CN110198172A - A kind of calibration network and antenna for base station of array antenna - Google Patents
A kind of calibration network and antenna for base station of array antenna Download PDFInfo
- Publication number
- CN110198172A CN110198172A CN201910608748.2A CN201910608748A CN110198172A CN 110198172 A CN110198172 A CN 110198172A CN 201910608748 A CN201910608748 A CN 201910608748A CN 110198172 A CN110198172 A CN 110198172A
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- calibration network
- power splitter
- array antenna
- substrate
- calibration
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/12—Supports; Mounting means
- H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
- H01Q1/24—Supports; Mounting means by structural association with other equipment or articles with receiving set
- H01Q1/241—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM
- H01Q1/246—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for base stations
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/005—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission adapting radio receivers, transmitters andtransceivers for operation on two or more bands, i.e. frequency ranges
- H04B1/0067—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission adapting radio receivers, transmitters andtransceivers for operation on two or more bands, i.e. frequency ranges with one or more circuit blocks in common for different bands
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/10—Monitoring; Testing of transmitters
- H04B17/11—Monitoring; Testing of transmitters for calibration
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/20—Monitoring; Testing of receivers
- H04B17/21—Monitoring; Testing of receivers for calibration; for correcting measurements
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/14—Relay systems
- H04B7/15—Active relay systems
- H04B7/155—Ground-based stations
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/14—Relay systems
- H04B7/15—Active relay systems
- H04B7/155—Ground-based stations
- H04B7/15528—Control of operation parameters of a relay station to exploit the physical medium
- H04B7/1555—Selecting relay station antenna mode, e.g. selecting omnidirectional -, directional beams, selecting polarizations
Abstract
The present invention provides a kind of calibration network of array antenna, comprising: first substrate is provided at least one sub- calibration network module on first substrate；The second substrate is provided at least one sub- calibration network module in the second substrate；Third substrate is provided with a total calibration network module on third substrate；Connector, connector connect total calibration network module and at least two sub- calibration network modules.The present invention also provides a kind of antenna for base station.A kind of calibration network of array antenna provided by the invention, by the way that calibration network is divided into multiple sub- calibration network modules and a total calibration network module, and modules are separately positioned on independent substrate, provide a kind of flexible calibration network structure design, sub- calibration network module and total calibration network module size can accomplish optimal, conducive to the raising of availability ratio of the armor plate, and at the same time calibration network weight can be reduced, so as to reduce antenna overall weight, the deployment difficulty and cost of antenna are reduced.
Description
Technical field
The present invention relates to antenna technical field more particularly to the calibration networks and antenna for base station of a kind of array antenna.
Background technique
Existing calibration network is typically all to be process with PCB, and the raw material of PCB are all that standard-sized high frequency covers
Copper sheet, the factory for producing high-frequency copper-clad plate have determined some standard sizes and have sold on the market, and PCB processing industry can be according to be processed
The parameters such as size, technique, the number of plies of PCB calculate this high-frequency copper-clad plate utilization rate, to calculate material cost.Such as it produces
Three layers of calibration network of 455mm*250mm, need in actual processing to consider plus some spacing and edges of boards are for facilitating production, generally
The spacing of gong plate stays 2mm, and edges of boards stay 8mm-20mm, and the bulk board then formed is cut in the size of raw material, uses in this way
610mm*457mm (24 " * 18 ") one piece can be cut into as the big plate of 455mm*250mm, availability ratio of the armor plate about 40%；610mm*
914mm (24 " * 36 ") three pieces can be cut into as the big plate of 455mm*250mm, availability ratio of the armor plate about 61%；Or 1220mm*
914mm (48 " * 36 ") six pieces can be cut into as the big plate of 455mm*250mm, availability ratio of the armor plate about 61%.
Since extensive mimo antenna port is more, the size of calibration network is larger relative to normal procedure intelligent antenna.It is existing
For the calibration network of technical solution due to using whole plate design scheme, availability ratio of the armor plate is relatively low.
Summary of the invention
The main purpose of the present invention is to provide a kind of calibration networks of array antenna, it is intended to solve array in the prior art
The lower problem of availability ratio of the armor plate in the calibration network design of antenna.
