CN108508393A - A kind of Multi probe Antenna testing system probe calibration system and calibration method - Google Patents
A kind of Multi probe Antenna testing system probe calibration system and calibration method Download PDFInfo
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- CN108508393A CN108508393A CN201810714237.4A CN201810714237A CN108508393A CN 108508393 A CN108508393 A CN 108508393A CN 201810714237 A CN201810714237 A CN 201810714237A CN 108508393 A CN108508393 A CN 108508393A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R35/00—Testing or calibrating of apparatus covered by the other groups of this subclass
- G01R35/005—Calibrating; Standards or reference devices, e.g. voltage or resistance standards, "golden" references
Abstract
The invention discloses a kind of probe calibration methods of Multi probe Antenna testing system,The Multi probe Antenna testing system includes turning table control module,Pass through the horizontal revolving stage and angle rotating platform controlled with turning table control module,Holder for foamed plastics or other non-metal kind materials above horizontal revolving stage and angle rotating platform,The calibration antenna being fixed on above holder,Network Analyzer for the amplitude of testing and phase,Method therefor of the present invention only needs move angle turntable 3 times and can be realized to the calibration of the amplitude and phase of all probes on Multi probe Antenna testing system and the number of unlimited probe with the mode of mathematics recursion,Greatly improve calibration speed,10 times faster than classical calibration fashion,And the dimensional turntable of system centre position is positioned in classical calibration fashion due to not using,Eliminate the reflection of electromagnetic wave error caused by the turntable,So that calibration is more accurate.
Description
Technical field
The present invention relates to Antenna testing system more particularly to a kind of Multi probe Antenna testing system probe calibration system and schools
Quasi- method.
Background technology
In recent years, as Multi probe antenna measurement technology is by the more and more extensive test for applying to wireless telecommunications system
Field also proposed more requirements for the calibration of Multi probe Antenna testing system.The accuracy requirement of calibration is higher and higher,
The method requirement of calibration is more and more simpler, and the rate request of calibration is getting faster.
Traditional Multi probe antenna calibration method requires, at the center of tested loop system, to set up a two-dimensional turntable,
It will be placed on above turntable for the antenna of calibration, in calibration process, turntable is carried out along the vertical plane of Multi probe aerial array
Rotation, and when calibration antenna is directed toward each probe, calibration antenna does 360 degree rotation；This calibration method is for two dimension
The placement of turntable and rotation precision requirement are high, and prover time is very long, and since dimensional turntable reflective surface area itself is larger,
A reverberation is equivalent in calibration process, to influence measuring accuracy；This calibration method queried by more and more and
It denounces.
Invention content
The object of the present invention is to provide a kind of quickly and effectively Multi probe Antenna testing system calibration methods, with number
The algorithm of recursion is learned, and combines the actual use of horizontal revolving stage and angle rotating platform, can be quick, accurately to Multi probe antenna
Test system into line amplitude and phase calibration, and due to the influence of not no dimensional turntable, the process and authentic testing of calibration
Environment is consistent, has preferably representative.
The technical solution that the present invention realizes is as described below：A kind of calibration method of Multi probe Antenna testing system is described more
Probe antenna test system includes data acquisition module, calibration factor analysis module, turning table control module, calibration antenna, plural number
A probe, horizontal revolving stage, angle rotating platform；A plurality of probes arrangement annular in shape, the data acquisition module and the calibration
Antenna, a plurality of probes, calibration factor analysis module are connected, and the calibration antenna is located at what a plurality of probes were surrounded
The center of ring, calibration antenna are fixed on horizontal revolving stage and angle rotating platform, and described method includes following steps：
The turning table control module controlled level turntable and angle rotating platform make calibration antenna be directed toward No. N probe, and wherein N is
Natural number, and horizontal revolving stage is made to be rotated 360/X times for X ° according to scheduled stepping, data acquisition module is adopted in each stepping position
Collect field intensity information；
The turning table control module control angle rotating platform makes calibration antenna be directed toward No. N-1 probe of Multi probe aerial array
The centre position popped one's head in No. N, and horizontal revolving stage is made to be rotated 360/X times for X ° according to scheduled stepping, data acquisition module is every
One stepping position acquires field intensity information；
The turning table control module control angle rotating platform makes calibration antenna be directed toward No. N probe of Multi probe aerial array and N
The centre position of+No. 1 probe, and horizontal revolving stage is made to be rotated 360/X times for X ° according to scheduled stepping, data acquisition module is every
One stepping position acquires field intensity information；
The calibration factor analysis module calculates the calibration of each probe according to the field intensity information that above step acquires
Coefficient.
