CN117092416A - Testing system of active antenna - Google Patents
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- CN117092416A CN117092416A CN202210519039.9A CN202210519039A CN117092416A CN 117092416 A CN117092416 A CN 117092416A CN 202210519039 A CN202210519039 A CN 202210519039A CN 117092416 A CN117092416 A CN 117092416A
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- 238000012360 testing method Methods 0.000 title claims abstract description 174
- 230000005855 radiation Effects 0.000 claims abstract description 25
- 230000010287 polarization Effects 0.000 claims abstract description 16
- 239000000203 mixture Substances 0.000 claims description 13
- 230000005540 biological transmission Effects 0.000 claims description 9
- 230000033228 biological regulation Effects 0.000 claims description 3
- 230000007246 mechanism Effects 0.000 claims description 3
- 238000005516 engineering process Methods 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 8
- 238000004891 communication Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 230000035945 sensitivity Effects 0.000 description 4
- 238000005259 measurement Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000010998 test method Methods 0.000 description 3
- 239000011358 absorbing material Substances 0.000 description 2
- 230000010354 integration Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
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- 239000013307 optical fiber Substances 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R29/00—Arrangements for measuring or indicating electric quantities not covered by groups G01R19/00 - G01R27/00
- G01R29/08—Measuring electromagnetic field characteristics
- G01R29/10—Radiation diagrams of antennas
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R29/00—Arrangements for measuring or indicating electric quantities not covered by groups G01R19/00 - G01R27/00
- G01R29/08—Measuring electromagnetic field characteristics
- G01R29/10—Radiation diagrams of antennas
- G01R29/105—Radiation diagrams of antennas using anechoic chambers; Chambers or open field sites used therefor
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Abstract
The application provides a testing system of an active antenna, wherein the system comprises: the turntable module is provided with an Active Antenna Unit (AAU) to be tested and is used for driving the AAU to rotate; the test antenna module comprises a test antenna and an adjusting component, and is used for adjusting the pointing direction and the polarization direction of the test antenna so that the test antenna is aligned to the radio frequency radiation direction of the AAU. The application solves the technical problem of low efficiency of testing the AAU in the related technology and improves the OTA test efficiency of the multi-beam integrated active antenna.
Description
Technical Field
The application relates to the field of communication, in particular to a testing system of an active antenna.
Background
In the related art, an antenna of a base station antenna feeder system and an RRU (Remote Radio Unit, remote control radio unit) are mutually separated, the relative independent performances of the antenna and the RRU are not mutually influenced, and the respective performances can be tested through independent tests. The integrated active antenna is the integration of the antenna and the RRU, so that on one hand, interference factors such as electromagnetic coupling, active standing waves and the like cannot be completely eliminated; on the other hand, the calibration and amplitude-phase weighting of the active antenna are completed through the matching of a series of active devices on each radio frequency channel, and the mode of amplitude-phase weighting of the passive antenna array through a passive power division network is quite different. Therefore, for the 5G base station adopting the large-scale MIMO (Multiple Input Multiple Output ) active antenna technology, the radiation performance index of the integrated OTA test mode can be effectively reflected.
And OTA (Over-the-Air Technology) testing of the integrated active antenna is required to be tested by a near field test or far field test method in a microwave darkroom. The near field test and the far field test have advantages and disadvantages, the 3D directional diagram can be given by a single test of the near field test, the test efficiency is high, but the radio frequency radiation test result obtained after near-far conversion and the far field test result have no small difference at present, and the accuracy of the test result cannot be ensured. The far field test is the most direct test mode, when the test distance is larger than the judgment basis d=2D≡2/lambda, the incident wave approximates to a plane wave on the receiving surface, and the OTA indexes such as a beam forming direction diagram of the integrated active antenna, EIRP (EIRP Effective Isotropic Radiated Power effective isotropic radiation power), EIS (Equivalent Isotropic Sensitivity ) and the like can be directly obtained. But in far field test, a section of the radiating spherical surface of the antenna can be obtained only by rotating a tested antenna of a single receiving horn for one circle, and the test efficiency is low. Especially for the multi-beam integrated active antenna adopting Massive MIMO, a plurality of beams of the multi-beam integrated active antenna work in different directions, and the traditional far-field testing method is certainly time-consuming and labor-consuming, and the testing efficiency is affected, so that the method has the defect.
In view of the above problems in the related art, an effective solution has not been found.
Disclosure of Invention
The embodiment of the application provides a testing system of an active antenna, which at least solves the problems in the related art.
According to an embodiment of the present application, there is provided a test system of an active antenna including: the turntable module is provided with an Active Antenna Unit (AAU) to be tested and is used for driving the AAU to rotate; the test antenna module comprises a test antenna and an adjusting component, and is used for adjusting the pointing direction and the polarization direction of the test antenna so that the test antenna is aligned to the radio frequency radiation direction of the AAU.
Optionally, the turntable module includes: the horizontal driving assembly is used for driving the AAU to rotate in the horizontal direction; and the height driving assembly is used for adjusting the height of the AAU in the vertical direction.
Optionally, the horizontal driving assembly includes: the product fixing platform is fixedly connected with the AAU; the bottom turntable is used for fixing the turntable module; the transmission rod is connected between the product fixing platform and the bottom turntable, is connected with the product fixing platform and the bottom turntable to form a transmission connecting mechanism, and drives the product fixing platform to rotate in the horizontal direction so as to drive the AAU to rotate in the horizontal direction.
Optionally, the height drive assembly comprises: a product supporting bar for supporting the AAU in a vertical direction; and the air cylinder is connected with the product supporting rod and is used for adjusting the height of the product supporting rod, so that the height of the AAU in the vertical direction is adjusted in a linkage manner.
Optionally, the test antenna module includes: the horizontal test assembly comprises a first test antenna group in the horizontal direction and a first adjusting assembly, wherein the first adjusting assembly is used for adjusting the pointing direction and the polarization direction of the first test antenna group in the horizontal direction, the first test antenna group comprises a plurality of first receiving antennas, and each first receiving antenna covers an angle range in the horizontal direction; the vertical test assembly comprises a second test antenna group in the vertical direction and a second adjusting assembly, wherein the second adjusting assembly is used for adjusting the direction and the polarization direction of the second test antenna group in the vertical direction, the second test antenna group comprises a plurality of second receiving antennas, and each second receiving antenna covers one latitude range of the spherical surface.
Optionally, the first adjusting assembly includes: the first angle adjusting slide block is matched with a locking knob on the first slide rail and used for adjusting the fixed position of the first test antenna group in the horizontal direction on the first slide rail.
Optionally, the second adjusting assembly includes: the second angle adjusting slide block is matched with a locking knob on the second slide rail and used for adjusting the fixed position of the second test antenna group in the vertical direction on the second slide rail.
Optionally, the test antenna module further includes: the support column, altitude mixture control pole, angle adjustment base, the support column is fixed on the angle adjustment base, altitude mixture control pole movably install in on the support column, the second regulation subassembly is fixed in on the altitude mixture control pole, altitude mixture control pole movably with the angle adjustment base is connected.
Optionally, the test antenna module further includes: the first acquisition unit is used for simultaneously acquiring the equivalent omnidirectional radiation power EIRP of the M preset beam directives of the AAU in the horizontal direction when the M preset beam directives of the AAU are aligned one by the M test antennas of the first test antenna group, wherein M is a positive integer larger than 1; and/or a second obtaining unit, configured to obtain, when N test antennas of the second test antenna group are aligned to N predetermined beam directions of the AAU one by one, an equivalent omnidirectional radiation power EIRP of the N predetermined beam directions of the AAU in a vertical direction, where N is a positive integer greater than 1.
Alternatively, m=8, n=8.
The application comprises a turntable module and a test antenna module, wherein the turntable module is provided with an active antenna unit AAU to be tested and used for driving the AAU to rotate, the test antenna module comprises a test antenna and an adjusting component and is used for adjusting the pointing direction and the polarization direction of the test antenna so as to lead the test antenna to be aligned with the radio frequency radiation direction of the AAU, the turntable module and the test antenna module can be mutually matched in space, and simultaneously can simulate the OTA index condition close to the communication between an actual user and a communication base station, thereby solving the technical problem of low efficiency of the related art test AAU and improving the OTA test efficiency of the multi-beam integrated active antenna.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the application and do not constitute a limitation on the application. In the drawings:
fig. 1 is a block diagram of a test system for an active antenna according to an embodiment of the present application;
FIG. 2 is a schematic diagram of a transfer module according to an embodiment of the present application;
fig. 3 is a schematic structural diagram of a test antenna module according to an embodiment of the application;
FIG. 4 is a schematic front view of the overall structure of an OTA test scheme according to an embodiment of the application;
fig. 5 is a top view of an OTA test performed in an embodiment of the application.
Detailed Description
The application will be described in detail hereinafter with reference to the drawings in conjunction with embodiments. It should be noted that, without conflict, the embodiments of the present application and features of the embodiments may be combined with each other.
It should be noted that the terms "first," "second," and the like in the description and the claims of the present application and the above figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order.
Example 1
In this embodiment, there is provided a testing system for an active antenna, and fig. 1 is a structural diagram of the testing system for an active antenna according to an embodiment of the present application, as shown in fig. 1, the system includes:
the turntable module 10 is provided with an active antenna unit AAU to be tested and is used for driving the AAU to rotate;
alternatively, the AAU can be axially rotated along the stationary shaft at different height positions.
The test antenna module 20 includes a test antenna and an adjusting component for adjusting the pointing direction and the polarization direction of the test antenna so that the test antenna is aligned with the radio frequency radiation direction of the AAU.
The embodiment can be applied to a test environment of far-field test. In one example, the AAU includes a plurality of directional beams, the pointing direction and the polarization direction of the test antenna are adjusted so that the test antenna is aligned with the beam direction of the AAU, the number of test antennas is the same as the number of AAU beams, and the receiving direction of the test antenna is the same as the radiation direction of the AAU beams.
Through above-mentioned system, including revolving stage module and test antenna module, revolving stage module is equipped with the active antenna unit AAU of waiting to test for the drive AAU rotates, test antenna module, including test antenna and adjusting part, be used for adjusting the directional and the polarization direction of test antenna, so that test antenna aims at the radio frequency radiation direction of AAU, revolving stage module and test antenna module can mutually support in the space, can simulate simultaneously and be close to the OTA index condition when communicating between actual user and the communication base station, have solved the technical problem that the efficiency of correlation technique test AAU is low, improve the OTA test efficiency of the active antenna of multibeam integration.
Optionally, the turntable module includes: the horizontal driving assembly is used for driving the AAU to rotate in the horizontal direction; and the height driving assembly is used for adjusting the height of the AAU in the vertical direction.
In one implementation of this embodiment, the horizontal drive assembly includes: the product fixing platform is fixedly connected with the AAU; the bottom turntable is used for fixing the turntable module; the transmission rod is connected between the product fixing platform and the bottom turntable, is connected with the product fixing platform and the bottom turntable to form a transmission connecting mechanism, and drives the product fixing platform to rotate in the horizontal direction so as to drive the AAU to rotate in the horizontal direction.
In one implementation of this embodiment, the height drive assembly comprises: a product supporting bar for supporting the AAU in a vertical direction; and the air cylinder is connected with the product supporting rod and is used for adjusting the height of the product supporting rod, so that the height of the AAU in the vertical direction is adjusted in a linkage manner.
The revolving stage module is through adopting the structure of cylinder and bracing piece for the altitude mixture control is steady and accurate.
Fig. 2 is a schematic structural diagram of a transfer module according to an embodiment of the present application, including: the product fixing platform 10, the transmission rod 11, the support rod 12, the air cylinder 13, the bottom turntable 14, a product 15 to be tested (AUU in the embodiment), the calibration horn antenna 16 and the radio frequency connector 17, wherein the product fixing platform, the transmission rod and the bottom turntable are connected to form transmission connection, the product fixing turntable can be driven to horizontally rotate, the product support rod and the air cylinder combination can support height adjustment, and the power supply and control assembly is connected with the bottom turntable, the calibration horn antenna and the radio frequency connector; standard antennas used in the calibration horn antenna test procedure are used to provide reference signals during the test procedure.
In some examples of this embodiment, the test antenna module includes: the horizontal test assembly comprises a first test antenna group in the horizontal direction and a first adjusting assembly, wherein the first adjusting assembly is used for adjusting the pointing direction and the polarization direction of the first test antenna group in the horizontal direction, the first test antenna group comprises a plurality of first receiving antennas, and each first receiving antenna covers an angle range in the horizontal direction; the vertical test assembly comprises a second test antenna group in the vertical direction and a second adjusting assembly, wherein the second adjusting assembly is used for adjusting the direction and the polarization direction of the second test antenna group in the vertical direction, the second test antenna group comprises a plurality of second receiving antennas, and each second receiving antenna covers one latitude range of the spherical surface.
The test antenna module can be adjusted in X, Z direction and 4 dimensions of the test antenna pointing angle, so that debugging of different products can be conveniently tested.
Optionally, the first adjusting assembly includes: the first angle adjusting slide block is matched with a locking knob on the first slide rail and used for adjusting the fixed position of the first test antenna group in the horizontal direction on the first slide rail.
Optionally, the second adjusting assembly includes: the second angle adjusting slide block is matched with a locking knob on the second slide rail and used for adjusting the fixed position of the second test antenna group in the vertical direction on the second slide rail.
Optionally, the test antenna module further includes: the support column, altitude mixture control pole, angle adjustment base, the support column is fixed on the angle adjustment base, altitude mixture control pole movably install in on the support column, the second regulation subassembly is fixed in on the altitude mixture control pole, altitude mixture control pole movably with the angle adjustment base is connected.
Fig. 3 is a schematic structural diagram of a test antenna module according to an embodiment of the present application, including: the antenna system comprises a support column 18, an X-direction test antenna group 19, an X-direction slide rail and angle adjusting slide block 20, a Z-direction test antenna group 21, a Z-direction slide rail and angle adjusting slide block 22, a height adjusting rod 23 and an angle adjusting base 24. The support column is fixed in on the angle modulation base, and the height adjustment pole is movably adorned on the support column, and Z is fixed in on the height adjustment pole to the slide rail, and X is to slide rail movably and Z to slide rail connection, and the angle modulation slider is movably adorned on the slide rail, and the height adjustment pole is movably connected with the angle modulation seat, installs the test antenna group on the angle modulation slider. Wherein, X direction refers to the horizontal direction of the earth coordinate system, and Z direction refers to the vertical direction of the earth coordinate system.
In one implementation of this embodiment, the system further comprises: the system comprises a radio frequency connector, a power supply and control assembly, an external environment, a test instrument, and the turntable module and the test antenna module in the embodiment. The radio frequency connector is connected with the calibration horn antenna, the test instrument is used for displaying test results obtained in the test process, such as index values and the like, and the test environment also comprises a darkroom and a wave absorbing material.
Fig. 4 is a schematic front view of the overall structure of an OTA test scheme according to an embodiment of the present application, including: darkroom 1, wave absorbing material 2, product revolving stage module 3, AAU4, test antenna module 5, radio frequency connector 6, power and control assembly 7, external environment 8, test instrument 9.
Optionally, the test antenna module further includes: the first acquisition unit is used for simultaneously acquiring the equivalent omnidirectional radiation power EIRP of the M preset beam directives of the AAU in the horizontal direction when the M preset beam directives of the AAU are aligned one by the M test antennas of the first test antenna group, wherein M is a positive integer larger than 1; in one example, m=8; the second obtaining unit is configured to obtain, when N test antennas of the second test antenna group are aligned with N predetermined beam directives of the AAU one by one, an equivalent omni-directional radiation power EIRP of the N predetermined beam directives of the AAU in a vertical direction at the same time, where N is a positive integer greater than 1. In one example, n=8.
Through the cooperation of the locking knob on angle adjusting slider and the slide rail, can be in X and Z to the slide rail on the adjustment position, test antenna cooperatees with the locking knob on the angle adjusting slider, can adjust test antenna's pointing direction and polarization direction, obtains the OTA index of the product of being surveyed fast based on first test antenna group and second test antenna group under the microwave darkroom far field measuring environment.
Fig. 5 is a top view of an OTA test in an embodiment of the present application, where the beam direction and the arrival angle range (Range of Angle of Arrival, roAoA) of the AAU are known, and the number of the first test antenna group and the second test antenna group is 8, and in the actual test process, by aligning the 8 test antennas of the X-directional antenna group (the first test antenna group in the horizontal direction) with 8 predetermined beam directions of the AAU to be tested, and simultaneously aligning the polarization directions of the antennas, the 8 test antennas can obtain the beam gains Gt of the test antennas in the 8 predetermined directions through one measurement, so that the equivalent omni-directional radiation power of each beam can be quickly obtained: eirp=p in *Gt，P in In order to test the input power of the antenna, the same effect is achieved on the same indexes such as OTA sensitivity and the like.
Meanwhile, for test indexes such as TRP and radiation patterns, as the test antenna group formed by 8 receiving antennas is adopted in the X direction (horizontal direction) and the Z direction (vertical direction), 8 different latitudes are covered in the Z direction, 8 different angles (corresponding to longitudes of a spherical coordinate system) are covered in the X direction, and the tested AAU turntable can acquire the horizontal section radiation patterns of the AAU at 8 latitudes of the Z axis only by rotating a single beam width in the X direction, so that the radiation pattern test efficiency can be greatly improved.
In the course of the test of the TRP indicator,i is any test antenna in the first test antenna group, j is any test antenna in the second test antenna group, N points are taken in all longitudinal directions and M points are taken in all latitudinal directions on a radiation spherical surface, and equivalent omnidirectional radiation power EIRP in two polarization directions is measured first, and the test time of the index can be greatly saved because a plurality of test angles are covered in the X direction and the Z direction. The zenith angle between the line of origin to the test point P (coordinate point of the test antenna in the spherical coordinate system) and the positive Z axis is θ, the projection line of the test point P in the xy plane, and the azimuth angle between the X axis is +.>
When testing is executed, the AAU of the product to be tested is placed on the turntable module, the signal of the test antenna unit in the uplink test is provided by an external instrument to carry out space electromagnetic radiation, the AAU in the downlink test is connected with an external environment through an optical fiber, and a test control end (computer) respectively controls the AAU and the external instrument to complete the signal transmitting and receiving processes of the product and the test antenna, so that the test of the whole radio frequency index data automatic acquisition of the tested product is completed.
By adopting the scheme of the embodiment, the measurement results of the radio frequency radiation indexes of a plurality of beams can be obtained at one time through single OTA measurement under far field conditions, which is beneficial to improving the test efficiency of OTA indexes such as EIRP, TRP, OTA sensitivity, OTA reference sensitivity, radiation pattern and the like of the multi-beam integrated active antenna. Meanwhile, the scene simulation is close to the OTA index condition during communication between the actual user and the communication base station, so that the test efficiency can be improved, and meanwhile, whether the radiation performance indexes such as the beam orientation of the tested base station meet the expected OTA index requirement can be better reflected.
It should be noted that each of the above modules may be implemented by software or hardware, and for the latter, it may be implemented by, but not limited to: the modules are all located in the same processor; alternatively, the above modules may be located in different processors in any combination.
It will be appreciated by those skilled in the art that the modules or steps of the application described above may be implemented in a general purpose computing device, they may be concentrated on a single computing device, or distributed across a network of computing devices, they may alternatively be implemented in program code executable by computing devices, so that they may be stored in a memory device for execution by computing devices, and in some cases, the steps shown or described may be performed in a different order than that shown or described, or they may be separately fabricated into individual integrated circuit modules, or multiple modules or steps within them may be fabricated into a single integrated circuit module for implementation. Thus, the present application is not limited to any specific combination of hardware and software.
The above description is only of the preferred embodiments of the present application and is not intended to limit the present application, but various modifications and variations can be made to the present application by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the principle of the present application should be included in the protection scope of the present application.
Claims (10)
1. A system for testing an active antenna, comprising:
the turntable module is provided with an Active Antenna Unit (AAU) to be tested and is used for driving the AAU to rotate;
the test antenna module comprises a test antenna and an adjusting component, and is used for adjusting the pointing direction and the polarization direction of the test antenna so that the test antenna is aligned to the radio frequency radiation direction of the AAU.
2. The system of claim 1, wherein the turntable module comprises:
the horizontal driving assembly is used for driving the AAU to rotate in the horizontal direction;
and the height driving assembly is used for adjusting the height of the AAU in the vertical direction.
3. The system of claim 2, wherein the horizontal drive assembly comprises:
the product fixing platform is fixedly connected with the AAU;
the bottom turntable is used for fixing the turntable module;
the transmission rod is connected between the product fixing platform and the bottom turntable, is connected with the product fixing platform and the bottom turntable to form a transmission connecting mechanism, and drives the product fixing platform to rotate in the horizontal direction so as to drive the AAU to rotate in the horizontal direction.
4. The system of claim 2, wherein the height drive assembly comprises:
a product supporting bar for supporting the AAU in a vertical direction;
and the air cylinder is connected with the product supporting rod and is used for adjusting the height of the product supporting rod, so that the height of the AAU in the vertical direction is adjusted in a linkage manner.
5. The system of claim 1, wherein the test antenna module comprises:
the horizontal test assembly comprises a first test antenna group in the horizontal direction and a first adjusting assembly, wherein the first adjusting assembly is used for adjusting the pointing direction and the polarization direction of the first test antenna group in the horizontal direction, the first test antenna group comprises a plurality of first receiving antennas, and each first receiving antenna covers an angle range in the horizontal direction;
the vertical test assembly comprises a second test antenna group in the vertical direction and a second adjusting assembly, wherein the second adjusting assembly is used for adjusting the direction and the polarization direction of the second test antenna group in the vertical direction, the second test antenna group comprises a plurality of second receiving antennas, and each second receiving antenna covers one latitude range of the spherical surface.
6. The system of claim 5, wherein the first adjustment assembly comprises: the first angle adjusting slide block is matched with a locking knob on the first slide rail and used for adjusting the fixed position of the first test antenna group in the horizontal direction on the first slide rail.
7. The system of claim 5, wherein the second adjustment assembly comprises: the second angle adjusting slide block is matched with a locking knob on the second slide rail and used for adjusting the fixed position of the second test antenna group in the vertical direction on the second slide rail.
8. The system of claim 5, wherein the test antenna module further comprises: the support column, altitude mixture control pole, angle adjustment base, the support column is fixed on the angle adjustment base, altitude mixture control pole movably install in on the support column, the second regulation subassembly is fixed in on the altitude mixture control pole, altitude mixture control pole movably with the angle adjustment base is connected.
9. The system of claim 5, wherein the test antenna module further comprises:
the first acquisition unit is used for simultaneously acquiring the equivalent omnidirectional radiation power EIRP of the M preset beam directives of the AAU in the horizontal direction when the M preset beam directives of the AAU are aligned one by the M test antennas of the first test antenna group, wherein M is a positive integer larger than 1; and/or the number of the groups of groups,
the second obtaining unit is configured to obtain, when N test antennas of the second test antenna group are aligned with N predetermined beam directives of the AAU one by one, an equivalent omni-directional radiation power EIRP of the N predetermined beam directives of the AAU in a vertical direction at the same time, where N is a positive integer greater than 1.
10. The system of claim 9, wherein m=8 and n=8.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210519039.9A CN117092416A (en) | 2022-05-12 | 2022-05-12 | Testing system of active antenna |
| PCT/CN2022/140353 WO2023216595A1 (en) | 2022-05-12 | 2022-12-20 | Test system for active antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210519039.9A CN117092416A (en) | 2022-05-12 | 2022-05-12 | Testing system of active antenna |
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| CN117092416A true CN117092416A (en) | 2023-11-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202210519039.9A Pending CN117092416A (en) | 2022-05-12 | 2022-05-12 | Testing system of active antenna |
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| CN (1) | CN117092416A (en) |
| WO (1) | WO2023216595A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN117388588A (en) * | 2023-12-11 | 2024-01-12 | 中国电子科技集团公司第二十九研究所 | Engineering measurement system of VHF or UHF frequency band wide beam antenna pattern |
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| JP6337030B2 (en) * | 2016-01-29 | 2018-06-06 | アンリツ株式会社 | Massive-MIMO antenna measuring apparatus and directivity measuring method thereof |
| CN107255756A (en) * | 2017-07-02 | 2017-10-17 | 中国航空工业集团公司雷华电子技术研究所 | A kind of phased array antenna near-field pattern parallel test system and method for testing |
| ES2954459T3 (en) * | 2018-10-09 | 2023-11-22 | Emite Ingenieria S L | Compact multi-band range testing system, from near field to far field and direct far field |
| CN209821290U (en) * | 2018-11-21 | 2019-12-20 | 上海益麦电磁技术有限公司 | Compact range antenna testing device based on 3D probe array |
| CN210894514U (en) * | 2019-05-29 | 2020-06-30 | 成都天成电科科技有限公司 | Phased array antenna test system |
| CN110418364B (en) * | 2019-08-30 | 2022-07-29 | 京信网络***股份有限公司 | OTA test system, calibration and test method and device |
| US11867738B2 (en) * | 2020-06-30 | 2024-01-09 | The Board Of Regents Of The University Of Oklahoma | Multipurpose millimeter-wave radio frequency system and methods of use |
| CN114124250B (en) * | 2020-08-31 | 2023-03-10 | 华为技术有限公司 | Radio frequency consistency test system of millimeter wave terminal equipment |
| CN113890637B (en) * | 2021-08-26 | 2023-07-21 | 广东工业大学 | Millimeter wave active antenna OTA test system and method and calibration method |
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2022
- 2022-05-12 CN CN202210519039.9A patent/CN117092416A/en active Pending
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117388588A (en) * | 2023-12-11 | 2024-01-12 | 中国电子科技集团公司第二十九研究所 | Engineering measurement system of VHF or UHF frequency band wide beam antenna pattern |
| CN117388588B (en) * | 2023-12-11 | 2024-03-01 | 中国电子科技集团公司第二十九研究所 | Engineering measurement system of VHF or UHF frequency band wide beam antenna pattern |
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