CN110323556A - A kind of active antenna element and antenna element for base station - Google Patents
A kind of active antenna element and antenna element for base station Download PDFInfo
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- CN110323556A CN110323556A CN201910616658.8A CN201910616658A CN110323556A CN 110323556 A CN110323556 A CN 110323556A CN 201910616658 A CN201910616658 A CN 201910616658A CN 110323556 A CN110323556 A CN 110323556A
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Classifications
-
- 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
-
- 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
-
- 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
- H01Q19/02—Details
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q19/00—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic
- H01Q19/10—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using reflecting surfaces
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
- H01Q21/0006—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
- H01Q23/00—Antennas with active circuits or circuit elements integrated within them or attached to them
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- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Variable-Direction Aerials And Aerial Arrays (AREA)
- Support Of Aerials (AREA)
Abstract
This application discloses a kind of active antenna elements and antenna element for base station.The active antenna element for being used for base station includes: filter assembly and antenna for base station, wherein filter assembly includes multiple filter cells；Antenna for base station includes antenna substrate and N group antenna oscillator group, N group antenna oscillator group is arranged in the first main surface of antenna substrate with array manner, antenna for base station is set to the top of filter assembly, and every group of antenna oscillator group is connected by same function separated time with corresponding filter cell.In this way, the structure of active antenna element can be simplified, improve integrated level.
Description
Technical field
This application involves the technical fields of communication, are related to a kind of active antenna element (Active for base station
Antenna Unit, AAU) and antenna element.
Background technique
With the rapid development of mobile communication technology, especially upcoming 5G communication, to entire communication system architecture
It proposes harsher technical requirements, i.e., to realize that efficient, quick, high capacity communication, system module are accomplished highly integrated again
Change, miniaturization, lightweight, low cost.Extensive 5G Massive MIMO technology is to realize high capacity communication, the day used
Line number amount perhaps 8 becomes 64,128 or 256 by original 2,4；In view of the actual installation of communication system, package size
It should not be too large, or even also to miniaturise；Important component of the antenna as communication system, size is to base station system
Package size play vital influence, therefore how to realize the miniaturization of antenna complete machine, micromation and integrated, be pair
Most urgent one of the technical requirements of antenna complete product.
Present inventor has found that in the prior art, each antenna oscillator of antenna is equal in long-term R&D work
Filter cell connection corresponding with one, with the increase of antenna amount and its antenna oscillator quantity, the quantity of filter cell
Also it can obviously increase, cause antenna structure complicated, be not able to satisfy the requirement of the communication systems such as 5G.
Summary of the invention
In order to solve the above problem existing for the active antenna element for base station of the prior art, the application provides one kind
Active antenna element and antenna element for base station.
To solve the above problems, the embodiment of the present application provides a kind of active antenna element for base station.It is described active
Antenna element includes: filter assembly, including multiple filter cells；Antenna for base station, including antenna substrate and N group antenna oscillator
Group, the N group antenna oscillator group are arranged in the first main surface of the antenna substrate with array manner, and the antenna for base station is set
It is placed in the top of the filter assembly, and antenna oscillator group described in every group passes through same function separated time and the corresponding filter
Unit connection.
To solve the above problems, the embodiment of the present application provides another antenna element for being used for base station comprising: shell
Body, shell includes bottom wall and the side wall that connect with bottom wall, to define accommodating cavity open at one end；Antenna for base station, antenna for base station
It is arranged in the mutiple antennas oscillator in the first main surface of antenna substrate including antenna substrate and with array manner, wherein antenna
Substrate is supported in side wall far from the support end face of bottom wall one end, and then covers accommodating cavity；Reinforcing frame, reinforcing frame are used for antenna
Substrate pressing is fixed on support end face.
Compared with prior art, the application includes filter assembly and antenna for base station for the active antenna element of base station,
Wherein, filter assembly includes multiple filter cells；Antenna for base station includes antenna substrate and N group antenna oscillator group, N group antenna
Oscillator group is arranged in the first main surface of antenna substrate with array manner, and antenna for base station is set to the top of filter assembly,
And every group of antenna oscillator group is connected by same function separated time with corresponding filter cell.In this way, the present embodiment will
Antenna element is grouped, and the filter cell connection corresponding with one of every group of antenna oscillator group, can reduce filter cell
Quantity, so that mutiple antennas oscillator is shared a filter cell, can simplify the structure of active antenna element, improve integrated level.
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 structural schematic diagram of the application for the active antenna element first embodiment of base station；
Fig. 2 is the disassemblying structure schematic diagram of Fig. 1 embodiment；
Fig. 3 is the structural schematic diagram of part-structure in Fig. 1 embodiment；
Fig. 4 is the structural schematic diagram that antenna substrate deviates from antenna oscillator group side in Fig. 1 embodiment；
Fig. 5 is the structural schematic diagram that substrate deviates from antenna substrate side in Fig. 1 embodiment；
Fig. 6 is structural schematic diagram of the application for the active antenna element second embodiment of base station；
Fig. 7 is structural schematic diagram of the application for the active antenna element 3rd embodiment of base station；
Fig. 8 is structural schematic diagram of the application for the active antenna element fourth embodiment of base station；
Fig. 9 is the structural schematic diagram that filter assembly deviates from antenna for base station side in Fig. 8 embodiment；
Figure 10 be in Fig. 8 embodiment filter assembly close to the structural schematic diagram of antenna for base station side；
Figure 11 is the structural schematic diagram of shell in Fig. 8 embodiment；
Figure 12 be in Figure 11 shell along the diagrammatic cross-section of II-II line；
Figure 13 is the structural schematic diagram of seal groove and the first pilot hole in Figure 11；
Figure 14 is structural schematic diagram of the application for the 5th embodiment of active antenna element of base station；
Figure 15 is the schematic perspective view of handle in Figure 14；
Figure 16 is the schematic top plan view of handle in Figure 14；
Figure 17 is the partial structure diagram of shell in Figure 11 embodiment.
