CN220189875U - Small-sized 5G antenna - Google Patents
Small-sized 5G antenna Download PDFInfo
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- CN220189875U CN220189875U CN202321253608.6U CN202321253608U CN220189875U CN 220189875 U CN220189875 U CN 220189875U CN 202321253608 U CN202321253608 U CN 202321253608U CN 220189875 U CN220189875 U CN 220189875U
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- 230000005540 biological transmission Effects 0.000 description 7
- 238000004891 communication Methods 0.000 description 5
- 238000010295 mobile communication Methods 0.000 description 5
- 238000011161 development Methods 0.000 description 3
- 238000002955 isolation Methods 0.000 description 3
- 230000002349 favourable effect Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
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- 229910052802 copper Inorganic materials 0.000 description 1
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Abstract
The utility model discloses a small-sized 5G antenna, which comprises: the dual-polarized radiation device comprises a reflecting plate, a plurality of dual-polarized radiation units, a first feed network, a director component and a dielectric plate, wherein the plurality of dual-polarized radiation units are arranged above the front side of the reflecting plate in an array mode, the first feed network is used for connecting the plurality of dual-polarized radiation units, the director component is arranged above each dual-polarized radiation unit, the dielectric plate is arranged on the back side of the reflecting plate and provided with a second feed network, the first feed network and the second feed network are connected through a feed interface to form an integral feed network, and the director component comprises a plurality of round metal sheets which are arranged at intervals and coaxially with the dual-polarized radiation units through support columns. Compared with the prior art, the 5G antenna is laid out in a limited space, so that the 5G antenna has the advantages of small size, simple structure and the like while meeting the requirement of high gain, and meets the application requirement of miniaturization of products.
Description
Technical Field
The utility model relates to the technical field of antennas in electronic communication, in particular to a small 5G antenna.
Background
In recent years, with the rapid development of wireless communication technology, mobile communication networks are continuously updated, network coverage is more and more perfect, and network signal transmission quality is also improved. A mobile communication base station is an interface device for accessing mobile equipment to the internet, and is also a form of a radio station, and refers to a radio transceiver station that performs information transfer with a mobile phone terminal through a mobile communication switching center in a certain radio coverage area. In a cellular mobile communication system, a base station antenna is a converter for circuit signals and space radiation electromagnetic waves, and is a key component of the mobile communication system. With the advent of the 5G era, the communication system is continuously upgraded, the capacity requirement is greatly improved, and in order to ensure the communication quality and the communication distance, the power requirement on the base station antenna is higher and the quantity requirement is also higher and higher. As the number of base station antennas increases, the required installation area is larger, so that the existing base station antennas supporting the 5G network on the market tend to have larger volume, higher cost and occupy more space resources.
Therefore, there is a need for a dual polarized directional antenna with high gain and small size that meets the product miniaturization development requirements.
Disclosure of Invention
The embodiment of the utility model provides a small 5G antenna, which realizes the layout of the 5G antenna in a limited space, has the advantages of small size, simple structure and the like while meeting the requirement of high gain, and meets the application requirement of miniaturization of products.
In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows:
a miniature 5G antenna comprising: the dual-polarized radiation device comprises a reflecting plate, a plurality of dual-polarized radiation units, a first feed network, a director component and a dielectric plate, wherein the plurality of dual-polarized radiation units are arranged above the front side of the reflecting plate in an array mode, the first feed network is used for connecting the plurality of dual-polarized radiation units, the director component is arranged above each dual-polarized radiation unit, the dielectric plate is arranged on the back side of the reflecting plate and provided with a second feed network, the first feed network and the second feed network are connected through a feed interface to form an integral feed network, and the director component comprises a plurality of round metal sheets which are arranged at intervals and coaxially with the dual-polarized radiation units through support columns.
Preferably, the director assembly comprises a first director and a second director and a third director, the first director being larger in size than the second director and the third director.
Preferably, the first director is disposed close to the dual polarized radiating element, and a distance from the second director to the first director is equal to a distance from the third director to the second director, and the distance is 0.2λ -0.3λ.
Preferably, the second director and the third director have the same size, and the second director and the third director have a size of 0.45 lambda.
Preferably, a plurality of the dual polarized radiation units are arranged in a 2 x 4 array and have the same phase, and the interval between two adjacent dual polarized radiation units is 0.85 lambda.
Preferably, the dual polarized radiating element is octagonal in shape and has a size of 0.5λ.
Preferably, the feeding interface comprises a first feeding interface and a second feeding interface, and the first feeding interface is connected with the second feeding interface through a conductive rod.
The utility model has the beneficial effects that: the directors with different sizes and different distances are added right above the single dual-polarized radiating element to form a small subarray radiating element, so that the gain of the single radiating element is greatly increased under the condition that the plane area is unchanged, and the plane size is smaller and the gain is higher after the single dual-polarized radiating element is formed into a large array; meanwhile, the feed network reduces the length dimension of the transmission line by combining serial and parallel feed, thereby reducing the loss caused by current in transmission and further increasing the antenna gain. Therefore, the 5G antenna is laid out in a limited space, so that the 5G antenna has the advantages of small size, simple structure and the like while meeting the requirement of high gain, and meets the application requirement of miniaturization of products.
