CN213905608U - Take netted reflector and have yagi antenna of 5G MIMO function - Google Patents
Take netted reflector and have yagi antenna of 5G MIMO function Download PDFInfo
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- CN213905608U CN213905608U CN202022680392.4U CN202022680392U CN213905608U CN 213905608 U CN213905608 U CN 213905608U CN 202022680392 U CN202022680392 U CN 202022680392U CN 213905608 U CN213905608 U CN 213905608U
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Abstract
The utility model discloses a yagi antenna with a reticular reflector and 5G MIMO function, wherein the reflector, a main vibrator and a director are arranged along the axial direction of a middle shaft beam in sequence; the main vibrator comprises four pairs of annular half-wave folded vibrators, and the vibrator fixing pieces are serially arranged at the middle shaft cross beam; each pair of annular half-wave folded vibrators is provided with a feed terminal, and the four pairs of annular half-wave folded vibrators are sleeved outside the vibrator fixing piece; the annular half-wave folded vibrator is connected with the vibrator fixing piece, and the connection part of the annular half-wave folded vibrator and the vibrator fixing piece is opposite to the feed terminal; one end of the bundling feeder line is connected with the main oscillator; the reflector comprises a metal net, and the metal net is arranged at the middle shaft cross beam in series; the guide fixing piece is arranged at the middle shaft cross beam in series; eight metal columns are connected to the director fixing part in a staggered mode. The utility model has the advantages of can transmit 5G high frequency signal, realize the MIMO performance.
Description
Technical Field
The utility model relates to a wireless radio frequency antenna field especially relates to a take netted reflector and have yagi antenna of 5G MIMO function.
Background
In scenes such as high-speed railways, tunnels of highways, urban subways and the like, 5G (fifth generation mobile communication) wireless signal coverage is needed, 5G uses high-frequency communication, and originally, a leakage cable used by 3G/4G cannot support a 5G frequency band, so that a wireless radio frequency device (antenna) is needed to be applied to transmitting and receiving wireless signals. Yagi antenna has characteristics of high gain and good directivity as a radio frequency antenna, and is widely used in linear coverage scenes such as high-speed railways, tunnels of highways, and urban subways, but yagi antenna originally used in 3G/4G period cannot meet requirements of 5G high-frequency communication, and also has MIMO (multiple input multiple output) performance, and therefore cannot be used in 5G mobile communication.
At present, the integrated base station is mainly used for 5G signal coverage of tunnels and subways and is low in power, antennas used by the integrated base station are integrated in the base station, most antennas are 4x4 MIMO plate-shaped antennas, horizontal lobe angles and vertical lobe angles of the plate-shaped antennas are large, directivity is not good, a large amount of power waste is caused when the integrated base station is used for linear coverage scenes such as tunnels and subways, and coverage distance is limited.
SUMMERY OF THE UTILITY MODEL
Therefore, a yagi antenna with a mesh reflector and a 5G MIMO function needs to be provided to solve the problem that the yagi antenna in the prior art does not support 5G high frequency communication and does not have MIMO performance.
In order to achieve the above object, the inventor provides a yagi antenna with a mesh reflector and 5G MIMO function, comprising a central axis beam, a main oscillator, an oscillator fixing piece, a reflector, a director fixing piece and a bundling feeder line; the reflector, the main vibrator and the director are sequentially arranged along the axial direction of the middle shaft beam;
the main vibrator comprises four pairs of annular half-wave folded vibrators, and the vibrator fixing pieces are serially arranged at the middle shaft cross beam; each pair of annular half-wave folded vibrators is provided with a feed terminal, and the four pairs of annular half-wave folded vibrators are sequentially arranged along the axial direction of the middle shaft cross beam and are all sleeved outside the vibrator fixing piece; the annular half-wave folded vibrator is connected with the vibrator fixing piece, and the connection part of the annular half-wave folded vibrator and the vibrator fixing piece is opposite to the feed terminal;
one end of the bundling feeder line is connected with the four annular half-wave folded vibrators, and the other end of the bundling feeder line is connected with the signal generation main equipment;
the reflector comprises a metal net, and the metal net is arranged at the middle shaft cross beam in series;
the director comprises eight metal posts; the guide fixing piece is arranged at the middle shaft cross beam in series; one end of each of the eight metal columns is connected to the guide fixing part, and the eight metal columns are arranged in a staggered mode.
As a preferred structure of the present invention, the diameter of the mesh of the metal mesh is smaller than 0.1 wavelength.