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.
Fig. 1 to Fig. 2 is please referred to, Fig. 1 is structural representation of the application for the active antenna element first embodiment of base station
Figure；Fig. 2 is the disassemblying structure schematic diagram of Fig. 1 embodiment.The present embodiment includes: filtering for the active antenna element 100 of base station
Device assembly 40 and antenna for base station 50, wherein filter assembly 40 includes multiple filter cells 41；Antenna for base station 50 includes antenna
Substrate 11 and N group antenna oscillator group 110, N group antenna oscillator group 110 are arranged in the first main table of antenna substrate 11 with array manner
On face 511, antenna for base station 50 is set to the top of filter assembly 40, and every group of antenna oscillator group 110 is divided with by same function
The corresponding filter cell 41 of line (figure is not marked) connects.
Wherein, antenna substrate 11 is made of insulating material, and insulating materials may include plastic material, inorganic material, oxidation
One or more of aluminium, magnesia, aluminium hydroxide, silica or carbon fiber.Plastic material includes PE
(Polyethylene, polyethylene), PP (Polypropylene, polypropylene), PVC (Polyvinyl Chloride, polychlorostyrene second
Alkene), PET (Polyethylene Terephthalate, polyethylene terephthalate), PS (Polystyrene, polyphenyl
Ethylene), PA (Polyamide, polyamide), PPS (Polyphenylenesulfide, polyphenylene sulfide), PC
(Polycarbonates, poly- carbonic acid resin) perhaps one of PI (Polyimide Film Kapton) or more
Kind.
It is different from the prior art, antenna element is grouped by the present embodiment, and every group of antenna oscillator group passes through same function
Separated time filter cell connection corresponding with one, can reduce the quantity of filter cell, mutiple antennas oscillator is made to share a filter
Wave device unit can simplify the structure of active antenna element, improve integrated level.
Optionally, antenna oscillator group 110 includes M antenna oscillator 12, and antenna for base station 50 further comprises feed Balun
180, the first end of feed Balun 180 is arranged in the first main surface 511 of antenna substrate 11, and the setting of antenna oscillator 12 is being fed
The second end of balun 180, wherein the first end for corresponding to the feed Balun 180 of same antenna oscillator group 110 connects same function point
Line.
Wherein, as shown in figure 3, being provided with feeder line 181 in feed Balun 180, the 511 active separated time of setting in the first main surface
182, one end of feeder line 181 is connect with antenna oscillator 12, and the other end of feeder line 181 is connect with function separated time 182.
Wherein, one end of feeder line 181 is of coupled connections with antenna oscillator 12, i.e., feeder line 181 passes through coupling excitation form
Antenna oscillator 12 is fed.
Further, ground wire is additionally provided in feed Balun 180 (figure is not marked).
Wherein, antenna substrate 11 is provided with through hole 183, and function separated time 182 passes through through hole 183 and corresponding filter list
Member 41 connects.
The present embodiment can be existed feeder line 181 and ground wire setting by modes such as in-mould injection, printing, welding or stickups
In feed Balun 180；The present embodiment function separated time 182 can be arranged by modes such as in-mould injection, printing, welding or stickups
On 511 in the first main surface of antenna substrate 11.
Optionally, antenna for base station 50 includes M first antenna a period of time group (figure is not marked) and M the second antenna array subgroup (figures
Do not mark), first antenna a period of time group includes M first antenna oscillator (figure is not marked), the second the second antenna oscillator of antenna array subgroup M
(figure is not marked), first antenna oscillator forms an oscillator unit 120 with corresponding second antenna oscillator, i.e. oscillator unit 120 is double
Oscillator structure.Wherein, first antenna oscillator is wholely set with the second antenna oscillator；The array manner may include annular array or
Person's rectangular array；Each oscillator unit 120 is arranged in the form of sheets, the shape of oscillator unit 120 can for rectangle, square or
Polygon.
Wherein, feed Balun 180 includes the first feed Balun 184 and the second feed Balun 185, the first feed Balun 184
It is connected and fixed with 185 right-angled intersection of the second feed Balun, to form a feed element 186.Specifically, the first feed Balun
184 one end far from antenna substrate 11 are provided with the first card slot (figure is not marked), and the second feed Balun 185 is close to antenna substrate 11
One end is provided with the second card slot (figure is not marked), and the first card slot and the second card slot are clamped, to realize the first feed Balun 184 and second
Feed Balun 185 is fixedly connected.
Certainly, in other embodiments, the first feed Balun can also be wholely set or two with the second feed Balun
Above feed Balun is fixedly connected to form a feed element.
Wherein, the first feed Balun 184 is provided with lug boss (not shown), antenna base close to the first end of antenna substrate 11
Fluted 187 (as shown in Figure 4) are correspondingly arranged in first main surface 511 of plate 11, groove 187 can run through antenna substrate 11；
Lug boss is embedded in groove 187, feed element 186 is fixedly connected with antenna substrate 11.