Further, data acquisition module acquires the data of amplitude and phase in each stepping position.
Further, data acquisition module acquires 2 polarized field intensity informations in each stepping position.
Further, calibration factor analysis module calculates each each polarized calibration of popping one's head according to field intensity information
Coefficient.
Further, the horizontal revolving stage stepping X0Value range include：00<X<900.
Further, the Multi probe Antenna testing system further includes holder, and holder is fixedly arranged on horizontal revolving stage and angle turns
On platform, the holder supports the calibration antenna, and the calibration antenna is made to be located in the surrounded ring of a plurality of probes
Heart position.
Further, the horizontal revolving stage can rotate 360 degree in the horizontal direction, and calibration day is made when horizontal revolving stage rotates
The center of the center of the line ring surrounded with a plurality of probes keeps overlapping.
Further, the contact surface of the angle rotating platform and holder includes the surface for having concave surface arc, works as vertical direction
When the center of upper calibration antenna and the center of the surrounded ring of a plurality of probes are misaligned or have certain deviation, angle turn
Platform, which rotates corresponding angle, makes the center of the center ring surrounded with a plurality of probes of calibration antenna overlap.
In addition, a kind of probe calibration system of Multi probe Antenna testing system, including：Turning table control module, a plurality of spies
Head, calibration antenna, horizontal revolving stage, angle rotating platform, data acquisition module and calibration factor analysis module；It is described it is a plurality of probe be in
Annular arrangement, the turning table control module are connect with horizontal revolving stage and angle rotating platform, the data acquisition module with calibration antenna,
A plurality of probes are connected with calibration factor analysis module, and calibration antenna is fixed on horizontal revolving stage and angle rotating platform, calibrates antenna
Positioned at the center of a plurality of surrounded rings of popping one's head in.
Further, probe calibration system further includes holder, and the calibration antenna is set to the top of the holder, and holder is solid
On horizontal revolving stage and angle rotating platform.
Further, the contact surface of the angle rotating platform and holder includes the surface for having concave surface arc.
Further, the holder includes that high molecular material or metal material are made.
Further, the center of the rotation center of angle rotating platform and a plurality of surrounded rings of popping one's head in overlaps, and works as water
When flat turn platform rotates, the rotation center of angle rotating platform remains unchanged.
Further, the surfaces of revolution of the angle rotating platform and a plurality of surrounded plane of a loops of popping one's head in overlap.
Further, the calibration antenna includes single polarization electromagnetic horn or dual-polarization horn antenna.
Further, data acquisition module is connect with the calibration antenna and the probe by radio frequency coaxial-cable.
Horizontal revolving stage and angle rotating platform are connect by control line with turning table control module.
Rotatable 360 degree along horizontal direction of horizontal revolving stage.
Angle rotating platform can rotate at least along the vertical plane direction that Multi probe Antenna testing system linear transducer array forms
360/ (P+1) is spent, and wherein P is the quantity of probe.
Compared with prior art, the present invention has the advantages that：Multi probe Antenna testing system in the present invention is visited
Head calibration method, turning table control module controlled level turntable and angle rotating platform, adjusting the position of holder makes the calibration antenna position
In the center of a plurality of surrounded rings of popping one's head in, the present processes only need move angle turntable 3 times and use number
Learning the mode of recursion can realize to the calibration of the amplitude and phase of all probes on Multi probe Antenna testing system and unlimited
The number of probe, greatly improves calibration speed, 10 times faster than classical calibration fashion；And due to there is no to use conventional calibration side
It is positioned over the dimensional turntable of system centre position in formula, eliminates the reflection of electromagnetic wave error caused by the turntable so that calibration
It is more accurate.
