CN110323565A - A kind of antenna for base station and the active antenna element for base station - Google Patents
A kind of antenna for base station and the active antenna element for base station Download PDFInfo
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- CN110323565A CN110323565A CN201910617086.5A CN201910617086A CN110323565A CN 110323565 A CN110323565 A CN 110323565A CN 201910617086 A CN201910617086 A CN 201910617086A CN 110323565 A CN110323565 A CN 110323565A
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- antenna
- base station
- main surface
- oscillator
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/02—Arrangements for de-icing; Arrangements for drying-out ; Arrangements for cooling; Arrangements for preventing corrosion
-
- 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
- H01Q1/42—Housings not intimately mechanically associated with radiating elements, e.g. radome
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/50—Structural association of antennas with earthing switches, lead-in devices or lightning protectors
-
- 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
- H01Q1/526—Electromagnetic shields
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- 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
- H01Q19/104—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 using a substantially flat reflector for deflecting the radiated beam, e.g. periscopic antennas
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- 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
- H01Q21/065—Patch antenna array
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q23/00—Antennas with active circuits or circuit elements integrated within them or attached to them
Abstract
This application discloses a kind of antenna for base station and for the active antenna element of base station, which includes: antenna substrate, and the antenna substrate is made of insulating material；Mutiple antennas oscillator is arranged in the first main surface of the antenna substrate with array manner, and the antenna oscillator is arranged in the form of sheets, and is attached in first main surface.The antenna for base station of the application can reduce element, reduce cost, and assembly technology is simple, improve production efficiency.
Description
Technical field
This application involves the technical fields of communication, are related to a kind of antenna for base station and the active antenna element for base station
(Active Antenna Unit, AAU).
Background technique
Wireless communication technique is fast-developing at present, and antenna for base station plays an increasingly important role in the network coverage.
Present inventor has found that existing antenna for base station includes antenna substrate, buckle and antenna vibration in long-term R&D work
Son, antenna substrate are metal material, are buckled as insulating materials.Existing antenna for base station needs to install buckle by assembly technology
On antenna substrate, then antenna oscillator is mounted on buckle, assembly technology is complicated, and the element of antenna for base station is more, at high cost.
Summary of the invention
In order to solve the above problem existing for the antenna for base station of the prior art, the application provides a kind of antenna for base station and use
Active antenna element in base station.
To solve the above problems, the embodiment of the present application provides a kind of antenna for base station comprising:
Antenna substrate, the antenna substrate are made of insulating material；
Mutiple antennas oscillator, the first main surface of the antenna substrate is arranged in array manner, and the antenna oscillator is in
Sheet setting, and be attached in first main surface.
A kind of active antenna element for base station is provided in order to solve the above technical problems, originally returning comprising:
Shell, the shell define accommodating cavity open at one end；
Filter assembly is set in the accommodating cavity, and has the multiple filter cells arranged with array manner；
Such as above-mentioned antenna for base station, the antenna for base station is covered on the top of the filter assembly, and each antenna
Oscillator is respectively connected to the corresponding filter cell.
Compared with prior art, the antenna for base station of the application includes the antenna substrate being made of insulating material and mutiple antennas
Oscillator reduces element, reduces cost without additional setting buckle；In addition, antenna oscillator is arranged in antenna substrate with array manner
The first main surface, and be attached in the first main surface, assembly technology is simple, improves production efficiency.
Detailed description of the invention
In order to illustrate the technical solutions in the embodiments of the present application or in the prior art more clearly, below will be to institute in embodiment
Attached drawing to be used is needed to be briefly described, it should be apparent that, the accompanying drawings in the following description is only some implementations of the application
Example, for those of ordinary skill in the art, without creative efforts, can also obtain according to these attached drawings
Obtain other attached drawings.
Fig. 1 is the structural schematic diagram of the antenna for base station of the application first embodiment；
Fig. 2 be in Fig. 1 antenna for base station along the diagrammatic cross-section of I-I line；
Fig. 3 is the diagrammatic cross-section of the antenna for base station of the application 3rd embodiment；
Fig. 4 is the diagrammatic cross-section of the antenna for base station of the application fourth embodiment；
Fig. 5 is the schematic perspective view of the active antenna element for base station of the application first embodiment；
Fig. 6 is the structural schematic diagram of boss in the active antenna element for base station of the application second embodiment；
Fig. 7 be in Fig. 6 shell along the diagrammatic cross-section of II-II line；
Fig. 8 is the structural schematic diagram of seal groove and the first pilot hole in Fig. 6；
Fig. 9 is the structural schematic diagram of shell in the active antenna element for base station of the application 3rd embodiment；
Figure 10 is that the structure of fin and cooling fin is shown in the active antenna element for base station of the application fourth embodiment
It is intended to；
Figure 11 is the structural schematic diagram of reinforcing frame in the active antenna element for base station of the 5th embodiment of the application；
Figure 12 is the structural schematic diagram of the active antenna element for base station of the application sixth embodiment；
Figure 13 is the schematic perspective view of handle in Figure 12；
Figure 14 is the schematic top plan view of handle in Figure 12；
Figure 15 is the partial structure diagram of shell in Fig. 8；
Figure 16 be in Fig. 5 filter assembly close to the structural schematic diagram of power board side；
Figure 17 is the structural schematic diagram that filter assembly deviates from power board side in Fig. 5.
Specific embodiment
With reference to the accompanying drawings and examples, the application is described in further detail.It is emphasized that following implement
Example is merely to illustrate the application, but is not defined to scope of the present application.Likewise, following embodiment is only the portion of the application
Point embodiment and not all embodiments, institute obtained by those of ordinary skill in the art without making creative efforts
There are other embodiments, shall fall in the protection scope of this application.