The current feed department that first feed Balun 184 is located at 185 two sides of the second feed Balun is provided with lug boss, antenna substrate
It is correspondingly arranged in 11 the first main surface 511 there are two groove 187, to increase the stability of the first feed Balun 184.
In other embodiments, the lug boss similar with the first feed Balun, day also can be set in the second feed Balun
First main surface of line substrate can be spaced the multiple grooves of setting, the continuous groove of "-" type or the continuous groove of cross etc..
Wherein, oscillator unit 120 is provided with cruciform groove 190, and cruciform groove 190 can run through oscillator unit 120；It will
Feed element 186 is in one end of oscillator unit 120 insertion cruciform groove 190, by oscillator unit 120 and feed element
186 are fixedly connected.
It certainly, in other embodiments, can also be in the first feed Balun and/or the second feed Balun close to oscillator unit
Side lug boss is set, oscillator unit can be connected close to the side of feed element with spaced multiple grooves or "-" type
Continuous groove etc..
Wherein, the function separated time 182 of the present embodiment includes the first function separated time 188 and the second function separated time 189；M first antenna
Oscillator is connect with the first function separated time 188 corresponding to the first feed Balun 184, M the second antenna oscillators and the second feed Balun
The connection of second function separated time 189 corresponding to 185.
The oscillator unit 120 of the present embodiment is correspondingly arranged with feed element 186, a first antenna oscillator and one first
Feed Balun 184 connects, and second antenna oscillator is connect with second feed Balun 185.
Specifically, M oscillator unit 120 includes M first antenna oscillator and M the second antenna oscillators, i.e. an oscillator
Unit 120 includes a first antenna oscillator and second antenna oscillator；M first antenna oscillator passes through M first respectively
Feed Balun 184 is connect with a first function separated time 188, M the second antenna oscillators pass through respectively the second feed Balun of M 185 with
One the second function separated time 189 connection.
Antenna oscillator 12 is metal material, and metal material may include one in silver, copper, aluminium, gold, iron, chromium, manganese or titanium
Kind is a variety of.
Optionally, the filter cell 41 of the present embodiment is dielectric filter, and (figure is not for the medium body of dielectric filter
Mark) the multiple flutings of setting, to form multiple cascades or non-cascaded resonant cavity (figure is not marked), such as 8 resonant cavities etc..
Further, the filter assembly 40 of the present embodiment further comprises fixing piece 420 and substrate 424, wherein fixed
Part 420 is fixed on substrate 424 close to the side of antenna substrate 11, and fixing piece 420 is formed with the accommodation groove of an opening (figure is not
Mark), accommodation groove leans on mouth towards antenna substrate 11, and accommodation groove is for accommodating filter cell 41.
Further, the bottom wall of accommodation groove is provided with port of wave filter 422 on substrate 424, is placed in accommodation groove
Filter cell 41 (is schemed by port of wave filter 422 with power amplifier unit of the substrate 424 away from 41 side of filter cell is set to
Do not show) it is attached (for details, reference can be made to following embodiments).
Optionally, the filter assembly 40 of the present embodiment includes N number of filter cell 41, with N group antenna oscillator group 120 1
One is correspondingly connected with, and N number of filter cell 41 includes P group filter cell group (figure is not marked), every group of filter cell group one
Processing or installation.Wherein, P can be 2,4,6 etc..Wherein, every group of filter cell group can pass through screw, cartridge and substrate
424 is fixed, or is fixed by the modes power board such as grafting.
In this way, the complexity that N number of filter cell 41 is processed or installed one by one can be not only reduced, and
And can be avoided N number of filter cell 41 and be integrally machined or install, one of filter cell 41 is damaged, other filters
The problem of unit 41 can only be scrapped.
Optionally, the N of the present embodiment is 16, M 3, i.e. 3 antenna oscillators 170 are an antenna oscillator group 110, one
Oscillator unit 120 includes two groups of antenna oscillator groups 110, and the present embodiment includes 16 antenna oscillator groups 110, i.e. 48 antenna oscillators
170, i.e. 24 oscillator units 120；The present embodiment includes 24 feed elements 186, i.e. 24 the first feed Baluns 184 and 24
Second feed Balun 185；The present embodiment includes 8 the first function separated times 188 and 8 the second function separated times 189, one group of antenna oscillator group
3 antenna oscillators 170 in 110 pass through 3 the first feed Baluns 184 or 3 two feed Baluns 185 and first function respectively
Separated time 188 or the second function separated time 189 connection；The present embodiment includes 16 filter cells, 41,8 the first function separated times 188
And 8 the second function separated time 189 and 16 filter cells 41 connect one to one.In other embodiments, N can also be 20,
26 etc., M can also be 2,4,6 etc..
Further, the formation in the first main surface 511 of antenna substrate 11 has a plurality of fin 521, and part fin 521 is set
It sets in the periphery of the first main surface 511, the interior zone within periphery is arranged in part fin 521, with interval multiple groups oscillator list
Member 120.
Wherein, it is arranged on the fin 521 of 511 interior zone of the first main surface and is provided with mounting hole 522, on substrate 424
Be correspondingly arranged on mounting post 523, mounting hole (figure do not mark) be arranged inside, by the installation parts such as screw be embedded in mounting hole 522 and
Mounting hole in mounting post 523, antenna substrate 11 and substrate 424 is fixed.
