CN113540755B - 5G dual-polarized base station antenna with high isolation characteristic and wide-angle scanning characteristic - Google Patents
5G dual-polarized base station antenna with high isolation characteristic and wide-angle scanning characteristic Download PDFInfo
- Publication number
- CN113540755B CN113540755B CN202110702050.4A CN202110702050A CN113540755B CN 113540755 B CN113540755 B CN 113540755B CN 202110702050 A CN202110702050 A CN 202110702050A CN 113540755 B CN113540755 B CN 113540755B
- Authority
- CN
- China
- Prior art keywords
- antenna
- crown
- base station
- radiation patch
- loading
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- 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
-
- 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
- H01Q1/38—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith formed by a conductive layer on an insulating support
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/52—Means for reducing coupling between antennas; Means for reducing coupling between an antenna and another structure
- H01Q1/521—Means for reducing coupling between antennas; Means for reducing coupling between an antenna and another structure reducing the coupling between adjacent antennas
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
- H01Q21/0006—Particular feeding systems
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
- H01Q21/06—Arrays of individually energised antenna units similarly polarised and spaced apart
- H01Q21/061—Two dimensional planar arrays
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
- H01Q21/06—Arrays of individually energised antenna units similarly polarised and spaced apart
- H01Q21/061—Two dimensional planar arrays
- H01Q21/065—Patch antenna array
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Waveguide Aerials (AREA)
- Variable-Direction Aerials And Aerial Arrays (AREA)
Abstract
The invention belongs to the technical field of base station antennas, and discloses a 5G dual-polarized base station antenna with high isolation characteristic and wide-angle scanning characteristic. The 5G dual-polarized base station antenna designed by the invention can realize the high isolation characteristic of more than 20dB among units without introducing an additional decoupling structure, and meanwhile, the problem of directional diagram distortion does not occur in the wide-angle beam scanning process. The antenna unit is formed by that a-45-loading crown-shaped microstrip element antenna and a + 45-loading crown-shaped microstrip element antenna are mutually and crossly arranged on a metal floor at an angle of 90 degrees, wherein the crown-shaped structure, the grounding radiation patch, the parasitic structure, the feeder line and the like are respectively printed on two sides of the dielectric slab, and the processing and the assembly are convenient; the invention has the advantages of simple and compact structure, high isolation between units, wide-angle scanning, easy assembly, suitability for batch production and low manufacturing cost.
Description
Technical Field
The invention belongs to the technical field of base station antennas, and particularly relates to a 5G dual-polarized base station antenna with high isolation characteristic and wide-angle scanning characteristic.
Background
At present, a 5G base station system is an important link of a 5G communication technology, and a base station antenna is used as an information access, and the performance of the base station antenna directly affects the working condition of the whole communication system. In the MIMO technology, the larger the number of antennas is, the higher the channel capacity and energy efficiency of the entire system are theoretically. However, the space occupied by the base station antenna is limited, and when the number of antennas is increased, the distance between the antenna units is reduced, so that the mutual coupling between the antenna units is serious, the port isolation, the total efficiency and the radiation pattern are all deteriorated, and the normal operation of the antenna is seriously influenced.
At present, the base station antenna generally adopts a dual-polarized antenna form, and the wide-angle beam scanning characteristic provides a wider coverage range for the base station antenna, and the wide-angle beam scanning characteristic gradually becomes one of the key performances of the base station antenna. In order to avoid the problems of main beam gain reduction, side lobe level increase and the like of the base station antenna in the wide-angle beam scanning process, measures of widening half-power lobe width of an antenna unit and reducing unit spacing are generally adopted. At the moment, the distance between the antenna units is smaller than 0.5 lambda, the antenna array is very compact, and meanwhile, the antenna units adopt a dual-polarized antenna form, so that the coupling problem among the units of the array is more complicated, and the coupling problem among the units with the same polarization, the cross polarization units and the units at intervals needs to be considered.