As a preferred structure of the present invention, the distance between the reflector and the main oscillator is 0.5 wavelength to 1 wavelength.
As an optimized structure of the utility model, the axis crossbeam is eight prisms, oscillator mounting and director mounting are the eight-edge tubulose with axis crossbeam looks adaptation.
As a preferred structure of the utility model, each pair of annular half-wave folded vibrators is provided with a vibrator fixing piece; the vibrator fixing pieces of each pair of annular half-wave folded vibrators are sequentially arranged along the axial direction of the middle shaft beam, and the adjacent vibrator fixing pieces are mutually abutted.
As a preferable structure of the present invention, the ring-shaped half-wave folded dipole is formed by bending a metal tube having a diameter of 0.8c to 1.2cm into a ring shape, and the feeding terminal is connected to a tip of the metal tube by a metal lead.
As a preferred structure of the utility model, the oscillator is converted into to cyclic annular half-wave is oval annular, the feed terminal sets up in the one end department of the minor axis of the oscillator is converted into to cyclic annular half-wave, and the other end department of the minor axis of the oscillator is converted into for cyclic annular half-wave to the junction of the oscillator and oscillator mounting is converted into to cyclic annular half-wave.
As a preferred structure of the utility model, the guiding devices are provided with 3 pairs to 6 pairs, each pair of guiding devices is equipped with a guiding device fixing part, and each pair of guiding devices is arranged at the middle shaft beam through the guiding device fixing part and is sequentially arranged along the axial direction of the middle shaft beam; each auxiliary director is positioned at one side of the main oscillator.
As a preferred structure of the utility model, eight metal posts divide into four pairs equally, and every is equipped with director mounting to metal post, and well axle crossbeam department is located to four director mountings cluster in proper order, and adjacent director mounting supports each other and leans on the setting.
As an optimized structure of the present invention, the distance between adjacent directors is 0.5 wavelength to 1 wavelength, and the distance between the directors adjacent to the main oscillator is 0.5 wavelength to 1 wavelength.
Different from the prior art, the yagi antenna with the mesh reflector and the 5G MIMO function in the technical scheme comprises a middle shaft beam, a main oscillator, an oscillator fixing piece, a reflector, a director fixing piece and a bundling feeder line; the main vibrator comprises four pairs of annular half-wave folded vibrators, the reflector comprises a metal net, and the director comprises eight metal columns. The antenna has the capability of transmitting 5G high-frequency signals, can solve the problem that the existing yagi antenna does not support 5G high-frequency communication, has the performances of 4x4 MIMO (multiple input multiple output), high gain and narrow wave speed, and can solve the problem of coverage of 5G signals in linear coverage scenes of tunnels of high-speed railways and highways, urban subways and the like.
Drawings
Fig. 1 is a perspective view of a yagi antenna with a mesh reflector and a 5G MIMO function according to an embodiment of the present invention;
fig. 2 is a cross-sectional view of a yagi antenna with a mesh reflector and a 5G MIMO function according to an embodiment of the present invention;
fig. 3 is a cross-sectional view illustrating a connection between a main vibrator and a vibrator fixing member according to an embodiment of the present invention;
fig. 4 is a cross-sectional view of the connection between the ring-shaped half-wave folded dipole and the dipole fixture according to an embodiment of the present invention;
fig. 5 is a cross-sectional view of a vibrator fixing member according to an embodiment of the present invention;
fig. 6 is a three-dimensional structure diagram of the vibrator fixing member according to an embodiment of the present invention;
fig. 7 is a cross-sectional view of a guide coupled to a guide mount according to an embodiment of the present invention;
fig. 8 is a structural view of a guide according to an embodiment of the present invention;
fig. 9 is a structural view of a guide fixture according to an embodiment of the present invention.
Description of reference numerals:
1. a middle shaft beam;
2. a main vibrator;
200. an annular half-wave folded vibrator; 201. a feed terminal; 202. a fixing member; 203. a bolt;
3. a vibrator fixing member;
300. a screw hole; 301. a through hole;
4. a reflector;
5. an antenna fixing bracket;
6. a director;
600. a metal post; 601. a screw;
7. a director fixture; 700. and (4) a nut.
Detailed Description
To explain technical contents, structural features, and objects and effects of the technical solutions in detail, the following detailed description is given with reference to the accompanying drawings in conjunction with the embodiments.
The utility model provides a take netted reflector and have yagi antenna of 5G MIMO function, for wireless radio frequency antenna, especially support 5G high frequency communication, and possess the performance of MIMO (multiple input multiple output), can solve the line type such as the tunnel of high-speed railway, highway and city subway and cover the coverage problem of scene 5G signal.