Further, as shown in figure 5, substrate 424 is provided with fin 524 away from the periphery of 11 side of antenna substrate, in base
When plate 424 is installed with the power board (not shown) being disposed below, fin 524 is fastened on the periphery of power board, to exist to setting
The component (not shown) of power board is electromagnetically shielded.
Optionally, antenna for base station 50 may further include reflecting layer (not shown), and reflecting layer is attached at antenna substrate 11
With the first main surface 111 in the second main surface 512 of setting, i.e., reflecting layer 13 can pass through thermoprint, printing, coating, electricity
The modes such as plating or stickup are attached in the second main surface 512, and the second main surface 512 and the first main surface 511 are backwards to setting.This is anti-
The material for penetrating layer may include one or more of silver, copper, aluminium, gold, iron, chromium, manganese or titanium；Specifically, the present embodiment
Reflecting layer 13 material be aluminium.
Wherein, the distance between antenna oscillator 12 and reflecting layer can be 1/8th of the centre frequency of antenna for base station 50
Wavelength；/ 8th wavelength is theoretical value, and the actual range between antenna oscillator 12 and reflecting layer can be in 1/8th waves
Long left and right, can satisfy corresponding radiance.
Reflecting layer is used to aerial signal being gathered in corresponding antenna oscillator 12, to enhance the reception energy of antenna for base station 50
Power；Reflecting layer can be also used for stopping or shield the interference signal for being located at 11 back side of antenna substrate, to avoid antenna for base station 50
It is interfered in receiving antenna signal.
The application it is further proposed that second embodiment the active antenna element for base station, as shown in fig. 6, the present embodiment
Active antenna element 100 further comprises director 60, and director 60 is set in the first main surface 511 of antenna substrate 11,
And it is correspondingly arranged with antenna oscillator 12.
Director 60 is arranged on insulating substrate 61, and insulating substrate 61 is fixedly connected with antenna substrate 11.
The present embodiment is that antenna oscillator 12 is correspondingly arranged director 60, can increase and concentrate aerial electromagnetic wave,
To increase the signal gain of antenna oscillator 12.
The application it is further proposed that 3rd embodiment the active antenna element for base station, as shown in fig. 7, the present embodiment
The filter cell 41 of active antenna element 100 is cavity body filter, the knot of structure and the cavity body filter of following embodiments
Structure is similar, reference can be made to following embodiments.
N number of filter cell 41 includes P group filter cell group (scheme do not mark), every group of filter cell group be integrally machined or
Installation.Wherein, P can be 2,4,6 etc..
In this way, the complexity that N number of filter cell 41 is processed or installed one by one can be not only reduced, and
And can be avoided N number of filter cell 41 and be integrally machined or install, one of filter cell 41 is damaged, other filters
The problem of unit 41 can only be scrapped.
The application is it is further proposed that the structure of the active antenna element first embodiment for base station of fourth embodiment is shown
It is intended to, as seen in figs. 8-10, the present embodiment includes shell 20, power board 30 and filter for the active antenna element 10 of base station
Component 40, shell 20 define accommodating cavity (not shown) open at one end；Power board 30 is set in accommodating cavity；Filter assembly 40
It is set in accommodating cavity, and is covered on the top of power board 30, to be electromagnetically shielded to power board 30.
Wherein, power board 30 is attached with filter assembly 40, and power board 30 is used to carry out power to radiofrequency signal to put
Greatly, and by amplified radio signal transmission to filter assembly 40, filter assembly 40 is used for from amplified radiofrequency signal
The middle radiofrequency signal for obtaining specific frequency or the radiofrequency signal other than specific frequency.
It is different from the prior art, the present embodiment can be realized by filter assembly to the electromagnetic shielding of power board, and nothing
Shielding case need to be additionally set, therefore the structure of active antenna element can be simplified, improve the integrated level of active antenna element.
Optionally, the filter assembly 40 of the present embodiment is provided with far from the side of power board 30 with array manner arrangement
Multiple filter cells 41, the power amplifier unit 31 arranged with array manner is provided on power board 30, and each power amplifier unit 31 connects
It is connected to corresponding filter cell 41.
Wherein, component (not shown) is provided on each power amplifier unit 31, component can (figure be not by conductive column
Show) or cable (not shown) and its filter cell 31 for being correspondingly arranged of top be attached；Conductive column or cable
(it can scheme from filter cell 41 close to or far from the side of power amplifier unit 31 with the input/output port of filter cell 41
Do not show) connection.
Further, the present embodiment power board 30 is provided with primary input output port 32；The power board 30 of the present embodiment
Area is greater than the area of filter assembly 40, and the primary input output port 32 of power board 30 is arranged outside filter assembly 40.
The power amplifier unit 31 of the present embodiment is arranged in a one-to-one correspondence with filter cell 41.
Further, the shell 20 of the present embodiment is provided with cooling fin 21 away from the side of power board 30；Because of power board 30
More heat can be generated when work, the heat of 30 guide housings 20 of power board can shed by cooling fin 21.
The filter assembly 40 of the present embodiment has been provided projectingly baffle assembly 42, baffle assembly 42 close to 30 side of power board
It is used to form bit-avoiding slot 43, bit-avoiding slot 43 is used to accommodate the component on power board 30.