There are several decoupling methods, such as: band-stop filtering method, path-canceling method, diversity technique, etc. In 2010, hossein Sarbendi Farahani et al introduced an electromagnetic bandgap structure (UC-EBG) above two microstrip Antennas, and utilized the stopband characteristic of the electromagnetic bandgap structure to reduce the Mutual Coupling between the Antenna units and improve the isolation between the Antenna units [ Farahani H S, veysi M, kamyab M, et al, mutual Coupling Reduction in Patch Antenna Using a UC-EBG Superstrate [ J ]. IEEE Antennas & Wireless production Letters, 2010, 9. In 2015, jae-Yeong Lee et al introduced a structure of one-dimensional electromagnetic band gap and open resonant ring between two adjacent monopole antennas to decouple. The one-dimensional electromagnetic band gap and the open resonant ring respectively play the role of a reflector and a filter, and the two jointly play the role of solving the Coupling problem between Antenna units [ Lee J Y, kim S H, jang J H. Reduction of Multiple Coupling in Planar Multiple Antenna by Using 1-D EBG and SRR Structures [ J ]. IEEE Transactions on Antennas and amplification, 2015, 63 (9): 4194-4198 ]. In 2017, the Ke-Li Wu professor of the university of chinese in hong kong and its group propose to improve the isolation between antenna elements by introducing A Decoupling Surface (ADS) above the Array antenna, so that the introduced coupling wave and the coupling wave between the antenna elements cancel each other out [29] Wu K L, wei C, mei X, et al. In 2018, the voltage Wang introduces a super-Surface structure between two microstrip antennas, so that a region with positive equivalent dielectric constant and negative equivalent permeability is constructed between the antennas and the super-Surface, the wave number in the region can become a pure imaginary number, the electromagnetic wave is prevented from propagating along the horizontal direction, the energy Coupling to adjacent Antenna units is reduced, and the isolation between the units is improved [ Wang Z, ZHao L, cai Y, et al. A Method-Surface Antenna Decoupling (MAAD) Method for multiple tubular Coupling Reduction in a MIMO Antenna Coupling System [ J ]. Scientific Reports, 2018, 8 (1): 3152 ].
The above document solves the problem of mutual coupling between antenna elements by various methods, but has several problems: 1) The decoupling methods of the above documents all introduce decoupling structures between the antenna elements, such as: EBG structures, super-surface structures, ADS structures, etc., which increase the complexity of the antenna and the weight of the antenna, and for compact arrays with small cell pitches, there is not enough space between the antenna elements to place other decoupling structures. 2) In addition to the last document, other documents discuss the decoupling problem between two antenna elements, and whether the decoupling method is still applicable to a base station antenna composed of multiple elements is yet to be further verified. 3) The last document, mainly using an ADS structure to achieve decoupling between antenna elements, generally distorts the antenna pattern for wide angle beam scanning.
Through the above analysis, the problems and defects of the prior art are as follows:
(1) The introduction of decoupling structures between antenna elements in the prior art increases the complexity of the antenna and the weight of the antenna, and for compact arrays with small element spacings there is insufficient space between the antenna elements to accommodate other decoupling structures.
(2) In the prior art, for a base station antenna formed by a plurality of units, whether the decoupling method is still applicable or not is to be further verified.
(3) In the prior art, decoupling between antenna units is realized through an ADS structure, and for a wide-angle beam scanning situation, the ADS structure generally causes an antenna pattern to be distorted.
The difficulty in solving the above problems and defects is: the existing decoupling methods introduce decoupling structures between antenna elements, which increases the complexity of the antenna and the weight of the antenna, and for compact arrays with small element spacing, there is not enough space between the antenna elements for placing other decoupling structures. In the prior art, the decoupling problem between two antenna units is discussed, and for a base station antenna formed by a plurality of units, whether the decoupling method is still applicable or not needs to be further verified. If the ADS structure is used to realize the decoupling between the antenna units, the ADS structure will generally distort the antenna pattern for wide-angle beam scanning.
The significance of solving the problems and the defects is as follows: the invention designs the 5G dual-polarized base station antenna loaded by the crown structure, and the high isolation characteristic of more than 20dB among units can be realized without introducing any other decoupling structure. Meanwhile, the problem of pattern distortion does not occur in the wide-angle beam scanning process. The antenna of the invention has simple structure, the array scale can be expanded as required, and other decoupling structures are not required to be introduced, so that the base station antenna has the advantages of simple structure, easy assembly, debugging and batch production and lower manufacturing cost.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides a 5G dual-polarized base station antenna with high isolation characteristic and wide-angle scanning characteristic. The 5G dual-polarized base station antenna can realize the high isolation characteristic of more than 20dB without introducing any decoupling structure, has the wide-angle beam scanning characteristic, and can expand the array scale as required. Meanwhile, the invention can meet the development trend of the antenna technology of the large-scale MIMO base station under the limited condition.
