CN108390703A - A kind of multi-beam phased array antenna mechanism - Google Patents
A kind of multi-beam phased array antenna mechanism Download PDFInfo
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- CN108390703A CN108390703A CN201810073512.9A CN201810073512A CN108390703A CN 108390703 A CN108390703 A CN 108390703A CN 201810073512 A CN201810073512 A CN 201810073512A CN 108390703 A CN108390703 A CN 108390703A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
- H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
- H04B7/0613—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission
- H04B7/0615—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal
- H04B7/0617—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal for beam forming
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/27—Adaptation for use in or on movable bodies
- H01Q1/28—Adaptation for use in or on aircraft, missiles, satellites, or balloons
- H01Q1/288—Satellite antennas
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q25/00—Antennas or antenna systems providing at least two radiating patterns
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
- H04B7/0408—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas using two or more beams, i.e. beam diversity
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
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- Aviation & Aerospace Engineering (AREA)
- Variable-Direction Aerials And Aerial Arrays (AREA)
Abstract
The invention discloses a kind of multi-beam phased array antenna mechanisms, can input the radiofrequency signal that the roads M respectively include K subsignal by digital channel.Switched on different time node by switching network input amount in the radiofrequency signal of the roads N certain all the way, then assign each subsignal different digital phase shift values by passive multiple beam forming network, the new roads M radiofrequency signal will be become per the final work(division of radiofrequency signal all the way, to all encourage all units of entire antenna array, the aerial radiation wave beam of a high-gain is formed.The high-gain wave beam is also to be synthesized by K sub- signal beams.The program uses simulation multi-beam phased array design in level dimension, digital multiple beam phased array design is used in vertical dimension, it avoids to need to tie up in level in the prior art and increases digital channel in a manner of realizing multi-beam, the power consumption that entire antenna system can effectively be reduced ensure that and realize more wave beam under the conditions of low-power consumption to meet the access of multi-user.
Description
Technical field
The present invention relates to wireless communication technology fields, more particularly to a kind of multi-beam phased array antenna mechanism.
Background technology
Now with the rise of satellite internet data service application, non-geo satellite communication satellite constellation project is grown
Foot development.Conventional telecommunication satellite is respectively positioned on geostationary orbit, time delay is very big, data transfer rate is low, input and application it is costly,
And generally use small low orbit satellite meets the needs of satellite internet system at present.
In actual mechanical process, for the application scenarios of satellite multi-user covering, antenna need wave beams more as possible with
The needs of meeting multi-user while accessing.Since Low earth orbit satellite is by therefrom, the transmission power of antenna is most valuable on star
Resource.Therefore it is required that antenna can be realized realizes wave beam transmitting-receivings more as possible under consumption conditions small as possible, and existing
It is usually more difficult under technology to accomplish this point.
It is difficult to realize more wave beam under the restrictive condition of low-power consumption as it can be seen that satellite antenna exists in the prior art, from
And the technical issues of cannot be satisfied multi-user while accessing.
Invention content
The application provides a kind of multi-beam phased array antenna mechanism, to solve the satellite antenna existed in the prior art
It is difficult to realize more wave beam under the restrictive condition of low-power consumption, to cannot be satisfied multi-user while the technical issues of access.
The application first aspect provides a kind of multi-beam phased array antenna mechanism, including:
M base-band digital channel, each base-band digital channel amount to the roads input M to export radiofrequency signal all the way
Identical radiofrequency signal, wherein each radiofrequency signal is made of K subsignal, and M is the integer more than or equal to 2, and K is
Integer more than or equal to 2;
M switching network, including M opens up passs, the M opens up pass and M base-band digital channels difference
Connect one to one, and the pass that opens up includes N number of access more, on a timing node in N number of access there are one
Access is in connected state, so that the radiofrequency signal all the way of input is exported from the access, N is the integer more than or equal to 2;
Passive multiple beam forming network, including M layers of processing unit, the M layers of processing unit open up pass one more with the M
One is correspondingly connected with, and the processing unit maps son the radiofrequency signal work(exported through the switching network is divided into K respectively
Signal, and export M output line of feed-in after described K mapping subsignal synthesis processing to form M beam beamformer outputs, amount to and obtains
M groups × M beam beamformer outputs;
M × M array-element antennas are connect with the passive multiple beam forming network, to emit the M groups × M beam output waves
Beam.