The description and claims of this application and term " first ", " second ", " third ", " in above-mentioned attached drawing
The (if present)s such as four " are to be used to distinguish similar objects, without being used to describe a particular order or precedence order.It should manage
The data that solution uses in this way are interchangeable under appropriate circumstances, so as to embodiments herein described herein, such as can be with
Sequence other than those of illustrating or describing herein is implemented.In addition, term " includes " and " having " and their times
What is deformed, it is intended that cover it is non-exclusive include, for example, contain the process, method of a series of steps or units, system,
Product or equipment those of are not necessarily limited to be clearly listed step or unit, but may include be not clearly listed or for
The intrinsic other step or units of these process, methods, product or equipment.
Shown in Figure 1, Fig. 1 is the structural schematic diagram of the antenna for base station of the application first embodiment.The present embodiment
Antenna for base station 10 includes antenna substrate 11 and mutiple antennas oscillator 12, and wherein antenna substrate 11 is made of insulating material, insulation material
Material may include one of plastic material, inorganic material, aluminium oxide, magnesia, aluminium hydroxide, silica or carbon fiber
Or it is a variety of.
Mutiple antennas oscillator 12 is arranged in the first main surface 111 of antenna substrate 11 with array manner, and array manner can be with
Including annular array or rectangular array；Each antenna oscillator 12 is arranged in the form of sheets, and is attached in the first main surface 111,
The shape of antenna oscillator 12 can be rectangle, square or polygon.
Wherein, antenna oscillator 12 can be attached at the first main table by modes such as thermoprint, printing, coating, plating or stickups
On face 111；Since antenna oscillator 12 is attached in the first main surface 111, compared with the antenna for base station of the prior art, antenna oscillator
The 12 height reduction relative to antenna substrate 11 can effectively reduce the volume of antenna for base station 10.
The assembly technology of the antenna for base station 10 may include: the antenna substrate 11 using insulating materials preparation pre-set dimension；
Antenna oscillator 12 is attached on the predeterminated position of the first main surface 111, to obtain above-mentioned antenna for base station 10.
The antenna for base station 10 of the present embodiment includes the antenna substrate 11 and mutiple antennas oscillator 12 being made of insulating material, day
Linear oscillator 12 is attached in the first main surface 111, without additional setting buckle, is reduced element, is reduced cost；Furthermore antenna for base station
10 assembly technology is simple, improves production efficiency.
The application further provides for the antenna for base station of second embodiment, on the basis of the antenna for base station 10 of first embodiment
On be described.As shown in Fig. 2, the antenna for base station 10 of the present embodiment may further include reflecting layer 13, reflecting layer 13 is attached
In antenna substrate 11 and the first main surface 111 in the second main surface 112 of setting, i.e., reflecting layer 13 can by thermoprint,
The modes such as printing, coating, plating or stickup are attached in the second main surface 112, the second main surface 112 and the first main surface 111
Backwards to setting.The material in the reflecting layer 13 may include one or more of silver, copper, aluminium, gold, iron, chromium, manganese or titanium；
Specifically, the material in the reflecting layer 13 of the present embodiment is aluminium.
Wherein, the distance between antenna oscillator 12 and reflecting layer 13 can for antenna for base station 10 centre frequency eight/
One wavelength；/ 8th wavelength is theoretical value, actual range between antenna oscillator 12 and reflecting layer 13 can eight/
One wavelength or so can satisfy corresponding radiance.
Reflecting layer 13 is used to aerial signal being gathered in corresponding antenna oscillator 12, to enhance the reception of antenna for base station 10
Ability；Reflecting layer 13 can be also used for stopping or shielding the interference signal for being located at 11 back side of antenna substrate, to avoid base station day
Line 10 is interfered in receiving antenna signal.
Antenna substrate 11 can be made of plastic material, and plastic material includes PE (Polyethylene, polyethylene), PP
(Polypropylene, polypropylene), PVC (Polyvinyl Chloride, polyvinyl chloride), PET (Polyethylene
Terephthalate, polyethylene terephthalate), PS (Polystyrene, polystyrene), PA (Polyamide, gather
Amide), PPS (Polyphenylenesulfide, polyphenylene sulfide), PC (Polycarbonates, poly- carbonic acid resin) or
One or more of person PI (Polyimide Film, Kapton).Antenna oscillator 12 is metal material, metal material
Material may include one or more of silver, copper, aluminium, gold, iron, chromium, manganese or titanium.
The application further provides for the antenna for base station of 3rd embodiment, on the basis of the antenna for base station 10 of first embodiment
On be described, the antenna for base station 10 of the present embodiment can be not provided with the revealed reflecting layer 13 of second embodiment.
As shown in figure 3, antenna for base station 10 further comprises the quantity mutiple antennas port 14 equal with antenna oscillator 12, i.e.,
The quantity of mutiple antennas port 14 is identical as the quantity of mutiple antennas oscillator 12；Each antenna port 14 respectively with corresponding antenna
Oscillator 12 connects.
In other embodiments, the quantity of mutiple antennas port 14 proportional can be closed to the quantity of mutiple antennas oscillator 12
System, for example, mutiple antennas port 14 quantity and mutiple antennas oscillator 12 quantity ratio be 1:3, i.e. 3 antenna oscillators 12
It is connect with 1 antenna port 14.