Referring to fig. 1 and 2, in an embodiment, the yagi antenna with mesh reflector and 5G MIMO function includes a central axis beam 1, a main oscillator 2, an oscillator fixing member 3, a reflector 4, a director 6, a director fixing member 7 and a bundling feeder; the middle shaft beam 1 is made of metal materials and is used for sleeving and fixing accessories, namely a main oscillator 2, an oscillator fixing piece 3, a reflector 4, a director 6 and a director fixing piece 7. The reflector 4, the main vibrator 2 and the director 6 are sequentially arranged along the axial direction of the middle shaft beam 1.
The main vibrator 2 includes four pairs of half-wave folded ring vibrators 200, and the half-wave folded ring vibrators 200 are bent from a metal pipe into a ring shape, and the size of the half-wave folded ring vibrators may be 0.8c-1.2cm in diameter. Each pair of half-wave ring-shaped folded dipoles 200 is provided with a feed terminal 201, when the half-wave ring-shaped folded dipoles 200 are bent into a ring shape from a metal tube, the feed terminal 201 is connected to the end of the metal tube by a metal lead, and the feed terminal 201 is connected with a coaxial cable. In a preferred embodiment, the half-wave folded dipole 200 has an elliptical ring shape.
The vibrator fixing piece 3 is arranged at the middle shaft cross beam 1 in series; referring to fig. 3, four pairs of half-wave ring folded vibrators 200 are arranged in sequence along the axial direction of the central axis beam 1 and are all sleeved outside the vibrator fixing member 3, and the four pairs of half-wave ring folded vibrators 200 are arranged in a staggered manner and can be staggered by 90 degrees in sequence by taking the central axis beam 1 as an axis; the annular half-wave folded vibrator 200 is connected with the vibrator fixing member 3, and the connection position of the annular half-wave folded vibrator 200 and the vibrator fixing member 3 is opposite to the feed terminal 201. Referring to fig. 4, when the ring-shaped half-wave folded dipole 200 is in an elliptical ring shape, the feeding terminal 201 is disposed at one end of the short axis of the ring-shaped half-wave folded dipole 200, and the connection point between the ring-shaped half-wave folded dipole 200 and the dipole fixing member 3 is the other end of the short axis of the ring-shaped half-wave folded dipole 200.
One end of the bundling feeder line is connected with the four annular half-wave folded vibrators 200, the other end of the bundling feeder line is connected with the signal generation main equipment, and signals of the four annular half-wave folded vibrators 200 are transmitted through the bundling cable.
Referring to fig. 1 and 2, the reflector 4 is located at one side of the main oscillator 2 and plays a role of attenuating electric waves transmitted from the direction or transmitting electric waves from the antenna; the reflector 4 comprises a metal net, and the metal net is arranged at the middle shaft cross beam 1 in a series mode. The front-to-back ratio of the antenna can be greatly improved by using the mesh-shaped reflector 4, so that the gain of the antenna is increased, and meanwhile, the back lobe interference is reduced.
In a further embodiment, the mesh diameter of the metal mesh should be less than 0.1 wavelength.
Referring to fig. 1 and 7, the director 6 is located at the other side of the main vibrator 2, and can gather the electric wave transmitted from the one side or emitted to the one side; the director 6 comprises eight metal posts 600; the director fixing piece 7 is arranged at the middle shaft cross beam 1 in series; one end of each of the eight metal posts 600 is connected to the director fixing member 7, and the eight metal posts 600 are arranged in a staggered manner.
Theoretically, the more directors 6, the better the directivity and the higher the gain, and in practical experience, after exceeding four or five directors 6, the increase of the 'advantage' is not obvious, and 3-6 pairs are preferable. Therefore, in a preferred embodiment, the directors 6 are provided with 3 pairs to 6 pairs, each pair of directors 6 is provided with a director fixing member 7, and each pair of directors 6 is arranged at the middle shaft cross beam 1 through the director fixing member 7 and arranged in sequence along the axial direction of the middle shaft cross beam 1; each sub director 6 is located on one side of the main vibrator 2. When the director 6 is provided in a plurality of pairs, the length of the metal post 600 of each pair is slightly shorter than the length of the metal post 600 of the pair adjacent thereto and close to the main vibrator 2.
In one embodiment, the adjacent directors 6 are spaced apart by 0.5 wavelength-1 wavelength, and the directors 6 adjacent to the main oscillator 2 are spaced apart by 0.5 wavelength-1 wavelength.