Optionally, the processing unit, including:
Passive microwave support plate;
Passive work(divides radio frequency network, is arranged on the passive microwave support plate, including work(sub-module and signal transmission network,
The work(sub-module is connect more with the N number of accesses for opening up pass, the radiofrequency signal work(of input is divided into K mapping
Subsignal, the transmission network export to map subsignal by described K;
Passive phasing transmission line is arranged on the passive microwave support plate and with the transmission network and connect, to will be defeated
The K mapping subsignal entered carries out phase shift processing, forms the phase shift signal of M phase matched;
Passive power combining networks are arranged on the passive microwave support plate and are connect with the passive phasing transmission line,
M beam beamformer outputs are generated the phase shift signal of the M phase matched to be carried out to synthesis processing respectively.
Optionally, the work(sub-module includes:
N number of work(partial node, N number of work(partial node connect one to one more with the N number of accesses for opening up pass, institute
Work(partial node is stated the radiofrequency signal work(of input is divided into K mapping subsignal;
The transmission network includes K transmission lines, corresponded respectively by described K mapping subsignal output.
Optionally, the passive phasing transmission line, including:
K phase shift processing unit, the K phase shift processing unit connect one to one with the K transmission lines, the shifting
Phase processor unit carries out phase shift processing to the mapping subsignal that will be inputted, and is formed and a phase matched in M phase
Phase shift signal.
Optionally, the passive power combining networks, including:
M synthesis node, each combined node pair should receive the shifting with the output of the phase shift processing unit of a phase matched
Phase signals, and the beamformer output is synthesized with phase matched phase shift signal by described, amount to synthesis M beam output waves
Beam.
Optionally, the pass that opens up is single pole multiple throw more.
Optionally, the material of the passive microwave support plate is microwave plank of the loss less than predetermined loss value.
Optionally, the passive work(divides radio frequency network to be arranged on Rotman lens.
One or more technical solutions provided in the embodiments of the present application have at least the following technical effects or advantages:
Technical solution in the embodiment of the present application can be existed the roads the M radiofrequency signal that digital channel generates by switching network
Input is switched on different time node and amounts to the roads N radiofrequency signal, and then is formed in the horizontal dimension of front N number of existing for timesharing
Fixed beam is simulated, the orientation angle of N number of fixed beam existing for above-mentioned timesharing is the fixation formed by passive phasing transmission line
What phase shift value determined.The roads the M radiofrequency signal that digital channel generates simultaneously, per radiofrequency signal all the way by identical K subsignal
It constitutes, each digital channel can assign each subsignal different digital phase shift values, by switching network in different time node
On switch over input amount in the radiofrequency signal of the roads N certain all the way, will believe per radio frequency all the way by passive multiple beam forming network
Number work(is divided into the roads M radiofrequency signal, all units of entire antenna array are all encouraged, and then form the day of a high-gain
Beta radiation wave beam, since the radiofrequency signal of each array element radiation includes K subsignal, which is also by K son
Signal beam synthesis.The digital phase shift value that K subsignal is assigned by digital channel is different, and then the high-gain wave of above-mentioned synthesis
The different angle of subsignal beam position in beam, wave beam just form simultaneous K in the separation of the vertical dimensions of front
Digital beam.The phased array design uses simulation multi-beam phased array design method in level dimension, and number is used in vertical dimension
Word multi-beam phased array design method avoids and needs to tie up increase digital channel in level to realize more wave beam in the prior art
Mode, therefore can effectively reduce the power consumption of entire antenna system, ensure that realized under the conditions of low-power consumption more wave beam with
Meet the access of multi-user, therefore, the multi-beam phased array antenna mechanism in the embodiment of the present application has raising multi-beam phased
The applicability of array antenna, the utilization ratio of satellite communication resource and the technique effect for reducing its application cost.
