CN111541010A - 5G low-profile dual-polarized radiation unit and base station antenna - Google Patents
5G low-profile dual-polarized radiation unit and base station antenna Download PDFInfo
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- CN111541010A CN111541010A CN202010494753.8A CN202010494753A CN111541010A CN 111541010 A CN111541010 A CN 111541010A CN 202010494753 A CN202010494753 A CN 202010494753A CN 111541010 A CN111541010 A CN 111541010A
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/12—Supports; Mounting means
- H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
- H01Q1/24—Supports; Mounting means by structural association with other equipment or articles with receiving set
- H01Q1/241—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM
- H01Q1/246—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for base stations
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/50—Structural association of antennas with earthing switches, lead-in devices or lightning protectors
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Waveguide Aerials (AREA)
- Variable-Direction Aerials And Aerial Arrays (AREA)
Abstract
The invention relates to a 5G low-profile dual-polarized radiation unit and a base station antenna, wherein the 5G low-profile dual-polarized radiation unit comprises a radiation body and a balun arranged at the bottom end of the radiation body, the radiation body comprises two orthogonally polarized oscillators, each oscillator comprises two radiation arms which are symmetrical about the center of the radiation body, the four radiation arms of the two oscillators are positioned on the same plane and are mutually connected, each radiation arm is provided with a hollow hole, the hollow holes of the two radiation arms of each oscillator are symmetrical about the center of the radiation body, the balun comprises four supporting pieces, each supporting piece corresponds to one radiation arm, and the top end of each supporting piece is connected to the inner wall of one end, close to the center of the radiation body, of the hollow hole of the corresponding radiation arm. The invention has simple structure, easy manufacture, reduced volume and weight, and reduced cost.
Description
[ technical field ] A method for producing a semiconductor device
The invention relates to the field of mobile communication, in particular to a 5G low-profile dual-polarized radiation unit and a base station antenna.
[ background of the invention ]
In a mobile communication system, a base station antenna is an important component in the whole system, and the technology and application of the base station antenna are continuously evolved along with the development of the system, so that higher requirements are put forward on the performance of the base station antenna.
With the arrival of the 5G era, the traditional mobile communication antenna has large volume and weight, so that various aspects such as construction, property site selection, environmental protection and the like are greatly limited, and the miniaturization and low profile of the antenna are not only necessary trends of network development, but also one of the most effective ways for solving related problems of base station engineering construction and installation at present.
In a traditional base station antenna, a radiating unit of the traditional base station antenna generally adopts a metal die-casting oscillator, the metal die-casting oscillator is complex in structure, not easy to manufacture, large in size, heavy in weight and high in cost, and the requirements of simplification, miniaturization, light weight and low cost of the base station antenna cannot be met.
[ summary of the invention ]
The invention aims to overcome the defects of the technology and provide a 5G low-profile dual-polarized radiation unit and a base station antenna, which have the advantages of simple structure, easiness in manufacturing, small volume, light weight and low cost.
The invention provides a 5G low-profile dual-polarized radiation unit, which comprises a radiation body and a balun arranged at the bottom end of the radiation body, wherein the radiation body comprises two orthogonally polarized oscillators, each oscillator comprises two radiation arms which are symmetrical about the center of the radiation body, the four radiation arms of the two oscillators are positioned on the same plane and are mutually connected, each radiation arm is provided with a hollow hole, the hollow holes of the two radiation arms of each oscillator are symmetrical about the center of the radiation body, the balun comprises four supporting pieces, each supporting piece corresponds to one radiation arm, and the top end of each supporting piece is connected to the inner wall of one end, close to the center of the radiation body, of the hollow hole of the corresponding radiation arm.
Furthermore, a notch is formed between every two adjacent radiation arms, and the cross section of the notch is in a cross shape, a square shape, a rectangular shape, a triangular shape, a horn shape or a quincunx shape.
