CN219874052U - Multiple MIMO narrow wave beam and high gain base station antenna - Google Patents
Multiple MIMO narrow wave beam and high gain base station antenna Download PDFInfo
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- CN219874052U CN219874052U CN202222891136.9U CN202222891136U CN219874052U CN 219874052 U CN219874052 U CN 219874052U CN 202222891136 U CN202222891136 U CN 202222891136U CN 219874052 U CN219874052 U CN 219874052U
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- base station
- linear array
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- 230000010287 polarization Effects 0.000 claims abstract description 7
- 238000010586 diagram Methods 0.000 claims description 12
- 239000000463 material Substances 0.000 claims description 5
- 239000007787 solid Substances 0.000 claims description 3
- 239000007769 metal material Substances 0.000 claims description 2
- 230000001413 cellular effect Effects 0.000 abstract description 9
- 238000010295 mobile communication Methods 0.000 abstract description 9
- 230000009977 dual effect Effects 0.000 abstract 1
- 230000005855 radiation Effects 0.000 description 6
- 230000007547 defect Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 239000004593 Epoxy Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
Classifications
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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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/42—Housings not intimately mechanically associated with radiating elements, e.g. radome
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q15/00—Devices for reflection, refraction, diffraction or polarisation of waves radiated from an antenna, e.g. quasi-optical devices
- H01Q15/14—Reflecting surfaces; Equivalent structures
- H01Q15/16—Reflecting surfaces; Equivalent structures curved in two dimensions, e.g. paraboloidal
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
-
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
- H01Q5/20—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements characterised by the operating wavebands
- H01Q5/28—Arrangements for establishing polarisation or beam width over two or more different wavebands
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
- H01Q5/50—Feeding or matching arrangements for broad-band or multi-band operation
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- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Aerials With Secondary Devices (AREA)
- Variable-Direction Aerials And Aerial Arrays (AREA)
Abstract
The utility model discloses a multiple MIMO narrow beam and high gain base station antenna, which comprises more than one 2X 2MIMO antenna module, wherein each 2X 2MIMO antenna module is composed of a parabolic cylindrical reflecting surface and 1-16 unit linear array feeds, the parabolic cylindrical reflecting surface is formed by taking a parabola with a certain focal diameter ratio as a bus line along a vertical line motion track, the parabolic cylindrical reflecting surface is provided with a focal straight line, a plurality of dual polarization linear array feeds can be adapted, 4X 4 or 6X 6 or 8X 8 or more multiple MIMO narrow beam and high gain base station antennas are realized, the overall structure of the base station antenna is modular, and each 2X 2MIMO antenna module can be longitudinally combined or transversely combined. The utility model is suitable for special scenes of cellular mobile communication and WLAN systems, especially 5G networks.
Description
Technical Field
The utility model relates to the technical field of cellular mobile communication systems, in particular to a multiple MIMO narrow-beam high-gain base station antenna.
Background
Today, the wireless network coverage of cellular mobile communication and WLAN (Wireless Local Area Network) systems still needs to be continuously optimized and perfected: many of these special application scenario coverage, such as long and narrow area coverage, remote target remote coverage, and building penetration coverage, are increasingly being appreciated by network operators. The adoption of multiple (port number greater than 2) MIMO (Multiple Input Multiple Output) narrow beams and high gain base station antennas are one of the key measures for optimizing the special application scenario. At present, the base station antenna adopted in the prior art mainly has two structural forms, namely: multiple MIMO narrow beams, high gain passive array antennas, and multiple MIMO narrow beams, high gain luneberg lens antennas (cylindrical).
The structural characteristics of the multiple MIMO narrow beam, high gain passive array antenna in the prior art determine that more radiating elements and complex feed networks are required to achieve the narrow beam, high gain radiation characteristics, for example: when the horizontal wave width is about 15 degrees/the gain is about 20dBi, the number of the radiating units is about 20, so that the defects of complex structure, large feed loss, low mouth surface efficiency and the like exist; the structural characteristics of the prior art multiple MIMO narrow beam, high gain luneberg lens antenna (cylindrical) determine the large dielectric lens diameter required to achieve the narrow beam, high gain radiation characteristics, such as: when the horizontal wave width is about 15 degrees/the gain is about 20dBi, the diameter of the cylindrical dielectric lens is about 5 working wavelengths, so that the defects of complex process, large volume, high cost and the like exist.
