CN105449358A - Antenna system for bluetooth headset and bluetooth headset - Google Patents
Antenna system for bluetooth headset and bluetooth headset Download PDFInfo
- Publication number
- CN105449358A CN105449358A CN201510895784.3A CN201510895784A CN105449358A CN 105449358 A CN105449358 A CN 105449358A CN 201510895784 A CN201510895784 A CN 201510895784A CN 105449358 A CN105449358 A CN 105449358A
- Authority
- CN
- China
- Prior art keywords
- control box
- outer frame
- metal outer
- pcb board
- antenna
- Prior art date
- 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.)
- Granted
Links
Classifications
-
- 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
Abstract
The invention discloses an antenna system for a bluetooth headset and the bluetooth headset. In the antenna system, the bluetooth headset comprises a control box and a wire, wherein the wire is connected with the control box and a loudspeaker; a PCB comprising a bluetooth chip is arranged in the control box; the control box is provided with a metal frame which is arranged in a manner of surrounding the periphery; the wire is a shielding cable; and the antenna system of the bluetooth headset comprises the PCB, the metal frame of the control box and a shielding layer of the shielding cable. According to the technical scheme disclosed by the invention, the PCB, the metal frame and the shielding layer of the shielding cable are taken as one part of the antenna system, so that the size of an antenna is increased; meanwhile, grounding of the overall system is also equivalently expanded; the antenna is more excellent in performance than a traditional antenna in the same environment; the problem that signal transmission of the antenna is hindered by the metal frame is solved; the size of the headset is not increased; and the appearance design of the bluetooth headset is relatively flexible.
Description
Technical field
The present invention relates to bluetooth earphone technical field, particularly a kind of antenna system of bluetooth earphone and a kind of bluetooth earphone.
Background technology
Along with popularizing of bluetooth earphone, the performance requirement of user to antenna of Bluetooth headset is more and more higher.Meanwhile, due to market keen competition, bluetooth earphone produces house and reduces the size of earphone one after another and use more metal to improve portability and the aesthetic feeling of bluetooth earphone, attracts clients with this.Because the reduction of available space and metal outer frame are to electromagnetic inhibition, the design of antenna becomes more and more difficult.
General bluetooth earphone, the PCB containing Bluetooth chip and other control circuits, battery and button etc. are all arranged in a very little plastics control box, and loud speaker is wired to plastics control box.Traditional Antenna Design adopts monopoleIFA (one pole inverse-F antenna) and Loop (ring-type) antenna, because the size of pcb board is little, antenna performance is difficult to improve, simultaneously, as the framework of plastics control box being arranged to metal, the design difficulty of antenna can be larger.
The antenna of portable blue-tooth equipment should be isotropic, and the Bluetooth antenna of excellent in design will contribute to realizing this target.Because Bluetooth band operation wavelength is shorter, the energy loss caused for the barrier in transmission path or conductor is relatively high, therefore should consider there is wall, the metal shell even existence of the electromagnetic wave barrier such as human body, so the gain of Bluetooth antenna can not be too little.In addition from products application angle, antenna is for around grounding metal plane is very responsive, and on the ground plane on circuit board or circuit board, the shielded metal sheet of antistatic all can badly influence antenna radiation characteristics.Therefore, to guarantee that operating characteristic that Bluetooth antenna is good is to improve the transmission quality of blue tooth products further, just above-mentioned factor must be considered in Bluetooth antenna design.
Summary of the invention
In view of prior art because bluetooth earphone volume is little, and adopt metal outer frame to cause hindering the problem of aerial signal transmission, propose the antenna system of a kind of bluetooth earphone of the present invention and a kind of bluetooth earphone, to overcome the problems referred to above or to solve the problem at least in part.
According to one aspect of the present invention, provide a kind of antenna system of bluetooth earphone, described bluetooth earphone comprises the wire of control box, connection control box and loud speaker, the pcb board comprising Bluetooth chip is arranged in described control box, it is characterized in that, described control box has metal outer frame, and described wire is shielded type cable, and the antenna system of described bluetooth earphone comprises described pcb board, the metal outer frame of described control box and the screen of described shielded type cable; Wherein,
The radio-frequency (RF) output end of the Bluetooth chip on described pcb board is electrically connected in the metal outer frame of described control box;
Gap between described pcb board and described metal outer frame forms radiating slot;
The ground of described pcb board is electrically connected the metal outer frame of described control box and the screen of described shielded type cable respectively.
Alternatively, the tie point on the metal outer frame of described control box and the ground of described pcb board is one or more.
Alternatively, the position of the tie point on the metal outer frame of described control box and the ground of described pcb board, the antenna resonant frequency debugging according to setting is determined.
