CN204885404U - Small -size PFC antenna that is applicable to bluetooth frequency channel - Google Patents
Small -size PFC antenna that is applicable to bluetooth frequency channel Download PDFInfo
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- CN204885404U CN204885404U CN201520675377.7U CN201520675377U CN204885404U CN 204885404 U CN204885404 U CN 204885404U CN 201520675377 U CN201520675377 U CN 201520675377U CN 204885404 U CN204885404 U CN 204885404U
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Abstract
The utility model discloses a small -size antenna that is applicable to the bluetooth frequency channel. This small -size PFC antenna that is applicable to bluetooth frequency channel includes radiating element, distributing point, ground plate and the line of rabbet joint, and radiating element, distributing point and ground plate be for covering the steel structure, and the antenna is whole to be located the one side that black covered the membrane, and the another side that black covered the membrane is the colloid, is used for stationary antenna. This antenna can satisfy small, facilitate the use, the clawback loss is little, high characteristics gain.
Description
Technical field
The present invention relates to antenna technical field, particularly relate to a kind of small-sized PFC antenna being applicable to Bluetooth band.
Background technology
Wireless communication system is widely used in every field in recent years, and user can not be subject to distance limit, utilizes wireless communication system to carry out the transmission of information and information.And antenna is one of element important in wireless communication field, the size at present in order to respond electronic product reduces and the diversity of outward appearance, and soft antenna, because possessing flexible, that application elasticity is large feature, is extensively incorporated in various electronic installation.
In recent years, everybody extensive concern that caused of this technology that can realize short-distance wireless communication of bluetooth.Current this technology is more and more used in the common apparatus such as mobile phone, PDA, notebook.The frequency range that bluetooth uses at present is global free frequency range, effectively will carry out communications, and this energy converter of antenna plays important role undoubtedly.
Antenna, as the bridge of radio communication, is the key realizing radio communication.Along with the development of wireless communication technology and electronic technology, the wireless electronic product in daily life becomes more and more less, more and more thinner, and more and more gentlier, and function becomes from strength to strength.Therefore research and develop a small-sized a kind of small-sized 2.4GHzFPC antenna being applicable to Bluetooth band, the research and development needs adapting to antenna miniaturization are problems that our needs solve.
Summary of the invention
Embodiments provide a kind of small-sized PFC antenna being applicable to Bluetooth band, can make a kind of small-sized PFC antenna applications being applicable to Bluetooth band on housing, its clawback loss, gain reach requirement.
Wherein, the small-sized PFC antenna being applicable to Bluetooth band comprises radiating element, distributing point and a ground plate, and radiating element, distributing point and ground plate are for covering steel structure, and entire physical is positioned at the one side of black covering film, the another side of black covering film is colloid, is used for fixing antenna.
Wherein, radiating element is for covering steel structure, and its steel structure is separated into inflection shape by the line of rabbet joint, and its one end is connected with distributing point.
Wherein, distributing point is rectangular configuration, is connected with described a kind of small-sized circuit board being applicable to the PFC antenna match of Bluetooth band by thimble.
Wherein, ground plate is rectangular configuration, and its one end is connected with distributing point.
Wherein, separate the line of rabbet joint of radiating element be snake without covering steel structure, the line of rabbet joint comprises the first revers turn part, the second revers turn part, the 3rd revers turn part that connect successively.
Wherein, the first revers turn part is vertical with the second revers turn part, and the second revers turn part is vertical with the 3rd revers turn part, and one end first revers turn part of the line of rabbet joint is unsettled port.
Wherein, a kind of small-sized shape being applicable to the PFC antenna of Bluetooth band is L-shaped, and for convenience of describing, we are by the radiating element positional representation L-shaped left side, and its length is 18mm, and ground plate position end is represented L-shaped is following, its length is 20mm.
Wherein, a kind of gain of small-sized 2.4GHzFPC antenna is 1.5-2dbi.
Wherein, a kind of small-sized frequency being applicable to the PFC antenna of Bluetooth band is 2.340GHz-2.440GHz, and bandwidth is 100MHz.
Pass through such scheme, the invention has the beneficial effects as follows: a kind of small-sized PFC antenna being applicable to Bluetooth band is provided with radiating element, current feed department and ground plate, one end of radiating element is connected with current feed department, the other end of current feed department is connected with ground plate, when antenna is by when the glue at the black covering film back side is on housing medium, clawback loss is low, and gain is high, its volume can be met little, the requirement of applied range.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme in the embodiment of the present invention, below the accompanying drawing used required in describing embodiment is briefly described, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.Wherein:
Fig. 1 is a kind of small-sized structural representation being applicable to the PFC antenna of Bluetooth band of the present invention;
Fig. 2 is a kind of small-sized radiative unit structure schematic diagram being applicable to the PFC antenna of Bluetooth band of the present invention;
Fig. 3 is a kind of small-sized distributing point structural representation being applicable to the PFC antenna of Bluetooth band of the present invention;
Fig. 4 is a kind of small-sized ground plate structural representation being applicable to the PFC antenna of Bluetooth band of the present invention;
Fig. 5 is a kind of small-sized slot line structure schematic diagram being applicable to the PFC antenna of Bluetooth band of the present invention
Fig. 6 is a kind of small-sized clawback damage curve figure being applicable to the PFC antenna of Bluetooth band of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiment.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under performing creative labour prerequisite, belong to the scope of protection of the invention.
Shown in Figure 1, Fig. 1 is a kind of small-sized structural representation being applicable to the PFC antenna of Bluetooth band of first embodiment of the invention.As shown in Figure 1, a kind of small-sized PFC antenna being applicable to Bluetooth band that the present embodiment discloses comprises radiating element 1, distributing point 2, ground plate 3 and the line of rabbet joint 4, radiating element 1 and distributing point 2 and ground plate 3 are for covering steel structure, entire physical is positioned at the one side of black covering film (figure does not look), the another side of black covering film is colloid, is used for fixing antenna.Radiating element 1 is for covering steel structure, and its steel structure is separated into inflection shape by the line of rabbet joint 4, and its one end is connected with distributing point 2.In other embodiments, those skilled in the art can also utilize other metal material to replace copper, such as gold.
A kind of small-sized PFC antenna being applicable to Bluetooth band of the present embodiment adopts meander technology, to make electric current bend, effectively can extend the active path of electric current.Namely when do not change a kind of small-sized be applicable to the physical dimension of the PFC antenna of Bluetooth band effectively extend current path, reduce a kind of small-sized resonance frequency being applicable to the PFC antenna of Bluetooth band.Ideal rectangle 2.4GHz antenna can regard one section wide as the long micro-band low-resistance transmission line for L of W, it resonance frequency meet following formula:
（1）
Wherein, c is the light velocity in vacuum; L is a kind of length of ideal rectangle antenna; W is a kind of width of ideal rectangle antenna; For the relative dielectric constant of medium substrate 11; μ
rfor the magnetic conductive rate of medium substrate 11.A kind of small-sized PFC antenna being applicable to Bluetooth band in the present embodiment extends the current path of radiating element in the theoretical foundation of the design of ideal rectangle 2.4GHz antenna by loading L-type structure, to reach the purpose of design of antenna miniaturization.
As shown in Figure 2, wherein, radiating element 1 is for covering steel structure, and as shown in the figure, its steel structure is separated into inflection shape by the line of rabbet joint 4, and its one end is connected with distributing point 2.As shown in the figure, according to counterclockwise its length of side being divided into F1, F2, F3 and F4, preferably, the length of F1 is the length of 7.5mm, F2 be 5.1mm, F3 length be 1mm, F4 length is 16mm.
As shown in Figure 3, wherein, distributing point 2 is rectangular configuration.Preferably, distributing point width K1 is 1mm, and length is K2 is 3mm, and distributing point 2 is connected with described a kind of small-sized circuit board being applicable to the PFC antenna match of Bluetooth band by thimble.
As shown in Figure 4, wherein, ground plate 3 is rectangular configuration.Preferably, ground plate length is J1 is 11.5mm, and width J2 is 5mm, and described ground plate is connected with distributing point and is connected with described a kind of small-sized circuit board being applicable to the PFC antenna match of Bluetooth band by thimble.
As shown in Figure 5, wherein, the line of rabbet joint 4 is in inflection line without covering steel structure, and the line of rabbet joint 4 comprises the first revers turn part 41, second revers turn part 42, the 3rd revers turn part 43 that connect successively; The line of rabbet joint 4 has 2 corners.First revers turn part 41 is vertical with the second revers turn part 42, and the second revers turn part 42 is vertical with the 3rd revers turn part 43, and namely the inflection angle of the line of rabbet joint 4 is 90 degree, and one end of the line of rabbet joint 4 is the unsettled port of the 3rd revers turn part 43.
Preferably, its width C 1 of the first revers turn part 41 is 0.5mm, length C2 is 16mm, and its width C 3 of the second revers turn part 42 is 1mm, length C4 is 4.6mm, and the 3rd its length C5 of revers turn part 43 is 3.4mm, and width C 6 is 2mm.
Shown in the small-sized clawback damage curve figure being applicable to the PFC antenna of Bluetooth band as a kind of in Fig. 6, antenna return loss theory calls is less than-10dB, and this antenna clawback loss can reach-22dB at peak value place, meets user demand.
The small-sized shape being applicable to the PFC antenna of Bluetooth band is preferably a L-shaped, and T-shaped its length of left side L is 18mm, and the following W width of L-shaped is 20mm.In other embodiments of the invention, a kind of small-sized PFC antenna being applicable to Bluetooth band can also be arranged to other shapes by the shape difference of black covering film, such as rectangle or square by those skilled in the art.
In impedance bandwidth, a kind of small-sized return loss requirement being applicable to the PFC antenna of Bluetooth band is less than-10dB, the present embodiment disclose a kind of small-sized return loss being applicable to the PFC antenna 10 of Bluetooth band and can reach-22dB, requiring that band limits internal impedance meets the demands.
The present embodiment to disclose a kind of small-sized frequency being applicable to the PFC antenna of Bluetooth band be 2.340GHz-2.440GHz, a kind of small-sized frequency being applicable to the PFC antenna of Bluetooth band is preferably 2.4GHz, and bandwidth is 100MHz.
The present embodiment to disclose a kind of small-sized gain being applicable to the PFC antenna of Bluetooth band be 1.5-2dbi, the gain level of antenna meets instructions for use.
The foregoing is only embodiments of the invention; not thereby the scope of the claims of the present invention is limited; every utilize specification of the present invention and accompanying drawing content to do equivalent structure or equivalent flow process conversion; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present invention.
Claims (7)
1. the small-sized PFC antenna being applicable to Bluetooth band, it is characterized in that, described, a kind of small-sized PFC antenna being applicable to Bluetooth band comprises radiating element, distributing point, ground plate and the line of rabbet joint, described radiating element, distributing point and ground plate are for covering steel structure, described entire physical is positioned at the one side of black covering film, and the another side of black covering film is colloid, is used for fixing antenna.
2. a kind of small-sized PFC antenna being applicable to Bluetooth band according to claim 1, it is characterized in that, described radiating element is for covering steel structure, and its steel structure is separated into inflection shape by the line of rabbet joint, and its one end is connected with distributing point.
3. a kind of small-sized PFC antenna being applicable to Bluetooth band according to claim 1, it is characterized in that, described distributing point is rectangular configuration, and described current feed department is connected with distributing point and is connected with described a kind of small-sized circuit board being applicable to the PFC antenna match of Bluetooth band by thimble.
4. a kind of small-sized PFC antenna being applicable to Bluetooth band according to claim 1, it is characterized in that, described ground plate is rectangular configuration, and described ground plate is connected with distributing point and is connected with described a kind of small-sized circuit board being applicable to the PFC antenna match of Bluetooth band by thimble.
5. a kind of small-sized PFC antenna being applicable to Bluetooth band according to claim 1, it is characterized in that, the described line of rabbet joint is inflection structure, and the described line of rabbet joint comprises the first revers turn part, the second revers turn part and the 3rd revers turn part that connect successively; First revers turn part is vertical with the second revers turn part, and the second revers turn part is vertical with the 3rd revers turn part, and one end the 3rd revers turn part of the line of rabbet joint is unsettled port.
6. a kind of small-sized PFC antenna being applicable to Bluetooth band according to claim 1, is characterized in that, described a kind of small-sized shape being applicable to the PFC antenna of Bluetooth band is L-shaped, and L word left side length is 18mm, L word lower end length is 20mm.
7. a kind of small-sized PFC antenna being applicable to Bluetooth band according to claim 1, it is characterized in that, described a kind of small-sized operating frequency range being applicable to the PFC antenna of Bluetooth band is 2.340GHz-2.440GHz, center frequency point 2.4GHz, and bandwidth is 100MHz.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520675377.7U CN204885404U (en) | 2015-09-02 | 2015-09-02 | Small -size PFC antenna that is applicable to bluetooth frequency channel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520675377.7U CN204885404U (en) | 2015-09-02 | 2015-09-02 | Small -size PFC antenna that is applicable to bluetooth frequency channel |
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| Publication Number | Publication Date |
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| CN204885404U true CN204885404U (en) | 2015-12-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520675377.7U Active CN204885404U (en) | 2015-09-02 | 2015-09-02 | Small -size PFC antenna that is applicable to bluetooth frequency channel |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105609926A (en) * | 2016-03-02 | 2016-05-25 | 青岛中科移动物联科技有限公司 | Small-sized PCB antenna suitable for Bluetooth system |
| CN105762510A (en) * | 2016-04-22 | 2016-07-13 | 青岛中科移动物联科技有限公司 | PCB antenna of double-frequency WiFi |
| CN106486731A (en) * | 2015-09-02 | 2017-03-08 | 深圳洲斯移动物联网技术有限公司 | A kind of small-sized PFC antenna being applied to Bluetooth band |
-
2015
- 2015-09-02 CN CN201520675377.7U patent/CN204885404U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106486731A (en) * | 2015-09-02 | 2017-03-08 | 深圳洲斯移动物联网技术有限公司 | A kind of small-sized PFC antenna being applied to Bluetooth band |
| CN105609926A (en) * | 2016-03-02 | 2016-05-25 | 青岛中科移动物联科技有限公司 | Small-sized PCB antenna suitable for Bluetooth system |
| CN105762510A (en) * | 2016-04-22 | 2016-07-13 | 青岛中科移动物联科技有限公司 | PCB antenna of double-frequency WiFi |
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