To achieve the above object, the present invention provides a kind of calibration network of array antenna, the calibration net of the array antenna
Network includes first substrate, and at least one sub- calibration network module is provided on the first substrate；
The second substrate is provided at least one sub- calibration network module in the second substrate；
Third substrate is provided at least one total calibration network module on the third substrate；
Connector, the connector connect total calibration network module and at least two sub- calibration network modules.
Optionally, the sub- calibration network module includes the first radio frequency connector, directional coupler and the first power splitter；
One end of the directional coupler connects first radio frequency connector and forms main signal channel, the directional couple
The other end of device connects first power splitter and forms coupled signal paths, wherein the coupled signal paths will be from the master
The coupled signal that signal path is coupled to is transferred to first power splitter.
Optionally, the number of first radio frequency connector and the directional coupler is N, the number of first power splitter
Mesh is M, and M first power splitters form multistage power divider network, wherein N=2n, 2n-1≤M≤2n- 1, n are the function point
The number of levels of device network and be positive integer；
Each first power splitter include branch port and merge port, the branch port of every the first power splitter of level-one with
The merging port of the first power splitter of upper level connects, and every the first power splitter of level-one merges port and the first power splitter of next stage
Branch port connection, wherein the branch port of the first power splitter of chopped-off head is connect with the directional coupler, the first function of final stage
Divide the merging port of device to pass through the connector and connects total calibration network module.
Optionally, between the branch port of each first power splitter on be provided with isolation resistance.
Optionally, total calibration network module include the second radio frequency connector and with the second power splitter；
Second power splitter include branch port and merge port, second power splitter merging port connection described in
The branch port of second radio frequency connector, second power splitter connects two sub- calibration network moulds by the connector
Block.
Optionally, the connector is coaxial cable.
Optionally, the connector is metal welding piece.
Optionally, the calibration network of the array antenna further includes metal plate, the first substrate, the second substrate and
Three substrates are all set on the metal plate.
Optionally, the circuit types for forming the calibration network of the array antenna is microstrip line or strip line.
The calibration network of a kind of array antenna provided by the invention, by the way that calibration network is divided into multiple sub- calibration network moulds
Block and a total calibration network module, and modules are separately positioned on independent substrate, it provides a kind of flexible
The design of calibration network structure, sub- calibration network module and total calibration network module size can accomplish optimal, are conducive to plate and utilize
The raising of rate, so as to reduce antenna overall weight, reduces the deployment of antenna and at the same time calibration network weight can be reduced
Difficulty and cost.
To achieve the above object, the present invention also provides a kind of antenna for base station, which is characterized in that the antenna for base station includes day
Beta radiation unit, function scoreboard, metal plate and array antenna as described above calibration network；The function scoreboard and the metal
Plate is bonded to each other setting, and antenna radiation unit is set to the surface for deviating from the metal plate in the function scoreboard, the array day
The calibration network of line is set to the surface that the metal plate deviates from the function scoreboard, and the calibration network of the array antenna passes through spy
Needle is connect with the function scoreboard.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the calibration network of array antenna of the present invention；
Fig. 2 is the structural schematic diagram of the sub- calibration network module of the calibration network of array antenna of the present invention；
Fig. 3 is the structure partial enlarged drawing of the sub- calibration network module of the calibration network of array antenna of the present invention；
Fig. 4 is the structural schematic diagram of total calibration network module of the calibration network of array antenna of the present invention；
Fig. 5 is the structural schematic diagram of the calibration network of array antenna of the present invention comprising two sub- calibration network modules；
Fig. 6 is the structural schematic diagram of the calibration network of array antenna of the present invention comprising two sub- calibration network modules；
Fig. 7 is the structural schematic diagram of the calibration network of array antenna of the present invention comprising two sub- calibration network modules；
Fig. 8 is the structural schematic diagram of the calibration network of array antenna of the present invention comprising two sub- calibration network modules；
Fig. 9 is the structure partial enlarged diagram of the calibration network of array antenna of the present invention comprising metal welding piece；
Figure 10 is the structural schematic diagram of the calibration network of array antenna of the present invention comprising two sub- calibration network modules；
Figure 11 is the structural schematic diagram of the calibration network of array antenna of the present invention comprising four sub- calibration network modules；
Figure 12 is the side view of the antenna for base station of calibration network of the present invention comprising array antenna.
Drawing reference numeral explanation:
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiment is only a part of the embodiments of the present invention, instead of all the embodiments.Base
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts it is all its
His embodiment, shall fall within the protection scope of the present invention.
