CN116208263A - Calibration device and calibration method for improving array antenna test precision - Google Patents
Calibration device and calibration method for improving array antenna test precision Download PDFInfo
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- CN116208263A CN116208263A CN202211658526.XA CN202211658526A CN116208263A CN 116208263 A CN116208263 A CN 116208263A CN 202211658526 A CN202211658526 A CN 202211658526A CN 116208263 A CN116208263 A CN 116208263A
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- 238000012360 testing method Methods 0.000 title claims abstract description 31
- 238000009434 installation Methods 0.000 description 2
- 238000012795 verification Methods 0.000 description 2
- 230000000007 visual effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002146 bilateral effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
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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
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/50—Transmitters
- H04B10/501—Structural aspects
- H04B10/503—Laser transmitters
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
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Abstract
The invention relates to a calibration device and a calibration method for improving the testing precision of an array antenna, wherein the device comprises the following components: the device comprises a transmitting plate for mounting an array antenna and a placing plate for fixing a base station antenna, wherein the transmitting plate penetrates through the center of the transmitting plate and is positioned in the first direction and the second direction of the plane where the transmitting plate is positioned, a word line laser transmitter is arranged on the placing plate in a fixedly connected mode, the first rotating mechanism is rotationally connected with a second rotating mechanism, the first rotating mechanism and the second rotating mechanism rotate in a first preset direction and a second preset direction perpendicular to each other respectively, and the calibrating device changes the angle of the placing plate so that the intersection point of laser emitted by the two word line laser transmitters is located on the axis of the light spot formed on the placing plate. By visually aligning the center positions of the placement plate and the transmitting plate, it is ensured that a dead zone generated by the array antenna can be covered on the placement plate to quickly perform a relevant test process of the base station antenna.
Description
Technical Field
The invention relates to the technical field of antenna air interface testing, in particular to a calibration device and a calibration method for improving array antenna testing precision.
Background
The existing base station antenna is required to test multiple data before being put into use, a darkroom is required to be established in a space, a transmitting plate for fixing the array antenna is erected on one side of the darkroom, a plurality of antennas are arranged on the transmitting plate in a row, meanwhile, a placing plate for placing the base station antenna is arranged on one side far away from the transmitting plate, the base station antenna is fixed on the placing plate, then the transmitting antennas of the array are started, a dead zone is formed at the corresponding position of the placing plate through beam forming, and then the placing plate is controlled to rotate in the vertical direction and the horizontal direction, so that the test of the data of the base station antenna is completed.
The test system ensures that a dead zone generated by the array antenna is covered on the placing plate, and the coverage of the dead zone meets two conditions, namely, on one hand, the target position of the placing base station antenna on the placing plate is ensured to be on the extending path of beam forming in the horizontal direction, and on the other hand, the generating path of the dead zone is ensured to be vertical to the plane of the placing plate in the vertical state, namely, the plane of the placing plate in the vertical state is parallel to the plane of the transmitting plate, so that the dead zone cannot deviate upwards or downwards at the position of the placing plate no matter how far from the placing plate is, and the array antenna is ensured to be positioned. However, the electromagnetic wave is invisible, so that the relative position relationship between the placing plate and the transmitting plate which are far away from each other is invisible to the naked eye, the mounting accuracy of the transmitting plate in the darkroom is easily affected, and the mounting and overhauling of the transmitting plate are extremely inefficient, so that the problem needs to be solved.
Therefore, there is a need to provide a calibration device for rapidly and precisely aligning the center positions of the placement plate and the transmitting plate and effectively ensuring that the dead space generated by the array antenna can be covered on the placement plate to solve the above-mentioned technical problems.
Disclosure of Invention
In order to solve the technical problems, the invention provides a calibration device for improving the testing precision of an array antenna. The method solves the technical problems that in the prior art, the installation angle of the transmitting plate cannot be adjusted by judging the transmitting beam position of the transmitting antenna through naked eyes, so that deviation occurs between a dead zone generated by beam forming and the fixed position of the base station antenna, and the testing accuracy of the base station antenna is affected.