The embodiment of the present application at least also at least has the following technical effects or advantages:
Further, the technical solution in the embodiment of the present application can be with alignment processing all the way by the way that each work(partial node is arranged
The radiofrequency signal of input, therefore the radiofrequency signal that the roads N input can be carried out independent work(point processing respectively by every layer of processing unit,
Avoid when carrying out work(point processing respectively to the radiofrequency signal of multiple input using work(subset, it is possible that operation
Deviation or maloperation phenomenon, the technique effect with raising system processing accuracy.
Further, the passive multiple beam forming network in the embodiment of the present application can also will be after work(sub-module work(point processing
K mapping subsignal carry out corresponding phase shift and synthesis processing respectively, while be also an option that property signal is carried out it is corresponding
The phase shift of angle the case where can not changing so as to avoid signal phase shift value, has the technique effect for improving TR component applicabilities.
Description of the drawings
Fig. 1 is the structure chart of multi-beam phased array antenna provided in an embodiment of the present invention mechanism;
Fig. 2 is the structure chart of passive multiple beam forming network provided in an embodiment of the present invention.
Specific implementation mode
The application provides a kind of multi-beam phased array antenna mechanism, to solve the satellite antenna existed in the prior art
It is difficult to realize more wave beam under the restrictive condition of low-power consumption, to cannot be satisfied multi-user while the technical issues of access.
Technical solution in the embodiment of the present application is in order to solve the above technical problems, general thought is as follows:
The roads M radiofrequency signal that digital channel generates can be switched on different time node by switching network defeated
Enter total roads N radiofrequency signal, and then forms N number of simulation fixed beam, above-mentioned timesharing existing for timesharing in the horizontal dimension of front and deposit
The orientation angle of N number of fixed beam be that the fixation phase shift value formed by passive phasing transmission line determines.Number is logical simultaneously
The roads the M radiofrequency signal that road generates is made of per radiofrequency signal all the way identical K subsignal, and each digital channel can assign
The different digital phase shift value of each subsignal switches over the total roads N of input on different time node by switching network and penetrates
In frequency signal certain all the way, will be divided into the roads M radiofrequency signal per radiofrequency signal work(all the way by passive multiple beam forming network, will
All units of entire antenna array all encourage, and then form the aerial radiation wave beam of a high-gain, due to each array element
The radiofrequency signal of radiation includes K subsignal, which is also to be synthesized by K sub- signal beams.It is logical by number
The digital phase shift value that road assigns K subsignal is different, and then the subsignal beam position in the high-gain wave beam of above-mentioned synthesis is not
Same angle, wave beam just form simultaneous K digital beam in the separation of the vertical dimensions of front.The phased array design exists
Level dimension uses simulation multi-beam phased array design method, and digital multiple beam phased array design method is used in vertical dimension,
It avoids to need to tie up in level in the prior art and increases digital channel in a manner of realizing more wave beam, therefore can effectively reduce
The power consumption of entire antenna system ensure that and realize more wave beam under the conditions of low-power consumption to meet the access of multi-user, therefore, originally
Apply for that the multi-beam phased array antenna mechanism in embodiment has the applicability for improving multi-beam phased array antenna, satellite communication money
The utilization ratio in source and the technique effect for reducing its application cost.
Technical scheme is described in detail below by attached drawing and specific embodiment, it should be understood that the application
Specific features in embodiment and embodiment are the detailed description to technical scheme, rather than to present techniques
The restriction of scheme, in the absence of conflict, the technical characteristic in the embodiment of the present application and embodiment can be combined with each other.