It is to be appreciated that the directional instruction (such as up, down, left, right, before and after ...) of institute is only used in the embodiment of the present invention
In explaining in relative positional relationship, the motion conditions etc. under a certain particular pose (as shown in the picture) between each component, if should
When particular pose changes, then directionality instruction also correspondingly changes correspondingly.
In addition, the description for being related to " first ", " second " etc. in the present invention is used for description purposes only, and should not be understood as referring to
Show or imply its relative importance or implicitly indicates the quantity of indicated technical characteristic." first ", " are defined as a result,
Two " feature can explicitly or implicitly include at least one of the features.In addition, the technical solution between each embodiment can
It to be combined with each other, but must be based on can be realized by those of ordinary skill in the art, when the combination of technical solution occurs
Conflicting or cannot achieve when, will be understood that the combination of this technical solution is not present, also not the present invention claims protection model
Within enclosing.
Referring to Fig.1, Fig. 1 is the structural schematic diagram of one of one embodiment of the invention calibration network of array antenna,
Wherein, the calibration network 1 of the array antenna includes:
First substrate 10 is provided at least one sub- calibration network module 40 on the first substrate 10；The second substrate 20, institute
It states and is provided at least one sub- calibration network module 40 in the second substrate 20；Third substrate 30 is set on the third substrate 30
It is equipped with a total calibration network module 50；Connector 60, the connector 60 connect total calibration network module 50 and two institutes
State sub- calibration network module 40.
Specifically, as shown in Figure 2 and Figure 3, the sub- calibration network module 40 includes the first radio frequency connector 70, orientation coupling
Clutch 80 and the first power splitter 90；One end of the directional coupler 80 connects first radio frequency connector 70 and forms main signal
Channel, the other end of the directional coupler 80 connect first power splitter 90 and form coupled signal paths, wherein the coupling
It closes signal path and the coupled signal being coupled to from the main signal channel is transferred to first power splitter 90, by the first function point
Coupled signal is transferred to total calibration network module 50 by connector 60 by device 90.
It should be noted that as shown in figure 3, directional coupler 80 includes first transmission line 81 and second transmission line 82, the
One transmission line 81 is connected between the first radio frequency connector 70 and feed port 100, second transmission line 82 and first transmission line 81
One end of close but spaced and parallel setting, second transmission line 82 connects the first power splitter 90.It is passed in radio frequency main signal via first
When defeated line 81 is transferred to the progress radio circuit transmission of feed port 100, second transmission line 82 will be coupled from first transmission line 81
The first power splitter 90 is transferred to coupled signal.
In addition, sub- calibration network module 40 further includes the feed port 100 connecting with the first radio frequency connector 70, feed end
Mouth 100 is connected with the radiating element of antenna, and the radiating element of antenna will be transferred to from 70 received signal of the first radio frequency connector
It is radiated to space.
When the first power splitter 90 is the Wilkinson power divider of one-to-two, first radio frequency connector 70 and described fixed
It is N to the number of coupler 80, the number of first power splitter 90 is M, wherein N=2n, 2n-1≤M≤2n- 1, M described
First power splitter 90 forms multistage power divider network, and n is the number of levels of the power divider network and is positive integer；It is each described
First power splitter 90 includes branch port 91 and merging port 92, the branch port 91 and upper level of every the first power splitter of level-one 90
The merging port 92 of first power splitter 90 connects, the merging port 92 of every the first power splitter of level-one 90 and the first power splitter of next stage
90 branch port 91 connects, wherein and the branch port 91 of the first power splitter 90 of chopped-off head is connect with the directional coupler 80,
The merging port 92 of first power splitter 90 of final stage connects total calibration network module 50 by the connector 60.
Further, in order to increase the isolation between branch port, the branch port of each first power splitter 90
Isolation resistance 110 is provided between 91.
In addition, in the number M=2 of the first power splitter 90nWhen -1, the afterbody function point of every sub- calibration network module 40
Only one first power splitter 90 of device network, multichannel coupled signal is finally from the merging port of the first power splitter 90 of afterbody
92 output, as shown in figure 4, total calibration network module 50 include the second radio frequency connector 70 and with the second power splitter 90；Institute
It states the second power splitter 90 to include branch port 91 and merge port 92, the merging port 92 of second power splitter 90 connects described
The branch port 91 of second radio frequency connector 70, second power splitter 90 connects two sub- schools by the connector 60
The merging port 92 of first power splitter 90 of the afterbody of pseudo-crystalline lattice module 40.