The 5G base station antenna with the high isolation characteristic and the wide-angle scanning characteristic is formed by a plurality of antenna units and a metal floor, and the antenna units are arranged on the metal floor according to a certain rule in a plane.
Further, the specific arrangement mode is as follows:
0.45 lambda in the scan plane Center frequency Arranged in a non-scanning plane at 0.5 to 0.9 lambda Center frequency Arranged and installed on the metal floor; the array scale is arranged according to needs, and the number of the antenna units is increased or decreased.
Furthermore, the antenna unit is composed of a-45-loading crown-shaped microstrip oscillator antenna, a + 45-loading crown-shaped microstrip oscillator antenna and a metal floor.
Further, the-45-loading crown-type microstrip element antenna and the + 45-loading crown-type microstrip element antenna are arranged on the metal floor, and the size of the antenna unit is 23.5mm multiplied by 39.5mm.
Further, the-45-loading crown-type microstrip oscillator antenna and the + 45-loading crown-type microstrip oscillator antenna are arranged in a 90-degree crossed manner, the-45-loading crown-type microstrip oscillator antenna is arranged above the-45-loading crown-type microstrip oscillator antenna, and the + 45-loading crown-type microstrip oscillator antenna is arranged below the-45-loading crown-type microstrip oscillator antenna.
Further, the-45-loaded crown-type microstrip oscillator antenna and the + 45-loaded crown-type microstrip oscillator antenna are respectively composed of a dielectric plate, a crown-type structure, a grounding radiation patch, a grounding parasitic structure and a feeder line; wherein the crown structure, the grounding radiation patch, the parasitic structure and the feeder line are respectively printed on two sides of the dielectric plate;
the grounding radiation patch and the grounding parasitic structure are electrically connected with the metal floor, and the crown structure is printed on the grounding radiation patch.
Further, the-45 crown structure-loaded microstrip element antenna main body is composed of a-45 crown structure, a-45 grounding radiation patch, a-45 parasitic structure, a-45 feeder line and a-45 dielectric plate.
Furthermore, a groove is formed above the center of the-45 dielectric plate, a-45 crown structure, a-45 grounding radiation patch and a-45 parasitic structure are printed on one side of the-45 dielectric plate, and a-45 feeder line is printed on the other side of the-45 dielectric plate;
-45 ground radiating patches are electrically connected to the metal floor, -45 crown structures are printed on top of-45 ground radiating patches and symmetrically distributed about-45 dielectric slab centre line;
-45 parasitic structures are printed under-45 ground radiating patches and are symmetrically distributed about-45 dielectric board centre line, -45 feed lines are soldered to the core of the radio frequency connector.
Furthermore, the main body of the microstrip element antenna with the +45 loading crown structure is composed of a +45 crown structure, a +45 grounding radiation patch, a +45 parasitic structure, a +45 feeder line and a +45 dielectric plate;
a slot is formed below the center of the +45 dielectric plate, a +45 crown structure, a +45 grounding radiation patch and a +45 parasitic structure are printed on one side of the +45 dielectric plate, and a +45 feeder line is printed on the other side of the +45 dielectric plate;
the +45 grounding radiation patch is electrically connected with the metal floor, and the +45 crown-shaped structure is printed above the +45 grounding radiation patch and symmetrically distributed about the center line of the +45 dielectric plate;
the +45 parasitic structure is printed below the +45 grounding radiation patch and is symmetrically distributed about the +45 dielectric plate central line, and the +45 feeder line is welded with the core line of the radio frequency connector.
Further, the scale of the 5G base station antenna array is 6 multiplied by 4, the working frequency band is 3.3 to 3.6GHz, the unit spacing is 43mm in the scanning plane, and the unit spacing is 65mm in the non-scanning plane.
Another object of the present invention is to provide an application of the 5G base station antenna having high isolation characteristics and wide-angle scanning characteristics in mobile communication.
By combining all the technical schemes, the invention has the advantages and positive effects that: the invention relates to a cross dipole antenna form based on crown structure loading, which is a 5G dual-polarized base station antenna design with high isolation and wide-angle beam scanning characteristics; the invention can be matched with base station equipment, and can be used as cellular signal coverage and 5G large-scale MIMO array.