In order to overcome and improve the defects in the prior art, besides improving the existing antenna structure, other antenna structures can be adopted to realize the same radiation characteristics as the existing antenna structure. It is noted that multiple MIMO narrow beam, high gain base station antennas with reflector antenna configurations have not been reported so far. The utility model aims to create a multi-MIMO narrow-beam high-gain base station antenna with higher comprehensive cost performance based on the characteristics of simple structure, low cost and being especially suitable for narrow-beam high-gain radiation characteristics of a reflecting surface antenna structure.
Disclosure of Invention
The utility model aims to overcome the defects in the prior art, provide a novel multi-MIMO narrow-beam high-gain base station antenna for cellular mobile communication and WLAN systems, and use a parabolic cylinder reflecting surface to adapt to a plurality of dual-polarized linear array feeds to realize a 4×4 or 6×6 or 8×8 or more multi-MIMO narrow-beam high-gain base station antenna.
In order to achieve the above purpose, the utility model adopts the following technical scheme: the multiple MIMO narrow beam high gain base station antenna comprises more than one 2X 2MIMO antenna module, each 2X 2MIMO antenna module is composed of a parabolic cylindrical reflecting surface and 1-16 unit linear array feed sources, the parabolic cylindrical reflecting surface is formed by taking a parabola with a certain focal diameter ratio as a bus line along a vertical line motion track, the multiple MIMO narrow beam high gain base station antenna has a focal straight line, and the phase centers of all units of the 1-16 unit linear array feed sources are arranged on the focal straight line.
Further, the focal diameter ratio of the parabolic cylinder reflecting surface ranges from 0.15 to 0.50, the caliber range of the parabolic cylinder reflecting surface ranges from 1.5 to 10.0 working wavelengths, and the parabolic cylinder reflecting surface is made of a solid plate-shaped or hollow plate-shaped or net-shaped high-conductivity metal material.
Further, the specification of the 2×2MIMO antenna module is determined by the number of units of the linear array feed source and the working frequency band, and includes: single feed 2×2MIMO antenna module, 2 unit linear array feed 2×2MIMO antenna module, 3 unit linear array feed 2×2MIMO antenna module, 4 unit linear array feed 2×2MIMO antenna module, and so on to 16 unit linear array feed 2×2MIMO antenna module.
Furthermore, the polarization mode of the 1-16 unit linear array feed source is + -45 DEG double-line polarization, the working frequency band of the linear array feed source can be single frequency band or multi-frequency band, and the linear array feed source with the unit number more than or equal to 3 is preset and electrically adjusted by the feed network according to the Xiang Quan value of each unit, so that the vertical plane directional diagram of the base station antenna and the electric adjustment of the downward inclination angle of the vertical plane wave beam are realized.
Furthermore, the multiple MIMO of the base station antenna is formed by combining more than one 2×2MIMO antenna modules with the same or different specifications, the overall structure of the multiple MIMO antenna is modular, and each 2×2MIMO antenna module can be longitudinally combined or transversely combined.
Further, the appearance of the base station antenna can be in a structural form with an integral antenna housing; the antenna cover and the feed source cover are made of low-consumption medium materials.
Compared with the prior art, the utility model has the beneficial effects that: the technical scheme of adapting a parabolic cylinder reflecting surface to a plurality of dual-polarized linear array feed sources is provided for the first time, which can be used in the field of cellular mobile communication, and a 4 multiplied by 4 or 6 multiplied by 6 or 8 multiplied by 8 or more MIMO narrow-beam high-gain base station antenna is realized. Compared with a multiple MIMO passive array antenna, on the premise of the same gain level, the number of the radiation units used in the technical scheme of the utility model is obviously reduced, the feed network is greatly simplified, the feed loss is obviously reduced, and the aperture efficiency of the antenna is further effectively improved; compared with a multiple MIMO Robert lens antenna (cylindrical), the utility model has the advantages of simpler structure and process and higher comprehensive cost performance on the premise of the same gain level.
Drawings
FIG. 1 is a perspective view of a principal model of the present utility model;
FIG. 2 is a front view of a principal model of the present utility model;
FIG. 3 is a left side view of the principal model of the present utility model;
FIG. 4 is a schematic top view of the principle model of the present utility model;
fig. 5 is a front view of a single feed 2×2MIMO antenna module of the present utility model;
fig. 6 is a front view of a 2×2MIMO antenna module of the present utility model with 2 element linear array feeds;
fig. 7 is a front view of a 3-element linear array feed 2×2MIMO antenna module of the present utility model;
fig. 8 is a front view of a 4-element linear array feed 2×2MIMO antenna module of the present utility model;
fig. 9 is a perspective view of a transversal combined 8×8MIMO antenna model according to the present utility model;
fig. 10 is a perspective view of a longitudinal combined 8×8MIMO antenna model according to the present utility model;
fig. 11 is an E-plane directional diagram of a single feed 2×2MIMO antenna module of the present utility model;
fig. 12 is an H-plane directional diagram of a single feed 2×2MIMO antenna module according to the present utility model;
fig. 13 is an E-plane directional diagram of a 2 x 2MIMO antenna module of the present utility model;
fig. 14 is an H-plane directional diagram of a 2 x 2MIMO antenna module of the present utility model;
fig. 15 is an E-plane directional diagram of a 3-element linear array feed 2×2MIMO antenna module according to the present utility model;
fig. 16 is an H-plane directional diagram of a 3-element linear array feed 2×2MIMO antenna module according to the present utility model;
fig. 17 is an E-plane directional diagram of a 4-element linear array feed 2×2MIMO antenna module of the present utility model;
fig. 18 is an H-plane directional diagram of a 4-element linear array feed 2×2MIMO antenna module of the present utility model;
fig. 19-a is a schematic view of a longitudinal combined 8 x 8MIMO antenna with integral radome construction in accordance with the present utility model;
fig. 19-b is a schematic diagram of the longitudinal combined 8×8MIMO antenna reflecting surface with the form of the linear array feed structure with the feed cover according to the present utility model.
Detailed Description
The utility model will be further described with reference to embodiments shown in the drawings. The embodiments are merely representative embodiments of the present utility model, wherein the specific methods, devices, conditions, materials, etc. illustrated are not intended to limit the present utility model or the corresponding embodiments. In this regard, the devices in the drawings are only for expressing their relative positions and are not drawn to actual scale, as described earlier.
As shown in fig. 1-4, a 4×4MIMO narrow beam, high gain base station antenna includes two 4 unit linear array feeds 2×2MIMO antenna modules, where a parabolic cylindrical reflecting surface 1 is formed by a track of a parabolic line M with a focal diameter ratio F/D moving in a vertical direction, where the length of the track is H, that is, the height of the reflecting surface 1, and similarly, the track of the focal point of the parabolic line M is a straight line F, that is, the focal line of the reflecting surface 1, and the two 4 unit linear array feeds 201 and 202 each irradiate a corresponding parabolic cylindrical reflecting surface, each form a 2×2MIMO beam with the same direction, and the phase center of each unit of the linear array feeds 201 and 202 is set on Jiao Zhixian F.
Furthermore, the focal diameter ratio f/D of the parabolic reflecting surface 1 depends on the irradiation angles of the 4-unit linear array feeds 201 and 202, the value range is 0.15-0.50, the aperture D of the parabolic reflecting surface 1 determines the bandwidth and gain characteristics of the base station antenna horizontal plane, the value range is 1.5-10.0 working wavelengths, and the material of the parabolic reflecting surface 1 is preferably solid or hollow aluminum alloy plate.
Furthermore, the specification of the 2×2MIMO antenna module is 5G cellular mobile communication system working frequency band (3300-3800 MHz)/4 unit linear array feed source module, and two 2×2MIMO antenna modules formed by the 4 unit linear array feed sources 201 and 202 and the parabolic cylinder reflecting surface 1 are combined longitudinally, so as to realize a 4×4MIMO narrow beam and high gain base station antenna.
Further, the polarization modes of the 4-unit linear array feed sources 201 and 202 are + -45 DEG double-line polarization, the 4-unit linear array feed sources work in the frequency band of 3300-3800 MHz of the 5G cellular mobile communication system, and the feed sources preset and electrically adjust the amplitude Xiang Quan value of each unit through a feed network, so that the vertical plane directional diagram of the base station antenna and the electric adjustment of the vertical plane beam downtilt angle are realized.
Further, as shown in fig. 5-8, front views of four typical 2×2MIMO antenna modules according to the technical solution of the present utility model are shown respectively, namely: a single feed source 2×2MIMO antenna module, a 2 unit linear array feed source 2×2MIMO antenna module, a 3 unit linear array feed source 2×2MIMO antenna module, a 4 unit linear array feed source 2×2MIMO antenna module, and fig. 11-18 are radiation patterns of a vertical plane (ee) and a horizontal plane (hh) corresponding to each module; the 2 x 2MIMO antenna modules can be combined according to the requirements of users, and the parabolic cylinder reflecting surfaces 1 of the combined multiple MIMO narrow beam and high gain base station antennas are of integrated structures of the reflecting surfaces of the 2 x 2MIMO antenna modules; as shown in fig. 9-10, the present utility model is a case model of the lateral combination and the longitudinal combination of 8×8MIMO narrow beam and high gain base station antennas.
Further, as shown in fig. 19-a, the appearance of the multiple MIMO narrow beam and high gain base station antenna may be a structure with an integral radome, which is suitable for the frequency band (1690-2690 MHz) and the 5G frequency band (3300-3800 MHz) in the cellular mobile communication system; as shown in fig. 19-b, the appearance of the multiple MIMO narrow beam and high gain base station antenna may also be a structural form of the reflecting surface and a linear array feed source with a feed source cover, which is suitable for a low frequency band (690-960 MHz) and a medium frequency band (1690-2690 MHz) of a cellular mobile communication system, and the materials of the antenna cover 301 and the feed source cover 302 are preferably low-consumption epoxy glass fiber composite materials.
The utility model provides a novel multiple MIMO narrow beam and high gain base station antenna with higher aperture efficiency, which firstly proposes a technical scheme of adapting a parabolic cylinder reflecting surface to a plurality of dual-polarized linear array feeds, and the linear array feeds can be arbitrarily combined with 1-16 units according to the requirements on the wave width and gain of the vertical plane of the base station antenna; if the dual-frequency dual-polarized linear array feed source is adopted, the dual-frequency multiple MIMO narrow beam and high-gain base station antenna can be realized; the technical scheme of the utility model integrates the advantages of the reflecting surface antenna and the array antenna, and has higher comprehensive cost performance compared with the prior art.
The foregoing description of the embodiments is provided to facilitate understanding of the principles of the utility model, and is not intended to limit the scope of the utility model, i.e., the utility model is not limited to the specific features disclosed herein, but is to be accorded the full scope of the utility model as defined by the appended claims and their equivalents.
Claims (6)
1. A multiple MIMO narrow beam, high gain base station antenna, characterized by: the antenna comprises more than one 2X 2MIMO antenna module, each 2X 2MIMO antenna module is composed of a parabolic cylindrical reflecting surface and 1-16 unit linear array feed sources, the parabolic cylindrical reflecting surface is formed by taking a parabola with a certain focal diameter ratio as a bus and along a vertical line motion track, the parabolic cylindrical reflecting surface is provided with a focal straight line, and the phase centers of all units of the 1-16 unit linear array feed sources are all arranged on the focal straight line.
2. A multiple MIMO narrow beam, high gain base station antenna according to claim 1, wherein: the focal diameter ratio of the parabolic cylinder reflecting surface ranges from 0.15 to 0.50, the caliber range of the parabolic cylinder reflecting surface ranges from 1.5 to 10.0 working wavelengths, and the parabolic cylinder reflecting surface is made of solid plate-shaped or hollow plate-shaped or net-shaped high-conductivity metal materials.
3. A multiple MIMO narrow beam, high gain base station antenna according to claim 1, wherein: the specification of the 2×2MIMO antenna module is determined by the number of units of the linear array feed source and the operating frequency band, and includes: single feed 2×2MIMO antenna module, 2 unit linear array feed 2×2MIMO antenna module, 3 unit linear array feed 2×2MIMO antenna module, 4 unit linear array feed 2×2MIMO antenna module, and so on to 16 unit linear array feed 2×2MIMO antenna module.
4. A multiple MIMO narrow beam, high gain base station antenna according to claim 3, characterized by: the polarization mode of the 1-16 unit linear array feed source is + -45 DEG double-line polarization, the working frequency band of the linear array feed source can be single frequency band or multi-frequency band, and the linear array feed source with the unit number more than or equal to 3 is preset and electrically adjusted by the feed network according to the Xiang Quan value of each unit, so that the vertical plane directional diagram of the base station antenna and the electric adjustment of the vertical plane beam downtilt angle are realized.
5. A multiple MIMO narrow beam, high gain base station antenna according to claim 1 or 3, characterized in that: the multiple MIMO of the base station antenna is formed by combining more than one 2X 2MIMO antenna modules with the same or different specifications, the overall structure of the multiple MIMO antenna module is modular, and each 2X 2MIMO antenna module can be longitudinally combined or transversely combined.
6. A multiple MIMO narrow beam, high gain base station antenna according to claim 1, wherein: the appearance of the base station antenna can be in a structural form with an integral antenna housing; the antenna cover and the feed source cover are made of low-consumption medium materials.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222891136.9U CN219874052U (en) | 2022-10-31 | 2022-10-31 | Multiple MIMO narrow wave beam and high gain base station antenna |
| PCT/CN2023/113264 WO2024093438A1 (en) | 2022-10-31 | 2023-08-16 | Multi-mimo narrow-beam high-gain base station antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222891136.9U CN219874052U (en) | 2022-10-31 | 2022-10-31 | Multiple MIMO narrow wave beam and high gain base station antenna |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219874052U true CN219874052U (en) | 2023-10-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222891136.9U Active CN219874052U (en) | 2022-10-31 | 2022-10-31 | Multiple MIMO narrow wave beam and high gain base station antenna |
Country Status (2)
| Country | Link |
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| CN (1) | CN219874052U (en) |
| WO (1) | WO2024093438A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN119340662A (en) * | 2024-10-12 | 2025-01-21 | 中国船舶集团有限公司第七二三研究所 | A planar timber antenna array |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018088669A1 (en) * | 2016-11-09 | 2018-05-17 | Samsung Electronics Co., Ltd. | Antenna device including parabolic-hyperbolic reflector |
| CN110571531B (en) * | 2019-09-27 | 2021-07-30 | 中国电子科技集团公司第三十八研究所 | A multi-beam phased array antenna based on parabolic reflector |
| CN214336931U (en) * | 2021-02-22 | 2021-10-01 | 深圳市前海派速科技有限公司 | Dielectric lens and lens antenna |
| CN115693173A (en) * | 2022-10-31 | 2023-02-03 | 胡关平 | Multiple MIMO narrow-beam and high-gain base station antenna |
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2022
- 2022-10-31 CN CN202222891136.9U patent/CN219874052U/en active Active
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2023
- 2023-08-16 WO PCT/CN2023/113264 patent/WO2024093438A1/en not_active Ceased
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| Publication number | Publication date |
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| WO2024093438A1 (en) | 2024-05-10 |
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