Alternatively, described shielded type cable is arranged on one end or the two ends of described control box.
According to another aspect of the present invention, propose a kind of bluetooth earphone, comprise the wire of control box, connection control box and loud speaker, the pcb board comprising Bluetooth chip is arranged in described control box, it is characterized in that, described control box has metal outer frame, and described wire is shielded type cable, and the antenna system of described bluetooth earphone comprises described pcb board, the metal outer frame of described control box and the screen of described shielded type cable; Wherein,
The radio-frequency (RF) output end of the Bluetooth chip on described pcb board is electrically connected in the metal outer frame of described control box;
Gap between described pcb board and described metal outer frame forms radiating slot;
The ground of described pcb board is electrically connected the metal outer frame of described control box and the screen of described shielded type cable respectively.
Alternatively, the tie point on the metal outer frame of described control box and the ground of described pcb board is one or more.
Alternatively, the position of the tie point on the metal outer frame of described control box and the ground of described pcb board, the antenna resonant frequency debugging according to setting is determined.
Alternatively, described shielded type cable is arranged on one end or the two ends of described control box.
In sum, technical scheme of the present invention is by being designed to the control box with metal outer frame by the control box of plastics, by using the part of the screen of pcb board, metal outer frame and shielded type cable as antenna system, considerably increasing the volume of antenna when not increasing earphone volume, making the appearance design of bluetooth earphone more flexible; And utilize the screen of metal outer frame and shielded type cable to improve the shielding properties of antenna, and more superior than traditional antenna performance under equivalent environment, solve the problem that metal outer frame hinders aerial signal transmission.
Accompanying drawing explanation
The antenna system principle schematic of a kind of bluetooth earphone that Fig. 1 provides for one embodiment of the invention;
The structural representation of a kind of bluetooth earphone that Fig. 2 provides for one embodiment of the invention.
Embodiment
For making the object, technical solutions and advantages of the present invention clearly, below in conjunction with accompanying drawing, embodiment of the present invention is described further in detail.
The antenna system configuration schematic diagram of a kind of bluetooth earphone that Fig. 1 provides for one embodiment of the invention.As shown in Figure 1, this bluetooth earphone comprises the wire of control box, connection control box and loud speaker, described wire is shielded type cable, the pcb board 100 comprising Bluetooth chip is arranged in control box, the metal outer frame 101 that control box has surrounding periphery to arrange, this antenna system comprises the screen 102 of PCB (Printedcircuitboard) plate 100, the metal outer frame 101 of control box and the shielded type cable of connection control box and loud speaker.Metal outer frame 101 is provided with distributing point 103, for being electrically connected with the radio-frequency (RF) output end of the Bluetooth chip on pcb board, metal outer frame 101 is provided with earth point 104, and for being connected with the ground of pcb board 100, the screen 102 of shielded type cable is also connected with the ground of pcb board 100.
Wherein, the earth point of the present embodiment metal outer frame 101 is earth point 104 in Fig. 1, can be one or more, and shown in Fig. 1 is 2.
Usually to keep with the distance of metal outer frame in traditional antenna design or stretch out metal outer frame, avoiding metal outer frame to shielding electromagnetic waves effect.The present invention is using the part of the screen of pcb board, metal outer frame and shielded type cable as antenna system, and the gap between pcb board and metal outer frame forms radiating slot, eliminate the signal obstruction problem that bluetooth earphone uses metal outer frame to cause, and considerably increase the volume of antenna, under identical environment than traditional antenna superior performance many, the screen of the metal outer frame utilizing earphone intrinsic and shielded type cable improves antenna performance, do not increase earphone volume and eliminate metal frame shielding problem, making the appearance design of bluetooth earphone more flexible.
In one embodiment of the invention, the tie point on the metal outer frame of control box and the ground of pcb board is one or more, and the position of the tie point on the ground of the metal outer frame of control box and pcb board is debugged according to the antenna resonant frequency set and determined.
The resonance frequency of antenna is the most basic demand to antenna, and any antenna all resonance, in certain frequency, receive the signal of which frequency, just wishes antenna resonance is in which frequency, and reaching resonance is to mate with feeding network better.By changing the position of the tie point of the metal outer frame of control box and the ground of pcb board, can antenna resonant frequency be regulated, be suitable for the bluetooth earphone of different structure designs.
In the above-described embodiments, shielded type cable is arranged on one end or the two ends of control box, and when bluetooth earphone only has a loud speaker, shielded type cable is one, is arranged on one end of control box; When bluetooth earphone has 2 loud speakers, shielded type cable is 2, is arranged on the two ends of control box.