The 5G dual-polarized base station antenna designed by the invention can realize the high isolation characteristic of more than 20dB among the units without introducing any other decoupling structure except the antenna units, and simultaneously has no directional diagram distortion problem in the wide-angle beam scanning process. The antenna unit is formed by that a-45-loaded crown-shaped microstrip oscillator antenna 1 and a + 45-loaded crown-shaped microstrip oscillator antenna 2 are mutually crossed at 90 degrees and placed on a metal floor, wherein the crown-shaped structure, the grounding radiation patch, the parasitic structure, the feeder line and the like are respectively printed on two sides of a dielectric plate, and the processing and the assembly are convenient; meanwhile, the invention has the advantages of simple structure, easy assembly, suitability for batch production and low manufacturing cost for the 5G dual-polarized base station antenna.
Drawings
Fig. 1 is a schematic structural diagram of a 5G base station antenna unit with high isolation characteristics and wide-angle scanning characteristics according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a microstrip element antenna with a-45 loading crown structure according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a microstrip element antenna with a +45 loading crown structure according to an embodiment of the present invention;
in the figure: 1. -45 loading a crown structured microstrip element antenna; 2. +45 microstrip element antenna with loaded crown structure; 3. a metal floor; 101. -45 crown-type structures; 102. -45 a ground radiating patch; 103. -45 a parasitic structure; 104. -45 feed lines; 105. -45 dielectric plates; 201. +45 crown type structures; 202. +45 ground radiating patches; 203. +45 parasitic structures; 204. +45 feed lines; 205. +45 dielectric plates.
Fig. 4 is a schematic structural diagram of an array-scale 6 × 45G dual-polarized base station antenna provided in an embodiment of the present invention.
Fig. 5 is a graph of simulated reflection coefficient results provided by an embodiment of the present invention.
Fig. 6 is a graph of simulated intra-cell cross-polarization isolation results provided by an embodiment of the present invention.
FIG. 7 is a graph showing the results of the inter-cell co-polarization isolation simulation provided by the embodiment of the present invention.
Fig. 8 is a graph showing the results of the inter-cell cross-polarization isolation simulation provided by the embodiment of the present invention.
Fig. 9 is a graph of simulated wide-angle beam scan pattern results at 3.3GHz provided by an embodiment of the invention.
Fig. 10 is a graph of simulated wide angle beam scanning pattern results at 3.45GHz provided by an embodiment of the invention.
Fig. 11 is a graph of wide angle beam scan pattern results at 3.6GHz provided by an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
In view of the problems in the prior art, the present invention provides a 5G dual-polarized base station antenna with high isolation characteristic and wide-angle scanning characteristic, and the present invention is described in detail below with reference to the accompanying drawings.
Those skilled in the art of the 5G base station antenna with high isolation and wide-angle scanning features provided by the present invention can also perform other steps, and the 5G base station antenna with high isolation and wide-angle scanning features provided by the present invention in fig. 1 is only one specific embodiment.
The 5G base station antenna with high isolation characteristic and wide-angle scanning characteristic provided by the embodiment of the invention comprises a plurality of antenna units and a metal floor, wherein the antenna units are arranged on the metal floor in a plane according to a certain rule, and specifically, 0.45 lambda is arranged in the scanning plane Center frequency Arranged in a non-scanning plane at 0.5 to 0.9 lambda Center frequency And the metal floor boards are arranged and installed. The array size (the invention has been illustrated with a 6 x 4 array) can be arranged as desired, increasing or decreasing the number of antenna elements. As an example, the antenna array of the 5G dual-polarized base station designed by the invention has the size of 6 multiplied by 4 and the working frequencyThe segments are arranged at 3.3 to 3.6GHz, the unit pitch in a scanning plane is 43mm, and the unit pitch in a non-scanning plane is 65 mm.
As shown in fig. 1, the 5G dual-polarized base station antenna unit provided in the embodiment of the present invention is composed of a-45-loaded crown-type microstrip element antenna 1, a + 45-loaded crown-type microstrip element antenna 2, and a metal floor 3.