Mutiple antennas port 14 can be set in the second main surface 112, and antenna port 14 is in the first main surface 111
Projection can be least partially overlapped with antenna oscillator 12.Projection of the present embodiment antenna port 14 in the first main surface 111 with
Antenna oscillator 12 is completely overlapped, and quantity multiple through holes 113 corresponding with antenna port 14 are provided on antenna substrate 11, i.e., more
The quantity of a through hole 113 is identical as the quantity of mutiple antennas port 14；First main table of the connection antenna substrate 11 of through hole 113
Face 111 and the second main surface 112.
Antenna for base station 10 further comprises the multiple conductive columns 114 corresponded respectively in through hole 113, i.e., multiple conductive columns
114 quantity is identical as the quantity of multiple through holes 113；End face and antenna of the conductive column 114 close to the side of antenna oscillator 12
First main surface 111 of substrate 11 is concordant, and antenna oscillator 12 is attached on the end face of conductive column 114.
In the assembly technology of antenna for base station 10: conductive column 114 being arranged in through hole 113, so that conductive column 114
End face close to the side of antenna oscillator 12 is concordant with the first main surface 111 of antenna substrate 11；Antenna oscillator 12 is attached at
In first main surface 111 of antenna substrate 11, due to projection of the antenna port 14 in the first main surface 111 and antenna oscillator 12
It is least partially overlapped, therefore antenna oscillator 12 is attached on the end face of conductive column 114.
The material of conductive column 114 may include one or more of silver, copper, aluminium, gold, chromium, manganese or titanium, conductive column
The end face of 114 sides far from antenna oscillator 12 can be connected with corresponding antenna port 14.
The antenna for base station 10 of the present embodiment is further connect with filter assembly 20, which can be set
The lower section of second main surface 112 of antenna substrate 11, i.e. antenna for base station 10 are arranged on filter assembly 20, filter assembly 20
Including multiple port of wave filter 21, the quantity of multiple port of wave filter 21 is identical as the quantity of mutiple antennas port 14；Each day
Line end mouth 14 is connected with corresponding antenna oscillator 12 respectively, and is connected with corresponding port of wave filter 21.
Wherein, filter assembly 20 may include with the multiple filter cells 22 arranged with array manner, each filter
Wave device unit 22 corresponds to an antenna oscillator 12, and antenna oscillator 12 passes through antenna port 14 and port of wave filter 21 and corresponding filter
Wave device unit 22 connects.
The antenna for base station 10 of the application can be applied to 5G communication system, which may include multiple media
Filter, the material of the medium body of dielectric filter can be the material with the performances such as high dielectric constant and low-loss, example
Such as ceramics, glass or titanate.In other embodiments, antenna for base station 10 can also be applied to other communication systems, example
Such as 4G communication system.
It is covered on above filter assembly 20 in antenna for base station 10, antenna port 14 and corresponding port of wave filter 21 are each other
Contraposition patches.That is the position of antenna port 14 and the position of port of wave filter 21 is correspondingly arranged, and is covered on filter in antenna for base station 10
In wave device assembly 20, antenna port 14 can with corresponding port of wave filter 21 realize contraposition patch, at this time antenna port 14 with
Corresponding port of wave filter 21 connects.
The antenna port 12 of the present embodiment realizes that contraposition patches with corresponding port of wave filter 21, antenna for base station 10 and filtering
Device assembly 20 realizes connection without additional setting cable, avoids signal interference, saves cost.
The application further provides for the antenna for base station of fourth embodiment, it is different from the antenna for base station of 3rd embodiment it
Be in: as shown in figure 4, antenna for base station 10 further comprises being attached in the first main surface 111 and for connecting antenna port
14 and antenna oscillator 12 feeder line 15, therefore antenna oscillator 12 and feeder line 15 can be attached to together in the first main surface 111.
Mutiple antennas port 14 can be set in the second main surface 112, be provided with quantity and antenna on antenna substrate 11
The corresponding multiple through holes 113 in port 14, i.e., the quantity of multiple through holes 113 are identical as the quantity of mutiple antennas port 14；It passes through
The first main surface 111 and the second main surface 112 of the connection antenna substrate 11 of through-hole 113.
Optionally, antenna for base station 10 further comprises the multiple conductive columns 114 corresponded respectively in through hole 113, conductive
Column 114 is concordant close to the end face of the side of antenna oscillator 12 and the first main surface 111 of antenna substrate 11, and feeder line 15, which is attached at, leads
On the end face of electric column 114；The end face of side of the conductive column 114 far from antenna oscillator 12 can connect with corresponding antenna port 14
It connects.
The application further provides for the active antenna element for base station of first embodiment, as shown in figure 5, the active day
Line unit 50 includes shell 51, filter assembly 20 and antenna for base station 10.Shell 51 defines accommodating cavity open at one end, filter
Component 20 is set in accommodating cavity, and has the multiple filter cells 22 arranged with array manner.
Wherein, shell 51 includes bottom wall 511 and the multiple side walls 512 connecting with bottom wall 511, to define the appearance of an opening
Chamber is set, 4 side walls 512 connecting with bottom wall 511 can be set in shell 51.
The active antenna element 50 of the application is not traditional antenna, by Radio Frequency Subsystem (such as the application
Filter assembly 20, power board 56) and antenna for base station 10 organically combine；That is active antenna element 50 is by traditional antenna
Feeding network carry out digitized processing.The radio frequency unit and antenna separation design of traditional base station, and active antenna element 50
By active radio frequency unit (filter assembly 20, power board 56) and antenna (antenna for base station 10) unification design.Active antenna list
Member 50 designs the unification of far-end RF module (Remote Radio Unit, RRU) unit and antenna, so that the function of RRU unit
Rate amplification and reception are sufficiently utilized.RRU unit and antenna are integrated in an antenna by the active antenna element 50 of the application
In cover, prevention at radio-frequency port is externally provided, which is used to send radiofrequency signal to export-oriented vector network analyzer.