In one embodiment, the reflector 4 and the main oscillator 2 have a wavelength of 0.5-1 wavelength.
In one embodiment, the central axis beam 1 is an octagonal prism having a length of 50cm to 100cm and a diameter of 2cm to 6cm, that is, the central axis beam 1 has eight side surfaces and two end surfaces, please refer to fig. 5, 6 and 9, the vibrator fixture 3 and the director fixture 7 are both octagonal tubes adapted to the central axis beam 1, the vibrator fixture 3 and the director fixture 7 are hollow, that is, are provided with through holes 301, the shape of the inner space (that is, the shape of the through holes 301) is octagonal, and the size of the inner space is matched with the size of the central axis beam 1, both the vibrator fixture 3 and the director fixture 7 can be just sleeved outside the central axis beam 1, and the outer contour is octagonal. Specifically, when the diameter of the metal tube of the ring-shaped half-wave folded dipole 200 is 0.8c to 1.2cm, the thickness of the side walls of the dipole fixing member 3 and the director fixing member 7 is about 1 cm or about 1.2 times the diameter of the metal tube of the main dipole 2.
In a further embodiment, each pair of half-wave ring-shaped folded vibrators 200 is provided with a vibrator fixing member 3, and each pair of half-wave ring-shaped folded vibrators 200 is sleeved outside the vibrator fixing member 3 and connected with the vibrator fixing member 3; the vibrator fixing pieces 3 of each pair of annular half-wave folded vibrators 200 are sequentially arranged along the axial direction of the middle shaft beam 1, and the adjacent vibrator fixing pieces 3 are arranged in an abutting mode.
In order to fix the ring-shaped half-wave folded vibrator 200 at the vibrator fixing member 3, the ring-shaped half-wave folded vibrator 200 is provided with a fixing member 202, the vibrator fixing member 3 is provided with a screw hole 300, and the fixing member 202 is locked at the vibrator fixing member 3 by a bolt 203. When the ring-shaped half-wave folded dipole 200 has an elliptical shape, the fixing member 202 is disposed at one end of the short axis of the ring-shaped half-wave folded dipole 200.
In a further embodiment, eight metal columns 600 are divided into four pairs, each pair of metal columns 600 is equipped with a director fixing member 7, four director fixing members 7 are sequentially arranged at the middle shaft beam 1 in series, and the adjacent director fixing members 7 are arranged against each other.
Referring to fig. 7 and 8, in order to fix the eight metal columns 600 at the director fixture 7, the director fixture 7 is provided with nut 700 holes, each nut 700 hole is provided with a nut 700, the end of each metal column 600 is provided with a screw 601, the screw 601 is coaxially arranged with the metal column 600, the screw 601 can be rotated at the nut 700, and the arrangement is such that the metal column 600 is installed at the director fixture 7.
When the annular half-wave folded dipole 200 is in an oval shape, the metal column 600 is in a cylindrical shape, the diameter of the metal column 600 is 0.8cm-1.2cm, and the length of the metal column 600 is 0.3 times to 0.4 times of the short axis of the annular half-wave folded dipole 200.
In a further embodiment, an antenna fixing bracket 5 is arranged at the middle shaft cross beam 1, and the yagi antenna with the mesh reflector and the 5G MIMO function can be installed somewhere through the antenna fixing bracket 5.
The yagi antenna with the mesh reflector and the 5G MIMO function comprises a middle shaft beam 1, a main oscillator 2, an oscillator fixing piece 3, a reflector 4, a director 6, a director fixing piece 7 and a bundling feeder line; the main vibrator 2 comprises four pairs of half-wave folded circular vibrators 200, the reflector 4 comprises a metal net, and the director 6 comprises eight metal posts 600. The antenna has the capability of transmitting 5G high-frequency signals, can solve the problem that the existing yagi antenna does not support 5G high-frequency communication, has the performances of 4x4 MIMO (multiple input multiple output), high gain and narrow wave speed, applies a multi-antenna technology and a space division multiplexing technology, can solve the problem of coverage of 5G signals in linear coverage scenes such as tunnels of high-speed railways and highways and urban subways, can be widely used in scenes such as indoor coverage, elevator coverage and the like, can be used for signal measurement and interference elimination, and has wide popularization and application values.
It should be noted that, although the above embodiments have been described herein, the scope of the present invention is not limited thereby. Therefore, based on the innovative concept of the present invention, the changes and modifications of the embodiments described herein, or the equivalent structure or equivalent process changes made by the contents of the specification and the drawings of the present invention, directly or indirectly apply the above technical solutions to other related technical fields, all included in the scope of the present invention.