Provide a kind of bluetooth earphone in one embodiment of the invention, as shown in Figure 2, this earphone comprises the wire of control box 200, connection control box 200 and loud speaker (not shown), described wire is shielded type cable 201, the pcb board comprising Bluetooth chip is arranged in control box, the metal outer frame 202 that control box 200 has surrounding periphery to arrange, the antenna system of bluetooth earphone comprises pcb board, the metal outer frame of control box and the screen of shielded type cable; Wherein, the radio-frequency (RF) output end of the Bluetooth chip on pcb board is electrically connected in the metal outer frame of control box; Gap between pcb board and metal outer frame forms radiating slot; The ground of pcb board is electrically connected the metal outer frame of control box and the screen of shielded type cable respectively.
In one embodiment of the invention, the tie point on the metal outer frame of the control box of this bluetooth earphone and the ground of pcb board is one or more, and the position of the tie point on the metal outer frame of the control box of this bluetooth earphone and the ground of pcb board is debugged according to the antenna resonant frequency set and determined.
In the above-described embodiments, the shielded type cable of this bluetooth earphone is arranged on one end or the two ends of control box.
In sum, the present invention is using the part of the screen of the pcb board of bluetooth earphone, metal outer frame and shielded type cable as antenna system, eliminate the signal shielding problem that bluetooth earphone uses metal outer frame to cause, considerably increase the volume of antenna, the screen of shielded type cable is connected with the ground of pcb board, expand the ground connection of system when not increasing the ground plane on circuit board and affecting antenna radiation characteristics, under identical environment than traditional antenna superior performance many; Utilize the metal outer frame of bluetooth earphone control box and the screen of shielded type cable to improve antenna performance, do not increase earphone volume and eliminate metal frame shielding problem, making the appearance design of bluetooth earphone more flexible; Regulate the earth point position of metal outer frame according to the resonance frequency of setting, make the present invention be applicable to the bluetooth earphone of difformity structure.
The foregoing is only preferred embodiment of the present invention, be not intended to limit protection scope of the present invention.All any amendments done within the spirit and principles in the present invention, equivalent replacement, improvement etc., be all included in protection scope of the present invention.
Claims (8)
1. the antenna system of a bluetooth earphone, described bluetooth earphone comprises the wire of control box, connection control box and loud speaker, the pcb board comprising Bluetooth chip is arranged in described control box, it is characterized in that, the metal outer frame that described control box has surrounding periphery to arrange, described wire is shielded type cable, and the antenna system of described bluetooth earphone comprises described pcb board, the metal outer frame of described control box and the screen of described shielded type cable; Wherein,
The radio-frequency (RF) output end of the Bluetooth chip on described pcb board is electrically connected in the metal outer frame of described control box;
Gap between described pcb board and described metal outer frame forms radiating slot;
The ground of described pcb board is electrically connected the metal outer frame of described control box and the screen of described shielded type cable respectively.
2. the antenna system of bluetooth earphone as claimed in claim 1, it is characterized in that, the tie point on the metal outer frame of described control box and the ground of described pcb board is one or more.
3. the antenna system of bluetooth earphone as claimed in claim 2, is characterized in that, the position of the tie point on the metal outer frame of described control box and the ground of described pcb board, and the antenna resonant frequency debugging according to setting is determined.
4. the antenna system of the bluetooth earphone as described in any one of claim 1-3, is characterized in that, described shielded type cable is arranged on one end or the two ends of described control box.
5. a bluetooth earphone, comprise the wire of control box, connection control box and loud speaker, the pcb board comprising Bluetooth chip is arranged in described control box, it is characterized in that, the metal outer frame that described control box has surrounding periphery to arrange, described wire is shielded type cable, and the antenna system of described bluetooth earphone comprises described pcb board, the metal outer frame of described control box and the screen of described shielded type cable; Wherein,
The radio-frequency (RF) output end of the Bluetooth chip on described pcb board is electrically connected in the metal outer frame of described control box;
Gap between described pcb board and described metal outer frame forms radiating slot;
The ground of described pcb board is electrically connected the metal outer frame of described control box and the screen of described shielded type cable respectively.
6. bluetooth earphone as claimed in claim 5, it is characterized in that, the tie point on the metal outer frame of described control box and the ground of described pcb board is one or more.
7. bluetooth earphone as claimed in claim 6, is characterized in that, the position of the tie point on the metal outer frame of described control box and the ground of described pcb board, and the antenna resonant frequency debugging according to setting is determined.
