CN110323563A - 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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- CN110323563A CN110323563A CN201910616660.5A CN201910616660A CN110323563A CN 110323563 A CN110323563 A CN 110323563A CN 201910616660 A CN201910616660 A CN 201910616660A CN 110323563 A CN110323563 A CN 110323563A
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- antenna
- base station
- antenna element
- filter
- power board
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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
- 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
- H01Q1/52—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
- H01Q19/10—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
-
- 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
-
- 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)
- Details 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: shell, power board and filter assembly, and shell defines accommodating cavity open at one end；Power board is set in accommodating cavity；Filter assembly is set in accommodating cavity, and is covered on the top of power board, to be electromagnetically shielded to power board.In this way, it can be realized by filter assembly to the electromagnetic shielding of power board, without shielding case is additionally arranged, therefore the structure of active antenna element can be simplified, improve the integrated level of active antenna element.
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 5G is communicated, and is proposed to entire communication system architecture more severe
The technical requirements at quarter, i.e., will realize efficient, quick, high capacity communication, system module accomplish again Highgrade integration, miniaturization,
Lightweight.
Power amplifier is the important radio frequency component of antenna for base station, it can to radiofrequency signal caused by oscillating circuit into
Row amplification, after obtaining enough radio-frequency powers, is gone out by base station antenna radiation.
Present inventor has found in long-term R&D work, in the prior art, by setting power amplifier
Power board periphery shielding case is set, to realize to the electromagnetic shielding of power amplifier, but this structure integrated level is not high, cannot
Meet 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: shell, and the shell defines accommodating cavity open at one end；Power board is set in the accommodating cavity；Filtering
Device assembly is set in the accommodating cavity, and is covered on the top of the power board, to carry out electromagnetic screen to the power board
It covers.
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 shell, power board and filter group for the active antenna element of base station
Part, shell define accommodating cavity open at one end；Power board is set in accommodating cavity；Filter assembly is set in accommodating cavity, and
It is covered on the top of power board, to be electromagnetically shielded to power board.In this way, the embodiment of the present application can pass through filter
Wave device assembly is realized to the electromagnetic shielding of power board, without shielding case is additionally arranged, therefore can simplify active antenna element
Structure, improve the integrated level of active antenna element, can satisfy 5G communication system integrated level requirement.
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 be in Fig. 1 embodiment filter assembly close to the structural schematic diagram of power board side；
Fig. 4 is structural representation of the application for the filter assembly in the active antenna element second embodiment of base station
Figure；
Fig. 5 is structural schematic diagram of the application for the active antenna element 3rd embodiment of base station；
Fig. 6 is the structural schematic diagram of antenna for base station in Fig. 5；
Fig. 7 be in Fig. 6 antenna for base station along the diagrammatic cross-section of I-I line；
Fig. 8 is diagrammatic cross-section of the application for antenna for base station in the active antenna element fourth embodiment of base station；
Fig. 9 is diagrammatic cross-section of the application for antenna for base station in the 5th embodiment of active antenna element of base station；
Figure 10 is the structural schematic diagram of shell in the active antenna element for base station of the application 3rd embodiment；
Figure 11 be in Figure 10 shell along the diagrammatic cross-section of II-II line；
Figure 12 is the structural schematic diagram of seal groove and the first pilot hole in Figure 10；
Figure 13 is the structural schematic diagram of reinforcing frame in Figure 10；
Figure 14 is structural schematic diagram of the application for the active antenna element sixth embodiment 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 10.
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.
The active antenna element of the application is not traditional antenna, by Radio Frequency Subsystem (such as the application
Filter assembly, power amplifier components) and antenna for base station organically combine；That is active antenna element is by the feed of traditional antenna
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, power amplifier components) and antenna (antenna for base station) unification design.Active antenna element is by far end radio frequency
The unification of module (Remote Radio Unit, RRU) unit and antenna designs, so that the power amplification and reception of RRU unit are filled
Divide and is utilized.RRU unit and antenna are integrated in an antenna house by the active antenna element of the application, externally provide radio frequency
Port, the prevention at radio-frequency port are used to send radiofrequency signal to export-oriented vector network analyzer.