Wherein, baffle assembly 42 can be integrally formed with filter assembly 40；Baffle assembly 42 can pass through punching press, CNC
Or the technological formings such as injection molding.
Wherein, baffle assembly 42 includes that filter assembly 40 is arranged in close to the first partition of 30 side periphery of power board
421 and the multiple second partitions 422 and third partition 422 that are arranged in first partition 421；The outer surface of first partition 421 with
The side of filter assembly 40 is concordant, and the inner surface of first partition 421 is connect with second partition 422 and third partition 423, third
Partition 423 is divided equally and perpendicular to second partition 422, and third partition 423 is vertical with a side of first partition 421, so as to be formed
Bit-avoiding slot 43 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, a bit-avoiding slot can accommodate two or more on power amplifier unit
Component.
First partition 421, second partition 422 and third partition 423 close to power board 30 an end face so that filtering
Device assembly 40 can be smoothly mounted on power board 30, can reduce the electromagnetic exposure of power board 30, to improve to power board 30
Electromagnetic shielding performance.
The present embodiment filter assembly 40 includes 4 groups of filter assemblies 40, and every group of filter assembly 40 includes in two column rows
16 filter cells 41 of cloth, baffle assembly 42 form 16 bit-avoiding slots close to 30 side of power board in filter assembly 40
43, to accommodate the component on 16 power amplifier units 31 respectively.In other embodiments, filter assembly, filter cell, keep away position
Slot and power amplifier unit are in quantity.
Wherein, which includes power amplifier.
The filter cell 41 of the present embodiment is cavity body filter, and multiple cavities filter shares a substrate (not shown).
Substrate is metal substrate, which can be the metals such as copper or aluminium, or is alloy etc..
Wherein, filter cell 41 includes multiple cascade resonant cavities 411 open at one end, is provided in resonant cavity 411 humorous
Bar (not shown) of shaking and tuning screw (not shown), each resonant cavity 411 are constituted with the intracorporal resonant rod of its chamber and tuning screw
One resonator；It is connected between cascade two resonant cavities 411 by window (not shown), cascade two resonant cavities 411 pass through
Window carries out signal transmission；First order resonant cavity 411 and afterbody resonant cavity 411 are arranged at edge, are convenient for and input and output
Port 412 connects.
The filter cell 41 of the present embodiment is provided with 10 resonant cavities, 411,10 resonant cavities 411 in three rows or three column rows
Cloth, every row or each column resonant cavity 411 and the resonant cavity 411 of adjacent rows or adjacent column are staggered.
The filter assembly 40 of the present embodiment includes 4 substrates, and the filter cell 41 on each substrate is in two rows or two
Column are arranged, and the resonant cavity 411 of the filter cell 41 in every row or each column is arranged identical.
Certainly, in other embodiments, the quantity of substrate, the quantity of substrate upper filter unit, filter list are not limited
The quantity and arrangement mode of resonant cavity in member；It is whether identical that multiple filter cell structures are not limited yet.
Wherein, the opening of resonant cavity 411 is towards antenna for base station 50.
Wherein, the filter cell 41 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..
The antenna oscillator of the present embodiment is arranged in a one-to-one correspondence with filter cell, in other embodiments, antenna oscillator with
Filter cell can also using many-one or it is one-to-many by the way of be arranged.
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 active antenna element of the application is not traditional antenna, by the Radio Frequency Subsystem (filter of such as the application
Wave device assembly 40, power board 30) and antenna for base station 50 organically combine；That is active antenna element is by the feedback of traditional antenna
Electric network carries out digitized processing.The radio frequency unit and antenna separation design of traditional base station, and active antenna element will be active
Radio frequency unit (filter assembly 40, power board 30) and antenna (antenna for base station 50) unification design.Active antenna element will be remote
The unification of end-fire frequency module (Remote Radio Unit, RRU) unit and antenna designs so that the power amplification of RRU unit and
Reception is sufficiently utilized.RRU unit and antenna are integrated in an antenna house by the active antenna element of the application, are externally mentioned
For prevention at radio-frequency port, which is used to send radiofrequency signal to export-oriented vector network analyzer.
In another embodiment, as shown in Figure 11 to 14, shell 20 includes 211, two the first side walls 230 and two of bottom wall
A second sidewall 240；Wherein, two the first side walls 230 connect with the both ends that bottom wall 211 is oppositely arranged and pass through with bottom wall 211
Extrusion process is integrally formed；The present embodiment can make two second side by techniques such as die cast or extrusion formings respectively
Two second sidewalls 240, are then spliced to the other both ends of the not set the first side wall 230 of bottom wall 211 by wall 240, and with first
Side wall 230 is fixedly connected.The present embodiment can use Friction Stir Welding mode by second sidewall 240 and bottom wall 211 and first
Side wall 230 is fixed.
It specifically, as shown in figure 17, can be in bottom wall 211 and the first side wall 230 and the path of welding of second sidewall 240
Knife structure 712 is provided in the end 711；When carrying out friction welding, cutter respectively with bottom wall 211 and second sidewall 240, the first side
Wall 230 and the friction of second sidewall 240 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 20, and after liquid cooled and solidified, knife structure 712 and its interior can be gone out with mill off
Solid.
It is connected in obtuse angle between the first side wall 230 and bottom wall 211 of the present embodiment, between second sidewall 240 and bottom wall 211
Vertical connection.
