CN108872735A - Radio frequency applied to active phase array antenna vector modulator mentions number system and method - Google Patents
Radio frequency applied to active phase array antenna vector modulator mentions number system and method Download PDFInfo
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- CN108872735A CN108872735A CN201810393326.3A CN201810393326A CN108872735A CN 108872735 A CN108872735 A CN 108872735A CN 201810393326 A CN201810393326 A CN 201810393326A CN 108872735 A CN108872735 A CN 108872735A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
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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
- H04B17/12—Monitoring; Testing of transmitters for calibration of transmit antennas, e.g. of the amplitude or phase
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/10—Monitoring; Testing of transmitters
- H04B17/15—Performance testing
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Abstract
The invention discloses the radio frequencies for being applied to active phase array antenna vector modulator to mention number system, including vector modulator mentions several subsystems and active phase array antenna；Active phase array antenna includes antenna element and vector modulator unit；Vector modulator proposes the router unit in several subsystems and communicates to connect respectively with Devices to test mounting platform, vector network analyzer, probe platform, scanning platform and host computer, the vector network analyzer and probe platform communicate to connect, the probe platform and antenna element wireless communication connect, and the vector modulator unit is communicated to connect with host computer, antenna element and vector network analyzer respectively.System and method mechanization degree provided by the invention is high, high-efficient, can accomplish unattended；High reliablity, it is unreliable to avoid proposing several results caused by maloperation；Performance is good, can form preferable directional diagram.
Description
Technical field
The invention belongs to Radar Technology fields, and in particular to a kind of penetrating applied to active phase array antenna vector modulator
Frequency mentions number system and method.
Background technique
Vector modulator is all widely used in fields such as communication, radars, and vector modulator is by two-way independent input
I/Q signal voltage value is simulated to control the amplitude and phase of radiofrequency signal, main advantage is can to carry out amplitude and phase simultaneously
Adjustment and can be realized 360 degree of high-precision phase shift, have more application, in active phase array antenna in order to obtain mould
Quasi- IQ voltage value { I, Q } and amplitude-phaseMapping relations, it is conventionally employed pouring-in to propose several methods：I.e. vector
The output end of Network Analyzer passes through the input terminal of cable connected vector modulator, and the output end of vector modulator is connected by cable
The input terminal of vector network analyzer is connect, therefore the number that mentions of 1 vector modulator needs 4 dismounting cables.However it is modern active
The vector modulator of phased array antenna is up to dozens or even hundreds of, needs hundreds and thousands of dismounting using traditional counting method that mentions
Cable, therefore time-consuming leads to low efficiency, and dismount physical demands to cause cable to be easy installation greatly not in place, cause to propose several results
It is unreliable.
In order to form ideal directional diagram, it is desirable that the adjacent antenna units of active phase array antenna have ideal space width
Degree difference and phase difference, for the active phase array antenna for being integrated with vector modulator, vector modulator is used to believe radio frequency
Number carry out amplitude and phase control.But the amplitude-phase consistency of each antenna element is simultaneously non-ideal, and therefore, proposing several processes needs to consider
The width facial difference of antenna element.
Summary of the invention
It is provided by the invention applied to active phase array antenna vector modulator for above-mentioned deficiency in the prior art
Radio frequency mentions number system and method, realizes and proposes several mechanized operations, solve it is existing it is pouring-in propose several mode low efficiencys, can not
It leans on, consider the problems of each antenna element width facial difference.
In order to achieve the above object of the invention, the technical solution adopted by the present invention is：Applied to active phase array antenna vector
The radio frequency of modulator mentions number system, which is characterized in that mentions several subsystems and active phase array antenna including vector modulator；
The vector modulator mention several subsystems include Devices to test mounting platform, vector network analyzer, probe platform,
Scanning platform, router unit and host computer；
The active phase array antenna includes antenna element and vector modulator unit；
The router unit respectively with Devices to test mounting platform, vector network analyzer, probe platform, scanning platform
It is communicated to connect with host computer, the vector network analyzer and probe platform communicate to connect, the probe platform and antenna element
Wireless communication connection, the vector modulator unit are communicated to connect with host computer, antenna element and vector network analyzer respectively.