Description of the drawings
Stepping type Multi probe Antenna testing system calibrating mode schematic diagram used in Fig. 1 present invention.
Fig. 2 tradition Multi probe Antenna testing system calibrating mode schematic diagrames.
System connection diagram when Fig. 3 present invention tests.
Flow chart specific implementation mode in Fig. 4 calibration processes of the present invention.
One example of flow chart in Fig. 5 calibration processes of the present invention.
One example of flow chart in Fig. 6 calibration processes of the present invention.
One example of flow chart in Fig. 7 calibration processes of the present invention.
Wherein, 1 is probe, and 2 by a plurality of rings surrounded of popping one's head in, and 3 be calibration antenna, and 4 be holder, and 5 be level
Turntable, 6 be angle rotating platform, 7 is data acquisition module, 8 is calibration factor analysis module, 9 is turning table control module.
Specific implementation mode
As shown in Fig. 1, Fig. 3, Fig. 4, Fig. 5, Fig. 6 and Fig. 7, the technical solution that the present invention realizes is as described below：It is a kind of more
Probe antenna tests the calibration method of system, and the Multi probe Antenna testing system includes data acquisition module 7, calibration factor point
Analyse module 8, turning table control module 9, calibration antenna 3, a plurality of probes 1, horizontal revolving stage 5, angle rotating platform 6；A plurality of spies
First 1 arrangement annular in shape, the data acquisition module 7 and the calibration antenna 3, a plurality of probes 1, calibration factor analysis module 8
It is connected, the calibration antenna 3 is located at the center for the ring 2 that a plurality of probes 1 are surrounded, and calibration antenna 3 is fixed on
On horizontal revolving stage 5 and angle rotating platform 6, described method includes following steps：9 controlled level turntable of turning table control module, 5 He
Angle rotating platform 6 makes calibration antenna 3 be directed toward No. N probe, and wherein N is natural number, and makes horizontal revolving stage 5 according to X ° of scheduled stepping
Rotation 360/X times, data acquisition module 7 acquire field intensity information in each stepping position；9 pilot angle of turning table control module
Degree turntable 6 makes calibration antenna 5 be directed toward the centre position of No. N-1 probe and No. N probe of Multi probe aerial array, and makes horizontal turn
Platform 5 rotates 360/X times for X ° according to scheduled stepping, and data acquisition module 7 acquires field intensity information in each stepping position；It is described
Turning table control module 9, which controls angle rotating platform 6, makes calibration antenna 3 be directed toward what No. N probe of Multi probe aerial array was popped one's head in No. N+1
Centre position, and horizontal revolving stage 5 is made to be rotated 360/X times for X ° according to scheduled stepping, data acquisition module 7 is in each stepping position
Set acquisition field intensity information；The calibration factor analysis module 8 calculates each spy according to the field intensity information that above step acquires
The calibration factor of head.
Each calculated each polarized calibration factor of popping one's head in is applied to each corresponding probe and polarization
Above, calibration is completed.
As shown in figures 1 and 3, calibration antenna 3 is located at the center of ring 2 that a plurality of probes 1 are surrounded, can be with
It is construed to calibrate the center of gravity of antenna 3 or geometric center is located at the center for the ring 2 that a plurality of probes 1 are surrounded, this
Position reduces influence of the turntable for calibration, keeps test more accurate.
As shown in Fig. 5, Fig. 6, Fig. 7, it is assumed that Multi probe Antenna testing system shares (2N+1) dual polarization probe, calibrates antenna
It is directed toward the probe (No. N probe) of Multi probe antenna array center position.