Drawings
FIG. 1 is one of the perspective views of an embodiment of the present utility model;
FIG. 2 is a second perspective view of an embodiment of the present utility model;
FIG. 3 is a front view of an embodiment of the present utility model;
FIG. 4 is a left side view of an embodiment of the present utility model;
FIG. 5 is a top view of an embodiment of the present utility model;
FIG. 6 is a bottom view of an embodiment of the present utility model;
FIG. 7 is a standing wave ratio graph of one embodiment of the present utility model;
FIG. 8 is a graph of isolation curves according to one embodiment of the present utility model;
fig. 9 is a gain profile of one embodiment of the present utility model.
Reference numerals in the drawings of the specification include:
the antenna comprises a small-sized 5G antenna-100, a reflecting plate-2, a dual-polarized radiating element-3, a first feed network-4, a director component-5, a first director-51, a second director-52, a third director-53, a second feed network-6, a dielectric plate-7, a feed interface-8, a first feed interface-81, a second feed interface-82, a conductive rod-83 and a support column-9.
Detailed Description
The embodiment of the utility model solves the technical problems of large size, high cost and more occupied space resources of the antenna in the prior art by providing the small 5G antenna.
In order that the above objects, features and advantages of the utility model will be readily understood, a more particular description of the utility model will be rendered by reference to the appended drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model. The utility model may be embodied in many other forms than described herein and similarly modified by those skilled in the art without departing from the spirit or scope of the utility model, which is therefore not limited to the specific embodiments disclosed below.
The embodiment of the utility model provides a small 5G antenna to solve the technical problem that the size of a base station is overlarge due to the large installation area along with the increase of the number of the base station antennas in the prior art. In the present utility model, the position of the reflecting plate with respect to the radiation unit is lower, lower side, bottom or back, the opposite direction is up, above, upper, top, roof or front. The term "about" in the present utility model is meant to include fluctuations within a reasonable range above and below the specific value.
As shown in fig. 1 to 6, an embodiment of the present utility model is:
a miniature 5G antenna 100 comprising: the dual-polarized radiation unit comprises a reflecting plate 2, a plurality of dual-polarized radiation units 3, a first feed network 4, a director component 5 and a dielectric plate 7, wherein the plurality of dual-polarized radiation units 3 are arranged above the front face of the reflecting plate 2 in an array mode, the first feed network 4 is used for connecting the plurality of dual-polarized radiation units 3, the director component 5 is arranged above each dual-polarized radiation unit 3, the dielectric plate 7 is arranged on the back face of the reflecting plate 2 and is provided with a second feed network 6, the first feed network 81 and the second feed network 82 are connected through a feed interface 8 to form an integral feed network, and the director component 5 comprises a plurality of circular metal sheets which are arranged at intervals and coaxially with the dual-polarized radiation units 3 through support columns 9.
On the one hand, a small subarray radiation unit is formed by arranging a director component on the array-arranged dual-polarized radiation units, and the director component consists of a plurality of circular metal sheets with different sizes and different distances, so that the gain of a single radiation unit is greatly increased under the condition that the plane area is unchanged, and the plane size is smaller and the gain is higher after the array is formed into a large array. On the other hand, the medium feed network and the radiating unit are positioned on different planes, the structure is compact, the arrangement clearance is small, in-phase equal-amplitude feed can be carried out, the small 5G antenna has the advantages of high gain, stable direction, small size and the like, and the development requirement of miniaturization of products is met.
Preferably, the director assembly 5 comprises a first director 51 and a second director 52 and a third director 53, the first director 51 being larger in size than the second director 52 and the third director 53.
Preferably, the first directors 51 are disposed close to the dual polarized radiating element 3, the distance from the second directors 52 to the first directors 51 is equal to the distance from the third directors 53 to the second directors 52, the distance is 0.2λ -0.3λ, the three directors are formed into a circular metal sheet, which is favorable for improving the directivity of the dual polarized directional antenna, and the dual polarized directional antenna has low processing cost, high consistency and low loss, has no directional trouble during assembly, is favorable for improving the production efficiency and reducing the production cost, and meanwhile, the distance between the adjacent directors is equal, so that the signals can be superimposed and enhanced, thereby achieving the effect of improving the radiation gain.
Preferably, the second director 52 and the third director 53 have the same size, and the second director 52 and the third director 53 have a size of 0.45 lambda.
Preferably, the plurality of dual-polarized radiating elements 3 are arranged in a 2 x 4 array and have the same phase, and the space between two adjacent dual-polarized radiating elements 3 is 0.85 lambda, so that the gain superposition of the dual-polarized directional antenna is effectively ensured, and the side lobe size of the antenna is effectively restrained.
Preferably, the dual polarized radiating element 3 has an octagonal shape with a size of 0.5λ.