The-45 loading crown type microstrip element antenna 1 and the +45 loading crown type microstrip element antenna 2 are arranged on the metal floor 3, and the size of the antenna unit is 23.5mm multiplied by 39.5mm.
The 45-loading crown-shaped structure microstrip element antenna 1 and the + 45-loading crown-shaped structure microstrip element antenna 2 are arranged in a mutually crossed mode at 90 degrees, the 45-loading crown-shaped structure microstrip element antenna is arranged above, and the + 45-loading crown-shaped structure microstrip element antenna is arranged below.
The-45-loaded crown-type microstrip element antenna 1 and the + 45-loaded crown-type microstrip element antenna 2 are respectively composed of a dielectric plate, a crown-type structure, a grounding radiation patch, a grounding parasitic structure, a feeder line and the like. Wherein the crown structure, the grounding radiation patch, the parasitic structure, the feeder line and the like are respectively printed on two sides of the dielectric plate. The grounding radiation patch and the grounding parasitic structure are electrically connected with the metal floor, and the crown structure is printed on the grounding radiation patch.
As shown in fig. 2, the main body of the microstrip element antenna 1 with the-45 loading crown structure provided by the embodiment of the invention is composed of a-45 crown structure 101, a-45 grounding radiation patch 102, a-45 parasitic structure 103, a-45 feed line 104 and a-45 dielectric plate 105.
A slot is formed above the center of a-45 dielectric plate 105, a-45 crown structure 101, a-45 grounding radiation patch 102 and a-45 parasitic structure 103 are printed on one side of the-45 dielectric plate 105, and a-45 feeder line 104 is printed on the other side of the-45 dielectric plate 105. The-45 ground radiation patch 102 is electrically connected with the metal floor 3, and the-45 crown structure 101 is printed above the-45 ground radiation patch 102 and symmetrically distributed about the center line of the-45 dielectric plate 105. The-45 parasitic structure 103 is printed under the-45 ground radiating patch 102 and is symmetrically distributed about the center line of the-45 dielectric slab 105. -45 feeder 104 is welded to the core of the radio frequency connector.
As shown in fig. 3, the main body of the microstrip element antenna 2 with the +45 loading crown structure provided in the embodiment of the present invention is composed of a +45 crown structure 201, a +45 ground radiation patch 202, a +45 parasitic structure 203, a +45 feeder line 204, and a +45 dielectric plate 205. Slotted under the center of the +45 dielectric plate 205, the +45 crown 201, +45 ground radiating patch 202, +45 parasitic structure 203 are printed on one side of the +45 dielectric plate 205 and the +45 feed line 204 is printed on the other side of the +45 dielectric plate 205. The +45 ground radiation patch 202 is electrically connected to the metal ground plate 3, and the +45 crown structure 201 is printed above the +45 ground radiation patch 202 and symmetrically distributed about the center line of the +45 dielectric plate 205. The +45 parasitic structures 203 are printed under the +45 ground radiating patch 202 and are symmetrically distributed about the center line of the +45 dielectric plate 205. The +45 feed line 204 is soldered to the core of the rf connector.
As shown in fig. 4, the 5G dual-polarized base station antenna is an array-scale 6 × 4 dual-polarized base station antenna, and the antenna is formed by arranging 5G dual-polarized base station antenna elements at an element pitch of 43mm in a scanning plane and at an element pitch of 65mm in a non-scanning plane.
The application effect of the present invention will be described in detail with reference to the simulation.
FIG. 5 is a diagram showing the result of reflection coefficient simulation in the embodiment of the present invention, and it can be known that the antenna has S11-10dB in the working frequency band of 3.3 to 3.6 GHz.
FIG. 6 is a diagram showing the results of the cross polarization isolation in the unit simulated by the embodiment of the present invention, and it can be known that the cross polarization isolation in the unit is greater than or equal to 20dB in the working frequency band of 3.3 to 3.6 GHz.
FIG. 7 is a result diagram of the inter-cell co-polarization isolation degree simulated by the embodiment of the invention, and it can be known that the inter-cell co-polarization isolation degree of the antenna is not less than 20dB within a working frequency band of 3.3 to 3.6 GHz.
FIG. 8 is a diagram showing the results of the cross polarization isolation between the units simulated by the embodiment of the invention, and it can be known that the cross polarization isolation between the units of the antenna is not less than 20dB in the working frequency band of 3.3 to 3.6 GHz.
