Antenna standing-wave ratio calibration frame

Abstract

The utility model relates to an antenna standing-wave ratio calibration frame. The antenna standing-wave ratio calibration frame comprises a base, a sliding block, a motor module, a fixed support, an antenna and a sensor assembly. A sliding rail is arranged at the upper end of the base, and the sliding block is installed on the sliding rail in a sliding mode. The fixed support is fixedly installed on the sliding block, and the antenna is fixedly installed on the top of the fixed support. The motor module is installed on the side edge of the base and is in transmission connection with the sliding block. The sensor assembly is mounted on the base, and the sensor assembly is electrically connected with the motor module; the sliding block slides on the sliding rail under the control of the motor module, so that the position of the antenna is conveniently adjusted, the mode of manually erecting an antenna standing-wave ratio calibration frame is replaced, and the sliding position of the sliding block can be accurately controlled by arranging the sensor assembly. And the erection efficiency is effectively improved.

Description

Technical Field

[0001] The present application relates to the field of standing wave ratio testing, and in particular to an antenna standing wave ratio calibration frame. Background Art

[0002] Standing wave ratio is an indicator parameter often encountered in RF systems. The full name of standing wave ratio is voltage standing wave ratio, also known as VSWR and SWR. The site voltage standing wave ratio refers to the voltage standing wave ratio of the site, which is used to measure the voltage fluctuation on the site. The smaller the site voltage standing wave ratio, the smaller the voltage fluctuation, the better the matching degree between the power supply and the load, and the higher the voltage stability. Conversely, the larger the site voltage standing wave ratio, the greater the voltage fluctuation, the worse the matching degree between the power supply and the load, and the worse the voltage stability. The site voltage standing wave ratio can be calculated by measuring the voltage and reflected voltage on the site.

[0003] In the prior art, the antenna rack used in the laboratory needs to be manually adjusted, and is heavy and difficult to move. During the manual adjustment process, it takes a long time to set up the antenna rack because the position is not well determined, resulting in low efficiency. Summary of the invention

[0004] The purpose of the present application is to provide an antenna standing wave ratio calibration stand that can conveniently adjust the antenna position.

[0005] An antenna standing wave ratio calibration frame, characterized in that it includes: a base, a sliding block, a motor module, a fixed bracket, an antenna and a sensor assembly; a sliding track is provided at the upper end of the base, and the sliding block can be slidably installed on the sliding track; the fixed bracket is fixedly installed on the sliding block, and the antenna is fixedly installed on the top of the fixed bracket; the motor module is installed on the side of the base, and the motor module is transmission-connected to the sliding block; the sensor assembly includes a sensor protective shell, a first photoelectric sensor and a second photoelectric sensor, the sensor protective shell is installed on the base, the first photoelectric sensor and the second photoelectric sensor are installed in the sensor protective shell, and are electrically connected to the motor module; the sliding block is provided with a sensing element that can be sensed by the first photoelectric sensor and the second photoelectric sensor.

[0006] Compared with the prior art, the base of the antenna standing wave ratio calibration frame of the present application is provided with a sliding track for the sliding block to slide back and forth, and the antenna is installed on the sliding block through a fixed bracket; a motor module that can control the sliding of the sliding block is installed on one side of the base; the sliding block slides on the sliding track under the control of the motor module, so as to facilitate the adjustment of the antenna position, replacing the method of manually setting up the antenna standing wave ratio calibration frame, and at the same time, by setting the sensor assembly, when the antenna standing wave ratio calibration frame is started, the first photoelectric sensor can return the sliding block to the starting position; the second photoelectric sensor can ensure that the sliding block will not hit the edge position when moving on the sliding track, effectively improving the efficiency of setting up the antenna. And by setting the sensor protective shell, it can effectively ensure that the sensor is not dirty, so that the first photoelectric sensor and the second photoelectric sensor cannot work normally.

[0007] Furthermore, the antenna standing wave ratio calibration frame also includes: a screw rod, the screw rod is installed parallel to the top of the sliding track, a screw hole matching the screw rod is provided at the center of the sliding block, the sliding block is sleeved on the screw rod through the screw hole, and the sliding block is pressed against the sliding track by the screw rod. The structural design of the sliding block screw hole and the screw rod can prevent the sliding block from falling off the sliding track when sliding on the sliding track, and effectively improve the stability of the sliding block sliding on the sliding track.

[0008] Furthermore, the sliding rail is an integrated sliding rail formed by protruding upward from the upper end of the base, and a groove is provided at the bottom of the sliding block, and the sliding block is slidably engaged and fixedly installed with the integrated sliding rail through the groove.

[0009] Furthermore, the sliding rail is fixedly installed on the upper end of the base by screws, the sliding rail is a detachable sliding rail, the detachable sliding rail is fixedly installed on the upper end of the base, a groove is provided at the bottom of the sliding block, and the sliding block is slidably engaged and fixedly installed with the detachable sliding rail through the groove.

[0010] Furthermore, the base includes a first support rod, a second support rod, a third support rod and a fourth support rod, the first support rod, the second support rod, the third support rod and the fourth support rod are connected end to end in sequence to form a quadrilateral structure, the sliding track is arranged at the upper end of the first support rod; the motor module is installed on the side of the second support rod; the sensor protection shell is arranged on the side end of the first support rod. The quadrilateral structure formed by the first support rod, the second support rod, the third support rod and the fourth support rod being connected end to end in sequence can avoid the situation where the antenna standing wave ratio calibration frame will tilt during the installation process.

