaker, and the pcb board setting comprising Bluetooth chip is controlling in box, the metal outer frame that control box has surrounding periphery to be arranged；Conducting wire is shielded cable, and the antenna system of bluetooth headset includes pcb board, controls the metal outer frame of box and the shielded layer of shielded cable.The a part of technical solution of the present invention by the shielded layer of pcb board, metal outer frame and shielded cable as antenna system, increases the volume of antenna, while the also equivalent ground for expanding whole system, more superior than traditional antenna performance under identical environment；It solves the problems, such as that metal outer frame hinders aerial signal transmission, and does not increase earphone volume, keep the design of bluetooth headset more flexible.
Description
Technical field
The present invention relates to bluetooth headset technical field, in particular to the antenna system of a kind of bluetooth headset and a kind of bluetooth ear
Machine.
Background technique
With popularizing for bluetooth headset, user is higher and higher to the performance requirement of antenna of Bluetooth headset.Simultaneously as market
Keen competition, bluetooth headset are produced house and reduce the size of earphone one after another and improved the portable of bluetooth headset using more metals
Property and aesthetic feeling, are attracted clients with this.Since available space reduces the inhibition with metal outer frame to electromagnetic wave, antenna
Design becomes to be increasingly difficult to.
General bluetooth headset, PCB, battery and key containing Bluetooth chip and other control circuits etc. are mounted on one
In the plastics control box of a very little, loudspeaker is wired to plastics control box.Traditional Antenna Design uses
Monopole IFA (monopole inverse-F antenna) and Loop (ring-type) antenna, since the size of pcb board is small, antenna performance is difficult to mention
Height, meanwhile, as the frame of plastics control box is arranged to metal, the design difficulty of antenna can be bigger.
The antenna of portable blue-tooth equipment should be omni-directional, and the Bluetooth antenna of excellent in design will help to realize this
A target.Since Bluetooth band operation wavelength is shorter, energy caused by the barrier or conductor in transmission path is damaged
It consumes relatively high, therefore has been considered as wall, the presence of the electromagnetic waves barrier such as metal shell even human body, so Bluetooth antenna
Gain can not be too small.In addition from the point of view of products application angle, antenna is very sensitive for grounding metal plane around, on circuit board
Ground plane the shielding sheet metal of antistatic can all seriously affect antenna radiation characteristics either on circuit board.Therefore, if
Ensure that the good working characteristics of Bluetooth antenna to further increase the transmission quality of blue tooth products, just has in Bluetooth antenna
Above-mentioned factor is considered in design.
Summary of the invention
In view of the prior art since bluetooth headset is small in size, and cause to hinder asking for aerial signal transmission using metal outer frame
Topic, propose a kind of bluetooth headset of the invention antenna system and a kind of bluetooth headset, to overcome the above problem or extremely
Partially solve the above problems.
According to one aspect of the present invention, a kind of antenna system of bluetooth headset is provided, the bluetooth headset includes control
The conducting wire of box processed, connection control box and loudspeaker, the pcb board comprising Bluetooth chip are arranged in the control box, and feature exists
In the control box has metal outer frame, and the conducting wire is shielded cable, and the antenna system of the bluetooth headset includes the PCB
The shielded layer of plate, the metal outer frame of the control box and the shielded cable；Wherein,
The RF output end of Bluetooth chip on the pcb board is electrically connected in the metal outer frame of the control box；
Gap between the pcb board and the metal outer frame constitutes radiating slot；
The ground of the pcb board is electrically connected the metal outer frame of the control box and the shielded layer of the shielded cable.
Optionally, the tie point on the ground of the metal outer frame and pcb board of the control box is one or more.
Optionally, the position of the tie point on the ground of the metal outer frame and pcb board of the control box, according to the day of setting
The debugging of line resonance frequency determines.
Optionally, the one or both ends of the control box are arranged in the shielded cable.