Fig. 1 is structural representation of the application for the active antenna element first embodiment of base station referring to FIG. 1 to FIG. 4,
Figure；Fig. 2 is the disassemblying structure schematic diagram of Fig. 1 embodiment；Fig. 3 be in Fig. 1 embodiment filter assembly close to power board side
Structural schematic diagram.Active antenna element 10 of the present embodiment for base station includes shell 20, power board 30 and filter assembly 40,
Shell 20 defines accommodating cavity (not shown) open at one end；Power board 30 is set in accommodating cavity；Filter assembly 40 is set to
In accommodating cavity, and it 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.
Further, the present embodiment further includes antenna for base station 50, antenna for base station 50 for the active antenna element 10 of base station
It is covered on the top of filter assembly 40, and the antenna oscillator (figure is not marked) of antenna for base station 50 is connected to the filter of filter assembly 40
Wave device unit 41 for the filtered emission of radio frequency signals of filter cell 41 to be gone out, or receives radio signal transmission and gives
Filter cell 41 carries out clutter and filters out.
In another embodiment, as shown in figure 4, filter cell 41 is cavity body filter, multiple cavities filter is shared
One 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.
In another embodiment, filter cell can also be that dielectric filter, substrate are ceramic substrate.On ceramic substrate
Resonant cavity is set, and resonant cavity and its ceramic sidewalls are formed with resonator, can be led between cascade or cross-linked resonant cavity
Cross window connection.In other embodiments, above-mentioned filter cell can also be replaced using other filter cells, it is different here
One repeats.
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 Figures 5 to 7, antenna for base station 50 includes antenna substrate 11 and mutiple antennas oscillator
12, wherein antenna substrate 11 is made of insulating material, and insulating materials may include plastic material, inorganic material, aluminium oxide, oxidation
One or more of magnesium, aluminium hydroxide, silica or carbon fiber.
Mutiple antennas oscillator 12 is arranged in the first main surface 511 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 511,
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 511；Since antenna oscillator 12 is attached in the first main surface 511, 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 50.
The assembly technology of the antenna for base station 50 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 511, to obtain above-mentioned antenna for base station 50.
The antenna for base station 50 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 511, without additional setting buckle, is reduced element, is reduced cost；Furthermore antenna for base station
50 assembly technology is simple, improves production efficiency.
The antenna for base station 50 of the application may further include reflecting layer 13, and reflecting layer 13 is attached at antenna substrate 11 and
One main surface 111 in the second main surface 512 of setting, i.e., reflecting layer 13 can by thermoprint, printing, coating, plating or
The modes such as 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.The reflecting layer
13 material may include one or more of silver, copper, aluminium, gold, iron, chromium, manganese or titanium；Specifically, the present embodiment
The material in reflecting layer 13 is aluminium.
Wherein, the distance between antenna oscillator 12 and reflecting layer 13 can for antenna for base station 50 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 50
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 50 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.
In another embodiment, as shown in figure 8, the antenna for base station 50 of the present embodiment further comprises quantity and antenna oscillator
12 corresponding mutiple antennas ports 14, the i.e. quantity of mutiple antennas port 14 are identical as the quantity of mutiple antennas oscillator 12；Each
Antenna port 14 is connected with corresponding antenna oscillator 12 respectively.
Mutiple antennas port 14 can be set in the second main surface 512, and antenna port 14 is in the first main surface 511
It projects least partially overlapped with antenna oscillator 12；Projection and antenna of the present embodiment antenna port 14 in the first main surface 511
Oscillator 12 is completely overlapped.Quantity multiple through holes 113 corresponding with antenna port 14 are provided on antenna substrate 11, i.e., it is multiple to pass through
The quantity of through-hole 113 is identical as the quantity of mutiple antennas port 14；First main surface of the connection antenna substrate 11 of through hole 113
511 and second main surface 512.
Antenna for base station 50 further comprises the multiple conductive columns 114 corresponded respectively in through hole 113, and conductive column 114 leans on
The end face of the side of nearly antenna oscillator 12 is concordant with the first main surface 511 of antenna substrate 11, and antenna oscillator 12 is attached at conduction
On the end face of 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 multiple filter ends with the filter assembly 40 for being located at the lower section of the second main surface 512 respectively of mutiple antennas port 14
Mouth 401 is correspondingly connected with；I.e. filter assembly 40 is arranged in below the second main surface 512 of antenna substrate 11, filter assembly 20
Including multiple port of wave filter 401, the quantity of multiple port of wave filter 401 is identical as the quantity of mutiple antennas port 14, so that
Each antenna port 14 is connected with corresponding port of wave filter 401 respectively.
