CN209282402U - A kind of bluetooth headset pcb board load antenna - Google Patents
A kind of bluetooth headset pcb board load antenna Download PDFInfo
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- CN209282402U CN209282402U CN201920322480.1U CN201920322480U CN209282402U CN 209282402 U CN209282402 U CN 209282402U CN 201920322480 U CN201920322480 U CN 201920322480U CN 209282402 U CN209282402 U CN 209282402U
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- antenna
- bluetooth headset
- antenna conductor
- pcb board
- pcb substrate
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Abstract
The utility model discloses a kind of bluetooth headset pcb board load antenna, it includes the PCB substrate realized by multilayer dielectric material and antenna conductor, has the via hole for penetrating through and metallizing in the PCB substrate, in via hole hole wall formation conductive layer；The antenna conductor etching passes through conductive layer and is electrically connected in the upper antenna conductor of PCB substrate top layer copper foil with the lower antenna conductor in PCB substrate bottom copper foil, the upper antenna conductor and lower antenna conductor is etched；The purpose of the utility model is to provide a kind of bluetooth headset pcb boards to carry antenna, Optimal Structure Designing is carried out to existing PCB substrate and antenna conductor, to improve the radiation direction and radiation efficiency of antenna.
Description
Technical field
The utility model antenna technical field is specifically related to a kind of bluetooth headset pcb board load antenna.
Background technique
Antenna is the important component that various smart machines require, for bluetooth headset, by voice and music data
It is beautiful and flexibly so that usage mode is more portable using radioing to bluetooth headset, in the application neck of bluetooth headset
Domain is to be transmitted audio data in the way of wireless transmission/reception by Bluetooth antenna, according to Theory of Electromagnetic Field and reality
The application experience on border, in the design phase of bluetooth headset product, when the length of antenna being selected to be equal to 1/4 wavelength, the radiation of antenna
Intensity and radiation efficiency are in optimum state, can effectively realize the reliability of bluetooth headset product, stability, but minimum
It is that length required for cannot achieve Bluetooth antenna is equally confined to bluetooth ear in the structure size of PCB and single copper foil layer
The factor of machine product structure, the anode of the charge power supply of bluetooth headset battery, the anode of negative terminal pad and charge power supply, cathode
Cabling on PCB is necessarily present in pcb board and carries near antenna conductor；And near PCB antenna onboard antenna, arbitrarily have
There is the article of conductor characteristics by the radiation efficiency of the serious radiation directivity for influencing antenna and antenna, so as to cause bluetooth ear
The reliability of machine production yield in process of production and bluetooth headset product, stability.
In this regard, need to design a kind of microminiature, efficient bluetooth headset pcb board carries antenna, to solve in the prior art
Deficiency.
Utility model content
The purpose of this utility model is in view of the above problems, a kind of bluetooth headset pcb board load antenna is provided, to existing
PCB substrate and antenna conductor carry out Optimal Structure Designing, to improve the radiation direction and radiation efficiency of antenna.
In order to achieve the above object, the technical solution adopted in the utility model is, it includes:
The PCB substrate realized by multilayer dielectric material has the via hole for penetrating through and metallizing in the PCB substrate, with
The via hole hole wall forms conductive layer；
Antenna conductor, the antenna conductor etch upper antenna conductor and etching in PCB substrate top layer copper foil in PCB substrate
The lower antenna conductor of bottom copper foil, the upper antenna conductor and lower antenna conductor are electrically connected by conductive layer.
Further, pad is provided in the multilayer dielectric material of the PCB substrate.
Further, the pad be positive terminal pad and negative terminal pad, wherein between positive terminal pad and negative terminal pad between
Away from V1=1.2~1.3mm.
Further, the upper antenna conductor and lower antenna conductor pass through multistage complications and form, including ground section, feed
Section, bending section.
Further, the PCB substrate realized by multilayer dielectric material is that layer pcb board is pressed by PP piece bonding
At being respectively formed top layer, the first internal layer, the second internal layer and bottom.