Wherein, the obtuse angle range between the first side wall 230 and bottom wall 211 can be 95-120 °, which specifically can be
95 °, 98 °, 110 °, 112 °, 115 °, 118 ° and 120 ° etc..
Wherein, close to accommodating cavity side, chamfered transition is connect the first side wall 230 with 211 junction of bottom wall；The first side wall
230 connect away from the side of accommodating cavity in no transition with 211 junction of bottom wall.
Optionally, the end face that both bottom wall 211 and the first side wall 230 are disposed adjacent with second sidewall 240 is stepped to be set
It sets, second sidewall 240 is set on the ladder, and the outer surface of second sidewall 240 is coplanar with the outmost surface of the ladder end face,
The top surface of second sidewall 240 is coplanar with the top surface of the first side wall 230, to form smooth surface of shell, convenient for shell 20 and its
The assembling of its component.
By the above-mentioned means, second sidewall 240 is enabled to abut with the ladder end face, second sidewall 240 can be prevented
It is slided into accommodating cavity, improves the stability of shell 20.
The first side wall 230 of shell 20 is provided with the boss 250 protruded towards accommodating cavity far from 211 one end of bottom wall, in turn
Define support end face 213 of the width greater than the thickness of the first side wall 230.It is separate that antenna substrate 11 is supported in the first side wall 230
On the support end face 213 of 211 one end of bottom wall, and then cover accommodating cavity.
The first side wall 230 of the present embodiment is provided with the boss 250 protruded towards accommodating cavity far from 211 one end of bottom wall,
When the size (length) of shell 20 is fixed, boss 250 is towards accommodating cavity, between two the first side walls 230 being oppositely arranged
Distance become larger, be capable of increasing the use space of accommodating cavity.
Wherein, support end face 213 is divided into the first stage body and the second stage body, First on the direction towards bottom wall 211
Body is greater than the second stage body along the cross-sectional width of 20 length direction of shell along the cross-sectional width of 20 length direction of shell.
Support is further provided with the first pilot hole 214 and seal groove 215 on end face 213, wherein the first pilot hole 214
Depth is greater than the height of the first stage body, and extends in the second stage body；The depth of seal groove 215 less than the first stage body height,
So that the first pilot hole 214 and the setting of seal groove 215 are on support end face 213.
Sealing element, such as waterproof adhesive tape are embedded in seal groove 215；Antenna substrate 11 is by being inserted in the first pilot hole 214
Interior fastener is pressed on sealing element, i.e. the first pilot hole 214 is for planting fastener, so that antenna substrate 11 is fixed on
It supports on end face 213, antenna substrate 11 is pressed on sealing element at this time.
Seal groove 215 includes that the length direction D1 along support end face 213 extends and be located at the of 214 two sides of the first pilot hole
It one slot section 216 and is set around the periphery of the first pilot hole 214 and connects the second slot section of two adjacent the first slot sections 216
217, the second slot section 217 can be located at the first pilot hole 214 close to the side of accommodating cavity, i.e. the first pilot hole 214 is located at sealing
The outside of slot 215 can be improved the waterproofness of active antenna element.
Specifically, support end face 213 is arranged in rectangular ring, and linearly setting, the second slot section 217 are in the first slot section 216
Arc setting.Wherein, the most short distance between the extended line of the middle separated time 218 of the first slot section 216 and the center of the first pilot hole 214
Groove width from 1/6th of the groove width less than the first slot section 216, first slot sections 216 can be with the groove width phase of the second slot section 217
Together.
It is supported in the present embodiment and is provided with arc-shaped the second slot section 217 and the between each first slot section 216 of end face 213
One pilot hole 214 is equivalent to compared to continuous whole straight-line groove section is arranged in support end face 213 by whole straight-line groove section
Multiple the first shorter slot sections 216 are divided into, thus keep the seal loading being embedded in seal groove 215 more uniform, it is fixed
Property is stronger, and waterproof performance is more preferable.
Wherein, the extended line of the middle separated time 218 of the first slot section 216 can pass through the center of the first pilot hole 214.
The above structure of second sidewall 240 is identical as the first side wall 230, does not repeat here.
Bottom wall 211 is integrally formed far from accommodating cavity side and is provided with fin 219, i.e., bottom wall 511 and fin 219 are integrally formed
Setting；Pilot hole 220 is provided on bottom wall 211.Wherein, the depth of pilot hole 220 is greater than the thickness of bottom wall 211, and extends to
In fin 219.
The pilot hole 220 of the present embodiment extends in fin 219, therefore pilot hole 220 guarantees without punching bottom wall 211
The leakproofness of shell 20 avoids the signal in shell 20 from revealing and be interfered.
Fin 219 can be in the form of a column setting, and the axis direction of fin 219 is parallel with bottom wall 211.
The thickness of cooling fin 21 can be less than the thickness of fin 219.
Fin 219 is arc-shaped setting perpendicular to the cross section of axis direction, and at least partly cooling fin 21 is set to fin
At 219 arc top position.
Wherein, the quantity of fin 219 can be multiple, and be arranged along the arragement direction interval along cooling fin 21.Its remaining part
Dispersion backing 21 is set in the interval region of fin 219.
In other embodiments, whole cooling fins 55 are all set at the arc top position of fin 519, or are arranged at intervals at
Between fin 519.