In step, calibration antenna 3 is directed toward the centre position and school of No. N-1 probe and No. N probe of Multi probe aerial array
Quasi- antenna 3 is directed toward the centre position of No. N probe and No. N+1 probe of Multi probe aerial array；There is no certain for this two steps
Sequencing, calibration antenna 3 can first be directed toward the centre position of Multi probe aerial array the N-1st probe and No. N probe, also may be used
It is first directed toward the centre position of No. N probe and No. N+1 probe of Multi probe aerial array, this two ways is in the protection of the present invention
In range.
As shown in figures 1 and 3, in addition, angle rotating platform 6 and the contact surface of holder 4 include the surface for having concave surface arc, in this way
Structure in vertical direction be easier adjust the angle, can the both ends of the bottom of angle rotating platform 6 have supporting rack, supporting rack
There is spring outside, if the transverse direction of the surfaces of revolution of angle rotating platform 6 is X axis, the junction of angle rotating platform 6 and holder 4 is origin, such as
Fruit calibration antenna 3 needs to rotate to the direction of the negative axis of X-axis, the control of turning table control module 9 be located at the supporting rack on negative axis to
Lower movement, the supporting rack on positive axis move upwards.
Compared with prior art, the present invention has the advantages that：Multi probe Antenna testing system in the present invention is visited
The position of head calibration method, 9 controlled level turntable 5 of turning table control module and angle rotating platform 6, adjustment holder 4 makes the calibration day
Line 3 is located at the center for the ring 2 that a plurality of probes 1 are surrounded, and the present processes only need move angle turntable 6 three times
And it can realize the calibration to the amplitude and phase of all probes on Multi probe Antenna testing system with the mode of mathematics recursion
And the number of unlimited probe, greatly improves calibration speed, 10 times faster than classical calibration fashion；And due to not having using biography
It is positioned over the dimensional turntable of system centre position in system calibrating mode, eliminates the reflection of electromagnetic wave error caused by the turntable,
So that calibration is more accurate.
Technical scheme of the present invention and mathematics deduction are as follows,
To system probe calibration process model building, standard iEEE (r, θ,) spheric coordinate system in, it is assumed thatIt is in arbitrary frequency point f, Horizon Angle PositionTest number of fields at given probe N
According to, T represents transposition here, whereinWith It is two of probe respectively
Orthogonal polarized test field data； It is in identical frequency point f, Horizon Angle Position
Test field data at probe N, wherein WithIt is probe respectively
Two orthogonal polarized test field datas.The calibration process of system probe is modeled as,
Here b=(b1b2)TRepresent noise；MatrixCoefficient related with probe calibration is represented, these
Coefficient and compensation probe amplitude response, phase response, the correlations such as polarization response and electrical property axis；To the mesh of equation (1) correction
Be to find such a 100001 matrix W of 2x2 specifications so that signalMatched signal x that can be optimalN
(f, φ), i.e.,
Optimum Matching matrix W can pass through minimumWithSecondary variance realize, i.e.,
Clearly work as and meets condition W=A-1When, the value of equation (3) is minimum, and equation (3) can be reduced to
Here 2 σ are noise power levels, and equation (1) is multiplied signal xNThe conjugate transposition of (f, φ+γ), here xN(f, φ+
It is γ) value at another Horizon Angle Position (φ+γ), can be obtained
Here subscript H represents conjugate transposition, continues to ask the mathematic expectaion of equation (5) that can obtain,
Ryx(f, γ)=ARxx(f, γ)+Rbx(f, γ) (6)
Wherein,
It is correlation matrix, noise and signal are uncorrelated, so having:Equation
(6) it can further be derived as:
Because of A-1It is and calibrates related matrix, A-1It is represented by,
Equation (8) shows that optimal calibration can be output and input according to system calibration, because equation (8) is to arbitrarily
Straight angle position is all set up, so we can shift out the inverse matrix of A onto,
It theoretically proves to have shifted the modeling process calibrated onto above, below for the calibration factor of top probe and except top is popped one's head in
The derivation of the calibration factor of every other probe in addition；
Assuming that using electromagnetic horn (being not limited to loudspeaker) calibration system, the signal x at central probe is
Here (A0；φ0) it is signal amplitude and phase at the probe；εhIt is to represent electromagnetic horn milli machine displacement
Parameter；Corresponding test field data can be expressed as,
The probe calibration coefficient of center probe can be by asking the inverse matrix of (11) to obtain；It is all in addition to center is popped one's head in
The calibration factor of other probes, can be by asking the inverse matrix of equation (3) to obtain, i.e.,
In the present invention, angle rotating platform 6 only needs turn 3 positions that can realize to owning on Multi probe Antenna testing system
The amplitude of probe 1 and the calibration of phase and the number of unlimited probe.