Furthermore, the outer side of each radiation arm is bent downwards to form a bent part, and an included angle between the bent part and the bottom end face of the radiation body is greater than or equal to 20 degrees and less than or equal to 85 degrees; the bending part is provided with a through hole, and the through hole extends to the corresponding radiation arm and is communicated with one end, far away from the center of the radiator, of the hollow hole of the corresponding radiation arm.
Further, the height of the support is greater than or equal to 0.0625 center frequency wavelengths and less than or equal to 0.125 center frequency wavelengths.
Further, the cross-sectional shape of the radiator is square, rectangular, circular or elliptical.
Further, the radiator and the balun are integrally formed.
The invention provides a base station antenna, which comprises a reflecting plate, a feed element arranged on the front surface of the reflecting plate and a radiation array arranged on the front surface of the feed element, wherein the radiation array comprises a plurality of 5G low-profile dual-polarized radiation units arranged at intervals along the longitudinal direction of the feed element, each 5G low-profile dual-polarized radiation unit comprises a radiation body and a balun arranged at the bottom end of the radiation body, each radiation body comprises two orthogonally polarized oscillators, each oscillator comprises two radiation arms which are symmetrical about the center of the radiation body, the four radiation arms of the two oscillators are positioned on the same plane and are mutually connected, each radiation arm is provided with a hollowed hole, the hollowed holes of the two radiation arms of each oscillator are symmetrical about the center of the radiation body, the balun comprises four supporting pieces, and each supporting piece corresponds to one radiation arm, the top end of each supporting piece is connected to the inner wall of one end, close to the center of the radiating body, of the hollow hole of the corresponding radiating arm, and the bottom end of each supporting piece is arranged on the front face of the feed piece and connected with a feed circuit of the feed piece.
Furthermore, a plug-in part is formed at the bottom end of each supporting part, a jack corresponding to the plug-in part is arranged on the front face of each feeding part, and the plug-in parts are plugged into the corresponding jacks and welded to the corresponding jacks.
Furthermore, two sides of the reflecting plate are respectively bent upwards to form two folding edges.
Further, the height of the support is greater than or equal to 0.0625 center frequency wavelengths and less than or equal to 0.125 center frequency wavelengths.
The 5G low-profile dual-polarized radiation unit simplifies the structure, is easy to manufacture, reduces the volume and the weight, and reduces the cost.
[ description of the drawings ]
Fig. 1 is a schematic structural diagram of a base station antenna according to an embodiment of the present invention;
fig. 2 is a schematic top view of a 5G low-profile dual-polarized radiating element of the base station antenna of fig. 1;
fig. 3 is a schematic structural diagram of the bottom end of the 5G low-profile dual-polarized radiating element of the base station antenna shown in fig. 1;
fig. 4 is a schematic top view of a 5G low-profile dual-polarized radiating element of an alternative to the base station antenna of fig. 1;
fig. 5 is a schematic diagram of a structure of a top end of a 5G low-profile dual-polarized radiation unit of an alternative of the base station antenna shown in fig. 1.
[ detailed description ] embodiments
The invention is further described below with reference to the figures and examples.
Referring to fig. 1, the present invention provides a base station antenna including a reflector 10, a feeding member 20 disposed on a front surface of the reflector 10, and a radiating array disposed on a front surface of the feeding member 20. The radiating array comprises a plurality of 5G low-profile dual-polarized radiating elements 30 spaced apart longitudinally along the feed member 20. The reflecting plate 10 is a metal reflecting plate, the feeding member 20 is a dielectric substrate with a certain thickness and a dielectric constant, a feeding circuit (not shown in the figure) is disposed on the front surface of the feeding member 20, and the feeding circuit is used for feeding the plurality of 5G low-profile dual-polarized radiating elements 30, and preferably, the feeding circuit jointly feeds the plurality of 5G low-profile dual-polarized radiating elements 30 by using a power distribution network. In this embodiment, the number of the 5G low-profile dual-polarized radiation elements 30 is three, and it can be understood that the number of the 5G low-profile dual-polarized radiation elements 30 can also be, for example, one, two, four, and the like, and the number of the 5G low-profile dual-polarized radiation elements 30 can be set according to the actual situation.