The terms "and/or", only a kind of incidence relation of description affiliated partner, indicates that there may be three kinds of passes
System, for example, A and/or B, can indicate:Individualism A exists simultaneously A and B, these three situations of individualism B.In addition, herein
Middle character "/", it is a kind of relationship of "or" to typically represent forward-backward correlation object.
Embodiment one
Referring to FIG. 1, the embodiment of the present application one provides a kind of multi-beam phased array antenna mechanism, including:
M base-band digital channel, each base-band digital channel amount to the roads input M to export radiofrequency signal all the way
Identical radiofrequency signal, wherein each radiofrequency signal is made of K subsignal, and M is the integer more than or equal to 2, and K is
Integer more than or equal to 2;
M switching network 102, including M opens up passs, the M passes that open up are divided more with M base-band digital channels
It does not connect one to one, and the pass that opens up includes N number of access more, there was only one in N number of access on a timing node
A access is in connected state, so that the radiofrequency signal all the way of input is exported from the access, N is the integer more than or equal to 2;It is described
The passes that open up can be multi-pole, multi-throw switch, single-pole single-throw switch (SPST), multiple pole single throw switch, etc. more, as long as can meet one
Only be in connected state there are one access in N number of access on a timing node so that the radiofrequency signal all the way inputted from this
The device or equipment of access output all can serve as described to open up pass more.And in the embodiment of the present application, the switching network is
Single pole multiple throw.
Passive multiple beam forming network 103, including M layers of processing unit, the M layers of processing unit open up more with the M
Pass connects one to one, the processing unit to respectively by the radiofrequency signal work(exported through the switching network be divided into K son
Signal, and export M output line of feed-in after K subsignal synthesis processing to form M beam beamformer outputs, amount to and obtains M groups
× M beam beamformer outputs, K are the integer more than or equal to 2.
M × M array-element antennas 104, M × M array-element antennas are connect with the passive multiple beam forming network, to emit
State M groups × M beam beamformer outputs.
In the technical solution of the embodiment of the present application, wave beam is the envelope for characterizing signal power size, a signal
It is a wave beam, beam position (namely signal direction) is determined by phase shift value, is divided into horizontal phase shift value and vertical phase shift value
Collective effect.
Passive multiple beam forming network in the embodiment of the present application can be made of one-dimensional Rotman lens, by above-mentioned portion
Part is arranged it is found that in every layer of processing unit, and access switching is carried out by the way that the variable connector is upper in different time points, so as to
To form the input of the roads N radiofrequency signal in the lens, corresponds to N number of analog beam and (that is, on N number of time point, lead to
Pass will be opened up more by, which crossing, is respectively placed on N number of access, so that it may amount to the roads N radiofrequency signal to input), then by respectively by the every of input
Road radiofrequency signal carries out work(division into processing respectively, since the roads the M radiofrequency signal of input is identical same radiofrequency signal,
N number of wave cover of the radiofrequency signal in horizontal dimension can be formed, does not have any power consumption in the implementation process.
Every layer of processing unit in the passive multiple beam forming network carries out work(point in the every road radiofrequency signal that will be inputted
During synthesis is handled, it can will be divided into arbitrary multi signal, that is, total K by radiofrequency signal work(all the way by work(subset
Map subsignal (mapping beamlet), mapping subsignal quantity K only with the digital channel processing capacity and power consumption in processing unit
Theoretically arbitrary more variable number wave beam may be implemented in vertical dimension in correlation.Led to by different in the switching network more
Switching, the number of beams that can be formed (mapping subsignal quantity) are:N number of fixed-analog wave beam × K variable number wave
Beam, this cannot achieve in prior art conventional simulation multibeam antenna.And it is described K mapping subsignal can refer to by
K subsignal carries out the signal after phase shift.
Further, the orientation angle of the K mapping beamlet, level angle can be by the passive Multibeam synthesis
Network-control determines, carries out width in work(division is at processing procedure by the processing unit of passive multiple beam forming network and mutually regulates and controls
And assign K wave beam of this row common horizontal plane orientation angle.