The technical effects of the invention are realized by the following steps:
a calibration device for improving array antenna test accuracy, comprising:
the antenna comprises a transmitting plate for mounting an array antenna, wherein a word line laser transmitter is arranged in a first direction and a second direction passing through the center of the transmitting plate, and the first direction and the second direction are both positioned on a plane where the transmitting plate is positioned;
the device comprises a placing plate for fixing a base station antenna, wherein the placing plate is fixedly connected with a first rotating mechanism, the first rotating mechanism is rotationally connected with a second rotating mechanism, the first rotating mechanism rotates in a first preset direction, the second rotating mechanism is rotationally connected with a base, the second rotating mechanism rotates in a second preset direction, the first preset direction is perpendicular to the second preset direction, and the angle of the placing plate is changed by the calibrating device through adjusting the first rotating mechanism and the second rotating mechanism, so that two intersection points of laser emitted by one word line laser emitters are located on the axis of the placing plate.
Further, the center position of the transmitting plate is rotationally connected with a fixing seat, the transmitting plate rotates around the axial direction of the transmitting plate on the plane where the transmitting plate is located, the plane where the rotating direction of the transmitting plate is vertical to the plane where the second preset direction is located, and the transmitting plate is used for judging the calibration degree of the array antenna by observing whether the formed light spots are located in the threshold range or not in the rotating process of the transmitting plate.
Further, the threshold range is a threshold region formed by taking a light spot formed when the emission plate is in an initial state as a target point and rounding the target point with a preset length as a radius. By setting the threshold range on the placing plate, the alignment degree of the placing plate and the emitting plate can be judged by observing whether the light spot formed by the laser intersection point on the placing plate is in the threshold range or not in the process of rotating the emitting plate, so that the light beam alignment degree inconvenient to judge by naked eyes is converted into the relative position relationship between the laser formed light spot and the threshold range, and the function of quickly aligning the placing plate and the emitting plate is realized by adopting a visual method.
Further, the first direction is perpendicular to the second direction, and the transmitting plate is arranged to adjust the mounting angle of the transmitting plate on the fixing seat by using the laser in the first direction and the laser in the second direction emitted by the level meter through the laser transmitters of the word line, so that the plane where the transmitting plate is located is in a vertical state. Through setting up two word line laser emitter and respectively in mutually perpendicular's first direction and second direction on the plane that the emitter plate is located to obtain crisscross calibration laser, thereby utilize the spirit level can accomplish the calibration work of straightness of emitter plate, with guarantee to adjust the dead zone and place the board and can not take place dislocation parallel problem after placing board and emitter plate alignment follow-up, effectively simplify the alignment step of emitter plate and place the board.
Further, a first guide rail is slidably connected below the base, the first guide rail is located in the horizontal direction, and the extending direction of the first guide rail is parallel to the plane where the transmitting plate is located.
Further, the base slides on the first guide rail so that a spot formed by the transmitting plate in an initial state is located at the center of the placing plate.
Further, a second guide rail is arranged below the first guide rail, the extending direction of the second guide rail is perpendicular to the extending direction of the first guide rail, and the first guide rail slides on the second guide rail so that the antenna base station fixed on the placing plate falls into a dead zone formed by transmitting the wave beams of the transmitting antennas on the transmitting plate.
In addition, a calibration method for improving the testing precision of the array antenna is provided, and the method is realized based on the calibration device for improving the testing precision of the array antenna, and comprises the following steps:
adjusting the mounting position of the transmitting plate to enable the transmitting plate to be in a vertical state;
controlling the first rotating mechanism to rotate in a first preset direction so as to enable the placing plate to be in a vertical state;
controlling the second rotating mechanism to rotate in a second preset direction so that light spots formed on the placing plate by the intersection points of the laser emitted by the two line laser emitters are positioned on the axis of the placing plate;
taking the position of the light spot as a circle center and taking the preset length as a radius to make a circle so as to obtain a threshold range on the placing plate;
and controlling the transmitting plate to rotate around the axial direction of the transmitting plate on the plane of the transmitting plate so as to ensure that all light spots formed in real time in the rotating process of the transmitting plate are positioned in the threshold range.
