CN206774681U - A kind of directional aerial - Google Patents
A kind of directional aerial Download PDFInfo
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- CN206774681U CN206774681U CN201720342179.8U CN201720342179U CN206774681U CN 206774681 U CN206774681 U CN 206774681U CN 201720342179 U CN201720342179 U CN 201720342179U CN 206774681 U CN206774681 U CN 206774681U
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- antenna
- directional aerial
- medium substrate
- extension
- antenna body
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Abstract
The utility model discloses a kind of directional aerial, belong to antenna technical field.Directional aerial includes medium substrate, antenna floor and antenna radiator；Antenna floor is located at the lower surface of medium substrate, and antenna radiator is located at the upper surface of medium substrate；Antenna radiator includes the second extension on the downside of the first extension and antenna body on the right side of antenna body, current feed department, antenna body；Current feed department is on the second extension.The directional aerial provided by the utility model embodiment, has stronger directionality, hence in so that the radiation length of signal is farther out.
Description
Technical field
Antenna technical field is the utility model is related to, more particularly to a kind of directional aerial.
Background technology
With the rapid development of wireless communication technology, the field involved by antenna technology is more and more extensive, many special
In, requirement for antenna performance also more and more higher.For the higher application of directivity requirement, such as apply distant in unmanned plane
The radio-frequency apparatus such as device are controlled, or are applied in the WIFI 5G communication systems of high transfer rate, are required to that stronger side must be provided
Tropism.
In the prior art, the directionality applied to the directional aerial in wireless system is poor so that signal can not be carried out far
Distance radiation.Therefore, it is necessary to which a kind of new directional aerial improves directionality.
Utility model content
In order to solve the problems of above-mentioned prior art, the utility model embodiment provides a kind of directional aerial.
The technical scheme is as follows：
First aspect, there is provided a kind of directional aerial, the directional aerial include medium substrate, antenna floor and antenna spoke
Beam；
The antenna floor is located at the lower surface of the medium substrate, and the antenna radiator is located at the medium substrate
Upper surface；
The antenna radiator includes antenna body, current feed department, the first extension on the right side of the antenna body and described
The second extension on the downside of antenna body；
The current feed department is on second extension.
With reference in a first aspect, in the first possible implementation, the directional aerial also includes being located at described second
Grounding parts below extension, the grounding parts are communicated by the via of the medium substrate with the antenna floor；
The directional aerial also includes coaxial cable, and the outer conductor of the coaxial cable is connected with the grounding parts, institute
The inner wire for stating coaxial cable is connected with the current feed department.
With reference to the possible implementation of the first of first aspect or first aspect, in second of possible implementation
In, the flat shape of the antenna body is rectangular, and the antenna body is provided with corner cut.
With reference to second of possible implementation of first aspect, in the third possible implementation, the corner cut
For two, two corner cuts are located on a pair of linea angulatas of the antenna body.
With reference to the third possible implementation of first aspect, in the 4th kind of possible implementation, described in two
Corner cut is located at the lower left corner and the upper right corner of the antenna body respectively.
With reference in a first aspect, in the 5th kind of possible implementation, second extension is L-shaped.
With reference to the 5th kind of possible implementation of first aspect, in the 6th kind of possible implementation, described second
Lower-left angular direction bending of the extension towards the antenna body.
With reference in a first aspect, in the 7th kind of possible implementation, the area of plane on the antenna floor is equal to described
The area of plane of medium substrate.
With reference in a first aspect, in the 8th kind of possible implementation, the dielectric constant of the medium substrate is less than 4.
With reference to first aspect to the 8th kind of any one possible implementation, in the 9th kind of possible implementation,
The thickness of the medium substrate is 1.6mm ± 0.2mm.
The beneficial effect brought of technical scheme that the utility model embodiment provides is：
Because antenna radiator and antenna floor are located at the both sides of medium substrate respectively, hence in so that antenna floor can be done
For good reflecting surface, the electromagnetic wave signal that antenna radiator is sent reflects away towards reflection direction, so that orientation day
Line has larger forward gain, while backward signal is suppressed, therefore enhances the directionality of directional aerial so that
The radiation length of signal is farther out.
Brief description of the drawings
, below will be to needed for embodiment description in order to illustrate more clearly of the technical scheme in the embodiment of the utility model
The accompanying drawing to be used is briefly described, it should be apparent that, drawings in the following description are only some realities of the present utility model
Example is applied, 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 the cross-sectional view for the directional aerial that the utility model embodiment provides；
Fig. 2 is the overlooking the structure diagram for the directional aerial that the utility model embodiment provides；
Fig. 3 is the present invention looks up structural representation for the directional aerial that the utility model embodiment provides；
Fig. 4 is radiation direction schematic diagram of the directional aerial in 5.4GHz frequencies of the utility model embodiment offer.
Embodiment
Embodiment of the present utility model is described below in detail, the example of embodiment is shown in the drawings, wherein from beginning to end
Same or similar label represents same or similar element or the element with same or like function.Below with reference to attached
The embodiment of figure description is exemplary, is only used for explaining the utility model, and it is not intended that to limitation of the present utility model.
In description of the present utility model, it is to be understood that term " " center ", " longitudinal direction ", " transverse direction ", " on ", " under ",
The orientation or position relationship of the instruction such as "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom ", " interior ", " outer " are
Based on orientation shown in the drawings or position relationship, it is for only for ease of description the utility model and simplifies description, rather than instruction
Or imply that signified device or element must have specific orientation, with specific azimuth configuration and operation, therefore be not understood that
For to limitation of the present utility model.In addition, term " first ", " second " be only used for describe purpose, and it is not intended that instruction or
Imply relative importance or the implicit quantity for indicating indicated technical characteristic.Thus, " first ", the spy of " second " are defined
Sign can be expressed 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.
, it is necessary to which explanation, unless otherwise clearly defined and limited, term " are pacified in description of the present utility model
Dress ", " connected ", " connection " should be interpreted broadly, for example, it may be fixedly connected or be detachably connected, or integratedly
Connection；Can be mechanical connection or electrical connection；Can be joined directly together, can also be indirectly connected 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 of the language in the utility model.
The utility model embodiment provides a kind of directional aerial, and the working frequency range of the directional aerial is 5~6G, Ke Yiying
In the scene for requiring higher used in directional, for example it can apply to such as in unmanned controller radio-frequency apparatus, can also
Applied in the WIFI 5G communication systems of high transfer rate, the utility model embodiment is not limited specific application scenarios
It is fixed.
Shown in reference picture 1, Fig. 1 shows the cross-sectional view of the directional aerial of the utility model embodiment, and this is fixed
Include medium substrate 10, antenna floor 20 and antenna radiator 30 to antenna, wherein, antenna floor 20 is located at medium substrate 10
Lower surface, antenna radiator 30 are located at the upper surface of medium substrate.A length of 22~26mm of the medium substrate, a width of 26~
30mm, it is preferable that a length of 23.96mm of the medium substrate, a width of 28mm.
Shown in reference picture 2, Fig. 2 shows the overlooking the structure diagram of the directional aerial of the utility model embodiment, antenna
Radiant body 30 includes antenna body 31, current feed department 32, first extension 33 on the right side of antenna body 31 and the downside of antenna body 31
The second extension 34；Current feed department 32 is on the second extension 34.
Wherein, medium substrate 10 is shaped as nearly cuboid；The material of antenna radiator 30 can be copper, Nitinol or
Foreign white copper, to ensure that antenna radiator 30 has good radiance；Antenna body 31, the first extension 33 and the second extension
Portion 34 is formed in one structure；First extension 33 is used for the circular polarisation for realizing directional aerial, and the second extension 34 is used to make to determine
Impedance matching between antenna and extraneous radio frequency circuit；The directional aerial surface is also sprayed provided with one layer of insulating protecting paint, so that
Erosion of the surface of directional aerial from surrounding bad border.
A kind of directional aerial that the utility model embodiment provides, because antenna radiator and antenna floor are located at Jie respectively
The both sides of matter substrate, hence in so that antenna floor can be as good reflecting surface, the electromagnetic wave that antenna radiator is sent is believed
Number reflect away towards reflection direction, so that directional aerial has larger forward gain, while backward signal is carried out
Suppress, therefore enhance the directionality of directional aerial so that the radiation length of signal is farther out.