Further, height H=1.1~1.9mm of the ground section and feed section.
Further, interval S=2.1 between the ground section and feed point section~2.5mm.
Further, the internal diameter of the via hole is 0.3~0.4mm.
Further, PP thickness PP_23=0.28~0.3mm between second internal layer and bottom.
Compared with prior art, the utility model has the beneficial effects that the utility model is a kind of applies on bluetooth headset
Extra small structure size pcb board carry monopole Bluetooth antenna, for the Bluetooth antenna of identical structure feature in the market, it
Have small in size, at low cost, communication stabilization, the good feature of parameter consistency.
1, antenna conductor is etched respectively PCB substrate top layer, bottom copper foil on, by metallic vias by top layer, bottom
The antenna conductor of layer is electrically connected, and antenna conductor is etched in little space.
2, meet the length of antenna conductor by being bent PCB substrate top layer and the relevant antenna conductor of bottom,
The design requirement of the parameters such as impedance, bandwidth and the radiation directivity to antenna conductor is also fully achieved simultaneously.
3, the anode of the charge power supply of bluetooth headset battery, cathode are hidden in 2 interior interlayers of PCB substrate, in this way may be used
To enhance the directionality of Bluetooth antenna radiation and the efficiency of aerial radiation, equally also achieves bluetooth headset and join in process of production
Several consistency improves the reliability and stability of product.
4, the utility model is by reducing the size of antenna, can increase product flexibility in design and function
Expandability, while efficiency of the product in test, production process can be improved, the overall cost of product is reduced, product is reduced
Delivery cycle.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model.
Fig. 2 is the structural schematic diagram of Fig. 1 bottom heat radiation system.
Fig. 3 is the partial structural diagram for placing binocular projector.
Fig. 4 puts top conductors structural map for another charge power supply positive and negative anodes pad.
Fig. 5 is the bottom layer conductors structural map of Fig. 4.
Label character described in figure indicates are as follows: 1, PCB substrate；2, antenna conductor；3, conductive layer；4, via hole；5, pad；6,
Positive terminal pad；7, negative terminal pad；8, PP piece；21, upper antenna conductor；22, lower antenna conductor；101, top layer；102, the first internal layer；
103, the second internal layer；104, bottom；211, ground section；212, section is fed；213, bending section.
Specific embodiment
In order to enable those skilled in the art to better understand the technical solutions of the present invention, with reference to the accompanying drawing to this reality
Be described in detail with novel, the description of this part be only it is exemplary and explanatory, should not be to the protection scope of the utility model
There is any restriction effect.
As shown in Figure 1-Figure 3, the utility model provides a kind of bluetooth headset pcb board load antenna, it includes by multilayer dielectric
The PCB substrate 1 and antenna conductor 2 that material is realized, the PCB substrate 1 realized by multilayer dielectric material are that 4 layers of pcb board pass through
PP piece bonding presses, and is respectively formed top layer 101, the first internal layer 102, the second internal layer 103 and bottom 104, the PCB base
There is the via hole 4 (metallization of via hole 4 can be used existing heavy copper electroplating technology and complete) for penetrating through and metallizing, described on plate 1
4 hole wall of via hole forms conductive layer 3 or directlys adopt conducting wire connection；The etching of antenna conductor 2 is in 1 top layer copper foil of PCB substrate
Upper antenna conductor 21 is led with the lower antenna conductor 22 in 1 bottom copper foil of PCB substrate, the upper antenna conductor 21 is etched with lower antenna
Body 22 is electrically connected by conductive layer 3.
In the present embodiment, PCB substrate 1 is designed as multilayered structure, antenna conductor 2 is divided into upper and lower two pieces of etchings in PCB
The top layer 101 and bottom 104 of substrate 1, and be electrically connected by metallic vias 4, so that the length of antenna conductor 2 is in the confined space
It is inside etched, while to make the length of antenna be equal to the 1/4 of wavelength, it can be by the upper antenna conductor 21 of antenna conductor 2 and lower day
Line conductor 22 carries out multistage complications respectively, to increase its length, the radiation intensity of antenna and radiation efficiency is made to be in optimum state.