Technical solution in the application can calibrate all probes 1 so that its amplitude and phase during test application
Unanimously.
In the present invention, the effect of calibration antenna 3 is transmitting or receives the CW signals of different frequency range.
In the present invention, the effect of calibration factor analysis module 8 is to realize passive measurement i.e. detection calibration coefficient analysis mould
The S21 parameters of block 8.
In addition, data acquisition module 7 acquires the data of amplitude and phase in each stepping position.
Preferably, data acquisition module 7 acquires 2 polarized field intensity informations in each stepping position.
Preferably, calibration factor analysis module 8 calculates each each polarized calibration of popping one's head according to field intensity information
Coefficient.
In addition, the value range of X ° of 5 stepping of the horizontal revolving stage includes：0°<X<90°.
When the horizontal revolving stage 5 rotates 360 degree, the number of rotation can ensure to acquire the standard of information this value range
True property, to ensure the precision of entire Multi probe Antenna testing system.
As inscribed shown in 1 and Fig. 3, in addition, the Multi probe Antenna testing system further includes holder 4, holder 4 is fixedly arranged on water
On flat turn platform 5 and angle rotating platform 6, the holder 4 supports the calibration antenna 3, so that the calibration antenna 3 is located at described a plurality of
The center for the ring 2 that probe 1 is surrounded.
Preferably, the upper surface on the top of holder 4 has groove, calibrates antenna 3 for fixed placement, can reduce in this way
Itself reflective surface area of holder and calibration antenna is reduced, to improve measuring accuracy.
As inscribed shown in 1 and Fig. 3, in addition, the horizontal revolving stage 5 can rotate 360 degree in the horizontal direction, in horizontal revolving stage 5
Make the center of calibration antenna 3 when rotation and the center of ring 2 that a plurality of probes 1 are surrounded keeps overlapping.
As inscribed shown in 1 and Fig. 3, in addition, the angle rotating platform 6 and the contact surface of holder 4 include the table for having concave surface arc
Face, it is misaligned or have one when calibrating the center of ring 2 that the center of antenna 3 and a plurality of probes 1 are surrounded in vertical direction
When fixed deviation, angle rotating platform 6, which rotates corresponding angle, makes the center of calibration antenna 3 be surrounded with a plurality of probes 1
The center of ring 2 overlaps.
As inscribed shown in 1 and Fig. 3, in addition, a kind of probe calibration system of Multi probe Antenna testing system, including：Turntable control
Molding block 9, a plurality of probes 1, calibration antenna 3, horizontal revolving stage 5, angle rotating platform 6, data acquisition module 7 and calibration factor analysis
Module 8；Annularly arrangement, the turning table control module 9 are connect a plurality of probes 1 with horizontal revolving stage 5 and angle rotating platform 6,
The data acquisition module 7 is connect with calibration antenna 3, a plurality of probes 1 and calibration factor analysis module 8, and calibration antenna 3 is fixed
In on horizontal revolving stage 5 and angle rotating platform 6, calibration antenna 3 is located at the center for the ring 2 that a plurality of probes 1 are surrounded.
As inscribed shown in 1 and Fig. 3, in addition, probe calibration system further includes holder 4, the calibration antenna 3 is set to the branch
The top of frame 4, holder are fixedly arranged on horizontal revolving stage 5 and angle rotating platform 6.
In addition, the angle rotating platform 6 and the contact surface of holder 4 include the surface for having concave surface arc.
It is made in addition, the holder 4 includes high molecular material or metal material.