Further, adjusting the mounting position of the transmitting plate to be in a vertical state includes:
controlling two word line laser transmitters to emit laser so as to obtain a first calibration laser and a second calibration laser which are vertically intersected;
placing a level on the first calibration laser to adjust the levelness of a word line laser transmitter in a first direction;
the level gauge is placed on the second calibration laser after the emission plate is controlled to rotate by 90 degrees, so that the levelness of the word line laser emitter positioned in the second direction is adjusted, and the emission plate is adjusted to be in a vertical state.
Further, the second rotating mechanism is controlled to rotate around the base so that a light spot formed on the placing plate by an intersection point of laser emitted by the two line laser emitters is positioned on the axis of the placing plate, and the second rotating mechanism comprises:
the control base slides on the first guide rail so that the light spot formed by the transmitting plate in the initial state is located at the center of the placing plate.
As described above, the invention has the following beneficial effects:
1) By setting the threshold range on the placing plate, the alignment degree of the placing plate and the emitting plate can be judged by observing whether the light spot formed by the laser intersection point on the placing plate is in the threshold range or not in the process of rotating the emitting plate, so that the light beam alignment degree inconvenient to judge by naked eyes is converted into the relative position relationship between the laser formed light spot and the threshold range, and the function of quickly aligning the placing plate and the emitting plate is realized by adopting a visual method.
2) Through setting up two word line laser emitter and respectively in mutually perpendicular's first direction and second direction on the plane that the emitter plate is located the calibration laser that obtains the cross for can utilize the spirit level to accomplish the calibration work of the straightness of emitter plate, with guarantee to place the plate and the emitter plate alignment back dead zone with place the plate and can not take place dislocation parallel problem, effectively simplify the alignment step of emitter plate and place the plate.
Drawings
In order to more clearly illustrate the technical solution of the present invention, the following description will make a brief introduction to the drawings used in the description of the embodiments or the prior art. It should be apparent that the drawings in the following description are only some embodiments of the present invention, and that other drawings can be obtained from these drawings without inventive effort to those of ordinary skill in the art.
Fig. 1 is a schematic structural diagram of a calibration device for improving the testing accuracy of an array antenna according to an embodiment of the present disclosure;
fig. 2 is a flowchart of a calibration device for improving the testing accuracy of an array antenna according to an embodiment of the present disclosure.
Wherein, the reference numerals in the figures correspond to:
the device comprises a transmitting plate 1, a placing plate 2, a first rotating mechanism 3, a first base 31, a U-shaped rotating table 32, a second rotating mechanism 4, a base 5, a fixed seat 6, a first guide rail 7 and a second guide rail 8.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
It should be noted that the terms "first," "second," and the like in the description and the claims of the present invention and the above figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that the embodiments of the invention described herein may be implemented in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
Example 1:
as shown in fig. 1 and 2, an embodiment of the present disclosure provides a calibration device for improving testing accuracy of an array antenna, where the calibration device is disposed in a darkroom, and includes:
the antenna comprises a transmitting plate 1 for mounting an array antenna, wherein a word line laser transmitter is arranged in a first direction and a second direction which penetrate through the center of the transmitting plate 1, and the first direction and the second direction are both positioned on a plane where the transmitting plate 1 is positioned;
a place board 2 for fixing base station antenna, place board 2 fixedly connected with first rotary mechanism 3, first rotary mechanism 3 rotates and is connected with second rotary mechanism 4, first rotary mechanism 3 rotates in first direction of predetermineeing, second rotary mechanism 4 rotates and is connected with base 5, second rotary mechanism 4 rotates in second direction of predetermineeing, first direction of predetermineeing is perpendicular with the second direction of predetermineeing, calibrating device changes the angle of placing board 2 through adjusting first rotary mechanism 3 and second rotary mechanism 4, so that the light spot that two word line laser transmitter sent the intersection point of laser to form on placing board 2 is located the axis of placing board 2. Wherein, be equipped with fixed establishment on placing board 2, fixed establishment is used for the base station antenna that awaits measuring to be fixed on placing board 2.