Orientation angle, vertical angle and the K wave beam of the K wave beam form a line, and are directed toward different vertical angles,
The digital phase shift value that can be assigned by the digital channel for being directed to the K wave beam in the processing unit determines, each to map son letter
Number assign different digital phase shift value, it is assumed that after mapping subsignal 1 assigns set of number phase shift value, map the wave of subsignal 1
Beam is directed toward 60 ° of ﹢ in vertical direction;After mapping subsignal 2 assigns another group of digital phase shift value, the wave beam of subsignal 2 is mapped
50 ° of ﹢ is directed toward in vertical direction;And so on, K wave beam of vertical dimensions is just directed toward different angles, that is, forms vertical
K wave beam of dimension.
Therefore it in the technical solution of the embodiment of the present application, is carved for the moment arbitrary, since radiofrequency signal is by K subsignal structure
At, therefore the wave beam of antenna array is K, is distributed in vertical direction, it is to cut simultaneously that the M in the switching network open up pass more
It changes, for example, the M N number of accesses for opening up the Central Shanxi Plain are numbered in the way of being from top to bottom 1,2 ... N, is being opened morely
When closing access switching, M open up pass more and can be closed at access 1 or be closed at access 2.When close access 1 then with
Phase shift processing module effect in 1 corresponding digital channel of access, the level angle of K wave beam of a vertical row assume all for-
60 °, the phase shift processing module effect in when close access 2 digital channel corresponding with access 2, the horizontal angle of the train wave beam is spent a holiday
If being directed toward -50 °, and so on;When switch is switched to access N by 1 sequence of access, the level angle of K wave beam of the vertical row
It can be directed toward 60 ° of ﹢ successively from -60 °.
It is further noted that the quantity M in base-band digital channel and M × M array elements day in this antenna mechanism system
The dimension of line is identical, and each base-band digital channel can be the information processing board of an independent process function, such as may include
The functions such as signal-processing board, AD/DA digital samples, Up/Down Conversion, the signal of output can be to have already passed through modulated radio frequency
Signal.
It is a ball due to a signal if only radiating the wave beam that cannot form high-gain from an array element
Shape envelope.Each signal must jointly be radiated by M*M unit of entire front, could become the wave beam of a high-gain,
Namely needle-shaped envelope.Therefore, at any time, each unit contains K signal, M × M K1Signal forms direction
The wave beam 1 that 60 ° of vertical plane ﹢, M*M K2Signal form 50 ° of directivity on vertical plane ﹢ wave beam 2 ... etc., and so on.By
This can work(be divided into M radiofrequency signal in the horizontal plane by radiofrequency signal, encourages the M unit per a line in array antenna;Again
Divide synthesis that radiofrequency signal is allocated to M*M bay by the work(in M layers of processing unit, so as to form entire
(arbitrary K volumes wave beam is all entire front while being encouraged) is encouraged while antenna array.
As it can be seen that the roads the M radiofrequency signal that digital channel generates can be passed through switch by the technical solution in the embodiment of the present application
Network switches over input on different time node and amounts to the roads N radiofrequency signal, and then forms timesharing in the horizontal dimension of front and deposit
N number of simulation fixed beam, the orientation angle of N number of fixed beam existing for above-mentioned timesharing is formed by passive phasing transmission line
Fixation phase shift value determine.The roads the M radiofrequency signal that digital channel generates simultaneously, per radiofrequency signal all the way by identical K
Subsignal is constituted, and each digital channel can assign each subsignal different digital phase shift values, by switching network when different
Switched in intermediate node input amount in the radiofrequency signal of the roads N certain all the way, will be per all the way by passive multiple beam forming network
Radiofrequency signal work(is divided into the roads M radiofrequency signal, all units of entire antenna array are all encouraged, and then form one high increase
Benefit aerial radiation wave beam, due to each array element radiation radiofrequency signal include K subsignal, the high-gain wave beam be also by
What K sub- signal beams synthesized.The digital phase shift value that K subsignal is assigned by digital channel is different, and then the height of above-mentioned synthesis
The different angle of subsignal beam position in gain wave beam, wave beam are just formd in the separation of the vertical dimensions of front and are existed simultaneously
K digital beam.The phased array design uses simulation multi-beam phased array design method in level dimension, is used in vertical dimension
Digital multiple beam phased array design method avoids and needs to tie up that increase digital channel to realize more in the prior art in level
The mode of wave beam, therefore the power consumption of entire antenna system can be effectively reduced, it ensure that and realize reflection,many under the conditions of low-power consumption
Beam is to meet the access of multi-user, and therefore, the multi-beam phased array antenna mechanism in the embodiment of the present application, which has, improves multi-beam
The applicability of phased array antenna, the utilization ratio of satellite communication resource and the technique effect for reducing its application cost.