Two sides of the reflection plate 10 are respectively bent upwards to form two folded edges 11, and the folded edges 11 are perpendicular to the reflection plate 10. The provision of the folded edge 11 may be used to improve the radiation characteristics of the radiation array.
Referring to fig. 1 to 3, the 5G low-profile dual-polarized radiation unit 30 includes a radiator and a balun disposed at a bottom end of the radiator. The radiator is used for transmitting or receiving communication signals. The balun plays a role in supporting and feeding the radiator.
The radiator comprises two vibrators with orthogonal polarization, and the two polarizations are respectively positive 45-degree polarization and negative 45-degree polarization. Each element comprises two radiating arms 31 which are symmetrical with respect to the centre of the radiator. The four radiating arms 31 of the two oscillators are located on the same plane and the four radiating arms 31 are connected with each other. The four radiation arms 31 are arranged in an X-shape. Each radiating arm 31 has a hollowed-out hole 311, the hollowed-out holes 311 facilitate the forming of the support 41 in a stamped manner, the hollowed-out holes 311 of the two radiating arms 31 of each oscillator being symmetrical with respect to the center of the radiator. The balun includes four supporting members 41, each supporting member 41 corresponds to one radiation arm 31, and the top end of each supporting member 41 is connected to the inner wall of one end of the hollow hole 311 of the corresponding radiation arm 31, which is close to the center of the radiator. The bottom end of each support 41 is disposed on the front surface of the feeding member 20 and connected to the feeding circuit of the feeding member 20, thereby feeding the corresponding radiation arm 31. Preferably, the bottom end of each supporting member 41 is connected to the feeding circuit of the feeding member 20 by soldering. The support 41 is arranged perpendicular to the corresponding radiation arm 31. Through the structure, compared with a metal die-cast oscillator of a traditional base station antenna, the 5G low-profile dual-polarized radiating unit 30 has the characteristics of simple structure, small volume, light weight, easiness in manufacturing, low cost and the like, and has good electrical performance and radiation performance such as high cross polarization discrimination rate, excellent front-to-back ratio performance and the like, so that the base station antenna also meets the requirements of simple structure, miniaturization, light weight and low cost, meets the requirements of good electrical performance and radiation performance, and can be applied to future Massive MIMO (large-scale antenna technology) antennas.
The radiator and the balun of the embodiment are integrally formed, for example, a sheet metal part is formed in a sheet metal stamping mode, so that the manufacturing is facilitated, and the cost is further reduced. The four supports 41 of the balun are respectively bent with respect to the radiating arm 31 of the corresponding radiator.
Preferably, a socket 411 (see fig. 3) is formed at the bottom end of each supporting member 41, a jack corresponding to the socket 411 is provided on the front surface of the feeding member 20 (the feeding member 20 is a PCB plate having a certain thickness and dielectric constant), and the socket 411 is inserted into and welded to the corresponding jack, so that the 5G low-profile dual-polarized radiation unit 30 is welded and arranged on the front surface of the feeding member 20, and the assembly is simple.
The four supporting pieces 41 realize feeding of the corresponding radiating arms 31 in a differential feeding mode, that is, the phases of the two supporting pieces 41 corresponding to the two radiating arms 31 of each oscillator are respectively 0 degree and 180 degrees, so that the 5G low-profile dual-polarized radiating unit 30 of the invention does not need to be provided with a structure for balancing current, the impedance characteristic of the 5G low-profile dual-polarized radiating unit 30 can be improved, the structure is further simplified, and the requirements of base station antennas are met.
The height of the support 41 is equal to or greater than 0.0625 center frequency wavelengths and equal to or less than 0.125 center frequency wavelengths. The height of the support 41 is determined by the size of the radiator surface. Preferably, the height of the supporting member is 0.125 central frequency wavelengths, which can reduce the height of the 5G low-profile dual-polarized radiating element 30, thereby realizing the reduction of the overall height of the base station antenna and further reducing the volume and weight. The center frequency wavelength is calculated as follows: taking the 3.5G band as an example, assuming the band range is 3.4 GHz-3.6 GHz, the center frequency wavelength is (3.4+ 3.6)/2.