According to another aspect of the invention, a kind of bluetooth headset, including control box, connection control box and loudspeaking are proposed
The conducting wire of device, the pcb board comprising Bluetooth chip are arranged in the control box, which is characterized in that the control box has outside metal
Frame, the conducting wire are shielded cable, and the antenna system of the bluetooth headset includes outside the metal of the pcb board, the control box
The shielded layer of frame and the shielded cable；Wherein,
The RF output end of Bluetooth chip on the pcb board is electrically connected in the metal outer frame of the control box；
Gap between the pcb board and the metal outer frame constitutes radiating slot；
The ground of the pcb board is electrically connected the metal outer frame of the control box and the shielded layer of the shielded cable.
Optionally, the tie point on the ground of the metal outer frame and pcb board of the control box is one or more.
Optionally, the position of the tie point on the ground of the metal outer frame and pcb board of the control box, according to the day of setting
The debugging of line resonance frequency determines.
Optionally, the one or both ends of the control box are arranged in the shielded cable.
In conclusion technical solution of the present invention is designed with the control of metal outer frame by the control box by plastics
Box, by not increasing earphone using the shielded layer of pcb board, metal outer frame and shielded cable as a part of antenna system
The volume that antenna is considerably increased in the case where volume keeps the design of bluetooth headset more flexible；And utilize metal outer frame
The shielding properties of antenna is improved with the shielded layer of shielded cable, it is more superior than traditional antenna performance under identical environment, it solves
Metal outer frame hinders the problem of aerial signal transmission.
Detailed description of the invention
Fig. 1 is a kind of antenna system schematic illustration of bluetooth headset provided by one embodiment of the present invention；
Fig. 2 is a kind of structural schematic diagram of bluetooth headset provided by one embodiment of the present invention.
Specific embodiment
To make the object, technical solutions and advantages of the present invention clearer, below in conjunction with attached drawing to embodiment party of the present invention
Formula is described in further detail.
Fig. 1 is a kind of antenna system configuration schematic diagram of bluetooth headset provided by one embodiment of the present invention.Such as Fig. 1 institute
Show, which includes the conducting wire for controlling box, connection control box and loudspeaker, and it includes bluetooth that the conducting wire, which is shielded cable,
The setting of pcb board 100 of chip is in control box, the metal outer frame 101 that control box has surrounding periphery to be arranged, this antenna system includes
The screen of PCB (Printed circuit board) plate 100, the metal outer frame 101 for controlling box and connection control box and loudspeaker
Cover the shielded layer 102 of cable.Metal outer frame 101 is equipped with feeding point 103, for defeated with the radio frequency of the Bluetooth chip on pcb board
Outlet electrical connection, metal outer frame 101 are equipped with grounding point 104, for being connected with the ground of pcb board 100, the shielded layer of shielded cable
102 are also connected with the ground of pcb board 100.
Wherein, the grounding point of the present embodiment metal outer frame 101 is grounding point 104 in Fig. 1, can be one or more, Fig. 1
Shown in be 2.
It usually to be kept in traditional antenna design at a distance from metal outer frame or stretch out metal outer frame, to avoid outside metal
Frame acts on shielding electromagnetic waves.The present invention is using the shielded layer of pcb board, metal outer frame and shielded cable as antenna system
A part, and the gap between pcb board and metal outer frame constitutes radiating slot, eliminates bluetooth headset and is caused using metal outer frame
Signal hinder problem, and considerably increase the volume of antenna, under identical environment much than traditional antenna superior performance, benefit
Antenna performance is improved with the shielded layer of the intrinsic metal outer frame of earphone and shielded cable, does not increase earphone volume and eliminates metal
Frame shielding problem keeps the design of bluetooth headset more flexible.
In one embodiment of the invention, the tie point for controlling the metal outer frame of box and the ground of pcb board is one or more
It is a, and the position for controlling the tie point on the metal outer frame of box and the ground of pcb board is debugged according to the antenna resonant frequency of setting and is determined.