Wherein, the branch port 91 of the second power splitter 90 connects the of each sub- calibration network module 40 by connector 60
One power splitter 90, receives the coupled signal of each sub- calibration network module 40 output, and by these coupled signals via itself
Merge port 92 and is transferred to next processing subsystem.
It should be noted that in the number M < 2 of the first power splitternWhen -1, the afterbody of every sub- calibration network module
Power divider network has multiple first power splitters, and multichannel coupled signal is finally from the merging end of multiple first power splitters of afterbody
Mouth output.Total calibration network module includes the second power divider network of multiple second power splitter compositions at this time.
For example, if in the afterbody power divider network of two sub- calibration network modules being two the first power splitters, that
Total calibration network module includes the second power divider network of two-stage of three the second power splitters composition, the first power splitter and the second function
Point device all can be Wilkinson power divider, each power splitter has a merging port and two branch ports.Wherein, total school
The a total of four branch port of two the second power splitters of the pseudo-crystalline lattice module first order respectively with two sub- calibration network modules most
The first power splitter of a total of four of rear stage merges port and connects one to one, and two second of total calibration network module first order
Power splitter merges port and two branch ports of the second power splitter of its second level connect one to one, the second function of the second level
The merging port of device is divided to connect the second radio frequency interface.
Further, in order to increase the isolation between branch port, the branch port of each second power splitter 90
Isolation resistance 110 is provided between 91.
The calibration network for the array antenna that the present embodiment proposes is applied to base station system, and base station system includes baseband subsystems
And antenna subsystem, wherein include the array antenna unit of multiple radiation signals in antenna subsystem.Baseband subsystems will be to shifting
Dynamic terminal is accurately positioned and wave beam forming, needs to obtain the accurate amplitude and phase information of each array antenna unit,
But it needs connection, the differential loss and length of these connecting links such as to put with cable, tower between baseband subsystems and antenna subsystem
It is difficult to be completely secured unanimously, these errors will will affect the normal work of entire base station system, it is therefore desirable to realize calibration to disappear
Except these errors.
In order to realize calibration, calibration port is set, and by the school of array antenna between baseband subsystems and antenna subsystem
Pseudo-crystalline lattice connection enters base station system, and baseband subsystems give the transmitting of each array antenna unit one calibration letter by calibration port
Number, calibration signal is back to baseband subsystems by the calibration network of array antenna again, and baseband subsystems are according to the calibration of passback
Signal estimation goes out the loss of signal transmission path bring and phase shift, makes up these losses and phase shift automatically, makes the work sent letter
Number same phase of constant amplitude.
Specifically, when the base station system work of the calibration network 1 including array antenna, by the transmitting terminal point of baseband subsystems
Not Fa Song radiofrequency signal enter each sub- 40 first radio frequency connector 70 of calibration network module, radiofrequency signal is transferred to feed end
Mouthfuls 100, it is radiated via the antenna radiation unit being connect with feed port 100 to space, meanwhile, directional coupler 80 is by coupling
The coupled signal closed is transferred to the first power splitter 90, each sub- calibration network that will finally be received by total calibration network module 50
The coupled signal of module 40 returns to baseband subsystems.
Calibration network from being physically divided into multiple sub- calibrations by the calibration network of array antenna provided in this embodiment
Availability ratio of the armor plate can be greatly improved in network module and a total calibration network module, modular design.Such as when with whole plate
Mode come when designing calibration network, need a block size be 455mm*250mm whole plate, and if according to the present embodiment draw
The mode of molecule plate come when designing calibration network, need two block sizes be 455mm*70mm daughter board, wherein total calibration network
Module very little, can be ignored.The plate of material of 1220mm*914mm (48 ＂ *, 36 ＂) can be cut into as six pieces
455mm*250mm whole plate, 27 pieces can be cut into as 455mm*70mm daughter board, i.e., to produce the calibration of a set of array antenna
Network, the plate of material of same size, the prior art can produce 6 sets, and the scheme of the present embodiment can produce 13.5 sets.