A notch 312 is formed between two adjacent radiation arms 31, and the notch 312 has a certain improvement on the isolation between the antenna ports. The outer side of each radiation arm 31 (i.e. the side of the radiation arm 31 away from the center of the radiator) is bent downward to form a bent portion 32, and an included angle between the bent portion 32 and the bottom end surface of the radiator is greater than or equal to 20 degrees and less than or equal to 85 degrees, which has a certain influence on antenna matching. The bent portion 32 can improve the electromagnetic characteristics of the corresponding radiation arm 31. The bending portion 32 has a through hole 321, the through hole 321 has a certain effect on antenna pattern matching, and the through hole 321 extends to the corresponding radiation arm 31 and is communicated with one end of the hollow hole 311 of the corresponding radiation arm 31, which is far away from the center of the radiator.
As shown in fig. 2 and 3, the bent portion 32 includes a first rectangular portion 32a, a second rectangular portion 32c, and a chamfered portion 32b connected between the first rectangular portion 32a and the second rectangular portion 32 c. In an alternative, as shown in fig. 4 and 5, the chamfered portion 32b may be replaced with a rounded portion 32d, and the specific structure of the bent portion 32 may be set according to actual conditions.
In this embodiment, the cross-sectional shape of the radiator is square, and the two oscillators are located on two diagonal lines of the radiator, respectively. It is understood that the cross-sectional shape of the radiator may also be, for example, rectangular, circular, oval, etc., and may be set according to the actual situation.
The cross-sectional shape of the hollow hole 311 is rectangular, and it can be understood that the cross-sectional shape of the hollow hole 311 can also be, for example, square or horn, and the like, and can be set according to actual situations. The cross-sectional shape of the through hole 321 is a trumpet shape, and may be, for example, a fan shape, or the like, and the shape of the through hole is set according to the actual situation.
The cross-sectional shape of the notch 312 is square, and it is understood that the cross-sectional shape of the notch 312 may also be cross-shaped, square, rectangular, triangular, horn-shaped, quincunx, etc., and may be set according to actual conditions.
The above examples merely represent preferred embodiments of the present invention, which are described in more detail and detail, but are not to be construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications, such as combinations of different features in various embodiments, may be made without departing from the spirit of the invention, and these are within the scope of the invention.
Claims (10)
1. The utility model provides a 5G low-profile dual polarization radiating element, includes the irradiator and sets up in the balun of irradiator bottom, its characterized in that: the irradiator includes the oscillator that two polarization quadrature set up, every oscillator include two about the centrosymmetric radiation arm of irradiator, four radiation arms of two oscillators are located the coplanar and interconnect between four radiation arms, and every radiation arm has a fretwork hole, and the fretwork hole of two radiation arms of every oscillator is about the centrosymmetric of irradiator, the balun includes four support pieces, and every support piece corresponds a radiation arm, and the top of every support piece is connected to the one end inner wall that is close to the irradiator center of the fretwork hole of the radiation arm that corresponds.
2. A 5G low-profile dual polarized radiating element according to claim 1, wherein: a notch is formed between every two adjacent radiation arms, and the cross section of the notch is in a cross shape, a square shape, a rectangular shape, a triangular shape, a horn shape or a quincunx shape.
3. A 5G low-profile dual polarized radiating element according to claim 2, wherein: the outer side of each radiation arm is bent downwards to form a bent part, and the included angle between the bent part and the bottom end face of the radiation body is more than or equal to 20 degrees and less than or equal to 85 degrees; the bending part is provided with a through hole, and the through hole extends to the corresponding radiation arm and is communicated with one end, far away from the center of the radiator, of the hollow hole of the corresponding radiation arm.