In this embodiment, the second preset direction is located in a horizontal direction, and the first preset direction is located in a vertical direction. When the placing plate 2 is parallel to the transmitting plate 1, the plane in which the first preset direction is located is perpendicular to the plane in which the transmitting plate 1 is located.
It should be noted that, in order to make the array antenna in the dark room accurately align to the target position of the placement board 2 before working, so as to fix the base station antenna on the placement board 2, the array antenna is started to form a beam forming dead zone to cover the position where the placement board 2 is located, and then the base station antenna is driven to rotate in multiple directions in the dead zone by the rotation of the first rotating mechanism 3 and the second rotating mechanism 4, so that the function of comprehensively detecting each item of data of the base station antenna is achieved.
Specifically, the first rotating mechanism 3 includes a first base 31 and a U-shaped turntable 32, the bottom of the U-shaped turntable 32 is rotationally connected with the first base 31, the U-shaped turntable 32 rotates around the axial direction of the first base 31, the U-shaped turntable 32 is in a bilateral symmetry structure, and two ends of the U-shaped turntable 32 are fixedly connected with two ends of the placing plate 2 in a one-to-one correspondence manner. Wherein the axial direction of the first base 31 is located in the horizontal direction.
Specifically, the second rotating mechanism 4 is a rotating table located in a horizontal direction, the rotating table is rotationally connected with the base 5, an axial direction of the rotating table and an axial direction of the base 5 are located on the same straight line, the rotating table is used for rotating around the axial direction of the rotating table, and the first base 31 is fixedly connected with the rotating table.
The axial direction of the rotating table passes through the center point of the first base 31, and when the U-shaped turntable 32 is in a vertical state, the axial direction of the rotating table 32 is the axial direction of the U-shaped turntable.
Since there is no way to ensure that the placing plate 2 is in a completely vertical state after the placing plate 2 is mounted on the first rotating mechanism 3, a slight inclination may occur, and thus the first rotating mechanism 3 is provided such that the placing plate 2 is adjusted to be in a vertical state by rotating the U-turn table 32.
The second rotation mechanism 4 is provided such that the plane in which the board 2 is placed can be parallel to the plane in which the emitter board 1 is placed by rotating the rotating table.
In this embodiment, a first guide rail 7 is slidably connected below the base 5, the first guide rail 7 is located in a horizontal direction, and an extending direction of the first guide rail 7 is parallel to a plane where the transmitting plate 1 is located.
The spot formed by the emitter plate 1 in the initial state can be located at the center of the placement plate 2 by sliding the base 5 on the first rail 7, i.e., the center of the placement plate 2 is selected as the target point. Wherein, the initial state of the transmitting plate 1 is that the transmitting plate 1 and the placing plate 1 are adjusted to be in a vertical state.
Specifically, the level gauge is placed on the transmitting plate 1 and the placing plate 2 respectively, the transmitting plate 1 and the placing plate 2 are ensured to be vertical to the ground through the level gauge, then a word line laser transmitter is started, and the laser at the intersection of the calibration light is irradiated on the target point by adjusting the position of the transmitting plate 1 in the vertical direction and adjusting the angle of the placing plate 2 in the horizontal direction through the second rotating mechanism 4, so that the basic calibration step of the array antenna in the dark room is realized. The level in which the calibration transmitting plate 1 and the placing plate 2 are in a vertical state may be a frame level.