Active antenna element further comprises reinforcing frame 54, and reinforcing frame 54 is used to the pressing of antenna substrate 11 being fixed on support
On end face 213, i.e., when antenna substrate 11 is supported on support end face 213, reinforcing frame 54 presses antenna substrate 11, with
So that antenna substrate 11 is fixed on support end face 213.
The active antenna element of the present embodiment is provided with reinforcing frame 54, for support end to be fixed in the pressing of antenna substrate 11
On face 213, the intensity that antenna substrate 11 is fixed on support end face 213 can be improved.
Reinforcing frame 54 includes the first framework 241 and second framework 242 of L-shaped connection, wherein the first framework 241 is pressed on
Side of the antenna substrate 11 far from support end face 213, second framework 242 are set to side of the side wall 212 far from accommodating cavity.Reinforce
The pressing of antenna substrate 11 is fixed on support end face 213 by frame 54 by the first framework 241, and reinforcing frame 54 passes through second framework
242 realize limit function.
It can be respectively arranged with the first pilot hole 214 and the second pilot hole 243 in support end face 213 and the first framework 241,
That is support end face 213 is provided with multiple first pilot holes 214, and multiple second dresses are provided on the corresponding position of the first framework 241
Distribution 243, the quantity of multiple first pilot holes 214 are identical as the quantity of the second pilot hole 243.
First framework 241 and support end face 213 are further by being inserted in the first pilot hole 214 and the second pilot hole 243
Interior fastener is fixed to one another；When the second pilot hole 243 and corresponding first pilot hole 214 are aligned, fastener is for fixing
Reinforcing frame 54, i.e., be fixed on support end face 213 by the first framework 241 and support end face 213；The fastener can be screw
Nail, the first pilot hole 214 and the second pilot hole 243 all can be screw holes.Wherein, it supports end face 213 and reinforcing frame 54 is in respectively
Rectangular ring setting.
In another embodiment, as seen in figs. 15-17, the active antenna element of the present embodiment further comprises handle 27.
Handle 27 includes grip part 271 and the interconnecting piece 272 for connecting grip part 271 and shell 20, and wherein interconnecting piece 272 can pass through
Welding manner is fixed on the housing 20, to connect grip part 271 and shell 20.Grip part 271 is provided with far from the side of shell
With the fitting surface 273 of external fixed column (not shown) form fit；Through hole 274 is provided on grip part 271, to allow outside
Fixed column passes through through hole 274, and then handle 27 is fixed in external fixed column.External fixed column can be the fixation of base station
Column, for placing active antenna element；I.e. when handle 27 is fixed in external fixed column, active antenna element is mounted on outside
In fixed column.
The quantity of interconnecting piece 272 can be two, and two interconnecting pieces 272 are set along the length direction interval of grip part 271
It sets.Spacing between two interconnecting pieces 272, which is arranged to manpower, can hold grip part 271 between two interconnecting pieces 272, so that
Manpower can be easy to hold grip part 271.
The quantity of through hole 274 can be two, i.e., two through holes 274 are arranged on grip part 271, and two pass through
Through-hole 274 is arranged along the length direction interval of grip part 271.
The arc-shaped setting of fitting surface 273, in order to which external fixed column passes through through hole 274.The both ends of grip part 271 are arranged
There are two connecting hole 275, two connecting holes 275 can be used for mutually fixing with sunshading board (not shown).
Wherein, the width and/or thickness of 273 region of fitting surface can be greater than grip part 271 and connect with interconnecting piece 272
The width and/or thickness of position region, such as the width of 273 region of fitting surface are greater than grip part 271 and interconnecting piece
The width of 272 link position regions；Or the thickness of 273 location of fitting surface is greater than grip part 221 and interconnecting piece 272 connects
Connect the thickness of position region.Grip part 271 is arranged fluted 276 far from the side of shell 20, and through hole 274 is located at groove
276 bottom.
The grip part 271 of the present embodiment is provided with the fitting surface with external fixed column form fit far from the side of shell 20
273, through hole 274 is provided on grip part 271, external fixed column passes through through hole 274, handle 27 is fixed on external solid
On fixed column, so that active antenna element can be hung in external fixed column, the usage experience of user is improved.
The application further comprises a kind of antenna element for base station, which is passive antenna comprising shell
Body, antenna for base station and reinforcing frame, the shell are the revealed shell 20 of above-described embodiment, and antenna for base station is taken off by above-described embodiment
The antenna for base station 50 shown, reinforcing frame are the revealed reinforcing frame 54 of above-described embodiment, and details are not described herein.
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 (12)
1. a kind of active antenna element for base station, which is characterized in that the active antenna element includes:
Filter assembly, including multiple filter cells；
Antenna for base station, including antenna substrate and N group antenna oscillator group, the N group antenna oscillator group are arranged in institute with array manner
It states in the first main surface of antenna substrate, the antenna for base station is set to the top of the filter assembly, and day described in every group
Linear oscillator group is connected by same function separated time with the corresponding filter cell.
2. active antenna element according to claim 1, which is characterized in that the antenna oscillator group includes M antenna vibration
Son, the antenna for base station further comprise feed Balun, and the first end of the feed Balun is arranged in first main surface,
The second end of the feed Balun is arranged in the antenna oscillator, wherein corresponding to the feed of the same antenna oscillator group
The first end of balun connects same function separated time.
3. active antenna element according to claim 2, which is characterized in that be provided with feeder line, institute in the feed Balun
State and be provided with the function separated time in the first main surface, one end of the feeder line is connect with the antenna oscillator, the feeder line it is another
One end is connect with the function separated time.