Fig. 9 is a plot of wide angle beam scan pattern results at 3.3GHz simulated by an embodiment of the invention.
Figure 10 is a plot of wide angle beam scanning pattern results at 3.45GHz simulated by an embodiment of the invention.
Fig. 11 is a plot of wide angle beam scan pattern results at 3.6GHz simulated by an embodiment of the invention.
From fig. 9, 10, and 11, it can be known that the main beam of the antenna array can be scanned within a range of ± 55 °, the maximum gain drop of the main beam does not exceed 2.5dB during scanning, and the side lobe level can be controlled below-4.6 dBi all the time.
In the description of the present invention, "a plurality" means two or more unless otherwise specified; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and to simplify the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
The above description is only for the purpose of illustrating the embodiments of the present invention, and the scope of the present invention should not be limited thereto, and any modifications, equivalents and improvements made by those skilled in the art within the technical scope of the present invention as disclosed in the present invention should be covered by the scope of the present invention.
Claims (4)
1. A5G dual-polarized base station antenna with high isolation characteristic and wide-angle scanning characteristic is characterized in that the 5G dual-polarized base station antenna with high isolation characteristic and wide-angle scanning characteristic is composed of a plurality of antenna units and a metal floor, wherein the plurality of antenna units are arranged on the metal floor according to a certain rule in a plane;
the specific arrangement mode is as follows:
the central frequency of 0.45 lambda is arranged in the scanning plane, and the central frequency of 0.5-0.9 lambda is arranged and installed on the metal floor in the non-scanning plane; the number of the antenna units can be increased or decreased according to the array scale requirement;
the antenna unit is formed by placing a-45-degree loading crown-shaped microstrip oscillator antenna and a + 45-degree loading crown-shaped microstrip oscillator antenna in a crossed manner at a metal floor at an angle of 90 degrees;
the-45-loading crown-type microstrip oscillator antenna and the + 45-loading crown-type microstrip oscillator antenna are arranged on the metal floor, and the size of the antenna unit is 23.5mm multiplied by 39.5mm;
the-45-loading crown-type structure microstrip oscillator antenna and the + 45-loading crown-type structure microstrip oscillator antenna are mutually crossed at 90 degrees, the-45-loading crown-type structure microstrip oscillator antenna is arranged above the-45-loading crown-type structure microstrip oscillator antenna, and the + 45-loading crown-type structure microstrip oscillator antenna is arranged below the-45-loading crown-type structure microstrip oscillator antenna;
-a slot is arranged above the center of the-45 dielectric slab, -a 45 crown structure, -a 45 ground radiation patch, -a 45 parasitic structure is printed on one side of the-45 dielectric slab, -a 45 feeder line is printed on the other side of the-45 dielectric slab;
-45 ground radiation patches are electrically connected with the metal floor, and-45 crown structures are printed above the-45 ground radiation patches and are arranged at intervals with the-45 ground radiation patches and are symmetrically distributed about the center line of the-45 dielectric slab;
-45 parasitic structures are printed under-45 ground radiating patches and symmetrically distributed about-45 dielectric slab centre line, -45 feed lines are soldered to the core of the radio frequency connector;
the main body of the microstrip element antenna with the +45 loading crown type structure consists of a +45 crown type structure, a +45 grounding radiation patch, a +45 parasitic structure, a +45 feeder line and a +45 dielectric plate;
a groove is formed below the center of the +45 dielectric plate, a +45 crown structure, a +45 grounding radiation patch and a +45 parasitic structure are printed on one side of the +45 dielectric plate, and a +45 feeder line is printed on the other side of the +45 dielectric plate;
the +45 grounding radiation patch is electrically connected with the metal floor, and the +45 crown-shaped structure is printed above the +45 grounding radiation patch, is arranged at intervals with the-45 grounding radiation patch and is symmetrically distributed about the center line of the +45 dielectric plate;
the +45 parasitic structure is printed below the +45 grounding radiation patch and is symmetrically distributed about the center line of the +45 dielectric plate, and the +45 feeder line is welded with the core line of the radio frequency connector;
the antenna array scale of the 5G dual-polarized base station is 6 multiplied by 4, the working frequency band is 3.3-3.6 GHz, the unit spacing in the scanning plane is 43mm, and the unit spacing in the non-scanning plane is 65 mm.