By adopting the darkroom bottom wall in the horizontal direction as a reference object, the placing plate 2 and the transmitting plate 1 are vertical to the ground, and the center positions of the placing plate 2 and the transmitting plate 1 are positioned at the same height, so that the dead zone generated by the array antenna on the transmitting plate 1 can be ensured not to be misplaced and parallel with the space vertical to the placing plate 2 after the placing plate 2 and the transmitting plate 1 are aligned. Compared with the direct alignment, the transmitting plate 2 and the placing plate 1 are perpendicular to the ground, the degree of freedom which needs to be considered when the transmitting plate 1 and the placing plate 2 are aligned later can be reduced, and the alignment steps are simplified, so that the operating process of placing the transmitting plate 1 and the placing plate 2 by operators is facilitated.
Preferably, the center position of the transmitting plate 1 is rotatably connected with a fixing seat 6, the transmitting plate 1 rotates around the axial direction of the fixing seat on the plane where the transmitting plate 1 is located, the plane where the rotating direction of the transmitting plate 1 is located is perpendicular to the plane where the second preset direction is located, and the transmitting plate 1 is used for observing whether all light spots formed by human in the rotating process are located in a threshold range or not.
Specifically, under the condition that the transmitting plate 1 is parallel to the placing plate 2, the first rotating mechanism 3 drives the plane of the rotating direction of the placing plate 2 to be perpendicular to the plane of the transmitting plate 1, that is, the plane of the rotating direction of the transmitting plate 1.
The threshold range is a threshold area formed by taking a light spot formed by the transmitting plate 1 in an initial state at the center of the placing plate 2 as a target point and taking the target point as the center and a preset length as a radius as a circle, and marks the threshold area at the place on the placing plate 2 so as to be convenient for observation. Wherein the preset length can be set by the person skilled in the art.
Specifically, during the completion of 360 degrees of rotation of the emitter plate 1, it is observed whether the movement area of the spot projected on the placement plate 2 at the intersection position of the calibration laser remains within the threshold range. If the light spot formed on the placing plate 2 exceeds the threshold range during the rotation of the emitting plate 1, an operator is required to adjust the installation angle of the emitting plate 1 relative to the fixed seat 6 according to the angle direction of the light spot generated by the calibration laser on the placing plate 2 relative to the target point; if the light spot of the calibration laser on the placing plate 2 is always within the threshold value range in the rotation process of the emitting plate 1, the verification and calibration process of the array antenna is completed, and the relative position adjustment of the emitting plate 1 and the placing plate 2 is stopped.
Through marking the threshold range on the placing plate 2, then rotating the transmitting plate 1, and through observing the relative position relation between the laser intersection point forming light spots on the placing plate 2 and the threshold range, judging the alignment degree of the placing plate 2 and the transmitting plate 1, thereby converting the inconveniently judged alignment degree into the position relation between the visible light spots and the visible threshold range with limits, realizing the visibility and standardization in the alignment degree process of the adjusting placing plate 2 and the transmitting plate 1, and realizing the quick and accurate calibration flow of the array antenna so as to facilitate the quick test work of the subsequent base station antenna.
After the verification and calibration are completed, the position of the transmitting plate 1 is finally fixed on the corresponding position of the fixed seat 6 through a mechanical structure, and then a word line laser transmitter on the transmitting plate 1 is removed.
Preferably, a second guide rail 8 is provided below the first guide rail 7, the extending direction of the second guide rail 8 is perpendicular to the extending direction of the first guide rail 7, and the first guide rail 7 slides on the second guide rail 8 to enable the antenna base station fixed on the placing plate 2 to fall into a dead zone formed by the transmitting antenna transmitting beam on the transmitting plate 1.
As shown in fig. 2, the embodiment of the present disclosure provides a calibration method for improving the testing precision of an array antenna, where the method is implemented based on the calibration device for improving the testing precision of an array antenna in embodiment 1, and includes:
s100: adjusting the mounting position of the transmitting plate 1 to be in a vertical state;
s200: controlling the first rotating mechanism 3 to rotate in a first preset direction so as to enable the placing plate 2 to be in a vertical state;
s300: the second rotating mechanism 4 is controlled to rotate in a second preset direction, so that light spots formed on the placing plate 2 by the intersection points of the laser emitted by the two line laser emitters are positioned on the axis of the light spots;
s400: taking the position of the light spot as a circle center and taking the preset length as a radius to make a circle so as to obtain a threshold range on the placing plate 2;
s500: the emitter plate 1 is controlled to rotate around its axis in its plane to ensure that all spots formed in real time during the rotation of the emitter plate 1 are within the threshold range.