The calibration network of a kind of array antenna provided in this embodiment, by the way that calibration network is divided into multiple sub- calibration networks
Module and a total calibration network module, and modules are separately positioned on independent substrate, it provides a kind of flexible
The design of calibration network structure, sub- calibration network module and total calibration network module size can accomplish optimal, be conducive to plate benefit
, so as to reduce antenna overall weight, the portion of antenna is reduced and at the same time calibration network weight can be reduced with the raising of rate
Affix one's name to difficulty and cost.
It is to be appreciated that the position of total calibration network module can since total calibration network module is located on independent substrate
To carry out flexible design according to the position of back end processing module such as filter module, such as there are two sub- calibration network modules
When, total calibration module can be placed between two sub- calibration network modules, can also be placed between sub- calibration network module
Region other than.
It should be noted that in order to improve the consistency of calibration signal, total calibration network module and each sub- calibration network
The equal length of line between module.
As shown in figure 5, in another embodiment, total calibration network module 50 of the calibration network of the array antenna is located at
Region between two sub- calibration network modules 40, and total calibration network module is located at the central location in region, always calibrates net
Network module 50 is separately connected two sub- calibration network modules 40 by two connectors 60, wherein connector 60 is coaxial cable.
As shown in fig. 6, in another embodiment, in another embodiment, total school of the calibration network of the array antenna
Pseudo-crystalline lattice module 50 is located at the region between two sub- calibration network modules 40, and total calibration network module is located on the left of region
Position, total calibration network module 50 are separately connected two sub- calibration network modules 40 by two connectors 60, wherein connector
60 be coaxial cable.
As shown in fig. 7, in another embodiment, in another embodiment, total school of the calibration network of the array antenna
Pseudo-crystalline lattice module 50 is located at the region of two sub- 40 sides of calibration network module, and total calibration network module 50 passes through two connectors
60 are separately connected two sub- calibration network modules 40, wherein connector 60 is coaxial cable.
As shown in figure 8, in another embodiment, in another embodiment, total school of the calibration network of the array antenna
Pseudo-crystalline lattice module 50 is located at the region between two sub- calibration network modules 40, and total calibration network module is located in region
Position is entreated, total calibration network module 50 is separately connected two sub- calibration network modules 40 by two connectors 60, wherein connection
Part 60 is metal weldment 61.
Specifically, as shown in figure 9, a metal welding piece 61 is connected to the first function point in a sub- calibration network module 40
Device 90 merges in port 92 and total calibration network module 50 between the branch port 91 of second power splitter.
As shown in Figure 10, in another embodiment, in another embodiment, total school of the calibration network of the array antenna
Pseudo-crystalline lattice module 50 is located at the region between two sub- calibration network modules 40, and total calibration network module is located on the left of region
Position, total calibration network module 50 are separately connected two sub- calibration network modules 40 by two connectors 60, wherein connector
60 be metal welding piece 61.
As shown in figure 11, in another embodiment, the calibration network of shown array antenna includes four sub- calibration network moulds
Total calibration network module 50 of block 40 and a total calibration network module 50, network is located at four sub- 40 sides of calibration network module
Region, total calibration network module 50 is separately connected two sub- calibration network modules 40 by four connectors 60, wherein connection
Part 60 is coaxial cable.It should be noted that need to be arranged two-stage power division network in total calibration module 50 at this time, first order function point
Network is made of two the second power splitters, and totally four branch ports of two the second power splitters are separately connected four sub- calibration networks
Afterbody power division network the first power splitter merging port, second level power division network has second power splitter, this
Two branch ports of two power splitters are separately connected the merging port of two the second power splitters of first order power division network, this second
The merging port of power splitter connects the second radio frequency connector.
As shown in figure 12, the present invention also provides a kind of antenna for base station 2 in one embodiment, and the antenna for base station includes antenna
Radiating element 120, function scoreboard 130, metal plate 140 and array antenna as described above calibration network 1；The function scoreboard
130 are bonded to each other setting with the metal plate 140, and antenna radiation unit 120 is set in the function scoreboard 130 away from the gold
Belong to the surface of plate 140, the calibration network 1 of the array antenna is set to the table that the metal plate 140 deviates from the function scoreboard 130
The calibration network 1 in face, the array antenna is connect by probe with the function scoreboard 130.
It should be noted that when the connector in the calibration network 1 of array antenna is metal welding piece, metal welding piece
There are gaps between metal plate 140.