Preferably, the holder 4 includes foamed plastics or other non-metal kind materials.
As inscribed shown in 1 and Fig. 3, in addition, the rotation center of angle rotating platform 6 and a plurality of surrounded rings 2 of popping one's head in
Center overlaps, and when horizontal revolving stage 5 rotates, the rotation center of angle rotating platform 6 remains unchanged.
As inscribed shown in 1 and Fig. 3, in addition, the surfaces of revolution of the angle rotating platform 6 and a plurality of surrounded rings 2 of popping one's head in
Plane overlaps.
This ensures that the center of calibration antenna 3 and the center of ring 2 coincide.
In addition, the calibration antenna 3 includes single polarization electromagnetic horn or dual-polarization horn antenna.
In addition, data acquisition module 7 is connect with the calibration antenna 3 and the probe 1 by radio frequency coaxial-cable.
It is due to the advantages that radio frequency coaxial-cable signal transmission attenuation is small, strong antijamming capability using radio frequency coaxial-cable.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
All any modification, equivalent and improvement etc., should all be included in the protection scope of the present invention made by within refreshing and principle.
Claims (16)
1. a kind of probe calibration method of Multi probe Antenna testing system, the Multi probe Antenna testing system includes data acquisition
Module (7), calibration factor analysis module (8), turning table control module (9), calibration antenna (3), a plurality of probes (1), level turn
Platform (5) and angle rotating platform (6)；A plurality of probes (1) annularly arrange, the data acquisition module (7) and the calibration
Antenna (3), a plurality of probes (1), calibration factor analysis module (8) are connected, and the calibration antenna (3) is located at described a plurality of
The center for the ring that probe (1) is surrounded, calibration antenna (3) are fixed on horizontal revolving stage (5) and angle rotating platform (6), special
Sign is that described method includes following steps：
Turning table control module (9) the controlled level turntable (5) and angle rotating platform (6) make calibration antenna (3) be directed toward No. N probe
(1), wherein N is natural number, and horizontal revolving stage (5) is made to be rotated 360/X times for X ° according to scheduled stepping, data acquisition module (7)
Field intensity information is acquired in each stepping position；
Turning table control module (9) the control angle rotating platform (6) makes calibration antenna (3) be directed toward Multi probe aerial array the N-1st
The centre position of probe and No. N probe, and horizontal revolving stage (5) is made to be rotated 360/X times for X ° according to scheduled stepping, data acquisition module
Block (7) acquires field intensity information in each stepping position；
Turning table control module (9) the control angle rotating platform (6) makes calibration antenna (3) be directed toward No. N spy of Multi probe aerial array
The centre position of head and No. N+1 probe, and horizontal revolving stage (5) is made to be rotated 360/X times for X ° according to scheduled stepping, data acquisition module
Block (7) acquires field intensity information in each stepping position；
The calibration factor analysis module (8) calculates the calibration system of each probe according to the field intensity information that above step acquires
Number.
2. a kind of probe calibration method of Multi probe Antenna testing system according to claim 1, which is characterized in that data
Acquisition module (7) acquires the data of amplitude and phase in each stepping position.
3. a kind of probe calibration method of Multi probe Antenna testing system according to claim 1, which is characterized in that data
Acquisition module (7) acquires 2 polarized field intensity informations in each stepping position.
4. a kind of probe calibration method of Multi probe Antenna testing system according to claim 3, which is characterized in that calibration
Coefficient analysis module (7) calculates each each polarized calibration factor of popping one's head according to field intensity information.
5. a kind of probe calibration method of Multi probe Antenna testing system according to claim 1, which is characterized in that described
Horizontal revolving stage (5) stepping X0Value range include：00<X<900。
6. a kind of probe calibration method of calibration Multi probe Antenna testing system according to claim 1, which is characterized in that
The Multi probe Antenna testing system further includes holder (4), and holder (4) is fixedly arranged on horizontal revolving stage (5) and angle rotating platform (6),
The holder (4) supports the calibration antenna (3), and the calibration antenna (3) is made to be located at what a plurality of probes (1) were surrounded
The center of ring (2).