Antenna for base station 10 is covered on the top of filter assembly 20.Specifically, antenna for base station 10 can be set in shell 51
Opening so that antenna for base station 10 and shell 51 form a closed accommodating cavity, filter assembly 20 is located at closed accommodating
It is intracavitary.
The antenna for base station 10 can be the revealed antenna for base station of above-described embodiment, and the second main surface of antenna for base station 10 can
To be arranged with 20 interval of filter assembly.Wherein, each antenna oscillator of antenna for base station 10 is respectively connected to corresponding filter
Unit 22.
The filter assembly 20 of the present embodiment is set in accommodating cavity, and antenna for base station 10 is covered on the upper of filter assembly 20
Side, therefore filter assembly 20 and antenna for base station 10 can be set in same housing 51, save space, can shield interference letter
Number.
The application further provides for the active antenna element for base station of second embodiment, as shown in fig. 6, multiple side walls
512 are provided with the boss 550 protruded towards accommodating cavity far from 511 one end of bottom wall, and then define the thickness that a width is greater than side wall 512
The support end face 513 of degree.Antenna substrate 11 is supported on support end face 513 of the side wall 512 far from 511 one end of bottom wall, and then is covered
Lid accommodating cavity.
Wherein, at least one side wall 512 tilts outward, i.e., at least one side wall 512 is with one end close to bottom wall 511
Origin is tilted towards the direction away from accommodating cavity, forms obtuse angle between at least one side wall 512 and bottom wall 511.The range at the obtuse angle
It can be 95-120 °, obtuse angle specifically can be 95 °, 98 °, 110 °, 112 °, 115 °, 118 ° and 120 ° etc..
The side wall 512 of the present embodiment is provided with the boss 550 protruded towards accommodating cavity far from 511 one end of bottom wall, in shell
When 51 size (length) is fixed, towards accommodating cavity, the distance between two side walls 512 being oppositely arranged become boss 550
Greatly, it is capable of increasing the use space of accommodating cavity.
Wherein, support end face 513 is divided into the first stage body and the second stage body, First on the direction towards bottom wall 511
Body is greater than the second stage body along the cross-sectional width of 51 length direction of shell along the cross-sectional width of 51 length direction of shell.
As shown in fig. 7, the first pilot hole 514 and seal groove 515 are further provided on support end face 513, wherein first
The depth of pilot hole 514 is greater than the height of the first stage body, and extends in the second stage body；The depth of seal groove 515 is less than first
The height of stage body, so that the first pilot hole 514 and the setting of seal groove 515 are on support end face 513.
The active antenna element 50 of the application further comprises sealing element, and such as waterproof adhesive tape, sealing element is embedded in seal groove
In 515；Antenna substrate 11 is pressed on sealing element by the fastener being inserted in the first pilot hole 514, i.e. the first pilot hole
514 for planting fastener, so that antenna substrate 11 is fixed on support end face 513, antenna substrate 11 is pressed on close at this time
On sealing.
As shown in figure 8, seal groove 515 includes the length direction D1 extension along support end face 513 and is located at the first pilot hole
It first slot section 516 of 514 two sides and is set around the periphery of the first pilot hole 514 and connects two adjacent the first slot sections 516
The second slot section 517, the second slot section 517 can be located at the first pilot hole 514 close to the side of accommodating cavity, i.e. the first pilot hole
514 are located at the outside of seal groove 515, can be improved the waterproofness of active antenna element 50.
Specifically, support end face 513 is arranged in rectangle, and linearly setting, the second slot section 517 are arc-shaped for the first slot section 516
Setting.Wherein, the shortest distance between the extended line of the middle separated time 518 of the first slot section 516 and the center of the first pilot hole 514 is small
It can be identical as the groove width of the second slot section 517 in the groove width of 1/6th of the groove width of the first slot section 516, first slot sections 516.
It is supported in the present embodiment and is provided with arc-shaped the second slot section 517 and the between each first slot section 516 of end face 513
One pilot hole 514 is equivalent to compared to continuous whole straight-line groove section is arranged in support end face 513 by whole straight-line groove section
Multiple the first shorter slot sections 516 are divided into, thus keep the seal loading being embedded in seal groove 515 more uniform, it is fixed
Property is stronger, and waterproof performance is more preferable.
Wherein, the extended line of the middle separated time 518 of the first slot section 516 can pass through the center of the first pilot hole 514.
The application further provides for the active antenna element for base station of 3rd embodiment, as shown in figure 9, side wall 512
Both ends including being oppositely arranged with bottom wall 511 connect and with 511 integrally formed two the first side walls 530 of bottom wall and relative to
Independent two second sidewalls 540 for forming and being fixedly connected respectively with the other both ends of bottom wall 511 and the first side wall 530 of bottom wall 511.
Wherein, bottom wall 511 and two the first side walls 530 are integrally formed by extrusion process.
In an application scenarios, the material for being used to make shell 51 is first subjected to heating and melting, so that the material is in fluid
Shape；Then extrusion die is pushed to squeeze the material after melting along fixed-direction using screw rod or plunger, by screw rod or plunger
Squeezing action can make the material after being melted under the promotion of pressure, be forced through the aperture of extrusion die and be shaped to have
There is constant cross-section continuous section bar, which includes bottom wall 511 and two the first side walls 530, the direction of extrusion of extrusion die
It is parallel with the length direction of two the first side walls 530；The continuous section bar is cooled down finally by cooling device, keeps this continuous
Profile loses mecystasis and solidifies.