8. the bluetooth earphone as described in any one of claim 5-7, is characterized in that, described shielded type cable is arranged on one end or the two ends of described control 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 true CN105449358A (en) | 2016-03-30 |
| CN105449358B 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 |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105449358B (en) |
Cited By (6)
| 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 |
| 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 |
| WO2020087676A1 (en) * | 2018-10-29 | 2020-05-07 | 歌尔股份有限公司 | Wireless double-earpiece headset |
| CN111383795A (en) * | 2020-03-09 | 2020-07-07 | 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 |
| CN112510351A (en) * | 2020-09-30 | 2021-03-16 | 安克创新科技股份有限公司 | Antenna device for wireless earphone and wireless earphone |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN202817184U (en) * | 2012-08-15 | 2013-03-20 | 上海德门电子科技有限公司 | Earphone antenna with earphone audio signal communication |
| CN104183914A (en) * | 2013-05-21 | 2014-12-03 | 宝德科技股份有限公司 | Wireless headphone and antenna for wireless headphone |
| CN104466392A (en) * | 2013-09-18 | 2015-03-25 | 联想(北京)有限公司 | Antenna device, electronic equipment and method for setting antenna device |
| US20150084817A1 (en) * | 2013-09-20 | 2015-03-26 | Sony Corporation | Apparatus for tuning multi-band frame antenna |
| 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 |
| CN205282650U (en) * | 2015-11-27 | 2016-06-01 | 歌尔声学股份有限公司 | Bluetooth headset's antenna system and bluetooth headset |
-
2015
- 2015-11-27 CN CN201510895784.3A patent/CN105449358B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN202817184U (en) * | 2012-08-15 | 2013-03-20 | 上海德门电子科技有限公司 | Earphone antenna with earphone audio signal communication |
| CN104183914A (en) * | 2013-05-21 | 2014-12-03 | 宝德科技股份有限公司 | Wireless headphone and antenna for wireless headphone |
| CN104466392A (en) * | 2013-09-18 | 2015-03-25 | 联想(北京)有限公司 | Antenna device, electronic equipment and method for setting antenna device |
| US20150084817A1 (en) * | 2013-09-20 | 2015-03-26 | Sony Corporation | Apparatus for tuning multi-band frame antenna |
| 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 |
| CN205282650U (en) * | 2015-11-27 | 2016-06-01 | 歌尔声学股份有限公司 | Bluetooth headset's antenna system and bluetooth headset |
Cited By (8)
| 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 |
| WO2020087676A1 (en) * | 2018-10-29 | 2020-05-07 | 歌尔股份有限公司 | Wireless double-earpiece 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 |
| CN111383795A (en) * | 2020-03-09 | 2020-07-07 | 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 |
| 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 |
| CN112510351A (en) * | 2020-09-30 | 2021-03-16 | 安克创新科技股份有限公司 | Antenna device for wireless earphone and wireless earphone |
| 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105449358B (en) | 2019-04-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105449358A (en) | Antenna system for bluetooth headset and bluetooth headset | |
| EP3229316B1 (en) | Antenna for terminal | |
| KR101767266B1 (en) | Direct feeding apparatus for impedance matching of wireless power transmission device and transmitter/receiver for the same | |
| US10126780B2 (en) | Slot antenna for a wearable device | |
| TWI573323B (en) | Antenna assemblies with tapered loop antenna elements | |
| CN203589193U (en) | Wideband multitape coupled antenna structure based on mobile phone metal frame | |
| EP2518830A1 (en) | Wireless device | |
| CN104022350A (en) | Intelligent machine antenna with metal frame | |
| WO2017036050A1 (en) | Antenna apparatus of mobile terminal, and mobile terminal | |
| CN205282650U (en) | Bluetooth headset's antenna system and bluetooth headset | |
| US10116040B2 (en) | Multi-frequency antenna and terminal | |
| WO2021244282A1 (en) | Electronic device | |
| WO2020034689A1 (en) | Antenna system and mobile terminal | |
| TWI446626B (en) | Wideband antenna for mobile communication | |
| TWI523311B (en) | Handheld electronic device | |
| CN107331953B (en) | A kind of wireless headset using short-tail helical antenna and short circuit L shape radiator | |
| CN103700934B (en) | Antenna structure for metal case terminal and terminal | |
| TW201501411A (en) | Wireless communication device | |
| CN209344302U (en) | A kind of antenna assembly and mobile terminal | |
| WO2019033311A1 (en) | Terminal device | |
| Yatman et al. | In-the-ear hearing-instrument antenna for ISM-band body-centric ear-to-ear communications | |
| CN105161845A (en) | Ground potential metal shell radiation antenna | |
| Elouadih et al. | Design and simulation of a PIFA antenna for the use in 4G mobile telecommunications networks | |
| CN203225350U (en) | Mobile terminal | |
| TWI599097B (en) | Electronic device having antenna structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information |
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. |
|
| COR | Change of bibliographic data | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |