CN217820043U - Quick detection device of base station antenna - Google Patents
Quick detection device of base station antenna Download PDFInfo
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- CN217820043U CN217820043U CN202221180907.7U CN202221180907U CN217820043U CN 217820043 U CN217820043 U CN 217820043U CN 202221180907 U CN202221180907 U CN 202221180907U CN 217820043 U CN217820043 U CN 217820043U
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Abstract
The utility model discloses a base station antenna rapid detection device, which comprises a multi-probe frame and an antenna fixing table, wherein the antenna fixing table is provided with an antenna to be detected, the multi-probe frame is provided with a plurality of test probes, and the test probes are arranged in the same straight line direction to form a first linear probe array; the first linear probe array is arranged above the antenna to be tested and points to the antenna to be tested; the probe switching unit is arranged corresponding to the test probes, electrically connected with the test probes and respectively controlling the switch of each test probe. The device can quickly and accurately detect the antenna product of the base station, accurately position the detected defects, and also has near-far field conversion and aperture field inversion functions.
Description
Technical Field
The utility model relates to an antenna detects technical field, especially, relates to a quick detection device of base station antenna.
Background
With the increasing application of smart base station antennas and multi-band base stations, the process flow of the base station antenna is more and more complex, however, many steps in the current production flow still need to be completed manually, which brings a challenge to the reliability of the base station antenna production, how to efficiently ensure the yield of the antenna product becomes a problem that the base station antenna manufacturer has to face, and in order to deal with the problem, the antenna product is usually required to be detected.
Near field measurement is one of the traditional methods for characterizing antenna radiation patterns, and for array antennas (such as base station antennas), the measured antenna is located at a fixed position, a probe moves on a plane and scans a radiation field, and sampling is carried out at a Nyquist rate to carry out full-plane measurement; in the process, the probe needs to be moved to each detection position in sequence to perform detection one by one, so that a long acquisition time needs to be ensured, and how to reduce the detection time becomes a key problem.
In view of the above problems, it is desirable to provide a detection apparatus capable of detecting a base station antenna product quickly and accurately locating a detected defect.
SUMMERY OF THE UTILITY MODEL
To the above problem, an object of the utility model is to provide a base station antenna short-term test device, the device can detect base station antenna product fast, accurately to carry out the accurate positioning to the defect that detects.
In order to achieve the above object, the utility model provides a base station antenna rapid detection device, including multi-probe frame and antenna fixed station, be equipped with the antenna that awaits measuring on the antenna fixed station, be equipped with a plurality of test probes on the multi-probe frame, the test probe is arranged in same straight line direction, constitutes first linear probe array; the first linear probe array is arranged above the antenna to be tested and points to the antenna to be tested; the probe switching unit is arranged corresponding to the test probes, electrically connected with the test probes and respectively controlling the switch of each test probe.
Preferably, the probe switching device further comprises a control unit, wherein the control unit is electrically connected with and controls the probe switching unit.
Further, the probe switching unit is a matrix switch.
Furthermore, the system also comprises a multi-port antenna switching unit for switching the antenna port to be tested, and the control unit is electrically connected with and controls the multi-port antenna switching unit.
Preferably, the number of the test probes is 8 to 128, and the length of the first linear probe array is 1 to 6 meters; the first linear probe array is linearly and uniformly or non-uniformly distributed, single-section plane near-field detection or cylindrical near-field detection is realized by the first linear probe array, and an antenna main section directional diagram is obtained through near-far field transformation.
Preferably, the multi-probe rack further comprises a second linear probe array formed by a plurality of test probes, and the second linear probe array is perpendicularly intersected with the first linear probe array and is positioned on the same horizontal plane with the first linear probe array; the first linear probe array is linearly and uniformly or non-uniformly distributed, single-section plane near-field detection or cylindrical near-field detection is realized by the first linear probe array, and an antenna main section directional diagram is obtained through near-far field transformation.
Preferably, a moving mechanism is arranged at the bottom of the multi-probe frame, and the multi-probe frame moves in the horizontal direction through the moving mechanism; the moving mechanism comprises a linear guide rail and an azimuth turntable.
Preferably, the multi-probe frame and the antenna fixing table are non-metal pieces.
Preferably, an amplifier unit is arranged corresponding to the antenna to be tested, and the amplifier unit amplifies an output signal of the antenna to be tested when the amplifier unit works.
Preferably, the test probe comprises a cross laser positioner.
Furthermore, the switch matrix and the detecting instrument are controlled by the testing computer, so that each probe is controlled to sample amplitude and phase at different positions and frequency points, all collected samples are stored and post-processed in the same computer, and parameters required by evaluation are given.
The beneficial effects of the utility model reside in that: the rapid detection device for the base station antenna detects the antenna to be detected through the linear probe array formed by the plurality of test probes, and the plurality of test probes directly detect at fixed detection positions in the detection process, so that the condition that the detection is carried out one by sequentially moving to each detection position through only one probe in the traditional test mode is avoided, the detection time is greatly saved, and the detection efficiency is improved; the linear probe array does not need to scan the whole plane during testing, only one-time linear measurement is needed, complete section scanning is avoided, single-section plane near-field or cylindrical near-field detection is achieved, the antenna main section directional diagram is obtained through near-far field conversion, and detection efficiency is improved.
Drawings
Fig. 1 is a schematic view of a first embodiment of the present invention;
fig. 2 is a schematic view of a second embodiment of the present invention;
fig. 3 is a schematic arrangement diagram of the test probes according to the second embodiment of the present invention;
fig. 4 is a schematic view of an electromagnetic wave darkroom according to a second embodiment of the present invention.
Description of the symbols: 1. a multi-probe frame; 2. an antenna fixing station; 3. an antenna to be tested; 4. a first linear probe array; 5. a second linear probe array; 6. a moving mechanism; 7. a cross laser locator; 8. an electromagnetic wave darkroom.
Detailed Description
The following is a detailed description of the preferred embodiments of the present invention:
the first embodiment is as follows:
as shown in fig. 1, in a first embodiment, a base station antenna rapid detection apparatus is provided, which includes a multi-probe holder 1 and an antenna fixing station 2.
The antenna fixing table 2 is provided with an antenna 3 to be tested; the multi-probe frame 1 is provided with a plurality of test probes which are uniformly or non-uniformly arranged in a linear manner in the same linear direction to form a first linear probe array 4; the first linear probe array 4 is arranged above the antenna to be tested 3 and points to the antenna to be tested 3.
And the probe switching unit is arranged corresponding to the test probes, is electrically connected with the test probes and respectively controls the switch of each test probe.
The test probe comprises a cross laser locator 7, and fault location can be accurately performed through the cross laser locator 7 during testing.
The probe switching unit is a matrix switch, and the switching among the test probes can be realized through the matrix switch, so that the sampling can be conveniently carried out at different near-field positions; in practical operation, the matrix switch can be multi-stage according to the number of probes, and a large number of test probes can be conveniently controlled through the multi-stage matrix switch.
The embodiment further comprises a control unit which is electrically connected with and controls the probe switching unit so as to be convenient for an operator to control.
In this embodiment, the apparatus further includes a multi-port antenna switching unit for switching the 3 ports of the antenna to be tested, and the control unit is electrically connected to and controls the multi-port antenna switching unit; through this multiport antenna switching unit, can once only survey the antenna under test who has a plurality of ports, and need not hand switch port in the test procedure, satisfied base station antenna multiport test demand from this, shortened the measuring time who detects multiport antenna, convenient and practical.
The multi-port antenna switching unit is the SPXT multi-port antenna switching unit, and other types can be used to meet the requirements in different scenes according to specific conditions.
In this embodiment, the control unit is a computer with an arithmetic function, and can fully automatically control the probe switching unit and the multi-port antenna switching unit through a preset program, so as to control each test probe to sample the amplitude and the phase at different positions and frequency points; and the output end of the test probe is connected to the computer, and the final sampling data is transmitted to the computer for operation, so that a result is obtained.
In this embodiment, an amplifier unit is provided corresponding to the antenna 3 to be detected, and the amplifier unit amplifies an output signal of the antenna 3 to be detected when the amplifier unit operates, so that a dynamic range of a system is increased, a false alarm rate is reduced, and a detection accuracy rate is increased.
In the embodiment, the bottom of the multi-probe frame 1 is provided with a moving mechanism 6, and the multi-probe frame 1 moves in the horizontal direction through the moving mechanism 6; the moving mechanism 6 comprises a linear guide rail and an azimuth turntable, so that the multi-probe frame 1 can be linearly moved and rotated through the moving mechanism 6; the position of the multi-probe frame 1 in the horizontal direction can be adjusted through the moving mechanism 6, so that the calibration between the probe array and the antenna 3 to be measured is realized.
In this embodiment, the multi-probe frame 1 and the antenna fixing table 2 are both non-metal members, and specifically, may be made of a plastic material, so as to avoid interference of metal on signals and ensure detection accuracy.
In this embodiment, the number of the test probes is 8 to 128, the length of the first linear probe array 4 is 1 to 6 meters, and the design can cover the test requirements of the current maximum base station antenna, and can realize second-level rapid detection.
In this embodiment, this quick detection device of base station antenna sets up in electromagnetic wave darkroom 8 to avoid external environment's interference, ensure detection accuracy.
When the base station antenna rapid detection device works, the antenna to be detected 3 is detected through the linear probe array formed by the plurality of test probes, and the plurality of test probes are directly detected at the fixed detection positions in the detection process, so that the condition that only one probe is sequentially moved to each detection position to carry out detection one by one in the traditional test mode is avoided, the detection time is greatly saved, and the detection efficiency is improved; the linear probe array does not need to scan the whole plane during testing, only needs to carry out linear measurement once, avoids complete section scanning, realizes single-section plane near-field or cylindrical surface near-field detection, obtains an antenna main section directional diagram through near-far field conversion, and improves the detection efficiency.