4. A 5G low-profile dual polarized radiating element according to claim 1, wherein: the height of the support is greater than or equal to 0.0625 center frequency wavelengths and less than or equal to 0.125 center frequency wavelengths.
5. A 5G low-profile dual polarized radiating element according to claim 1, wherein: the section of the radiator is square, rectangular, circular or oval.
6. A 5G low-profile dual polarized radiating element according to claim 1, wherein: the radiator and the balun are integrally formed.
7. The utility model provides a base station antenna, includes the reflecting plate, sets up the positive feed of reflecting plate and setting are in the positive radiation array of feed, radiation array includes that a plurality of is followed the low section dual polarized radiation unit of 5G that the longitudinal separation of feed set up, the low section dual polarized radiation unit of 5G includes the irradiator and sets up and be in the balun of irradiator bottom, its characterized in that: the irradiator includes the oscillator that two polarization quadrature set up, every oscillator include two about the centrosymmetric radiation arm of irradiator, four radiation arms of two oscillators are located the coplanar and interconnect between four radiation arms, and every radiation arm has the fretwork hole, and the fretwork hole of two radiation arms of every oscillator is about the centrosymmetric of irradiator, the balun includes four support pieces, and every support piece corresponds a radiation arm, and the top of every support piece is connected to the one end inner wall that is close to the irradiator center of the fretwork hole of the radiation arm that corresponds, and the bottom of every support piece sets up the front of feed spare and is connected with the feed circuit of feed spare.
8. The base station antenna of claim 7, wherein: the bottom end of each supporting piece is provided with a plug-in part, the front face of each feeding piece is provided with a jack corresponding to the plug-in part, and the plug-in part is plugged into the corresponding jack and welded to the corresponding jack.
9. The base station antenna of claim 7, wherein: two sides of the reflecting plate are respectively bent upwards to form two folded edges.
10. The base station antenna of claim 7, wherein: the height of the support is greater than or equal to 0.0625 center frequency wavelengths and less than or equal to 0.125 center frequency wavelengths.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010494753.8A CN111541010A (en) | 2020-06-03 | 2020-06-03 | 5G low-profile dual-polarized radiation unit and base station antenna |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010494753.8A CN111541010A (en) | 2020-06-03 | 2020-06-03 | 5G low-profile dual-polarized radiation unit and base station antenna |
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| CN111541010A true CN111541010A (en) | 2020-08-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010494753.8A Pending CN111541010A (en) | 2020-06-03 | 2020-06-03 | 5G low-profile dual-polarized radiation unit and base station antenna |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112886229A (en) * | 2021-03-18 | 2021-06-01 | 京信通信技术(广州)有限公司 | Radiation unit, antenna subarray and antenna array |
| CN113517550A (en) * | 2021-07-02 | 2021-10-19 | 深圳市深大唯同科技有限公司 | 5G dual-polarized antenna radiation unit and base station antenna |
| CN117293561A (en) * | 2023-09-07 | 2023-12-26 | 人天通信集团有限公司 | Dual polarized antenna radiating element and base station antenna |
-
2020
- 2020-06-03 CN CN202010494753.8A patent/CN111541010A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112886229A (en) * | 2021-03-18 | 2021-06-01 | 京信通信技术(广州)有限公司 | Radiation unit, antenna subarray and antenna array |
| CN113517550A (en) * | 2021-07-02 | 2021-10-19 | 深圳市深大唯同科技有限公司 | 5G dual-polarized antenna radiation unit and base station antenna |
| CN113517550B (en) * | 2021-07-02 | 2024-02-06 | 中天宽带技术有限公司 | 5G dual polarized antenna radiating element and base station antenna |
| CN117293561A (en) * | 2023-09-07 | 2023-12-26 | 人天通信集团有限公司 | Dual polarized antenna radiating element and base station antenna |
| CN117293561B (en) * | 2023-09-07 | 2024-05-24 | 人天通信集团有限公司 | Dual polarized antenna radiating element and base station antenna |
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