Wherein, antenna port 14 and port of wave filter 401 are covered on filter assembly 40, antenna port 14 with it is corresponding
401 alignment therewith of port of wave filter patches.That is the position of antenna port 14 and the position of port of wave filter 401 is correspondingly arranged,
Antenna for base station 50 is covered on filter assembly 40, and antenna port 14 can realize that contraposition connects with corresponding port of wave filter 21
It inserts, antenna port 14 is connected with corresponding port of wave filter 401 at this time.
The antenna port 14 of the present embodiment realizes that contraposition patches with corresponding port of wave filter 401, antenna for base station 50 and filter
Wave device assembly 40 realizes connection without additional setting cable, avoids signal interference, saves cost.
In another embodiment, as shown in figure 9, antenna for base station 50 further comprise be attached in the first main surface 511 and
It is real with identical material and technique for connecting the feeder line 15 of antenna port 14 and antenna oscillator 12, feeder line 15 and antenna oscillator 12
It is existing, therefore antenna oscillator 12 and feeder line 15 can be attached to simultaneously in the first main surface 511.
Mutiple antennas port 14 can be set in the second main surface 512, 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 50 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 511 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.
In other embodiments, active antenna element can further include director, and director is set to antenna base
In first main surface of plate, and it is correspondingly arranged with antenna oscillator；Director is arranged on insulating substrate, insulating substrate and antenna base
Plate is fixedly connected；By being correspondingly arranged director for antenna oscillator, it can increase and concentrate aerial electromagnetic wave, to increase
The signal gain of antenna oscillator.
Refering to Fig. 5 and such as Figure 10, shell 20 includes 211, two the first side walls 230 of bottom wall and two second sidewalls 240；Its
In, two the first side walls 230 connect with the both ends that bottom wall 211 is oppositely arranged and are integrally formed with bottom wall 211 by extrusion process；
The present embodiment can make two second sidewalls 240 by techniques such as die cast or extrusion formings respectively, then by two
Second sidewall 240 is spliced to the other both ends of the not set the first side wall 230 of bottom wall 211, and is fixedly connected with the first side wall 230.
The present embodiment can be fixed by second sidewall 240 and bottom wall 211 and the first side wall 230 using Friction Stir Welding mode.
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.
As shown in figure 12, seal groove 215 includes that the length direction D1 along support end face 213 extends and is located at the first pilot hole
It first slot section 216 of 214 two sides and is set around the periphery of the first pilot hole 214 and connects two adjacent the first slot sections 216
The second slot section 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 are located at the outside of seal groove 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.
As shown in Fig. 5 and Figure 13, active antenna element further comprises reinforcing frame 54, and reinforcing frame 54 is used for antenna substrate
11 pressings are fixed on support end face 213, i.e., when antenna substrate 11 is supported on support end face 213, reinforcing frame 54 is to antenna
Substrate 11 is pressed, 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 illustrated in figures 14-16, 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 (10)
1. 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；
Power board is set in the accommodating cavity；
Filter assembly is set in the accommodating cavity, and is covered on the top of the power board, to carry out to the power board
Electromagnetic shielding.
2. active antenna element according to claim 1, which is characterized in that the filter assembly is close to the power board
Side has been provided projectingly baffle assembly, and the baffle assembly is used to form bit-avoiding slot, and the bit-avoiding slot is for accommodating the power amplifier
Component on plate.
3. active antenna element according to claim 1, which is characterized in that the one of the separate accommodating cavity on the shell
Side is further integrally formed with multiple spaced cooling fins.
4. active antenna element according to claim 1, which is characterized in that the filter assembly is far from the power board
Side is provided with the multiple filter cells arranged with array manner, and the function arranged with array manner is provided on the power board
Unit is put, each power amplifier unit is connected to the corresponding filter cell.