Specifically, the passive multiple beam forming network in the embodiment of the present application, including:
Passive microwave support plate 1031;
Passive work(divides radio frequency network 1032, is arranged on every layer of passive microwave support plate, including work(sub-module and signal transmission
Network, the work(sub-module is connect more with the N number of accesses for opening up pass, the radiofrequency signal work(of input is divided into K
A mapping subsignal, the transmission network export to map subsignal by described K;
Passive phasing transmission line 1033 is arranged on the passive microwave support plate and is connect with the transmission network, to
The K mapping subsignal of input is subjected to phase shift processing, forms the phase shift signal of M phase matched;
Passive power combining networks 1034 are arranged on the passive microwave support plate and connect with the passive phasing transmission line
It connects, M beam beamformer outputs is generated the phase shift signal of the M phase matched to be carried out to synthesis processing respectively.
That is, the orientation angle of the K wave beam, level angle can be by the passive multiple beam forming networks
Passive phasing transmission line determine, impart the common horizontal plane orientation angle of K wave beam of this row;The orientation angle packet of wave beam
It is to determine that the embodiment of the present application uses nothing on level angle by the phase shift value of the wave beam to include level angle and vertical angle all
Source phasing transmission line, the case where thus avoiding phase shift value that from can not changing.Can by it is described open up close select it is different passive
Phasing transmission line, to realize the change for being horizontally directed to angle;And very flexible digital phase shift value is then used in vertical dimension, it should
Value on processing unit by the digital channel of each wave beam (signal) by being determined.
As it can be seen that passive multiple beam forming network in the embodiment of the present application can also be by work(sub-module work(point treated K
A mapping subsignal carries out corresponding phase shift and synthesis processing respectively, while it is also an option that signal is carried out respective angles by property
Phase shift, the case where can not changing so as to avoid signal phase shift value, have improve TR component applicabilities technique effect.
Optionally, the work(sub-module in the embodiment of the present application includes:
N number of work(partial node, N number of work(partial node connect one to one more with the N number of accesses for opening up pass, institute
Work(partial node is stated the radiofrequency signal work(of input is divided into K mapping subsignal;
The transmission network includes K transmission lines, corresponded respectively by described K mapping subsignal output.
Due to the radiofrequency signal that each work(partial node can all the way be inputted with alignment processing, every layer of processing unit can incite somebody to action
The radiofrequency signal of the roads N input carries out independent work(point processing respectively, avoids and is penetrated to multiple input using a work(subset
When frequency signal carries out work(point processing respectively, it is possible that operation deviation or maloperation phenomenon.
Still optionally further, the passive phasing transmission line, including:
K phase shift processing unit, the K phase shift processing unit connect one to one with the K transmission lines, the shifting
Phase processor unit carries out phase shift processing to the mapping subsignal that will be inputted, and is formed and a phase matched in M phase
Phase shift signal.
Meanwhile the passive power combining networks in the embodiment of the present application include:
M synthesis node, each combined node pair should receive the shifting with the output of the phase shift processing unit of a phase matched
Phase signals, and the beamformer output is synthesized with phase matched phase shift signal by described, amount to synthesis M beam output waves
Beam.