Antenna for base station provided in this embodiment, due to containing the calibration network of array antenna provided by the invention, the battle array
Calibration network from being physically divided into multiple sub- calibration network modules and a total calibration network by the calibration network of array antenna
Module, on the one hand modular design can achieve the consistency of extremely excellent signal amplitude and phase, on the other hand appoint wherein
What module occurs quickly to position and replace when problem, avoids in the presence of the failure because of some regional area and wants
The risk for scrapping the entire calibration network of antenna for base station, improves the stability of antenna for base station.
The above description is only a preferred embodiment of the present invention, is not intended to limit the scope of the invention, all at this
Under the design of invention, using equivalent transformation made by description of the invention and accompanying drawing content, or directly/it is used in other phases indirectly
The technical field of pass is included in scope of patent protection of the invention.
Claims (10)
1. a kind of calibration network of array antenna, which is characterized in that the calibration network includes:
First substrate is provided at least one sub- calibration network module on the first substrate；
The second substrate is provided at least one sub- calibration network module in the second substrate；
Third substrate is provided with a total calibration network module on the third substrate；
Connector, the connector connect total calibration network module and at least two sub- calibration network modules.
2. the calibration network of array antenna as described in claim 1, which is characterized in that the sub- calibration network module includes the
One radio frequency connector, directional coupler and the first power splitter；
One end of the directional coupler connects first radio frequency connector and forms main signal channel, the directional coupler
The other end connects first power splitter and forms coupled signal paths, wherein the coupled signal paths will be from the main signal
The coupled signal that channel is coupled to is transferred to first power splitter.
3. the calibration network of array antenna as claimed in claim 2, which is characterized in that first radio frequency connector and described
The number of directional coupler is N, and the number of first power splitter is M, and M first power splitters form multistage power splitter net
Network, wherein N=2n, 2n-1≤M≤2n- 1, n are the number of levels of the power divider network and are positive integer；
Each first power splitter includes branch port and merging port, the branch port and upper one of every the first power splitter of level-one
The merging port connection of the first power splitter of grade, the branch of the merging port and the first power splitter of next stage of every the first power splitter of level-one
Port connection, wherein the branch port of the first power splitter of chopped-off head is connect with the directional coupler, the first power splitter of final stage
Merging port pass through the connector and connect total calibration network module.
4. the calibration network of array antenna as claimed in claim 3, which is characterized in that the branch of each first power splitter
Isolation resistance is provided between port.
5. the calibration network of array antenna as described in claim 1, which is characterized in that total calibration network module includes the
Two radio frequency connectors and with the second power splitter；
Second power splitter includes branch port and merges port, and the merging port of second power splitter connects described second
The branch port of radio frequency connector, second power splitter connects two sub- calibration network modules by the connector.
6. the calibration network of array antenna as claimed in claim 5, which is characterized in that the connector is coaxial cable.
7. the calibration network of array antenna as claimed in claim 5, which is characterized in that the connector is metal welding piece.
8. the calibration network of array antenna as described in any one of claim 1 to 7, which is characterized in that the array antenna
Calibration network further includes metal plate, and the first substrate, the second substrate and third substrate are all set on the metal plate.
9. the calibration network of array antenna as described in any one of claim 1 to 7, which is characterized in that form the array day
The circuit types of the calibration network of line is microstrip line or strip line.
10. a kind of antenna for base station, which is characterized in that the antenna for base station include antenna radiation unit, function scoreboard, metal plate and
The calibration network of array antenna as described in any one of claim 1 to 9；
The function scoreboard and the metal plate are bonded to each other setting, and antenna radiation unit is set in the function scoreboard away from described
The surface of metal plate, the calibration network of the array antenna is set to the surface that the metal plate deviates from the function scoreboard, described
The calibration network of array antenna is connect by probe with the function scoreboard.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201910608748.2A CN110198172A (en) | 2019-07-05 | 2019-07-05 | A kind of calibration network and antenna for base station of array antenna |
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| CN201910608748.2A CN110198172A (en) | 2019-07-05 | 2019-07-05 | A kind of calibration network and antenna for base station of array antenna |
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| CN201910608748.2A Pending CN110198172A (en) | 2019-07-05 | 2019-07-05 | A kind of calibration network and antenna for base station of array antenna |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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