Wherein, the shape of the aperture of extrusion die and bottom wall 511 and two the first side walls 530 are perpendicular to the direction of extrusion
The section of plane is identical.
The present embodiment can make two second sidewalls 540 by techniques such as die cast or extrusion formings respectively, so
Two second sidewalls 540 are spliced to the other both ends of the not set the first side wall 530 of bottom wall 511 afterwards, and solid with the first side wall 530
Fixed connection.
The accommodating cavity of shell 51 is used to accommodate the internal component (not shown) of active antenna element, for example, antenna oscillator and
Feeder line etc., shell 51 can protect internal component, prevent damage of the foreign matters such as rainwater and dust to internal component.
Wherein, the present embodiment shell 51 can be made of plastic material, the plastic material include PE (Polyethylene,
Polyethylene), PP (Polypropylene, polypropylene), PVC (Polyvinyl Chloride, polyvinyl chloride), PET
(Polyethylene Terephthalate, polyethylene terephthalate), PS (Polystyrene, polystyrene), PA
(Polyamide, polyamide), PPS (Polyphenylenesulfide, polyphenylene sulfide), PC (Polycarbonates,
One or more of poly- carbonic acid resin) or PI (Polyimide Film, Kapton).In other embodiments
In, shell can also be made of glass reinforced plastic, and glass reinforced plastic not only has superpower corrosion-resistant impact resistance, and can play beautification
Effect, electromagnetic penetration ability is stronger.
Be different from the prior art, the application for base station active antenna element shell using extrusion process make bottom wall and
Two lateral walls are integrally formed, and relative to existing moulding process, without cutting and technique for grinding etc., therefore not will cause material
Waste, and manufacture craft can be simplified.Therefore, the embodiment of the present application can simplify making for shell, save production cost.
Wherein, two second sidewalls 540 can pass through the other both ends and the first side wall 530 of welding manner and bottom wall 511
It is fixedly connected.The present embodiment can use Friction Stir Welding mode by second sidewall 540 and bottom wall 511 and the first side wall 530
It is fixed.In this way, heat affecting of the welding point to weld can be reduced, remaining stress is smaller, and shell 51 is not easy
Deformation, and Automation of Welding level can be improved, pollution is few etc..
It specifically, as shown in figure 15, can be in the path of welding of bottom wall 511, the first side wall 530 and second sidewall 540
Knife structure 712 is provided in the end 711；When carrying out friction welding, cutter respectively with bottom wall 511 and second sidewall 540, the first side
Wall 530 and the friction of second sidewall 540 melt its contact surface, when knife structure 712 can collect cutter and go out knife from path of welding out
The liquid taken out of avoids liquid from instilling in shell 51, and after liquid cooled and solidified, knife structure 712 and its interior can be gone out with mill off
Solid.
It certainly, in other embodiments, can also be using the structures such as screw or buckle by second sidewall and bottom wall and the
One side wall is fixed, while can also do encapsulation process in the junction of second sidewall and bottom wall and the first side wall, to increase shell
Sealing effect.
Wherein, close to accommodating cavity side, chamfered transition is connect the first side wall 530 with 511 junction of bottom wall；The first side wall
530 connect away from the side of accommodating cavity in no transition with 511 junction of bottom wall.
Optionally, the end face that both bottom wall 511 and the first side wall 530 are disposed adjacent with second sidewall 540 is stepped to be set
It sets, second sidewall 540 is set on the ladder, and the outer surface of second sidewall 540 is coplanar with the outmost surface of the ladder end face,
The top surface of second sidewall 540 is coplanar with the top surface of the first side wall 530, to form smooth surface of shell, convenient for shell 51 and its
The assembling of its component.
By the above-mentioned means, second sidewall 540 is enabled to abut with the ladder end face, second sidewall 540 can be prevented
It is slided into accommodating cavity, improves the stability of shell 51.
The application further provides for the active antenna element for base station of fourth embodiment, as shown in Figure 10, bottom wall 511
It is integrally formed far from accommodating cavity side and is provided with fin 519, i.e., bottom wall 511 and fin 519 are integrally formed setting；On bottom wall 511
It is provided with pilot hole 520.Wherein, the depth of pilot hole 520 is greater than the thickness of bottom wall 511, and extends in fin 519.
The pilot hole 520 of the present embodiment extends in fin 519, therefore pilot hole 520 guarantees without punching bottom wall 511
The leakproofness of shell 51 avoids the signal in shell 51 from revealing and be interfered.
Fin 519 can be in the form of a column setting, and the axis direction of fin 519 is parallel with bottom wall 511.Bottom wall 511 is far from accommodating
Further integrally formed with multiple spaced cooling fins 55, part of cooling fin 55 is set on fin 519 for chamber side.
Wherein, heat dissipation 55 is vertically arranged with bottom wall 511.Protrusion or groove can also be arranged in the surface of cooling fin 55, with
Increase heat dissipation area, improves the heat dissipation effect of shell 51.
Wherein, cooling fin 55 can be the preferable tablets of thermal conductivity such as copper sheet or aluminium flake.