The resonance frequency of antenna is the most basic requirement to antenna, and any antenna all resonance will connect in certain frequency
Receive the signal of which frequency, it would be desirable to antenna resonance in which frequency, reach resonance be in order to preferably with feeding network
Match.By changing the position of the tie point of the metal outer frame of control box and the ground of pcb board, adjustable antenna resonant frequency comes
It is applicable in the bluetooth headset of different structure designs.
In the above-described embodiments, the one or both ends of control box are arranged in shielded cable, when bluetooth headset only has one
When loudspeaker, shielded cable is one, and one end of control box is arranged in；When bluetooth headset has 2 loudspeakers, shielded cable is
2, the both ends of control box are set.
A kind of bluetooth headset is provided in one embodiment of the invention, as shown in Fig. 2, the earphone includes control box
200, the conducting wire of connection control box 200 and loudspeaker (not shown), the conducting wire are shielded cable 201, include Bluetooth chip
Pcb board setting is in control box, the metal outer frame 202 that control box 200 has surrounding periphery to be arranged, the antenna system packet of bluetooth headset
It includes pcb board, control the metal outer frame of box and the shielded layer of shielded cable；Wherein, the radio frequency output of the Bluetooth chip on pcb board
End is electrically connected in the metal outer frame of control box；Gap between pcb board and metal outer frame constitutes radiating slot；The ground of pcb board
It is electrically connected the metal outer frame of control box and the shielded layer of shielded cable.
In one embodiment of the invention, the connection on the ground of the metal outer frame and pcb board of the control box of the bluetooth headset
Point is one or more, and the position of the tie point on the ground of the metal outer frame and pcb board of the control box of the bluetooth headset is according to setting
Fixed antenna resonant frequency, which is debugged, to be determined.
In the above-described embodiments, the one or both ends of control box are arranged in the shielded cable of the bluetooth headset.
In conclusion the present invention is using the shielded layer of the pcb board of bluetooth headset, metal outer frame and shielded cable as antenna
A part of system eliminates bluetooth headset using signal shielding problem caused by metal outer frame, considerably increases the body of antenna
Product, the shielded layer of shielded cable are connected with the ground of pcb board, influence not increasing the ground plane on circuit board on antenna radiation characteristics
In the case where expand the ground connection of system, under identical environment much than traditional antenna superior performance；Utilize bluetooth headset control
The metal outer frame of box processed and the shielded layer of shielded cable improve antenna performance, do not increase earphone volume and eliminate metal frame shielding
Problem keeps the design of bluetooth headset more flexible；The grounding point position of metal outer frame is adjusted according to the resonance frequency of setting,
The present invention is set to be suitable for the bluetooth headset of different shape structure.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the scope of the present invention.It is all
Any modification, equivalent replacement, improvement and so within the spirit and principles in the present invention, are all contained in protection scope of the present invention
It is interior.
Claims (8)
1. a kind of antenna system of bluetooth headset, the bluetooth headset includes the conducting wire for controlling box, connection control box and loudspeaker,
Pcb board comprising Bluetooth chip is arranged in the control box, which is characterized in that the gold that the control box has surrounding periphery to be arranged
Belong to outline border, the conducting wire is shielded cable, and the antenna system of the bluetooth headset includes the gold of the pcb board, the control box
Belong to the shielded layer of outline border and the shielded cable；Wherein,
The RF output end of Bluetooth chip on the pcb board is electrically connected in the metal outer frame of the control box；
Gap between the pcb board and the metal outer frame constitutes radiating slot；
The ground of the pcb board is electrically connected the metal outer frame of the control box and the shielded layer of the shielded cable, expands day
The ground connection of linear system system.
2. the antenna system of bluetooth headset as described in claim 1, which is characterized in that the metal outer frame of the control box and institute
The tie point on the ground of pcb board is stated as one or more.
3. the antenna system of bluetooth headset as claimed in claim 2, which is characterized in that the metal outer frame of the control box and institute
The position for stating the tie point on the ground of pcb board is debugged according to the antenna resonant frequency of setting and is determined.
4. the antenna system of bluetooth headset as described in any one of claims 1-3, which is characterized in that the shielded cable setting
In the one or both ends of the control box.