5. active antenna element according to claim 4, which is characterized in that
The active antenna element further comprises antenna for base station, and the antenna for base station includes antenna substrate and with array manner
The mutiple antennas oscillator being arranged on the antenna substrate, the antenna for base station are covered on the top of the filter assembly, and
Each antenna oscillator is respectively connected to the corresponding filter cell.
6. active antenna element according to claim 5, which is characterized in that the filter assembly further comprises multiple
Port of wave filter, each port of wave filter are connected with the corresponding filter cell respectively, and the antenna for base station is into one
Step includes include quantity mutiple antennas port equal to the antenna oscillator or proportional relationship, each antenna port point
It does not connect with the corresponding antenna oscillator, and is further correspondingly connected with respectively with the multiple port of wave filter.
7. active antenna element according to claim 6, which is characterized in that the antenna oscillator is arranged in the antenna base
The first main surface away from the filter assembly of plate, the antenna oscillator are arranged in the form of sheets, and it is main to be attached at described first
On surface, second main surface of the antenna substrate close to the filter assembly is arranged in the antenna port.
8. active antenna element according to claim 7, which is characterized in that the antenna for base station is covered on the filter
On component, the antenna port is patched with the corresponding port of wave filter alignment therewith.
9. active antenna element according to claim 7, which is characterized in that the antenna for base station further comprises reflection
Piece, the reflecting layer are attached at the antenna substrate and first main surface in the second main surface of setting.
10. 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.
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|---|---|---|---|
| CN2019206337572 | 2019-04-30 | ||
| CN201920633757 | 2019-04-30 |
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| CN110323563B CN110323563B (en) | 2024-06-18 |
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| CN201921070887.6U Active CN210723354U (en) | 2019-04-30 | 2019-07-09 | Active antenna unit for base station and antenna unit |
| CN201910616660.5A Active CN110323563B (en) | 2019-04-30 | 2019-07-09 | Active antenna unit for base station and antenna unit |
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| CN111987410A (en) * | 2020-08-26 | 2020-11-24 | 广东通宇通讯股份有限公司 | Modular AFU structure |
| CN113937480A (en) * | 2021-11-19 | 2022-01-14 | 中邮通建设咨询有限公司 | Integrated air-cooled communication antenna module |
| WO2022257621A1 (en) * | 2021-06-10 | 2022-12-15 | 中兴通讯股份有限公司 | Base station heat dissipation architecture and base station |
| WO2023098648A1 (en) * | 2021-12-01 | 2023-06-08 | 中兴通讯股份有限公司 | Active antenna unit and base station |
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| CN210723354U (en) * | 2019-04-30 | 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 |
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| CN110994116A (en) * | 2019-12-24 | 2020-04-10 | 瑞声精密制造科技(常州)有限公司 | Heat radiation structure and antenna module of antenna |
| CN110994116B (en) * | 2019-12-24 | 2022-02-11 | 瑞声精密制造科技(常州)有限公司 | Heat radiation structure and antenna module of antenna |
| CN111987410A (en) * | 2020-08-26 | 2020-11-24 | 广东通宇通讯股份有限公司 | Modular AFU structure |
| WO2022257621A1 (en) * | 2021-06-10 | 2022-12-15 | 中兴通讯股份有限公司 | Base station heat dissipation architecture and base station |
| CN113937480A (en) * | 2021-11-19 | 2022-01-14 | 中邮通建设咨询有限公司 | Integrated air-cooled communication antenna module |
| WO2023098648A1 (en) * | 2021-12-01 | 2023-06-08 | 中兴通讯股份有限公司 | Active antenna unit and base station |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110323563B (en) | 2024-06-18 |
| CN210723354U (en) | 2020-06-09 |
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Country or region after: China Address after: 233000 building 4, national financial incubation Industrial Park, 17 Yannan Road, high tech Zone, Bengbu City, Anhui Province Applicant after: Dafu Technology (Anhui) Co.,Ltd. Address before: 518104 First, Second and Third Floors of A1, A2, A3 101, A4 of Shajing Street, Shajing Street, Baoan District, Shenzhen City, Guangdong Province Applicant before: SHENZHEN TATFOOK TECHNOLOGY Co.,Ltd. Country or region before: China |
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