Please be further shown in Figure 5, the active antenna element 50 of the application further comprises power board 56 and filter
Component 20, power board 56 are set in accommodating cavity, and filter assembly 20 is covered on the top of power board 56, for power board 56
It is electromagnetically shielded.Wherein, power board 56 is electrically connected with filter assembly 20, and power board 56 is used to carry out radiofrequency signal
Power amplification, and by amplified radio signal transmission to filter assembly 20, filter assembly 20 from amplified for penetrating
The radiofrequency signal or the radiofrequency signal other than specific frequency for obtaining specific frequency in frequency signal.It is different from the prior art, this implementation
Example can be realized by filter assembly to the electromagnetic shielding of power board, without additionally installing shielding case, therefore can be simplified
The installation process of active antenna element.
Wherein, power board 56 can be set on bottom wall 511, and cooling fin 55 is for radiating to power board 56.Heat dissipation
The thickness of piece 55 can be less than the thickness of fin 519.Fin 519 is arc-shaped setting perpendicular to the cross section of axis direction, until
Small part cooling fin 55 is set at the arc top position of fin 519.
Wherein, the quantity of fin 519 can be multiple, and be arranged along the orientation interval of cooling fin.Rest part dissipates
Backing 55 is set in the interval region of fin 519.
In other embodiments, cooling fin 55 is all set at the arc top position of fin 519, or is arranged at intervals at convex
Between rib 519.
As shown in figure 16, the filter assembly 20 of the application has been provided projectingly baffle assembly 23 close to 56 side of power board,
Baffle assembly 23 is used to form bit-avoiding slot 24, and bit-avoiding slot 24 is used to accommodate the component on power board 56.
Wherein, baffle assembly 23 can be integrally formed with filter assembly 20；Baffle assembly 23 can pass through punching press, CNC
Or the technological formings such as injection molding.
Wherein, baffle assembly 23 includes that filter assembly 20 is arranged in close to the first partition of 56 side periphery of power board
231 and the multiple second partitions 232 and third partition 233 that are arranged in first partition 231；The outer surface of first partition 231 with
The side of filter assembly 20 is concordant, and the inner surface of first partition 231 is connect with second partition 232 and third partition 233, third
Partition 233 is divided equally and perpendicular to second partition 232, and third partition 233 is vertical with a side of first partition 231, so as to be formed
Bit-avoiding slot 24 in rectangle be arranged.
In other embodiments, the shape for the bit-avoiding slot that baffle assembly is formed can be with oval, hexagon etc.；And not
Whether the shape for limiting each bit-avoiding slot is identical, and the concrete shape of bit-avoiding slot is related with the layout of component on power amplifier unit, keeps away
Position slot should be able to accommodate the component on power amplifier unit.
First partition 231, second partition 232 and third partition 233 close to power board 56 an end face so that filtering
Device assembly 20 can be smoothly mounted on power board 56, can reduce the electromagnetic exposure of power board 56, to improve to power board 56
Electromagnetic shielding performance.
The present embodiment filter assembly 20 includes 4 groups of filter assemblies 20, and every group of filter assembly 20 includes in two column rows
16 filter cells 22 of cloth, baffle assembly 23 form 16 bit-avoiding slots close to 56 side of power board in filter assembly 20
24, to accommodate the component on 16 power amplifier units respectively.Wherein, which includes power amplifier.
Further, the present embodiment further includes antenna for base station 50 for the active antenna element of base station, and antenna for base station 50 covers
Antenna oscillator (figure is not marked) set on the top of filter assembly 20, and antenna for base station 50 is electrically connected to the filter of filter assembly 20
Wave device unit 22 for the filtered emission of radio frequency signals of filter cell 22 to be gone out, or receives radio signal transmission and gives
Filter cell 22 carries out clutter and filters out.
Filter cell 22 is cavity body filter, and multiple cavities filter shares a substrate (not shown).Substrate is metal
Substrate, the metal can be the metals such as copper or aluminium, or be alloys etc..
As shown in figure 17, filter cell 22 includes multiple cascade resonant cavities 221 open at one end, is set in resonant cavity 221
It is equipped with resonant rod (not shown) and tuning screw (not shown), each resonant cavity 221 and the intracorporal resonant rod of its chamber and tuning spiral shell
Bar constitutes a resonator；It is connected between cascade two resonant cavities 221 by window (not shown), cascade two resonant cavities
221 carry out signal transmission by window；First order resonant cavity 221 and the setting of afterbody resonant cavity 221 at edge, convenient for it is defeated
Enter the connection of output port 412.
The filter cell 22 of the present embodiment is provided with 10 resonant cavities, 221,10 resonant cavities 221 in three rows or three column rows
Cloth, every row or each column resonant cavity 221 and the resonant cavity 221 of adjacent rows or adjacent column are staggered.
The filter assembly 20 of the present embodiment includes 4 substrates, and the filter cell 22 on each substrate is in two rows or two
Column are arranged, and the resonant cavity 221 of the filter cell 22 in every row or each column is arranged identical
Certainly, in other embodiments, the quantity of substrate is not limited；The quantity of substrate upper filter unit is not limited；No
The quantity and arrangement mode of resonant cavity in limiting filtering device unit；It is whether identical that multiple filter cell structures are not limited yet, etc.
Deng.
Wherein, the opening of resonant cavity 221 is towards antenna for base station 10.
Wherein, the filter cell 22 of the present embodiment includes filtering channel all the way, realizes the one-way transmission of signal.Other
In embodiment, filter cell can also be substituted for the filter cell including signal receiving channel and signal transmission channel,
Make a filter cell while realizing the transmitting-receiving of signal.It is, of course, also possible to which the setting of multichannel filtering channel is single in a filtering
In member, the resonator in filter unit is divided into multichannel setting, to form multichannel filtering channel, is then connected using common cavity more
Road filtering channel, etc..