Further, the Devices to test mounting platform is for fixing active phase array antenna to be measured；
The probe platform is the platform for being equipped with electromagnetic horn；
The scanning platform is for driving probe platform to move in its X-axis and Y-axis；
The vector network analyzer receives amplitude, the phase of radiofrequency signal for sending and receiving radiofrequency signal, acquisition
Information；
The host computer sends IQ voltage for controlling Devices to test mounting platform, probe platform and scanning platform movement
Value receives and saves the amplitude and phase information of vector network analyzer acquisition；
The router unit is for connecting Devices to test mounting platform, probe platform, scanning platform, vector network analysis
Instrument and host computer make it carry out data communication.
Further, the host computer includes serial port unit and network unit；
The serial port unit is used to issue IQ voltage value to Vector Modulation unit, and the network unit is for controlling to be measured set
Standby mounting platform, probe platform and scanning platform movement, and receive the amplitude and phase information of vector network analyzer acquisition.
Further, the antenna element includes several antenna submatrixs, and vector modulator unit includes and antenna submatrix
Several corresponding vector modulators.
Radio frequency applied to active phase array antenna vector modulator mentions counting method, includes the following steps：
S1, active phase array antenna is placed on Devices to test mounting platform, and it is fixed；
S2, according to active phase array antenna frequency range, the electromagnetic horn of corresponding frequency range is installed in probe platform；
S3, according to the corresponding dwell point position of vector modulator each in active phase array antenna, adjust scanning platform
Kinematic parameter；
S4, transmission voltage IQ value is traversed to corresponding vector modulator by host computer, is adopted by vector network analyzer
Collect the amplitude and phase information of vector modulator signal in active phase array antenna, completion proposes several processes.
Further, the electromagnetic horn installed in the step S2 is close and is directed at the antenna list of active phase array antenna
Member, and the polarization direction of electromagnetic horn is identical as the polarization direction of active phase array antenna.
Further, in the step S3：
The dwell point is the central point of the Waveguide slot of each antenna submatrix；
The kinematic parameter of the scanning platform corresponds to coordinate of each dwell point in the X-axis and Y-axis of scanning platform.
Further, the step S4's is specially：
When scanning platform moves to some dwell point coordinate, be sent to bit flag to host computer, then host computer to
The corresponding vector modulator traversal of the dwell point sends IQ voltage value and controls its amplitude and phase, while vector network analyzer is defeated
Out radiofrequency signal by cable transmission to electromagnetic horn, and the antenna submatrix by being wirelessly transmitted in active phase array antenna and
In its corresponding vector modulator, the radiofrequency signal finally controlled by amplitude and phase is output to vector network point by cable
Analyzer, and its amplitude and phase information is acquired, it is uploaded to host computer, completion proposes several processes.
Further, the value range of the IQ voltage value is -1V~1V, stepping 0.1V.
Further, when acquiring the amplitude and phase information of some vector modulator signal, other are arranged in host computer
The IQ voltage value of vector modulator is { 0V, 0V }, corresponding maximum attenuation.
Beneficial effects of the present invention are：Radio frequency provided by the invention applied to active phase array antenna vector modulator mentions
Number system and method carry out mentioning number, realize and mention using several vector modulators of radio frequency method to active phase array antenna
Several mechanized operations；Mention several high-efficient, after the completion of parameter configuration, several processes that mention of vector modulator can be unattended；It can
By property height, it is unreliable to avoid proposing several results caused by operating mistake；The day of active phase array antenna is increased in mentioning several links
Line unit, therefore the mapping relations of the IQ voltage value that issues of host computer and its amplitude-phase have reacted the sky at final antenna element
Between amplitude and phase it is poor, to form comparatively ideal directional diagram.
Detailed description of the invention
Fig. 1 is that the radio frequency in embodiment provided by the invention applied to active phase array antenna vector modulator mentions number system
Structural block diagram.