7. a kind of probe calibration method of Multi probe Antenna testing system according to claim 1, which is characterized in that described
Horizontal revolving stage (5) can rotate 360 degree in the horizontal direction, and center and the institute of calibration antenna (3) are made when horizontal revolving stage (5) rotate
The center for stating the ring (2) that a plurality of probes (1) are surrounded keeps overlapping.
8. a kind of probe calibration method of Multi probe Antenna testing system according to claim 6, which is characterized in that described
Angle rotating platform (5) and the contact surface of holder (4) include the surface for having concave surface arc, when calibration antenna (3) in vertical direction
When the center for the ring (2) that center and a plurality of probes (1) are surrounded is misaligned or has certain deviation, angle rotating platform (6)
The center for rotating the ring (2) that corresponding angle makes the center of calibration antenna (3) and a plurality of probes (1) be surrounded overlaps.
9. a kind of probe calibration system of Multi probe Antenna testing system, which is characterized in that including：Turning table control module (9) is answered
Several probes, calibration antenna (3), horizontal revolving stage (5), angle rotating platform (6), data acquisition module (7) and calibration factor analyze mould
Block (8)；A plurality of probes (1) annularly arrange, the turning table control module (9) and horizontal revolving stage (5) and angle rotating platform
(6) it connects, the data acquisition module (7) connects with calibration antenna (3), a plurality of probes (1) and calibration factor analysis module (8)
It connects, calibration antenna (3) is fixed on horizontal revolving stage (5) and angle rotating platform (6), and calibration antenna (3) is located at a plurality of probes
(1) center of the ring (2) surrounded.
10. a kind of probe calibration system of Multi probe Antenna testing system according to claim 9, which is characterized in that institute
It further includes holder (4) to state Multi probe Antenna testing system, and the calibration antenna (3) is set to the top of the holder (4), holder
(4) it is fixedly arranged on horizontal revolving stage (5) and angle rotating platform (6).
11. a kind of probe calibration system of Multi probe Antenna testing system according to claim 10, which is characterized in that institute
It includes the surface for having concave surface arc to state angle rotating platform (5) and the contact surface of holder (4).
12. a kind of probe calibration system of Multi probe Antenna testing system according to claim 10, which is characterized in that institute
It includes that high molecular material or metal material are made to state holder (4).
13. a kind of probe calibration system of Multi probe Antenna testing system according to claim 9, which is characterized in that angle
The center for the ring (2) that the rotation center of degree turntable (6) and a plurality of probes (1) are surrounded overlaps, when horizontal revolving stage (5) are revolved
When turning, the rotation center of angle rotating platform (6) remains unchanged.
14. a kind of probe calibration system of Multi probe Antenna testing system according to claim 9, which is characterized in that institute
The surfaces of revolution and described a plurality of ring (2) planes that (1) is surrounded of popping one's head in for stating angle rotating platform (6) overlap.
15. a kind of probe calibration system of Multi probe Antenna testing system according to claim 9, which is characterized in that institute
It includes single polarization electromagnetic horn or dual-polarization horn antenna to state calibration antenna (3).
16. a kind of probe calibration system of Multi probe Antenna testing system according to claim 9, which is characterized in that number
It is connect by radio frequency coaxial-cable with the calibration antenna (3) and the probe (1) according to acquisition module.
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| CN201810714237.4A CN108508393A (en) | 2018-07-03 | 2018-07-03 | A kind of Multi probe Antenna testing system probe calibration system and calibration method |
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| CN111190135A (en) * | 2020-01-14 | 2020-05-22 | 电子科技大学 | Calibration method suitable for any array |
| CN112578327A (en) * | 2020-12-01 | 2021-03-30 | 深圳市通用测试系统有限公司 | Calibration method, equipment and storage medium of spherical scanning test system |
| CN113242572A (en) * | 2020-06-23 | 2021-08-10 | 中兴通讯股份有限公司 | AAU (architecture analysis Unit) testing method and device and multi-probe wave-absorbing camera bellows |
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