Preferably, the power supply interface 8 includes a first power supply interface 81 and a second power supply interface 82, and the first power supply interface 81 and the second power supply interface 82 are connected through a conductive rod 83. The second feed network 6 and the dual-polarized radiating element 3 are positioned on different planes, so that the coupling effect between microstrip transmission lines can be reduced, and the directivity of the antenna radiation direction is facilitated; the microstrip transmission line can be connected, loss is effectively reduced, the problem that the overall size of the antenna is large due to the fact that the microstrip transmission line is arranged in a wiring mode is avoided, and the size of the 5G antenna is reduced.
In one embodiment of the present utility model, the overall size of the small-sized 5G antenna 240mm x 170mm x 53mm, the 5G antenna employs 8 metal dual polarized radiating elements of regular octagon with a size of about 0.5λ, which are supported and fixed above the reflecting plate by plastic posts with a height of 5mm, two adjacent dual polarized radiating elements are supported above each dual polarized radiating element by plastic posts with a height of 2.5mm by a distance of 0.85λ, two second and third circular metal pieces with the same size and a diameter of less than 0.45λ are fixed above the first circular metal piece by plastic posts with a height of 18.5mm, and the space between the second circular metal piece and the first circular metal piece is equal to the space between the third circular metal piece and the second circular metal piece, which is about 0.25λ. The 4 metal conduction band feed networks with the same shape and size are used for connecting the 8 dual-polarized radiation units, and the 2 dielectric feed networks with the same shape and size are arranged on the back surface of the reflecting plate and are connected through solid copper bars to form the feed network of the whole antenna. As shown in fig. 7 to 9, the isolation VSWR of the 5G antenna is less than 1.7 in the frequency band range of 3.4GHz-3.7GHz, the isolation is more than 20dB in the frequency band range of 3.4GHz-3.7GHz, and the radiation gain of the antenna is more than 17.5dBi.
According to the 5G antenna, a plurality of directors with different sizes and different distances are added right above a single radiating element to form a small subarray radiating element, so that the gain of the single radiating element is greatly increased under the condition that the plane area is unchanged, the plane size of the large array is smaller, and the gain is higher; meanwhile, the feed network reduces the length dimension of the transmission line by combining serial and parallel feed, thereby reducing the loss caused by current in transmission and further increasing the antenna gain. The embodiment realizes the layout of the 5G antenna in a limited space, so that the 5G antenna has the advantages of small size, simple structure and the like while meeting the requirement of high gain, and meets the application requirement of miniaturization of products.
The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.
The foregoing examples merely illustrate embodiments of the utility model and are described in more detail and are not to be construed as limiting the scope of the utility model. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model. Accordingly, the scope of protection of the present utility model is to be determined by the appended claims.
Claims (7)
1. A miniature 5G antenna, comprising: the dual-polarized radiation device comprises a reflecting plate, a plurality of dual-polarized radiation units, a first feed network, a director component and a dielectric plate, wherein the plurality of dual-polarized radiation units are arranged above the front side of the reflecting plate in an array mode, the first feed network is used for connecting the plurality of dual-polarized radiation units, the director component is arranged above each dual-polarized radiation unit, the dielectric plate is arranged on the back side of the reflecting plate and provided with a second feed network, the first feed network and the second feed network are connected through a feed interface to form an integral feed network, and the director component comprises a plurality of round metal sheets which are arranged at intervals and coaxially with the dual-polarized radiation units through support columns.
2. The miniature 5G antenna of claim 1, wherein the director assembly comprises a first director and a second director and a third director, the first director being larger in size than the second director and the third director.
3. The miniature 5G antenna of claim 2, wherein the first director is disposed proximate to the dual polarized radiating element, and wherein a spacing of the second director from the first director is equal to a spacing of the third director from the second director, the spacing being between 0.2λ and 0.3λ.
4. A compact 5G antenna according to claim 3, wherein the second director and the third director are the same size, the second director and the third director being 0.45 λ in size.
5. The miniature 5G antenna of claim 1, wherein a plurality of said dual polarized radiating elements are arranged in a 2 x 4 array and are identical in phase, and a spacing between adjacent two dual polarized radiating elements is 0.85 λ.
6. The miniature 5G antenna of claim 5, wherein said dual polarized radiating element is octagonal in shape with a dimension of 0.5 λ.
7. A miniature 5G antenna according to any of claims 1-6, wherein the feed interface comprises a first feed interface and a second feed interface, the first feed interface and the second feed interface being connected by a conductive rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321253608.6U CN220189875U (en) | 2023-05-23 | 2023-05-23 | Small-sized 5G antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321253608.6U CN220189875U (en) | 2023-05-23 | 2023-05-23 | Small-sized 5G antenna |
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| Publication Number | Publication Date |
|---|---|
| CN220189875U true CN220189875U (en) | 2023-12-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321253608.6U Active CN220189875U (en) | 2023-05-23 | 2023-05-23 | Small-sized 5G antenna |
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| CN (1) | CN220189875U (en) |
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2023
- 2023-05-23 CN CN202321253608.6U patent/CN220189875U/en active Active
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