Be different from the prior art, the present embodiment for base station active antenna element by filter assembly and antenna for base station collection
At in shell, the integrated level of active antenna element can be improved, can satisfy the integrated level requirement of 5G communication system.
The application further provides for the active antenna element for base station of the 5th embodiment, as shown in figure 5, the application
Active antenna element 50 further comprises reinforcing frame 54, and reinforcing frame 54 is used to the pressing of antenna substrate 11 being fixed on support end face
On 513, i.e., when antenna substrate 11 is supported on support end face 513, reinforcing frame 54 presses antenna substrate 11, so that
Antenna substrate 11 is fixed on support end face 513.
The active antenna element 50 of the present embodiment is provided with reinforcing frame 54, for support to be fixed in the pressing of antenna substrate 11
On end face 513, the intensity that antenna substrate 11 is fixed on support end face 513 can be improved.
As shown in figure 11, reinforcing frame 54 includes the first framework 541 and second framework 542 of L-shaped connection, wherein the first frame
Body 541 is pressed on side of the antenna substrate 11 far from support end face 513, and second framework 542 is set to side wall 512 far from accommodating cavity
Side.The pressing of antenna substrate 11 is fixed on support end face 513 by reinforcing frame 54 by the first framework 541, and reinforcing frame 54 is logical
It crosses second framework 542 and realizes limit function.
It can be respectively arranged with the first pilot hole 514 and the second pilot hole 543 in support end face 513 and the first framework 541,
That is support end face 513 is provided with multiple first pilot holes 514, and multiple second dresses are provided on the corresponding position of the first framework 541
Distribution 543, the quantity of multiple first pilot holes 514 are identical as the quantity of the second pilot hole 543.
First framework 541 and support end face 513 are further by being inserted in the first pilot hole 514 and the second pilot hole 543
Interior fastener is fixed to one another；When the second pilot hole 543 and corresponding first pilot hole 514 are aligned, fastener is for fixing
Reinforcing frame 54, i.e., be fixed on support end face 513 by the first framework 541 and support end face 513；The fastener can be screw
Nail, the first pilot hole 514 and the second pilot hole 543 all can be screw holes.Wherein, supporting end face 513 and reinforcing frame 54 is in square
The setting of shape ring-type.
The application further provides for the active antenna element for base station of sixth embodiment, as shown in figs. 12-14, this reality
The active antenna element 50 for applying example further comprises handle 57.Handle 57 includes grip part 571 and connection grip part 571 and shell
The interconnecting piece 572 of body 51, wherein interconnecting piece 572 can be fixed on shell 51 by welding manner, to connect 571 He of grip part
Shell 51.Grip part 571 is provided with the fitting surface 573 with external fixed column (not shown) form fit far from the side of shell；
It is provided with through hole 574 on grip part 571, through hole 574 is passed through with fixed column outside permission, and then handle 57 is fixed on outside
In portion's fixed column.External fixed column can be the fixed column of base station, for placing active antenna element 50；It is i.e. fixed in handle 57
When in external fixed column, active antenna element 50 is mounted in external fixed column.
The quantity of interconnecting piece 572 can be two, and two interconnecting pieces 572 are set along the length direction interval of grip part 571
It sets.Spacing between two interconnecting pieces 572, which is arranged to manpower, can hold grip part 571 between two interconnecting pieces 572, so that
Manpower can be easy to hold grip part 571.
The quantity of through hole 574 can be two, i.e., two through holes 574 are arranged on grip part 571, and two pass through
Through-hole 574 is arranged along the length direction interval of grip part 571.
The arc-shaped setting of fitting surface 573, in order to which external fixed column passes through through hole 574.The both ends of grip part 571 are arranged
There are two connecting hole 575, two connecting holes 575 can be used for mutually fixing with sunshading board (not shown).
Wherein, the width and/or thickness of 573 region of fitting surface can be greater than grip part 571 and connect with interconnecting piece 572
The width and/or thickness of position region, such as the width of 573 region of fitting surface are greater than grip part 571 and interconnecting piece
The width of 572 link position regions；Or the thickness of 573 location of fitting surface is greater than grip part 571 and interconnecting piece 572 connects
Connect the thickness of position region.Grip part 571 is arranged fluted 576 far from the side of shell 51, and through hole 574 is located at groove
576 bottom.
The grip part 571 of the present embodiment is provided with the fitting surface with external fixed column form fit far from the side of shell 51
573, through hole 574 is provided on grip part 571, external fixed column passes through through hole 574, handle 57 is fixed on external solid
On fixed column, so that active antenna element 50 can be hung in external fixed column, the usage experience of user is improved.
It should be noted that the above various embodiments belongs to same inventive concept, the description of each embodiment emphasizes particularly on different fields,
Not detailed place is described in separate embodiment, can refer to the description in other embodiments.
Protection circuit and control system provided by the embodiment of the present application are described in detail above, it is used herein
The principle and implementation of this application are described for specific case, and the above embodiments are only used to help understand
The present processes and its core concept；At the same time, for those skilled in the art is having according to the thought of the application
There will be changes in body embodiment and application range, in conclusion the content of the present specification should not be construed as to the application
Limitation.
Claims (10)
1. a kind of antenna for base station, which is characterized in that the antenna for base station includes:
Antenna substrate, the antenna substrate are made of insulating material；
Mutiple antennas oscillator is arranged in the first main surface of the antenna substrate with array manner, and the antenna oscillator is in the form of sheets
Setting, and be attached in first main surface.
2. antenna for base station according to claim 1, which is characterized in that the antenna oscillator by thermoprint, printing, coating,
Plating or bonding method are attached in first main surface.