Further, referring to figs. 1 to shown in Fig. 3, what Fig. 3 showed the directional aerial of the utility model embodiment looks up knot
Structure schematic diagram, directional aerial also include the grounding parts 35 located at the lower section of the second extension 34, and grounding parts 35 pass through medium substrate 10
Via communicated with antenna floor 20；Directional aerial also includes coaxial cable 40, outer conductor and the grounding parts 35 of coaxial cable 40
It is connected, the inner wire of coaxial cable 40 is connected with current feed department 32.
Wherein, grounding parts 35 insulate with antenna radiator 30；The via of medium substrate 10 could be arranged to two row side by side
Via, each column have three vias；Coaxial cable has dielectric layer, inner wire and outer conductor of the dielectric layer between coaxial cable
Between, coaxial cable is also associated with a connector, the radio circuit connection of the connector and radio-frequency apparatus.
Because the grounding parts 35 of directional aerial are communicated by the via of medium substrate 10 with antenna floor 20, coaxial cable 40
Outer conductor be connected with grounding parts 35, the inner wire of coaxial cable 40 is connected with current feed department 32 so as to coaxial cable
Between the inner wire and current feed department of welding, coaxial cable between outer conductor and grounding parts welding with antenna radiator
Homonymy is carried out, therefore can be easy to the production operation of directional aerial, while also allows for directional aerial being arranged in radio-frequency apparatus.
In addition, directional aerial is fed by using coaxial cable so that the radio-frequency apparatus being connected with coaxial cable
The radiofrequency signal inputted can be radiated by coaxial cable to antenna radiator.In useful application, 50 ohm are used
Coaxial cable fed.
Further, shown in reference picture 2, the flat shape of antenna body 31 is rectangular, and antenna body is provided with corner cut 311.
Wherein, antenna body 31 is located at the medium position of the upper surface of medium substrate 10, and antenna body 31 can be square,
The ratio between the length of side of antenna body 31 and the maximal side of medium substrate 10 are 1：1.3~1：1.6, in other embodiments,
The flat shape 31 of antenna body can be arranged to rectangle.
Because antenna body is provided with corner cut, hence in so that directional aerial in 5~6G frequency ranges with preferable directionality
While can have larger bandwidth.
Further, corner cut 311 is two, and two corner cuts 311 are located on a pair of linea angulatas of antenna body 31.Preferably,
Two corner cuts 311 are located at the lower left corner and the upper right corner of antenna body 31 respectively.Wherein, two corner cuts 311 have same shape.
It should be noted that in other specific embodiments, can also be set on antenna body in addition to corner cut 311
Corner cut.
Further, the second extension 34 is L-shaped, it is preferable that the second extension 34 is towards the lower left corner side of antenna body 31
To bending.
Specifically, the second extension 34 has first end and the second end, first end is connected to antenna body 31, and first end is leaned on
31 lower left corner of nearly antenna body, wherein, the width of first end is more than the width at the second end.
Due to directional aerial be typically all with 50 Ω or 75 Ω matches impedances, and that directional aerial has in itself is intrinsic
Impedance, therefore the second extension is arranged into L-shaped, enable to what the connector of antenna radiator and coaxial cable connected to penetrate
Impedance matching between frequency circuit.
Further, the area of plane on antenna floor 20 is equal to the area of plane of medium substrate 10, thus is ensureing to orient
While antenna has smaller size smaller, the area of plane and medium substrate identical antenna floor are enabled to as reflecting surface, will
The electromagnetic wave signal that antenna radiator is sent reflects away towards reflection direction.
Further, the dielectric constant of medium substrate 10 is less than 4.Preferably, the dielectric constant range of medium substrate 10 is
2.3~2.6.Because the dielectric constant of medium substrate is relatively low, therefore the gain of directional aerial can be improved.
Further, the thickness of medium substrate 10 is 1.6mm ± 0.2mm.
For directional aerial, the effective rate of utilization to realize radiant power reaches 70%, orientation day of the prior art
The medium substrate height of line need to be more than more than 5mm, and the directional aerial of the utility model embodiment only need to be by medium substrate 10
Thickness is arranged to 1.6mm ± 0.2mm；Further, since the thickness of medium substrate is smaller, hence in so that the size of directional aerial compared with
It is small, it is easy to be encapsulated in the radio-frequency apparatus of small volume.