Claims (10)
1. A yagi antenna with a reticular reflector and a 5G MIMO function is characterized by comprising a middle shaft beam, a main oscillator, an oscillator fixing piece, a reflector, a director fixing piece and a bundling feeder line; the reflector, the main vibrator and the director are sequentially arranged along the axial direction of the middle shaft beam;
the main vibrator comprises four pairs of annular half-wave folded vibrators, and the vibrator fixing pieces are serially arranged at the middle shaft cross beam; each pair of annular half-wave folded vibrators is provided with a feed terminal, and the four pairs of annular half-wave folded vibrators are sequentially arranged along the axial direction of the middle shaft cross beam and are all sleeved outside the vibrator fixing piece; the annular half-wave folded vibrator is connected with the vibrator fixing piece, and the connection part of the annular half-wave folded vibrator and the vibrator fixing piece is opposite to the feed terminal;
one end of the bundling feeder line is connected with the four annular half-wave folded vibrators, and the other end of the bundling feeder line is connected with the signal generation main equipment;
the reflector comprises a metal net, and the metal net is arranged at the middle shaft cross beam in series;
the director comprises eight metal posts; the guide fixing piece is arranged at the middle shaft cross beam in series; one end of each of the eight metal columns is connected to the guide fixing part, and the eight metal columns are arranged in a staggered mode.
2. Yagi antenna with mesh reflector and 5G MIMO function according to claim 1, wherein the diameter of the mesh of the metal mesh is less than 0.1 wavelength.
3. The yagi antenna with mesh reflector and 5G MIMO function as claimed in claim 1, wherein the reflector is spaced from the main element by 0.5-1 wavelength.
4. The yagi antenna with the mesh reflector and the 5G MIMO function as claimed in claim 1, wherein the central axis beam is an octagonal prism, and the element holder and the director holder are both in an octagonal tube shape adapted to the central axis beam.
5. The yagi antenna with the mesh reflector and the 5G MIMO function as claimed in claim 1, wherein each pair of half-wave folded circular dipoles is provided with a dipole fixing member; the vibrator fixing pieces of each pair of annular half-wave folded vibrators are sequentially arranged along the axial direction of the middle shaft beam, and the adjacent vibrator fixing pieces are mutually abutted.
6. The yagi antenna with mesh reflector and 5G MIMO function as claimed in claim 1, wherein the half-wave folded dipole is bent in a ring shape from a metal tube having a diameter of 0.8c-1.2cm, and the feeding terminal is connected to a tip of the metal tube by a metal lead wire.
7. The yagi antenna with mesh reflector and 5G MIMO function as claimed in claim 1, wherein the half-wave folded dipole is in an elliptical ring shape, the feeding terminal is disposed at one end of the short axis of the half-wave folded dipole, and the connection point of the half-wave folded dipole and the dipole fixing member is the other end of the short axis of the half-wave folded dipole.
8. The yagi antenna with the mesh reflector and the 5G MIMO function as claimed in claim 1, wherein the directors are provided in 3 to 6 pairs, each pair of directors is provided with a director fixing member, and each pair of directors is provided at the middle shaft beam through the director fixing member and arranged in sequence along the axial direction of the middle shaft beam; each auxiliary director is positioned at one side of the main oscillator.
9. The yagi antenna with mesh reflector and 5G MIMO function as claimed in claim 8, wherein eight metal columns are divided into four pairs, each pair of metal columns is equipped with director fixing member, four director fixing members are serially arranged on the middle shaft beam in turn, and adjacent director fixing members are abutted against each other.
10. The yagi antenna with mesh reflector and 5G MIMO function as claimed in claim 9, wherein the adjacent directors are spaced apart by 0.5 wavelength-1 wavelength, and the directors adjacent to the main element are spaced apart by 0.5 wavelength-1 wavelength.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022680392.4U CN213905608U (en) | 2020-11-19 | 2020-11-19 | Take netted reflector and have yagi antenna of 5G MIMO function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022680392.4U CN213905608U (en) | 2020-11-19 | 2020-11-19 | Take netted reflector and have yagi antenna of 5G MIMO function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213905608U true CN213905608U (en) | 2021-08-06 |
Family
ID=77120657
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022680392.4U Active CN213905608U (en) | 2020-11-19 | 2020-11-19 | Take netted reflector and have yagi antenna of 5G MIMO function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213905608U (en) |
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2020
- 2020-11-19 CN CN202022680392.4U patent/CN213905608U/en active Active
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