In addition, when the antenna to be tested is an array antenna with beam control capability, the antenna to be tested may include a feeding amplitude or phase control unit, which may be integrated into the control flow of the test system to realize fast detection, thereby saving additional time.
Example two:
the second embodiment shown in fig. 2 to 4 is different from the first embodiment in that the multi-probe holder 1 further includes a second linear probe array 5 formed by a plurality of the test probes, the second linear probe array 5 perpendicularly intersects the first linear probe array 4 and is located on the same horizontal plane with the first linear probe array 4, and the first linear probe array 4 and the second linear probe array 5 together form a cross shape.
When the two groups of mutually perpendicular linear arrays are used for near field data acquisition, 2 perpendicular antenna main section directional diagrams and 3D directional diagrams can be quickly obtained through an iterative optimization method and near-far field transformation, so that the detection is quicker and more accurate.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, but rather as the subject matter of the invention is intended to cover all modifications, equivalents and alternatives falling within the spirit and scope of the present invention.
Claims (10)
1. The utility model provides a quick detection device of base station antenna which characterized in that:
the antenna test device comprises a multi-probe frame (1) and an antenna fixing table (2), wherein an antenna (3) to be tested is fixed on the antenna fixing table (2), a plurality of test probes are arranged on the multi-probe frame (1), and the test probes are arranged in the same linear direction to form a first linear probe array (4);
the first linear probe array (4) is arranged above the antenna to be detected (3) and points to the antenna to be detected (3);
the probe switching unit is arranged corresponding to the test probes, electrically connected with the test probes and respectively controlling the switch of each test probe.
2. The device for rapidly detecting the antenna of the base station as claimed in claim 1, wherein: the probe switching device further comprises a control unit which is electrically connected with and controls the probe switching unit.
3. The device for rapidly detecting the antenna of the base station as claimed in claim 2, wherein: the probe switching unit is a matrix switch.
4. The device for rapidly detecting the antenna of the base station as claimed in claim 2, wherein: the antenna switching device is characterized by further comprising a multi-port antenna switching unit for switching the port of the antenna (3) to be tested, and the control unit is electrically connected with and controls the multi-port antenna switching unit.
5. The device for rapidly detecting the antenna of the base station as claimed in claim 1, wherein: the number of the test probes is 8 to 128, and the length of the first linear probe array (4) is 1 to 6 meters; the test probes of the first linear probe array (4) are linearly and uniformly or non-uniformly distributed, the first linear probe array (4) realizes single-section plane near-field detection or cylindrical near-field detection, and an antenna main section directional diagram is obtained through near-far field transformation.
6. The device for rapidly detecting the antenna of the base station as claimed in claim 1, wherein: the multi-probe frame (1) further comprises a second linear probe array (5) formed by a plurality of test probes, the second linear probe array (5) is vertically intersected with the first linear probe array (4), and is positioned on the same horizontal plane with the first linear probe array (4); through near-field data acquisition of two groups of mutually perpendicular linear arrays, 2 perpendicular antenna main section directional diagrams and 3D directional diagrams can be rapidly obtained through an iterative optimization method and near-far field transformation.
7. The device for rapidly detecting the antenna of the base station as claimed in claim 1, wherein: the bottom of the multi-probe frame (1) is provided with a moving mechanism (6), and the multi-probe frame (1) moves in the horizontal direction through the moving mechanism (6); the moving mechanism (6) comprises a linear guide rail and an azimuth turntable.
8. The device for rapidly detecting the antenna of the base station as claimed in claim 1, wherein: the multi-probe frame (1) and the antenna fixing table (2) are non-metal pieces.
9. The device for rapidly detecting the antenna of the base station as claimed in claim 1, wherein: and an amplifier unit is arranged corresponding to the antenna to be detected (3), and amplifies the output signal of the antenna to be detected (3) when the amplifier unit works.
10. The device for rapidly detecting the antenna of the base station as claimed in claim 1, wherein: the switch matrix and the detecting instrument are controlled by the testing computer, so that each probe is controlled to sample amplitude and phase at different positions and frequency points, all collected samples are stored and post-processed in the same computer, and parameters required by evaluation are given.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221180907.7U CN217820043U (en) | 2022-05-17 | 2022-05-17 | Quick detection device of base station antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221180907.7U CN217820043U (en) | 2022-05-17 | 2022-05-17 | Quick detection device of base station antenna |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217820043U true CN217820043U (en) | 2022-11-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221180907.7U Active CN217820043U (en) | 2022-05-17 | 2022-05-17 | Quick detection device of base station antenna |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217820043U (en) |
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2022
- 2022-05-17 CN CN202221180907.7U patent/CN217820043U/en active Active
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