2. The 5G dual-polarized base station antenna with high isolation characteristic and wide-angle scanning characteristic of claim 1, wherein the-45-loaded crown-structured microstrip element antenna and the + 45-loaded crown-structured microstrip element antenna are respectively composed of a dielectric plate, a crown-structured microstrip element antenna, a ground radiation patch, a ground parasitic structure and a feeder line; wherein the crown structure, the grounding radiation patch, the parasitic structure and the feeder line are respectively printed on two sides of the dielectric plate;
the grounding radiation patch and the grounding parasitic structure are electrically connected with the metal floor, and the crown structure is printed on the grounding radiation patch.
3. The 5G dual-polarized base station antenna with high isolation characteristic and wide-angle scanning characteristic according to claim 1, wherein the microstrip element antenna body of the-45 loading crown structure is composed of a-45 crown structure, a-45 grounding radiation patch, a-45 parasitic structure, a-45 feeder line and a-45 dielectric plate.
4. Use of a 5G base station antenna with high isolation and wide angle scanning characteristics according to any of claims 1 to 3 in mobile communications.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110702050.4A CN113540755B (en) | 2021-06-24 | 2021-06-24 | 5G dual-polarized base station antenna with high isolation characteristic and wide-angle scanning characteristic |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110702050.4A CN113540755B (en) | 2021-06-24 | 2021-06-24 | 5G dual-polarized base station antenna with high isolation characteristic and wide-angle scanning characteristic |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113540755A CN113540755A (en) | 2021-10-22 |
| CN113540755B true CN113540755B (en) | 2022-12-13 |
Family
ID=78096621
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110702050.4A Active CN113540755B (en) | 2021-06-24 | 2021-06-24 | 5G dual-polarized base station antenna with high isolation characteristic and wide-angle scanning characteristic |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113540755B (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108493602A (en) * | 2018-05-22 | 2018-09-04 | 华南理工大学 | A kind of dual-frequency base station antenna array of dual polarization duplexed antenna and its composition |
| CN109687135A (en) * | 2019-01-16 | 2019-04-26 | 重庆邮电大学 | A kind of wideband dual polarized base station antenna unit suitable for 4G/5G mobile communication |
Family Cites Families (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101364672B (en) * | 2008-09-17 | 2012-04-18 | 中国电子科技集团公司第三十八研究所 | Wideband dual-linear polarization bipole antenna array |
| WO2010042976A1 (en) * | 2008-10-15 | 2010-04-22 | Argus Technologies (Australia) Pty Ltd | Wideband radiating elements |
| KR20120086838A (en) * | 2011-01-27 | 2012-08-06 | 엘에스전선 주식회사 | Broad-band dual polarization dipole antenna on PCB type |
| CN102437416A (en) * | 2011-08-25 | 2012-05-02 | 电子科技大学 | Broadband low cross-polarization printed dipole antenna with parasitic element |
| CN102570055B (en) * | 2012-01-20 | 2013-11-06 | 广东博纬通信科技有限公司 | Dual-polarization eight-wave-beam antenna for mobile communication base station |
| CN103490152A (en) * | 2013-09-13 | 2014-01-01 | 华侨大学 | Broadband dual-polarized printed dipole antenna capable of integrating balun feeds |
| CN104934700A (en) * | 2015-06-26 | 2015-09-23 | 中国船舶重工集团公司第七二四研究所 | Antenna radiation unit with wide-angle pattern coverage and low cross-polarization level |
| KR20160094897A (en) * | 2016-06-30 | 2016-08-10 | 충북대학교 산학협력단 | Dual-Polarized Antenna |
| CN106711597A (en) * | 2017-01-03 | 2017-05-24 | 中国船舶重工集团公司第七二四研究所 | Printed oscillator array antenna module integrating amplitude-phase monitoring network |
| CN107293863A (en) * | 2017-05-03 | 2017-10-24 | 西安电子科技大学 | A kind of broad beam broadband dual polarized antenna |
| CN108242597A (en) * | 2018-01-05 | 2018-07-03 | 成都银丰信禾电子科技有限公司 | Ku band microstrip molded breadth angle sweep plate aerials |
| CN207800921U (en) * | 2018-01-12 | 2018-08-31 | 西安安列德电子科技有限公司 | A kind of MIMO phased array antenna |