In the further preferred embodiment of the utility model, since bluetooth headset is formed by different device configurations, according to
The scene requirement that bluetooth headset uses, Bluetooth antenna need to meet the isotropic directivity or multidirectional of antenna in design；Cause
This, forbids the device for having conductor characteristics to place near the Bluetooth antenna and RF signal circuit, in this way in shorter range
It can guarantee that Bluetooth RF signal can be carried out effectively transmitting/reception！Here it is penetrate mentioned by some communication terminal devices
Frequently clearance zone " ", in the application of general blue tooth products, the requirement based on Bluetooth antenna performance, parameter, in Bluetooth antenna
Surrounding minimum clearance zone is that cannot place the device for having conductor characteristics in 5mm；And battery, loudspeaker in the component of bluetooth headset
, the copper foil on the sealing wire of key, loudspeaker and battery, PCB is all the device for having conductor characteristics；In this regard, can will have
The pad 5 of positive terminal pad 6 and negative terminal pad 7 is arranged in the multilayer dielectric material of PCB substrate 1, and by positive terminal pad 6 and cathode
Spacing V1 between pad 7 is designed as 1.2~1.3mm, and the anode of the charge power supply of bluetooth headset battery, cathode are hidden in
The directionality of Bluetooth antenna radiation and the efficiency of aerial radiation can be enhanced in 2 interior interlayers of PCB substrate 1 in this way.
Preferably, height H=1.1~1.9mm of the ground section 211 and feed section 212.
Preferably, interval S=2.1~2.5mm between the ground section 211 and feed point section 212.
Preferably, the internal diameter of the via hole 4 is 0.3~0.4mm.
Preferably, PP thickness PP_23=0.28~0.3mm between second internal layer 103 and bottom 104.
In the preferred embodiment in the utility model, the spacing V1 between positive terminal pad 6 and negative terminal pad 7 is designed as
1.2mm sets 1.1mm for the height H of ground section 211 and feed section 212, between ground section 211 and feed point section 212
It is set as 2.4mm away from S, sets 0.4mm for via hole internal diameter, the PP thickness PP_23 between the second internal layer 103 and bottom 104 is set
When being set to 0.29mm, the radiation directivity and radiation efficiency of the onboard antenna are best.
It should be noted that, in this document, the terms "include", "comprise" or its any other variant are intended to non-row
His property includes, so which element the process, method, article or the device that include a series of elements not only include, and
And further include other elements that are not explicitly listed, or further include for this process, method, article or device institute it is intrinsic
Element.
Specific case used herein is expounded the principles of the present invention and embodiment, above example
Illustrate the method and its core concept for being merely used to help understand the utility model.The above is only the preferred of the utility model
Embodiment, it is noted that due to the finiteness of literal expression, and objectively there is unlimited specific structure, for this technology
For the those of ordinary skill in field, without departing from the principle of this utility model, several improvement, retouching can also be made
Or variation, above-mentioned technical characteristic can also be combined in the right way；These improve retouching, variation or combination, or not
It is improved that the conception and technical scheme of utility model are directly applied into other occasions, it is regarded as the protection of the utility model
Range.
Claims (9)
1. a kind of bluetooth headset pcb board carries antenna, which is characterized in that it includes:
By the PCB substrate (1) of multilayer dielectric material realization, there is the via hole for penetrating through and metallizing on the PCB substrate (1)
(4), to form conductive layer (3) in the via hole (4) hole wall；
Antenna conductor (2), upper antenna conductor (21) and etching of antenna conductor (2) etching in PCB substrate (1) top layer copper foil
In the lower antenna conductor (22) of PCB substrate (1) bottom copper foil, the upper antenna conductor (21) is with lower antenna conductor (22) by leading
Electric layer (3) is electrically connected.
2. a kind of bluetooth headset pcb board according to claim 1 carries antenna, which is characterized in that the PCB substrate (1)
Pad (5) are provided in multilayer dielectric material.