3. antenna for base station according to claim 1, which is characterized in that the antenna substrate is plastic material, the antenna
Oscillator is metal material.
4. antenna for base station according to claim 1, which is characterized in that the antenna for base station further comprises reflecting layer, institute
It states reflecting layer and is attached at the antenna substrate and first main surface in the second main surface of setting.
5. antenna for base station according to claim 1, which is characterized in that the antenna for base station further comprise quantity with it is described
Antenna oscillator is equal or the mutiple antennas port of proportional relationship, each antenna port shake with the corresponding antenna respectively
Son connection, and connected with the port of wave filter of corresponding filter assembly.
6. antenna for base station according to claim 5, which is characterized in that the antenna for base station further comprises attaching described the
The feeder line of the antenna port and the antenna oscillator is connected in one main surface.
7. antenna for base station according to claim 6, which is characterized in that it is main that the multiple antenna port is set to described second
On surface, quantity multiple through holes corresponding with the antenna port, the through hole connection are provided on the antenna substrate
First main surface and second main surface, the antenna for base station further comprise be set to it is multiple in the through hole
Conductive column, the conductive column is concordant with first main surface close to the end face of the antenna oscillator side, and the feeder line attaches
In on the end face of the conductive column.
8. antenna for base station according to claim 5, which is characterized in that it is main that the multiple antenna port is set to described second
On surface, projection and the antenna oscillator of the antenna port in first main surface are least partially overlapped, the day
Quantity multiple through holes corresponding with the antenna port are provided on line substrate, the through hole is connected to first main surface
With second main surface, the antenna for base station further comprises respectively corresponding the multiple conductions being set in the through hole
Column, the conductive column is concordant with first main surface close to the end face of the antenna oscillator side, and the antenna oscillator attaches
In on the end face of the conductive column.
9. antenna for base station according to claim 5, which is characterized in that the antenna for base station is covered on the filter assembly
Top, the antenna port are patched with the corresponding port of wave filter alignment therewith.
10. a kind of active antenna element for base station, which is characterized in that the active antenna element includes:
Shell, the shell define accommodating cavity open at one end；
Filter assembly is set in the accommodating cavity, and has the multiple filter cells arranged with array manner；
Antenna for base station as described in any one of claims 1-9, the antenna for base station are covered on the upper of the filter assembly
Side, and each antenna oscillator is respectively connected to the corresponding filter cell.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2019103654698 | 2019-04-30 | ||
| CN201910365469 | 2019-04-30 |
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| CN110323565A true CN110323565A (en) | 2019-10-11 |
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| CN201921071679.8U Active CN210723355U (en) | 2019-04-30 | 2019-07-09 | Base station antenna and active antenna unit for base station |
| CN201910617086.5A Pending CN110323565A (en) | 2019-04-30 | 2019-07-09 | A kind of antenna for base station and the active antenna element for base station |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201921071679.8U Active CN210723355U (en) | 2019-04-30 | 2019-07-09 | Base station antenna and active antenna unit for base station |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021135266A1 (en) * | 2019-12-31 | 2021-07-08 | 京信通信技术(广州)有限公司 | Array antenna |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN210723355U (en) * | 2019-04-30 | 2020-06-09 | 深圳市大富科技股份有限公司 | Base station antenna and active antenna unit for base station |
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| CN207116667U (en) * | 2017-08-04 | 2018-03-16 | 广东通宇通讯股份有限公司 | Antenna for base station mounting structure |
| KR20180055772A (en) * | 2016-11-16 | 2018-05-25 | 주식회사 케이엠더블유 | MIMO Antenna Assembly |
| CN109219882A (en) * | 2016-05-31 | 2019-01-15 | 瑞典爱立信有限公司 | Multilayer board and wireless communication node |
| US20190020107A1 (en) * | 2017-01-30 | 2019-01-17 | Verizon Patent And Licensing Inc. | Optically controlled meta-material phased array antenna system |
| CN109326891A (en) * | 2018-10-16 | 2019-02-12 | 广东通宇通讯股份有限公司 | A kind of AAU front-end architecture for 5G wireless telecommunications system |
| CN210723355U (en) * | 2019-04-30 | 2020-06-09 | 深圳市大富科技股份有限公司 | Base station antenna and active antenna unit for base station |
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2019
- 2019-07-09 CN CN201921071679.8U patent/CN210723355U/en active Active
- 2019-07-09 CN CN201910617086.5A patent/CN110323565A/en active Pending
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| CN109219882A (en) * | 2016-05-31 | 2019-01-15 | 瑞典爱立信有限公司 | Multilayer board and wireless communication node |
| KR20180055772A (en) * | 2016-11-16 | 2018-05-25 | 주식회사 케이엠더블유 | MIMO Antenna Assembly |
| US20190020107A1 (en) * | 2017-01-30 | 2019-01-17 | Verizon Patent And Licensing Inc. | Optically controlled meta-material phased array antenna system |
| CN207116667U (en) * | 2017-08-04 | 2018-03-16 | 广东通宇通讯股份有限公司 | Antenna for base station mounting structure |
| CN109326891A (en) * | 2018-10-16 | 2019-02-12 | 广东通宇通讯股份有限公司 | A kind of AAU front-end architecture for 5G wireless telecommunications system |
| CN210723355U (en) * | 2019-04-30 | 2020-06-09 | 深圳市大富科技股份有限公司 | Base station antenna and active antenna unit for base station |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2021135266A1 (en) * | 2019-12-31 | 2021-07-08 | 京信通信技术(广州)有限公司 | Array antenna |
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| CN210723355U (en) | 2020-06-09 |
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