| CN109599657B (en) * | 2018-11-29 | 2020-06-05 | 安徽大学 | Design method for 5G base station-oriented antenna array based on integrated design of antenna array and power division feed network |
| CN110098477B (en) * | 2019-05-16 | 2022-08-26 | 京信通信技术(广州)有限公司 | Radiation structure and array antenna |
| CN110165406B (en) * | 2019-06-27 | 2024-03-22 | 中国电子科技集团公司第五十四研究所 | Directional diagram reconfigurable antenna unit and phased array |
| CN112467403B (en) * | 2019-09-06 | 2024-01-19 | 成都恪赛科技有限公司 | Dual-frenquency common bore phased array antenna device suitable for Sub 6G |
| CN111987436A (en) * | 2020-07-03 | 2020-11-24 | 西安电子科技大学 | 5G frequency band wide beam dual-polarization base station antenna and mobile communication system |
| CN112018514A (en) * | 2020-09-27 | 2020-12-01 | 上海安费诺永亿通讯电子有限公司 | Dual-frequency dual-polarization omnidirectional antenna |
-
2021
- 2021-06-24 CN CN202110702050.4A patent/CN113540755B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108493602A (en) * | 2018-05-22 | 2018-09-04 | 华南理工大学 | A kind of dual-frequency base station antenna array of dual polarization duplexed antenna and its composition |
| CN109687135A (en) * | 2019-01-16 | 2019-04-26 | 重庆邮电大学 | A kind of wideband dual polarized base station antenna unit suitable for 4G/5G mobile communication |
Non-Patent Citations (1)
| Title |
|---|
| You-Feng Cheng ; Xiao Ding.《Reduction of Mutual Coupling Between Patch》.《IEEE Antennas and Wireless Propagation Letters ( Volume: 16)》.2016,全文. * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113540755A (en) | 2021-10-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP3622579B1 (en) | Base station antennas having parasitic coupling units | |
| US11575197B2 (en) | Multi-band antenna having passive radiation-filtering elements therein | |
| CN111326864B (en) | Coupling differential feed double compression mode patch antenna and solar cell integration | |
| CN112186339B (en) | Broadband circularly polarized magnetoelectric dipole antenna | |
| US20230017375A1 (en) | Radiating element, antenna assembly and base station antenna | |
| CN110011026B (en) | Antenna unit, antenna array and base station | |
| CN104966899A (en) | Omnidirectional antenna and omnidirectional antenna array | |
| CN112201939A (en) | Double-frequency fusion antenna based on super surface and communication equipment | |
| CN110957569A (en) | Broadband radiation unit and antenna | |
| CN215184541U (en) | Structure for inhibiting coupling of broadband dual-frequency dual-polarized base station antenna | |
| CN111430899A (en) | L type ultra wide band dual-polarized plane tightly-coupled antenna unit based on defected ground | |
| CN114883785B (en) | Thin dual-polarization ultra-wide bandwidth angle scanning array antenna | |
| CN114976665A (en) | Broadband dual-polarized dipole antenna loaded with stable frequency selective surface radiation | |
| CN113285219B (en) | Three-frequency common-aperture fusion antenna, fusion method and communication equipment | |
| CN113517558B (en) | High-isolation 5G base station antenna and wireless communication terminal | |
| CN210926312U (en) | Broadband radiation unit and antenna | |
| CN113540755B (en) | 5G dual-polarized base station antenna with high isolation characteristic and wide-angle scanning characteristic | |
| CN112234355A (en) | Broadband dual-frequency fusion antenna array based on vertical oscillator | |
| CN111987436A (en) | 5G frequency band wide beam dual-polarization base station antenna and mobile communication system | |
| CN112768878A (en) | Antenna assembly for beamforming antenna and base station antenna | |
| EP3985794A1 (en) | Radiating element and base station antenna | |
| CN115441175A (en) | Microwave millimeter wave common-caliber antenna based on partial structure multiplexing | |
| CN113161720B (en) | Antenna, base station and terminal with high isolation and low cross polarization level | |
| Satyanarayana et al. | Compact 8-port coupled-fed mimo antenna array for sub-6 ghz 5g smartphone terminals | |
| CN217158661U (en) | Low-profile strong-coupling antenna array |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |