CN110416704B - Antenna radiating unit and broadband antenna - Google Patents
Antenna radiating unit and broadband antenna Download PDFInfo
- Publication number
- CN110416704B CN110416704B CN201810386148.1A CN201810386148A CN110416704B CN 110416704 B CN110416704 B CN 110416704B CN 201810386148 A CN201810386148 A CN 201810386148A CN 110416704 B CN110416704 B CN 110416704B
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- antenna
- radiating element
- arm
- radiating unit
- fluting
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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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q19/00—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic
- H01Q19/10—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using reflecting surfaces
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
- H01Q21/24—Combinations of antenna units polarised in different directions for transmitting or receiving circularly and elliptically polarised waves or waves linearly polarised in any direction
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
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Abstract
The invention discloses an antenna radiating unit and a broadband antenna, wherein the antenna radiating unit comprises at least two pairs of radiating unit bodies and coupling pieces, wherein the radiating unit bodies and the coupling pieces enclose a barrel shape or an approximate barrel shape, the two radiating unit bodies in each pair of radiating unit bodies are oppositely arranged, the two adjacent radiating unit bodies are coupled and connected through the coupling pieces, a coupling gap is formed between the two radiating unit bodies through the coupling pieces, and each radiating unit body comprises a first oscillator arm and a second oscillator arm which are integrated. The invention can effectively shorten the size of the antenna and widen the working frequency band of the antenna, and can be used for the antenna compatible with 4G and 5G communication frequency bands.
Description
Technical Field
The present invention relates to the field of antennas, and more particularly, to a miniaturized and broadband antenna and a miniaturized and broadband antenna.
Background
The radiating element means an element constituting the basic structure of an antenna, which can radiate or receive radio waves efficiently. The dual polarized radiating element facilitates polarization multiplexing or transceiver isomorphism. The structure of the dual polarized radiating element directly affects the arrangement of the radiating element array.
However, conventional antenna radiating elements generally suffer from the following drawbacks: 1. the size of the conventional normal orthogonal 90-degree crossed array is larger, the occupied space is larger, the miniaturization of the base station antenna is not facilitated, and the cost is higher; 2. the working frequency band is narrower, and the working frequency band is usually 698-960 MHz; 3. the radiation unit is heavy in weight and cannot meet the requirement of the existing communication market on light weight; 4. the compatible antenna frequency band is limited, so that the application range of the radiating unit is not flexible enough.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide a miniaturized broadband antenna radiating unit and a broadband antenna.
In order to achieve the above purpose, the present invention proposes the following technical scheme: the utility model provides an antenna radiating element, includes enclosing two at least pairs of orthogonal polarization radiating element bodies and a plurality of coupling piece of tubulose or approximately tubulose, two radiating element bodies in every pair of radiating element bodies set up relatively, pass through between two adjacent radiating element bodies the coupling connection, and pass through be formed with the coupling gap between the coupling piece two, every radiating element body includes a fluting and is located fluting top integrated into one piece's first oscillator arm and second oscillator arm.
Preferably, the first vibrator arm and the second vibrator arm are located on the same plane.
Preferably, the antenna radiating element further comprises a slot hole arranged on the radiating element body, and the slot hole is located between the first oscillator arm and the second oscillator arm.
Preferably, the first vibrator arm is formed by bending the upper end of the second vibrator arm outwards.
Preferably, the slot is formed by the bottom of the radiating element body being recessed upward.
Preferably, the antenna radiating unit further comprises a pair of bases arranged at the bottom of the antenna radiating unit at intervals, and the bottoms of the radiating unit bodies are connected through the bases.
Preferably, the bottom of each radiating element body is provided with at least two connecting parts arranged at intervals, and the connecting parts of the radiating element bodies are respectively connected with the bases close to the connecting parts.
Preferably, the antenna radiating element further comprises a limiting piece arranged between two adjacent radiating element bodies.
Preferably, the coupling member is further provided with a coaxial cable connection point for connection with a coaxial cable.
Preferably, the length of the first vibrator arm is greater than the length of the second vibrator arm.
Preferably, the antenna radiating element is rotationally symmetrical along its central axis.
Preferably, the radiating element body is axisymmetric along its longitudinal axis.
Preferably, the radiating unit body and the coupling member are a sheet metal radiating unit body and a sheet metal coupling member, respectively.
The invention also provides another technical scheme: a broadband antenna comprises a reflecting plate and the antenna radiating unit arranged on the reflecting plate.
Preferably, the broadband antenna further comprises a miniaturized antenna unit with any frequency band, wherein the miniaturized antenna unit is embedded in the antenna radiation unit or is independently arranged on the reflecting plate, and the miniaturized antenna unit and the antenna radiation unit are coaxially arranged on the reflecting plate.
Preferably, the miniaturized antenna unit adopts a vibrator unit with an operating frequency band of 3300-3700 MHz, or adopts an LTE frequency band antenna with an operating frequency band of 1695-2690 MHz.
The beneficial effects of the invention are as follows:
1. the radiating unit bodies are all arranged into an integrated structure, so that the size of the antenna can be effectively shortened, the working frequency band of the antenna can be widened, and in addition, the strength of the antenna can be effectively enhanced through the integrated structure.
2. The adoption of the sheet metal structure is easy to produce and can reduce the overall weight of the antenna.
3. The antenna radiation unit can be embedded with a miniaturized antenna with any frequency band to be made into a compact coaxial antenna, and is particularly suitable for being used as an antenna compatible with 4G and 5G communication frequency bands, for example, a 3.5GHz vibrator can be embedded into a 5G communication antenna, a 3.5GHz vibrator can not be embedded into the antenna, and the antenna can be made into a simple 4G communication antenna, so that the flexibility of the application range of the antenna is greatly improved.
4. The structure of trompil and groove on the radiating element body is favorable to nimble standing wave and the pattern of adjusting the oscillator, and when the antenna radiating element embeds other oscillators, can reduce the shielding of oscillator arm to other oscillator pattern radiation.
Drawings
Fig. 1 and fig. 2 are schematic perspective views of different views of an antenna radiation unit according to an embodiment of the present invention;
FIG. 3 is a schematic structural view of an alternative embodiment 1 of the present invention;
FIG. 4 is a schematic structural view of an alternative embodiment 2 of the present invention;
FIG. 5 is a schematic structural view of an alternative embodiment 3 of the present invention;
fig. 6 is a schematic diagram of a broadband antenna according to the present invention.
Reference numerals:
1. the antenna comprises a radiation unit body, 11, a first oscillator arm, 12, a second oscillator arm, 13, a connecting part, 2, a coupling piece, 3, a base, 31, a fixing hole, 4, a reflecting plate, 5, a coupling gap, 6, a coaxial cable connecting point, 7, a limiting piece, 8, a gap hole, 9, a slot, 91, an upper slot, 92, a lower slot and 10, and a miniaturized antenna unit.
Detailed Description
The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.
The antenna radiating unit and the broadband antenna disclosed by the invention have the advantages that the oscillator arm of the radiating unit adopts an integrated structure, so that the antenna is miniaturized and the working frequency band of the antenna is widened. In addition, the radiation unit can be compatible with other radiation units with any frequency range to form a broadband antenna, so that the flexibility of the application range of the antenna is greatly improved.
Specifically, referring to fig. 1 and fig. 2, the disclosed antenna radiating unit is a 2G antenna radiating unit, and includes four radiating unit bodies 1, a coupling member 2 and a base 3, where the four radiating unit bodies 1 enclose a barrel-shaped or barrel-shaped structure through the coupling member 2, and the base 3 is disposed at the bottom of the radiating unit body 1 and is used for being fixedly connected with an antenna reflecting plate 4 to fix the radiating unit to the reflecting plate 4.
Specifically, the four radiating element bodies 1 form two pairs of radiating element bodies of orthogonal polarization, and the two radiating element bodies in each pair of radiating element bodies 1 are oppositely arranged, that is, the four radiating element bodies 1 in the two pairs of radiating element bodies are alternately arranged.
The two adjacent radiating element bodies 1 are coupled and connected through a coupling piece 2, and a coupling gap 5 is formed between the two adjacent radiating element bodies 1 through the coupling piece 2, namely, the coupling piece 2 can be coupled and connected with the radiating element bodies 1 to increase the strength of the radiating element, and can also control the accuracy of the coupling gap 5 between the adjacent radiating element bodies 1, and in addition, the standing wave ratio of the vibrator can be further adjusted by controlling the accuracy of the coupling gap 5. In this embodiment, the coupling member 2 is a coupling metal sheet.
Preferably, the coupling element 2 is further provided with a coaxial cable connection point 6 for connection with a coaxial cable (shown in the figure) through which the radiating element body 1 is fed. In this embodiment, the coaxial cable is soldered to the coaxial cable connection point 6.
Furthermore, a limiting piece 7 is further arranged between two adjacent radiating element bodies 1, and the limiting piece has the same function as the coupling piece 2, so that on one hand, the strength of the radiating element can be increased, on the other hand, the accuracy of a coupling gap 5 between the adjacent radiating element bodies 1 can be controlled, and in addition, the standing wave ratio of the vibrator can be adjusted by controlling the accuracy of the coupling gap 5. In this embodiment, the limiting member 7 is a plastic limiting member.
Each radiating element body 1 has the same structure and is in a plate-like structure, and as shown in fig. 1 and 2, the radiating element body includes a first dipole arm 11 and a second dipole arm 12 that are integrally formed, so that the antenna radiating element according to the embodiment of the present invention includes 8 common dipole arms 11 and 12, where the first dipole arm 11 and the second dipole arm 12 are common dipole arms.
In this embodiment, the first vibrator arm 11 and the second vibrator arm 12 are located on the same plane, and the first vibrator arm 11 and the second vibrator arm 12 are distributed up and down, where the first vibrator arm 11 is used to control the low frequency resonance frequency in the vibrator working frequency band, and the second vibrator arm 12 is used to control the high frequency resonance frequency in the vibrator working frequency band. The integral structure of the first dipole arm 11 and the second dipole arm 12 can effectively shorten the size of the antenna and widen the working frequency range of the antenna, so that the formed antenna has the characteristic of broadband, and in addition, the strength of the antenna can be effectively enhanced due to the integral structure.
Preferably, the length of the first vibrator arm 11 is longer than that of the second vibrator arm 12, so that each radiating element body 1 has a trapezoid structure with a wider upper part and a narrower lower part, and four such radiating element bodies 1 enclose a barrel structure with a large upper opening and a small lower opening.
Preferably, a slit hole 8 is arranged between the first vibrator arm 11 and the second vibrator arm 12, and the length, width, shape, number and the like of the slit hole 8 can be set according to practical requirements, and the configurable parameters of the slit hole 8 are beneficial to flexibly adjusting standing waves and patterns of vibrators. In the embodiment shown in fig. 1 and 2, the slit holes 8 are elongated rectangular holes, the number of which is set to 1, i.e. the entire radiation unit comprises 4 slit holes 8; in alternative embodiments, the number of slit holes 8 in the embodiment shown in fig. 3 may be 3 for each radiating element body 1, or 2 for each radiating element body 1, wherein the number of slit holes 8 in fig. 4 is larger than the number of slit holes 8 in fig. 3.
Furthermore, each radiating element body 1 is further provided with a slot 9, in this embodiment, the slot 9 is disposed on the first vibrator arm 11, and is formed by upwardly recessing the middle of the bottom of the first vibrator arm 11, and the shape and size of the slot 9 can also be set according to actual requirements. In this embodiment, as shown in fig. 2, the slot 9 includes an upper slot 91 and a lower slot 92 which are integrally and vertically distributed, wherein the shape of the lower slot 92 is approximately rectangular, the shape of the upper slot 91 is approximately dovetail-shaped, and the width of the lower end of the upper slot 91 is smaller than the width of the upper end of the lower slot 92.
In an alternative embodiment, the upper end of the upper slot 91 may be a tooth structure with at least one tooth, as shown in fig. 3, the upper end of the upper slot 91 is in a tooth structure forming two teeth, and three triangular slit holes 8 are cooperatively arranged, wherein two slit holes 8 at the outermost ends are respectively arranged near the outermost tooth edges at the corresponding ends, and the middle slit hole 8 is arranged between the two middle tooth edges. As shown in fig. 4, the upper end of the upper slot 91 is in a tooth structure for forming a tooth, two triangular slot holes 8 are cooperatively arranged, and the two slot holes 8 are respectively arranged near two edges of the tooth.
The structural design of the slit hole 8 and the slot 9 on the radiating unit body 1 can also play a role in reducing shielding of the vibrator arm to radiation of the pattern of the embedded vibrator unit.
Preferably, each radiating element body 1 is axisymmetric along its longitudinal axis, i.e. the first dipole arm 11, the second dipole arm 12, the slit aperture 8, the slot 9 structures on the radiating element body 1 are axisymmetric. And the antenna radiating element formed by the four radiating element bodies 1 is rotationally symmetrical along the central axis thereof.
In this embodiment, as shown in fig. 2, a pair of bases 3 are further disposed at intervals at the bottom of the antenna radiating unit, that is, two bases 3 are disposed, a plane in which each base 3 is located is perpendicular or approximately perpendicular to a plane in which the radiating unit body 1 is located, the base 3 is in a rectangular plate shape as a whole, two right-angle sides (i.e., side edges and end edges) of one end in a width direction of the base are respectively connected to bottoms of two radiating unit bodies 1 adjacent to corresponding ends, two right-angle sides of the other end are also respectively connected to bottoms of two radiating unit bodies 1 adjacent to corresponding ends, specifically, two ends of the bottom of each radiating unit body respectively form a connecting portion 13, and side edges and end edges of each end of the base are respectively connected to connecting portions 13 of two adjacent radiating unit bodies. In this embodiment, the base 3 and the radiation unit body 1 are integrally formed, and a fixing hole 31 through which a fixing member (not shown) passes is formed in the base 3, so that the fixing member such as a screw (not shown) can pass through to fixedly connect the base 3 and the reflecting plate 4.
The two bases 3 are spaced, so that the whole antenna radiating unit is hollow, and oscillator units of other frequency bands can be embedded into the whole antenna radiating unit to form a broadband antenna.
In addition, the structure of the radiating element body 1 can have other alternative structures, so that the formed antenna radiating element has various deformation structures, different antenna radiating elements have different patterns and bandwidth characteristics, and different antenna radiating elements can be adopted according to different requirements. Specifically, as shown in fig. 5, the first vibrator arm 11 and the second vibrator arm 12 of the radiating unit body 1 are not on the same plane, the first vibrator arm 11 is formed by bending the upper end of the second vibrator arm 12 outwards, and in this embodiment, the whole of the bent first vibrator arm 11 is also in an arch shape that arches upwards. The second vibrator arm 12 is of a trapezoid structure with a wide upper part and a narrow lower part, and the slot 9 is formed on the second vibrator arm, in this alternative embodiment, the slot hole 8 is not formed on the radiating unit body 1, and other structures are the same as those in the above embodiment, and will not be repeated here.
Preferably, except that the limiting piece 7 is a plastic limiting piece, other structures of the antenna radiating unit are all of sheet metal structures, so that the antenna is easy to produce and the overall weight of the antenna can be reduced.
As shown in fig. 6, the broadband antenna disclosed by the invention comprises a reflecting plate 4 and at least one antenna radiating unit mounted on the reflecting plate 4. In view of the hollow structure of the antenna radiating element, the antenna radiating element may be compatible with the miniaturized antenna element 10 of other frequency bands, that is, a wideband antenna disclosed in the embodiments of the present invention may further include the miniaturized antenna element 10, where the miniaturized antenna element 10 is embedded in the antenna radiating element as shown in the figure, or separately disposed on the reflecting plate 4, and these miniaturized antenna elements 10 and the antenna radiating elements are coaxially arranged on the reflecting plate 4.
Specifically, the antenna radiation unit of the embodiment of the invention can be embedded with a 3.5GHz oscillator to be made into an antenna compatible with 4G and 5G communication frequency bands, and the specific working frequency band of the 3.5GHz oscillator can be 3300-3700 MHz; the antenna can be made into a simple 4G communication antenna without embedding a 3.5GHz vibrator, or an LTE frequency band antenna with the same frequency band, namely 1695-2690MHz, is embedded into the antenna to be made into a compact 4G communication frequency band antenna; even a vibrator of a size similar to the size of a 3.5GHz vibrator or any small size can be embedded as long as the size can be embedded inside the antenna radiating element of the present invention. That is to say, the coaxial structure of the 2G unit and the 3.5G unit adopted by the embodiment of the invention is suitable for the base station antenna compatible with 4G communication and 5G communication, and improves the flexibility of the application range of the vibrator.
While the foregoing has been disclosed in the specification and drawings, it will be apparent to those skilled in the art that various substitutions and modifications may be made without departing from the spirit of the invention, and it is intended that the scope of the invention be limited not by the specific embodiments disclosed, but by the appended claims.
Claims (10)
1. The utility model provides an antenna radiating element, its characterized in that includes enclosing into the radiating element body of barrel or approximately barrel two pairs of orthogonal polarization and a plurality of coupling piece that is used for increasing radiating element intensity and adjusts the coupling gap precision, two radiating element bodies in every pair of radiating element body set up relatively, pass through coupling connection between two adjacent radiating element bodies the coupling piece, and through be formed with the coupling gap between the coupling piece two, every radiating element body includes a fluting and is located fluting top integrated into one piece's first oscillator arm and second oscillator arm, the fluting includes fluting and lower fluting, the width of last fluting lower extreme is less than the width of lower fluting upper end, the coupling piece is equipped with the coaxial cable tie point that is used for connecting coaxial cable, feeds radiating element body through coaxial cable.
2. An antenna radiating element according to claim 1, wherein said first dipole arm and said second dipole arm lie in the same plane.
3. An antenna radiating element according to claim 2, further comprising a slot aperture provided in the radiating element body, said slot aperture being located between the first dipole arm and the second dipole arm.
4. An antenna radiating element according to claim 1 wherein said first dipole arm is formed by an upper end of said second dipole arm which is bent outwardly.
5. The antenna radiating element of claim 1, further comprising a pair of bases spaced apart from the bottom of the antenna radiating element, the bottom of the radiating element body being connected by the bases.
6. An antenna radiating element according to claim 5 wherein the bottom of each radiating element body is provided with at least two spaced apart connecting portions, the connecting portions of the radiating element bodies being connected to their respective nearer bases.
7. An antenna radiating element according to claim 2 wherein the length of said first dipole arm is greater than the length of said second dipole arm.
8. An antenna radiating element according to claim 1, characterized in that said antenna radiating element is rotationally symmetrical along its central axis.
9. A broadband antenna comprising a reflecting plate and at least one antenna radiating element according to any one of claims 1 to 8 mounted on said reflecting plate.
10. The broadband antenna of claim 9, further comprising a miniaturized antenna unit of any frequency band, wherein the miniaturized antenna unit is embedded in the antenna radiation unit or is separately disposed on the reflecting plate, and the miniaturized antenna unit and the antenna radiation unit are coaxially arranged on the reflecting plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810386148.1A CN110416704B (en) | 2018-04-26 | 2018-04-26 | Antenna radiating unit and broadband antenna |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810386148.1A CN110416704B (en) | 2018-04-26 | 2018-04-26 | Antenna radiating unit and broadband antenna |
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| CN110416704A CN110416704A (en) | 2019-11-05 |
| CN110416704B true CN110416704B (en) | 2023-07-25 |
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| CN201810386148.1A Active CN110416704B (en) | 2018-04-26 | 2018-04-26 | Antenna radiating unit and broadband antenna |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110867648B (en) * | 2019-11-29 | 2024-05-28 | 京信通信技术(广州)有限公司 | Antenna and radiating element thereof |
| CN112397883B (en) * | 2020-10-19 | 2023-04-28 | 广东盛路通信科技股份有限公司 | High-low frequency combined radiating element and antenna assembly |
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| CN110416704A (en) | 2019-11-05 |
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