That is, the technical solution in the embodiment of the present application can be directed in the K mapping subsignal that work(point is formed
Each signal carries out phase shift, transmission and synthesis processing using independent digital channel, to avoid multiple mapping subsignals from existing
Operation or operation deviation, therefore the technical solution in the embodiment of the present application are obscured when being handled in same channel caused by possibility
The also technique effect of the misuse rate with reduction system.
Further optionally, described passive in the embodiment of the present application in order to further decrease the power consumption of entire antenna
The material of microwave support plate is microwave plank of the loss less than predetermined loss value.And the passive work(divides radio frequency network setting to exist
On Rotman lens.It is further ensured that the power consumption of the antenna mechanism is minimum effect it is possible thereby to play.
It can be seen that the technical solution in the embodiment of the present application can pass through the roads the M radiofrequency signal that digital channel generates
Switching network switches over input on different time node and amounts to the roads N radiofrequency signal, and then in the horizontal dimension formation point of front
When existing N number of simulation fixed beam, the orientation angle of N number of fixed beam existing for above-mentioned timesharing is by passive phasing transmission line
What the fixation phase shift value of formation determined.The roads the M radiofrequency signal that digital channel generates simultaneously, per radiofrequency signal all the way by identical
K subsignal is constituted, and each digital channel can assign each subsignal different digital phase shift values, by switching network in difference
Switched on timing node input amount to the roads N radiofrequency signal in certain all the way, will be each by passive multiple beam forming network
Road radiofrequency signal work(is divided into the roads M radiofrequency signal, all units of entire antenna array are all encouraged, and then form a height
The aerial radiation wave beam of gain, since the radiofrequency signal of each array element radiation includes K subsignal, which is also
It is synthesized by K sub- signal beams.The digital phase shift value that K subsignal is assigned by digital channel is different, and then above-mentioned synthesis
The different angle of subsignal beam position in high-gain wave beam, wave beam are just formd while being deposited in the separation of the vertical dimensions of front
K digital beam.The phased array design uses simulation multi-beam phased array design method in level dimension, is adopted in vertical dimension
With digital multiple beam phased array design method, avoid need in the prior art level tie up increase digital channel with realize compared with
The mode of multi-beam, therefore can effectively reduce the power consumption of entire antenna system, ensure that realized under the conditions of low-power consumption it is more
Wave beam is to meet the access of multi-user, and therefore, the multi-beam phased array antenna mechanism in the embodiment of the present application, which has, improves more waves
The applicability of beam phased array antenna, the utilization ratio of satellite communication resource and the technique effect for reducing its application cost.
The embodiment of the present application at least also at least has the following technical effects or advantages:
Further, the technical solution in the embodiment of the present application can be with alignment processing all the way by the way that each work(partial node is arranged
The radiofrequency signal of input, therefore the radiofrequency signal that the roads N input can be carried out independent work(point processing respectively by every layer of processing unit,
Avoid when carrying out work(point processing respectively to the radiofrequency signal of multiple input using work(subset, it is possible that operation
Deviation or maloperation phenomenon, the technique effect with raising system processing accuracy.
Further, the passive multiple beam forming network in the embodiment of the present application can also will be after work(sub-module work(point processing
K mapping subsignal carry out corresponding phase shift and synthesis processing respectively, while be also an option that property signal is carried out it is corresponding
The phase shift of angle the case where can not changing so as to avoid signal phase shift value, has the technique effect for improving TR component applicabilities.
Further, the switching network in the embodiment of the present application is single pole multiple throw and the passive microwave
The material of support plate is microwave plank of the loss less than predetermined loss value.It is possible thereby to further effectively reduce the antenna mechanism
Production cost and application cost.