In a specific embodiment, the adjusting the mounting position of the transmitting plate 1 to be in the vertical state in step S100 includes:
controlling two word line laser transmitters to emit laser so as to obtain a first calibration laser and a second calibration laser which are vertically intersected;
placing a level on the first calibration laser to adjust the levelness of a word line laser transmitter in a first direction;
after the emission plate 1 is controlled to rotate 90 degrees, the level gauge is placed on the second calibration laser to adjust the levelness of the word line laser emitter positioned in the second direction, so that the emission plate 1 is adjusted to be in a vertical state.
In a specific embodiment, step S300 controls the second rotation mechanism 4 to rotate around the base 5, so that a light spot formed on the placement board 2 by an intersection point of the laser light emitted by the two in-line laser emitters is located on an axis thereof, and includes:
the control base 5 slides on the first guide rail 7 so that the spot formed by the radiation plate 1 in the initial state is located at the center position of the placement plate 2.
While the invention has been described in terms of preferred embodiments, the invention is not limited to the embodiments described herein, but encompasses various changes and modifications that may be made without departing from the scope of the invention.
In this document, terms such as front, rear, upper, lower, etc. are defined with respect to the positions of the components in the drawings and with respect to each other, for clarity and convenience in expressing the technical solution. It should be understood that the use of such orientation terms should not limit the scope of the protection sought herein.
The embodiments and features of the embodiments described herein can be combined with each other without conflict.
The above disclosure is only a preferred embodiment of the present invention, and it is needless to say that the scope of the invention is not limited thereto, and therefore, the equivalent changes according to the claims of the present invention still fall within the scope of the present invention.
Claims (10)
1. The utility model provides an improve calibrating device of array antenna test accuracy which characterized in that includes:
the antenna comprises a transmitting plate (1) for mounting an array antenna, wherein a word line laser transmitter is arranged in a first direction and a second direction passing through the center of the transmitting plate (1), and the first direction and the second direction are both positioned on a plane where the transmitting plate (1) is positioned;
a place board (2) for fixing base station antenna, place board (2) fixedly connected with first rotary mechanism (3), first rotary mechanism (3) rotate and are connected with second rotary mechanism (4), first rotary mechanism (3) rotate in first default direction, second rotary mechanism (4) rotate and are connected with base (5), second rotary mechanism (4) rotate in second default direction, first default direction with second default direction is perpendicular, calibrating device is through the adjustment first rotary mechanism (3) with second rotary mechanism (4) change place the angle of board (2), so that two the intersection that a word line laser transmitter sent laser is in place the facula that forms on board (2) is located place on the axis of board (2).
2. The calibration device for improving the array antenna test precision according to claim 1, wherein a fixing seat (6) is rotatably connected to the central position of the transmitting plate (1), the transmitting plate (1) rotates around the axial direction of the transmitting plate (1) on a plane where the transmitting plate (1) is located, the plane where the rotating direction of the transmitting plate (1) is perpendicular to the plane where the second preset direction is located, and the transmitting plate (1) is used for judging the calibration degree of the array antenna by observing whether the formed light spot is located in a threshold range or not in the rotating process of the transmitting plate.
3. Calibration device for improving the test accuracy of an array antenna according to claim 2, characterized in that the threshold range is a threshold region formed by taking a light spot formed when the transmitting plate (1) is in an initial state as a target point and taking the target point as a center and a preset length as a radius as a circle.