5. a kind of bluetooth headset, the conducting wire including control box, connection control box and loudspeaker, the pcb board comprising Bluetooth chip are set
It sets in the control box, which is characterized in that the metal outer frame that the control box has surrounding periphery to be arranged, the conducting wire are shielding
Cable, the antenna system of the bluetooth headset include the pcb board, the metal outer frame of the control box and the shielded cable
Shielded layer；Wherein,
The RF output end of Bluetooth chip on the pcb board is electrically connected in the metal outer frame of the control box；
Gap between the pcb board and the metal outer frame constitutes radiating slot；
The ground of the pcb board is electrically connected the metal outer frame of the control box and the shielded layer of the shielded cable, expands day
The ground connection of linear system system.
6. bluetooth headset as claimed in claim 5, which is characterized in that the metal outer frame of the control box and the pcb board
The tie point on ground is one or more.
7. bluetooth headset as claimed in claim 6, which is characterized in that the metal outer frame of the control box and the pcb board
The position of the tie point on ground is debugged according to the antenna resonant frequency of setting and is determined.
8. such as the described in any item bluetooth headsets of claim 5-7, which is characterized in that the shielded cable is arranged in the control
The one or both ends of box.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510895784.3A CN105449358B (en) | 2015-11-27 | 2015-11-27 | A kind of antenna system of bluetooth headset and a kind of bluetooth headset |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510895784.3A CN105449358B (en) | 2015-11-27 | 2015-11-27 | A kind of antenna system of bluetooth headset and a kind of bluetooth headset |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105449358A CN105449358A (en) | 2016-03-30 |
| CN105449358B true CN105449358B (en) | 2019-04-02 |
Family
ID=55559305
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510895784.3A Active CN105449358B (en) | 2015-11-27 | 2015-11-27 | A kind of antenna system of bluetooth headset and a kind of bluetooth headset |
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| CN (1) | CN105449358B (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018205356A1 (en) * | 2017-05-10 | 2018-11-15 | 深圳市冠旭电子股份有限公司 | Bluetooth earphone |
| CN109327753A (en) * | 2017-07-31 | 2019-02-12 | 北京小米移动软件有限公司 | Bluetooth headset |
| CN208821022U (en) * | 2018-10-29 | 2019-05-03 | 歌尔科技有限公司 | Ears wireless headset |
| CN110444964A (en) * | 2019-09-02 | 2019-11-12 | 浙江超级电气科技有限公司 | A kind of wireless control integrated electric motor cable plug |
| CN112886219B (en) | 2019-11-30 | 2022-05-10 | 华为技术有限公司 | Wireless earphone |
| CN111383795B (en) * | 2020-03-09 | 2021-11-19 | 西安联飞智能装备研究院有限责任公司 | Unmanned aerial vehicle shielding cable grounding point determining method and device, cable and unmanned aerial vehicle |
| CN112510351B (en) * | 2020-09-30 | 2023-03-31 | 安克创新科技股份有限公司 | Antenna device for wireless earphone and wireless earphone |
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| CN104183914B (en) * | 2013-05-21 | 2017-05-10 | 宝德科技股份有限公司 | Wireless headphone and antenna for wireless headphone |
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| CN104733831A (en) * | 2015-04-14 | 2015-06-24 | 上海安费诺永亿通讯电子有限公司 | WLAN (wireless local area network) antenna and manufacturing method thereof applied to mobile terminal |
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| CN200944432Y (en) * | 2006-05-12 | 2007-09-05 | 汉达精密电子(昆山)有限公司 | Plane printed circuit board antenna |
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| Publication number | Publication date |
|---|---|
| CN105449358A (en) | 2016-03-30 |
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Address after: 261031 Dongfang Road, Weifang high tech Industrial Development Zone, Shandong, China, No. 268 Applicant after: Goertek Inc. Address before: 261031 Dongfang Road, Weifang high tech Industrial Development Zone, Shandong, China, No. 268 Applicant before: Goertek Inc. |
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