4. active antenna element according to claim 3, which is characterized in that the antenna substrate is provided with through hole, institute
It states function separated time and is connected by the through hole with the corresponding filter cell.
5. active antenna element according to claim 3, which is characterized in that the feed Balun includes the first feed Balun
And second feed Balun, first feed Balun are connected and fixed with the second feed Balun right-angled intersection, to form one
Feed element, and first feed Balun is provided with lug boss, the antenna substrate close to the first end of the antenna substrate
The first main surface be correspondingly arranged fluted, the lug boss is embedded in the groove, by the feed element and institute
Antenna substrate is stated to be fixedly connected.
6. active antenna element according to claim 5, which is characterized in that the antenna for base station includes first antenna a period of time
Group and the second antenna array subgroup, first antenna a period of time group include M first antenna oscillator, the second antenna array subgroup packet
M the second antenna oscillators are included, the first antenna oscillator forms an oscillator unit, the oscillator with corresponding second oscillator
Unit is correspondingly arranged with the feed element, first corresponding to the M first antenna oscillators and first feed Balun
The connection of function separated time, M second antenna oscillators are connect with the second function separated time corresponding to second feed Balun.
7. active antenna element according to claim 6, which is characterized in that the oscillator unit is provided with cross recessed
The feed element is embedded in the cruciform groove, by the oscillator unit by slot close to one end of the oscillator unit
It is fixed with the feed element.
8. active antenna element according to claim 2, which is characterized in that the M is 3, N 16.
9. active antenna element according to claim 1, which is characterized in that the active antenna element further comprises function
Plate is put, the filter assembly is covered on the top of the power board, and the filter assembly further comprises port of wave filter,
The port of wave filter is connect with the power board.
10. active antenna element according to claim 2, which is characterized in that the active antenna element further comprises
Director, the director are set in the first main surface of the antenna substrate, and are correspondingly arranged with the antenna oscillator.
11. active antenna element according to claim 1, which is characterized in that the filter assembly includes N number of filter
Wave device unit connects one to one with the N group antenna oscillator group, and N number of filter cell includes P group filter cell
Group, filter cell group described in every group are integrally machined or install.
12. a kind of antenna element for base station, which is characterized in that the antenna element includes:
Shell, the shell includes bottom wall and the side wall that connect with the bottom wall, to define accommodating cavity open at one end；
Antenna for base station, the antenna for base station are included antenna substrate and are arranged in the first master of the antenna substrate with array manner
Mutiple antennas oscillator on surface, wherein the antenna substrate is supported in support end face of the side wall far from described bottom wall one end
On, and then cover the accommodating cavity；
Reinforcing frame, the reinforcing frame are used to antenna substrate pressing being fixed on the support end face.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2019206557765 | 2019-05-08 | ||
| CN201920655776 | 2019-05-08 |
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| CN110323556A true CN110323556A (en) | 2019-10-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921071617.7U Active CN210723342U (en) | 2019-05-08 | 2019-07-09 | Active antenna unit for base station and antenna unit |
| CN201910616658.8A Pending CN110323556A (en) | 2019-05-08 | 2019-07-09 | A kind of active antenna element and antenna element for base station |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201921071617.7U Active CN210723342U (en) | 2019-05-08 | 2019-07-09 | Active antenna unit for base station and antenna unit |
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| CN111048904A (en) * | 2019-12-10 | 2020-04-21 | 瑞声精密制造科技(常州)有限公司 | Antenna with a shield |
| CN111613868A (en) * | 2020-05-25 | 2020-09-01 | 瑞声精密制造科技(常州)有限公司 | Antenna module |
| CN113241515A (en) * | 2021-04-02 | 2021-08-10 | 深圳市飞荣达科技股份有限公司 | Communication base station antenna |
| CN114122702A (en) * | 2021-11-18 | 2022-03-01 | 中信科移动通信技术股份有限公司 | AFU antenna |
| CN115020958A (en) * | 2022-06-30 | 2022-09-06 | 中国工程物理研究院电子工程研究所 | Integrated low-profile tile type digital array antenna |
| EP4087057A4 (en) * | 2019-12-31 | 2023-01-18 | Comba Telecom Technology (Guangzhou) Limited | Array antenna |
| WO2024114044A1 (en) * | 2022-11-28 | 2024-06-06 | 华为技术有限公司 | Housing, energy processing device, and base station antenna |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN210723342U (en) * | 2019-05-08 | 2020-06-09 | 深圳市大富科技股份有限公司 | Active antenna unit for base station and antenna unit |
| EP3979415A4 (en) | 2020-06-10 | 2023-01-25 | Rosenberger Technologies Co., Ltd. | 5g antenna element and 5g antenna |
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| CN113241515A (en) * | 2021-04-02 | 2021-08-10 | 深圳市飞荣达科技股份有限公司 | Communication base station antenna |
| CN113241515B (en) * | 2021-04-02 | 2022-06-14 | 深圳市飞荣达科技股份有限公司 | Communication base station antenna |
| CN114122702A (en) * | 2021-11-18 | 2022-03-01 | 中信科移动通信技术股份有限公司 | AFU antenna |
| CN114122702B (en) * | 2021-11-18 | 2023-11-14 | 中信科移动通信技术股份有限公司 | AFU antenna |
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