Fig. 4 is that the directional aerial of the utility model embodiment works in the radiation direction schematic diagram of 5.4GHz frequencies, such as Fig. 4
It is shown, directional aerial is carried out by radio frequency instrument to test the directional diagram of resulting directional aerial in different directions, wherein,
A in Fig. 4 is the directional diagram of overlook direction, and the B in Fig. 4 is the directional diagram of rear apparent direction, and the C in Fig. 4 is the side of preceding apparent direction
D in Xiang Tu, Fig. 4 is the directional diagram for looking up direction, and the E in Fig. 4 is the directional diagram in left view direction, and the F in Fig. 4 is right apparent direction
Directional diagram, from the Pattern measurement result shown in Fig. 4, it is apparent that before the directional aerial of the utility model embodiment
It is larger to gain, there is stronger directionality.
Above-mentioned all optional technical schemes, alternative embodiment of the present utility model can be formed using any combination, herein
No longer repeat one by one.
Preferred embodiment of the present utility model is these are only, it is all in the utility model not to limit the utility model
Spirit and principle within, any modification, equivalent substitution and improvements made etc., should be included in protection model of the present utility model
Within enclosing.
Claims (10)
1. a kind of directional aerial, it is characterised in that the directional aerial includes medium substrate, antenna floor and antenna radiator；
The antenna floor is located at the lower surface of the medium substrate, and the antenna radiator is located at the upper table of the medium substrate
Face；
The antenna radiator includes the first extension on the right side of antenna body, current feed department, the antenna body and the antenna
The second extension on the downside of main body；
The current feed department is on second extension.
2. directional aerial according to claim 1, it is characterised in that the directional aerial also includes prolonging located at described second
Grounding parts below extending portion, the grounding parts are communicated by the via of the medium substrate with the antenna floor；
The directional aerial also includes coaxial cable, and the outer conductor of the coaxial cable is connected with the grounding parts, described same
The inner wire of shaft cable is connected with the current feed department.
3. directional aerial according to claim 1, it is characterised in that the flat shape of the antenna body is rectangular, institute
State antenna body and be provided with corner cut.
4. directional aerial according to claim 3, it is characterised in that the corner cut is two, and two corner cuts are located at
On a pair of linea angulatas of the antenna body.
5. directional aerial according to claim 4, it is characterised in that two corner cuts are located at the antenna body respectively
The lower left corner and the upper right corner.
6. directional aerial according to claim 1, it is characterised in that second extension is L-shaped.
7. directional aerial according to claim 6, it is characterised in that second extension is towards a left side for the antenna body
The bending of lower angular direction.
8. directional aerial according to claim 1, it is characterised in that the area of plane on the antenna floor, which is equal to, to be given an account of
The area of plane of matter substrate.
9. directional aerial according to claim 1, it is characterised in that the dielectric constant of the medium substrate is less than 4.
10. according to the directional aerial described in any one of claim 1~9, it is characterised in that the thickness of the medium substrate is
1.6mm±0.2mm。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720342179.8U CN206774681U (en) | 2017-04-01 | 2017-04-01 | A kind of directional aerial |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720342179.8U CN206774681U (en) | 2017-04-01 | 2017-04-01 | A kind of directional aerial |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206774681U true CN206774681U (en) | 2017-12-19 |
Family
ID=60630215
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720342179.8U Active CN206774681U (en) | 2017-04-01 | 2017-04-01 | A kind of directional aerial |
Country Status (1)
| Country | Link |
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| CN (1) | CN206774681U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106981726A (en) * | 2017-04-01 | 2017-07-25 | 禾邦电子(苏州)有限公司 | A kind of directional aerial |
| CN109742560A (en) * | 2018-12-29 | 2019-05-10 | 深圳Tcl新技术有限公司 | Directional gain antenna |
-
2017
- 2017-04-01 CN CN201720342179.8U patent/CN206774681U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106981726A (en) * | 2017-04-01 | 2017-07-25 | 禾邦电子(苏州)有限公司 | A kind of directional aerial |
| CN109742560A (en) * | 2018-12-29 | 2019-05-10 | 深圳Tcl新技术有限公司 | Directional gain antenna |
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