3. a kind of bluetooth headset pcb board according to claim 2 carries antenna, which is characterized in that the pad (5) is anode
Pad (6) and negative terminal pad (7), wherein spacing V1=1.2~1.3mm between positive terminal pad (6) and negative terminal pad (7).
4. a kind of bluetooth headset pcb board according to claim 1 carries antenna, which is characterized in that the upper antenna conductor
(21) it is formed by multistage complications with lower antenna conductor (22), including ground section (211), feed section (212), bending section
(213)。
5. a kind of bluetooth headset pcb board according to claim 1 carries antenna, which is characterized in that described by multilayer dielectric material
The PCB substrate (1) that material is realized is that 4 layers of pcb board are pressed by PP piece bonding, is respectively formed top layer (101), the first internal layer
(102), the second internal layer (103) and bottom (104).
6. a kind of bluetooth headset pcb board according to claim 4 carries antenna, which is characterized in that the ground section (211) and
Feed the height H=1.1~1.9mm of section (212).
7. a kind of bluetooth headset pcb board load antenna according to claim 4 or 6, which is characterized in that the ground section
(211) interval S=2.1~2.5mm between feed point section (212).
8. a kind of bluetooth headset pcb board according to claim 1 carries antenna, which is characterized in that the internal diameter of the via hole (4)
For 0.3~0.4mm.
9. a kind of bluetooth headset pcb board according to claim 5 carries antenna, which is characterized in that second internal layer (103)
PP thickness PP_23=0.28~0.3mm between bottom (104).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920322480.1U CN209282402U (en) | 2019-03-14 | 2019-03-14 | A kind of bluetooth headset pcb board load antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920322480.1U CN209282402U (en) | 2019-03-14 | 2019-03-14 | A kind of bluetooth headset pcb board load antenna |
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| Publication Number | Publication Date |
|---|---|
| CN209282402U true CN209282402U (en) | 2019-08-20 |
Family
ID=67606595
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920322480.1U Active CN209282402U (en) | 2019-03-14 | 2019-03-14 | A kind of bluetooth headset pcb board load antenna |
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| Country | Link |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110767990A (en) * | 2019-09-24 | 2020-02-07 | 深圳市信维通信股份有限公司 | PCB antenna and preparation method thereof |
| CN111370859A (en) * | 2020-01-15 | 2020-07-03 | 杭州涂鸦信息技术有限公司 | PCB board carries antenna |
| CN111864371A (en) * | 2020-08-13 | 2020-10-30 | 深圳市凌瑞特科技有限公司 | Bluetooth antenna device with three-dimensional structure and Bluetooth equipment |
| CN113690621A (en) * | 2021-08-30 | 2021-11-23 | 杭州泛利科技有限公司 | Miniaturized high efficiency bluetooth antenna based on multilayer PCB board |
-
2019
- 2019-03-14 CN CN201920322480.1U patent/CN209282402U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110767990A (en) * | 2019-09-24 | 2020-02-07 | 深圳市信维通信股份有限公司 | PCB antenna and preparation method thereof |
| CN110767990B (en) * | 2019-09-24 | 2021-12-03 | 深圳市信维通信股份有限公司 | PCB antenna and preparation method thereof |
| CN111370859A (en) * | 2020-01-15 | 2020-07-03 | 杭州涂鸦信息技术有限公司 | PCB board carries antenna |
| CN111864371A (en) * | 2020-08-13 | 2020-10-30 | 深圳市凌瑞特科技有限公司 | Bluetooth antenna device with three-dimensional structure and Bluetooth equipment |
| CN113690621A (en) * | 2021-08-30 | 2021-11-23 | 杭州泛利科技有限公司 | Miniaturized high efficiency bluetooth antenna based on multilayer PCB board |
| CN113690621B (en) * | 2021-08-30 | 2024-05-07 | 杭州泛利科技有限公司 | Miniaturized high efficiency bluetooth antenna based on multilayer PCB board |
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