Although the preferred embodiment of the application has been described, created once a person skilled in the art knows basic
Property concept, then additional changes and modifications may be made to these embodiments.So it includes excellent that the following claims are intended to be interpreted as
It selects embodiment and falls into all change and modification of the application range.
Obviously, those skilled in the art can carry out the application essence of the various modification and variations without departing from the application
God and range.Further, each method and step in technical scheme can overturn, and convert sequencing and still fall
Enter in the invention scope that the application is covered.In this way, if these modifications and variations of the application belong to the application claim
And its within the scope of equivalent technologies, then the application is also intended to include these modifications and variations.
Claims (8)
1. a kind of multi-beam phased array antenna mechanism, which is characterized in that including:
It is identical to amount to the roads input M to export radiofrequency signal all the way for M base-band digital channel, each base-band digital channel
Radiofrequency signal, wherein each radiofrequency signal is made of K subsignal, and M is the integer more than or equal to 2, K for more than
Integer equal to 2;
M switching network, including M opens up passs, the M opens up pass with M base-band digital channel difference one by one
It is correspondingly connected with, and the pass that opens up includes N number of access more, only there are one accesses in N number of access on a timing node
In connected state, so that the radiofrequency signal all the way of input is exported from the access, N is the integer more than or equal to 2;
Passive multiple beam forming network, including M layers of processing unit, the M layers of processing unit close an a pair more with the M open up
It should connect, the processing unit maps subsignal the radiofrequency signal work(exported through the switching network is divided into K respectively,
And export M output line of feed-in after described K mapping subsignal synthesis processing to form M beam beamformer outputs, total acquisition M groups ×
M beam beamformer outputs;
M × M array-element antennas are connect with the passive multiple beam forming network, to emit the M groups × M beam beamformer outputs.
2. antenna mechanism as described in claim 1, which is characterized in that the processing unit, including:
Passive microwave support plate;
Passive work(divides radio frequency network, is arranged on the passive microwave support plate, including work(sub-module and signal transmission network, described
Work(sub-module is connect more with the N number of accesses for opening up pass, the radiofrequency signal work(of input is divided into K mapping son letter
Number, the transmission network exports to map subsignal by described K;
Passive phasing transmission line is arranged on the passive microwave support plate and is connect with the transmission network, to what will be inputted
The K mapping subsignal carries out phase shift processing, forms the phase shift signal of M phase matched;
Passive power combining networks are arranged on the passive microwave support plate and are connect with the passive phasing transmission line, to
The phase shift signal of the M phase matched is carried out to synthesis processing respectively and generates M beam beamformer outputs.
3. antenna mechanism as claimed in claim 2, which is characterized in that the work(sub-module includes:
N number of work(partial node, N number of work(partial node connect one to one more with the N number of accesses for opening up pass, the work(
Partial node maps subsignal the radiofrequency signal work(of input is divided into K;
The transmission network includes K transmission lines, corresponded respectively by described K mapping subsignal output.
4. antenna mechanism as claimed in claim 3, which is characterized in that the passive phasing transmission line, including:
K phase shift processing unit, the K phase shift processing unit connects one to one with the K transmission lines, at the phase shift
Reason unit carries out phase shift processing to the mapping subsignal that will be inputted, and forms the phase shift with a phase matched in M phase
Signal.
5. antenna mechanism as claimed in claim 4, which is characterized in that the passive power combining networks, including:
M synthesis node, each combined node pair should be received to be believed with the phase shift of the phase shift processing unit of phase matched output
Number, and the beamformer output is synthesized with phase matched phase shift signal by described, amount to synthesis M beam beamformer outputs.
6. antenna mechanism as described in claim 1, which is characterized in that the passes that open up are single pole multiple throw more.
7. antenna mechanism as claimed in claim 2, which is characterized in that the material of the passive microwave support plate is loss less than pre-
Determine the microwave plank of loss value.
8. the antenna mechanism as described in claim 1-7 any claims, which is characterized in that the passive work(divides radio frequency network
It is arranged on Rotman lens.
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