Fig. 2 is that the radio frequency in embodiment provided by the invention applied to active phase array antenna vector modulator mentions counting method
Implementation flow chart.
Fig. 3 is the antenna element schematic diagram containing 64 antenna submatrixs in embodiment provided by the invention.
Specific embodiment
A specific embodiment of the invention is described below, in order to facilitate understanding by those skilled in the art this hair
It is bright, it should be apparent that the present invention is not limited to the ranges of specific embodiment, for those skilled in the art,
As long as various change is in the spirit and scope of the present invention that the attached claims limit and determine, these variations are aobvious and easy
See, all are using the innovation and creation of present inventive concept in the column of protection.
As shown in Figure 1, the radio frequency for being applied to active phase array antenna vector modulator mentions number system, including vector modulator
Mention several subsystems and active phase array antenna；It includes Devices to test mounting platform, vector that the vector modulator, which mentions several subsystems,
Network Analyzer, probe platform, scanning platform, router unit and host computer；The active phase array antenna includes antenna list
Member and vector modulator unit；The router unit is flat with Devices to test mounting platform, vector network analyzer, probe respectively
Platform, scanning platform and host computer communication connection, the vector network analyzer and probe platform communicate to connect, the probe platform
With antenna element wirelessly communicate connect, the vector modulator unit respectively with host computer, antenna element and vector network analysis
Instrument communication connection.
The RF output end output radiofrequency signal of above-mentioned vector network analyzer simultaneously passes through cable transmission to electromagnetic horn
Input port, antenna submatrix and its corresponding vector tune of the electromagnetic horn by wireless transmission radiofrequency signal to active phase array antenna
Device processed, radiofrequency signal are output to the rf inputs of vector network analyzer eventually by cable.
Devices to test mounting platform described above is for fixing active phase array antenna to be measured；The probe platform is installation
There is the platform of electromagnetic horn；The scanning platform is for driving probe platform to move in its X-axis and Y-axis；The vector network point
Analyzer receives amplitude, the phase information of radiofrequency signal for sending and receiving radiofrequency signal, acquisition；The host computer is for controlling
Devices to test mounting platform, probe platform and scanning platform movement, send IQ voltage value, receive and save vector network analyzer
The amplitude and phase information of acquisition；The router unit is for connecting Devices to test mounting platform, probe platform, scanning and put down
Platform, vector network analyzer and host computer make it carry out data communication.
Above-mentioned antenna element includes several antenna submatrixs, and vector modulator unit includes corresponding with antenna submatrix several
A vector modulator, the Waveguide slot in each antenna submatrix are that it corresponds to dwell point；Host computer includes serial port unit and net
Network unit；The serial port unit is used to issue IQ voltage value to vector modulator unit, and the network unit is to be measured for controlling
Equipment mounting platform, probe platform and scanning platform movement, and receive the amplitude and phase letter of vector network analyzer acquisition
Breath.
In one embodiment of the invention, as shown in Fig. 2, additionally providing applied to active phase array antenna Vector Modulation
The radio frequency of device mentions counting method, includes the following steps：
S1, active phase array antenna is placed on Devices to test mounting platform, and it is fixed；
As shown in figure 3, the antenna element of the active phase array antenna includes 64 antenna submatrixs, that is, it is corresponding with 64 vectors
Modulator and 64 Waveguide slots, each Waveguide slot have corresponding dwell point, are divided into Δ=10mm between each antenna submatrix,
And the active phase array antenna is located at Ku frequency range.
S2, according to active phase array antenna frequency range, the electromagnetic horn of corresponding frequency range is installed in probe platform；
Keep installation flat according to the electromagnetic horn of the Frequency Band Selection Ku frequency range of active phase array antenna, and by PC control
Platform rotation, so that electromagnetic horn is consistent with the polarization direction of active phase array antenna, finally declines probe platform, makes electromagnetic horn
Apart from active phase array antenna 5mm.
S3, according to the corresponding dwell point position of vector modulator each in active phase array antenna, adjust scanning platform
Kinematic parameter；
In above-mentioned steps S3, dwell point is the central point of antenna submatrix Waveguide slot；
As shown in figure 3, the dwell point in active phase array antenna shares 64, and the corresponding XY coordinate in scanning platform is
{(AX,AY),(AX+Δ,AY),…,(AX+63*Δ,AY)}.When initial, moved by PC control scanning platform, and drive
Probe platform, so that the center of electromagnetic horn is directed at the dwell point A in Fig. 3, the i.e. slit centers of antenna submatrix 1, follow up scan
Platform according to antenna submatrix number 1 to 64 sequential movements.
S4, transmission voltage IQ value is traversed to corresponding vector modulator by host computer, vector network analyzer acquisition has
The amplitude and phase information of vector modulator signal in the phased array antenna of source, completion propose several processes.
Above-mentioned steps S4 be specially：
When scanning platform moves to some dwell point coordinate, be sent to bit flag to host computer, then host computer to
The corresponding vector modulator traversal of the dwell point sends IQ voltage value and controls its amplitude and phase, while vector network analyzer is defeated
Out radiofrequency signal by cable transmission to electromagnetic horn, and the antenna submatrix by being wirelessly transmitted in active phase array antenna and
In its corresponding vector modulator, the radiofrequency signal finally controlled by amplitude and phase is output to vector network point by cable
Analyzer, and its amplitude and phase information is acquired, it is uploaded to host computer, completion proposes several processes.
The value range of above-mentioned IQ voltage value is -1V~1V, and stepping 0.1V, I and Q take 21 voltage values, combination
442 groups of voltage values are obtained, therefore when the amplitude and phase information of one vector modulator of every acquisition, 442 IQ voltages need to be issued
Value, vector network analyzer acquire 442 amplitude and phase information in 1 dwell point, at this time the IQ of other vector modulators
{ 0V, 0V } is fixedly installed in voltage value, i.e. maximum attenuation value, to reduce other vector modulators to the shadow of current collecting data information
It rings.
Radio frequency provided by the invention applied to active phase array antenna vector modulator mentions number system and method, using penetrating
Frequency mode carries out mentioning number to several vector modulators of active phase array antenna, realizes and proposes several mechanized operations；Mention number
High-efficient, after the completion of parameter configuration, several processes that mention of vector modulator can be unattended；High reliablity avoids operating mistake
It is caused that propose several results unreliable；The antenna element of active phase array antenna is increased in mentioning several links, therefore under host computer
The IQ voltage value of hair and the mapping relations of its amplitude-phase have reacted spatial extent and phase difference at final antenna element, thus
Form comparatively ideal directional diagram.
Claims (10)
1. the radio frequency for being applied to active phase array antenna vector modulator mentions number system, which is characterized in that including vector modulator
Mention several subsystems and active phase array antenna；
It includes Devices to test mounting platform, vector network analyzer, probe platform, scanning that the vector modulator, which mentions several subsystems,
Platform, router unit and host computer；
The active phase array antenna includes antenna element and vector modulator unit；
The router unit respectively with Devices to test mounting platform, vector network analyzer, probe platform, scanning platform and on
Position machine communication connection, the vector network analyzer and probe platform communicate to connect, and the probe platform and antenna element are wireless
Communication connection, the vector modulator unit are communicated to connect with host computer, antenna element and vector network analyzer respectively.
2. the radio frequency according to claim 1 applied to active phase array antenna vector modulator proposes number system, feature
It is,
The Devices to test mounting platform is for fixing active phase array antenna to be measured；
The probe platform is the platform for being equipped with electromagnetic horn；
The scanning platform is for driving probe platform to move in its X-axis and Y-axis；
The vector network analyzer receives amplitude, the phase information of radiofrequency signal for sending and receiving radiofrequency signal, acquisition；
The host computer sends IQ voltage value, connects for controlling Devices to test mounting platform, probe platform and scanning platform movement
Receive and save the amplitude and phase information of vector network analyzer acquisition；
The router unit for connect Devices to test mounting platform, probe platform, scanning platform, vector network analyzer and
Host computer makes it carry out data communication.
3. the radio frequency according to claim 2 applied to active phase array antenna vector modulator proposes number system, feature
It is, the host computer includes serial port unit and network unit；
The serial port unit is used to issue IQ voltage value to Vector Modulation unit, and the network unit is for controlling Devices to test peace
Assembling platform, probe platform and scanning platform movement, and receive the amplitude and phase information of vector network analyzer acquisition.
4. the radio frequency according to claim 1 applied to active phase array antenna vector modulator proposes number system, feature
Be, the antenna element includes several antenna submatrixs, vector modulator unit include it is corresponding with antenna submatrix several
Vector modulator.
5. the radio frequency for being applied to active phase array antenna vector modulator mentions counting method, which is characterized in that include the following steps：
S1, active phase array antenna is placed on Devices to test mounting platform, and it is fixed；
S2, according to active phase array antenna frequency range, the electromagnetic horn of corresponding frequency range is installed in probe platform；
S3, according to the corresponding dwell point position of vector modulator each in active phase array antenna, adjust the movement of scanning platform
Parameter；
S4, transmission voltage IQ value is traversed to corresponding vector modulator by host computer, had by vector network analyzer acquisition
The amplitude and phase information of vector modulator signal in the phased array antenna of source, completion propose several processes.
6. the radio frequency according to claim 4 applied to active phase array antenna vector modulator proposes counting method, feature
It is, the electromagnetic horn installed in the step S2 is close and is directed at the antenna element of active phase array antenna, and electromagnetic horn
Polarization direction it is identical as the polarization direction of active phase array antenna.
7. the radio frequency according to claim 4 applied to active phase array antenna vector modulator proposes counting method, feature
It is, in the step S3：
The dwell point is the central point of the Waveguide slot of each antenna submatrix；
The kinematic parameter of the scanning platform corresponds to coordinate of each dwell point in the X-axis and Y-axis of scanning platform.
8. the radio frequency according to claim 4 applied to active phase array antenna vector modulator proposes counting method, feature
It is, the step S4's is specially：
When scanning platform moves to some dwell point coordinate, it is sent to bit flag to host computer, then host computer is stayed to this
The corresponding vector modulator traversal in stationary point sends IQ voltage value and controls its amplitude and phase, while vector network analyzer output is penetrated
Frequency signal by cable transmission to electromagnetic horn, and the antenna submatrix by being wirelessly transmitted in active phase array antenna and its right
In the vector modulator answered, the radiofrequency signal finally controlled by amplitude and phase is output to vector network analysis by cable
Instrument, and its amplitude and phase information is acquired, it is uploaded to host computer, completion proposes several processes.
9. the radio frequency according to claim 8 applied to active phase array antenna vector modulator proposes counting method, feature
It is, the value range of the IQ voltage value is -1V~1V, stepping 0.1V.
10. the radio frequency according to claim 8 applied to active phase array antenna vector modulator proposes counting method, feature
It is：
When acquiring the amplitude and phase information of some vector modulator signal, the IQ of other vector modulators is arranged in host computer
Voltage value is { 0V, 0V }, corresponding maximum attenuation.
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| CN201810393326.3A CN108872735B (en) | 2018-04-27 | 2018-04-27 | Radio frequency number increasing system and method applied to active phased array antenna vector modulator |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109541562A (en) * | 2018-11-29 | 2019-03-29 | 成都锐芯盛通电子科技有限公司 | A kind of phased array antenna near field proposes several implementation methods |
| CN110401474A (en) * | 2019-07-26 | 2019-11-01 | 成都天锐星通科技有限公司 | A kind of phased antenna vector modulator control voltage determines method and system |
| CN117335898A (en) * | 2023-12-01 | 2024-01-02 | 成都华兴大地科技有限公司 | Method for quickly and automatically lifting number of TR module based on FPGA software |
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