4. The calibration device for improving the array antenna test precision according to claim 3, wherein the first direction and the second direction are perpendicular, and the transmitting plate (1) is configured to adjust the mounting angle of the transmitting plate (1) on the fixing base (6) by using the laser in the first direction and the second direction emitted by the level through the word line laser transmitter, so that the plane where the transmitting plate (1) is located is in a vertical state.
5. The calibration device for improving the array antenna test precision according to claim 4, wherein a first guide rail (7) is slidingly connected below the base (5), the first guide rail (7) is located in a horizontal direction, and an extending direction of the first guide rail (7) is parallel to a plane where the transmitting plate (1) is located.
6. Calibration device for improving the test accuracy of an array antenna according to claim 5, characterized in that the base (5) slides on the first guide rail (7) so that the spot formed by the transmitting plate (1) in the initial state is located in the center of the placing plate (2).
7. The calibration device for improving the array antenna test precision according to claim 6, wherein a second guide rail (8) is arranged below the first guide rail (7), the extending direction of the second guide rail (8) is perpendicular to the extending direction of the first guide rail (7), and the first guide rail (7) slides on the second guide rail (8) so that an antenna base station fixed on the placing plate (2) falls into a dead zone formed by transmitting antenna transmitting beams on the transmitting plate (1).
8. A calibration method for improving the test accuracy of an array antenna, the method being implemented based on the calibration device for improving the test accuracy of an array antenna according to any one of claims 1 to 7, comprising:
adjusting the mounting position of the transmitting plate (1) to enable the transmitting plate to be in a vertical state;
controlling the first rotating mechanism (3) to rotate in a first preset direction so as to enable the placing plate (2) to be in a vertical state;
the second rotating mechanism (4) is controlled to rotate in a second preset direction, so that light spots formed on the placing plate (2) by the intersection points of laser emitted by the two line laser emitters are positioned on the axes of the light spots;
taking the position of the light spot as a circle center and taking the preset length as a radius to make a circle so as to obtain a threshold range on the placing plate (2);
the transmitting plate (1) is controlled to rotate around the axial direction of the transmitting plate on the plane of the transmitting plate so as to ensure that all light spots formed in real time during the rotation of the transmitting plate (1) are located in the threshold range.
9. The calibration method for improving the test accuracy of the array antenna according to claim 8, wherein the first direction and the second direction are perpendicular, and wherein adjusting the mounting position of the transmitting plate (1) so as to be in a vertical state comprises:
controlling two word line laser transmitters to emit laser so as to obtain a first calibration laser and a second calibration laser which are vertically intersected;
placing a level on the first calibration laser to adjust the levelness of a word line laser transmitter in a first direction;
the emitting plate (1) is controlled to rotate by 90 degrees, and then the level gauge is placed on the second calibration laser to adjust the levelness of the word line laser emitter positioned in the second direction so as to adjust the emitting plate (1) to be in a vertical state.
10. The calibration method for improving the testing precision of the array antenna according to claim 9, wherein a first guide rail (7) is slidingly connected below the base (5), the first guide rail (7) is located in a horizontal direction, and an extending direction of the first guide rail (7) is parallel to a plane where the transmitting plate (1) is located, and the calibration method is characterized in that the second rotating mechanism (4) is controlled to rotate around the base (5) so as to enable a light spot formed by an intersection point of two laser emitters of a word line on the placing plate (2) to be located on an axis of the light spot, wherein the light spot comprises:
the control base (5) slides on the first guide rail (7) so that a light spot formed by the transmitting plate (1) in an initial state is located at the center of the placing plate (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211658526.XA CN116208263A (en) | 2022-12-22 | 2022-12-22 | Calibration device and calibration method for improving array antenna test precision |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211658526.XA CN116208263A (en) | 2022-12-22 | 2022-12-22 | Calibration device and calibration method for improving array antenna test precision |
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| CN117388587A (en) * | 2023-12-07 | 2024-01-12 | 南京捷希科技有限公司 | High low temperature terminal test darkroom |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN117388587A (en) * | 2023-12-07 | 2024-01-12 | 南京捷希科技有限公司 | High low temperature terminal test darkroom |
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