[0011] Furthermore, the motor module includes a motor and a controller electrically connected to the motor.

[0012] Furthermore, the fixed bracket at least includes a first bracket, a second bracket, a first fixed joint and a second fixed joint, the first fixed joint is fixedly mounted on the sliding block, the lower end of the first bracket is telescopically fixedly mounted in the first fixed joint; the second fixed joint is telescopically fixedly mounted on the upper end of the first bracket, the lower end of the second bracket is telescopically fixedly mounted in the second fixed joint; the first bracket is perpendicular to the plane where the base is located; the antenna is fixedly mounted on the upper end of the second bracket. By arranging the first bracket and the second bracket with adjustable length in the vertical direction, the upper and lower height positions can be adjusted to facilitate measurement. When switching the vertical position of the antenna, the antenna stand can be erected quickly and conveniently, thereby improving work efficiency.

[0013] Furthermore, the fixed bracket also includes a third bracket and a third fixed joint, the third fixed joint is telescopically fixedly installed on the upper end of the second bracket, and the third bracket is telescopically fixedly installed in the third fixed joint; wherein, the first bracket is parallel to the second bracket, the third bracket is perpendicular to the second bracket, and the antenna is fixedly installed at one end of the third bracket. By providing a third bracket with adjustable length in the horizontal direction, the left and right positions can be adjusted to facilitate measurement. At the same time, the third bracket can also rotate with the third fixed joint as a support point, which can meet the measurement of different orientations, conveniently and quickly execute the antenna stand installation, and improve work efficiency.

[0014] In order to provide a clearer understanding of the present application, the specific implementation of the present application will be described below in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A schematic diagram of the structure of an antenna standing wave ratio calibration frame for this application;

[0016] Figure 2 A partial structural schematic diagram of an antenna standing wave ratio calibration frame for this application;

[0017] Figure 3 A schematic structural diagram of an antenna standing wave ratio calibration stand sensor assembly is provided for the present application. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments of the present application, all other embodiments obtained by ordinary technicians in this field without making creative work belong to the protection scope of the present application. It is understood that the drawings are only provided for reference and illustration, and are not used to limit the present application. The connection relationship shown in the drawings is only for the convenience of clear description and does not limit the connection method.

[0019] It should be noted that when a component is considered to be "connected" to another component, it can be directly connected to the other component, or there may be an intermediate component at the same time. Unless otherwise defined, all technical and scientific terms used in this document have the same meaning as those generally understood by technicians in the technical field of this application. It should also be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances. The terms used in this document in the specification of this application are only for the purpose of describing specific embodiments, and are not intended to limit this application.

[0020] It should also be noted that in the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0021] See also Figure 1 and Figure 2 , Figure 1 This is a schematic diagram of the structure of an antenna standing wave ratio calibration frame for this application. Figure 2 This is a partial structural schematic diagram of an antenna standing wave ratio calibration frame for the present application.

[0022] The present application provides an antenna standing wave ratio calibration frame 1, comprising: a base 11, a sliding block 12, a motor module 13, a fixed bracket 14, an antenna 15 and a sensor assembly 17; a sliding track 112 is provided at the upper end of the base 11, and the sliding block 12 is slidably installed on the sliding track 112; the fixed bracket 14 is fixedly installed on the sliding block 12, and the antenna 15 is fixedly installed on the top of the fixed bracket 14; the motor module 13 is installed on the side of the base 11, and the motor module 13 is transmission-connected to the sliding block 12; the sensor assembly 17 is installed on the base 11, and the sensor assembly 17 is electrically connected to the motor module 13; the sliding block 12 is provided with a sensing element 126 that can be sensed by the sensor assembly 17.

[0023] In this embodiment, the motor module 13 is transmission-connected to the sliding block 12 , and the motor module 13 controls the sliding block 12 to move back and forth on the sliding track 112 to adjust the position of the antenna 15 and realize automatic calibration of the antenna 15 .

[0024] The motor module 13 controls the sliding block 12 to move back and forth in the sliding track 112 to achieve automatic calibration of the antenna 12. Compared with the method of manually setting up an antenna standing wave ratio automatic calibration frame, the antenna standing wave ratio calibration frame provided by the present application replaces the manual calibration method, can easily adjust the position of the antenna, and effectively improves the efficiency of antenna calibration. In addition, by setting the sensor component 17, when the antenna standing wave ratio calibration frame 1 is started, the sliding block 12 can be returned to the starting position; and it is ensured that the sliding block 12 will not hit the edge position when moving on the sliding track 112.

[0025] See also Figure 3 , Figure 3 This is a structural schematic diagram of a sensor assembly of an antenna standing wave ratio calibration frame of the present application. In this embodiment, the sensor assembly 17 includes a sensor protective shell 171, a first photoelectric sensor 172 and a second photoelectric sensor 174. The sensor protective shell 171 is fixedly mounted on the base 11 by screws, and the first photoelectric sensor 172 and the second photoelectric sensor 174 are installed in the sensor protective shell 171. The first photoelectric sensor 172 is a zero point calibration sensor, and the second photoelectric sensor 174 is an extreme position protection sensor, which is electrically connected to the motor module 13; the sliding block 12 is provided with a sensing element 126 that can be sensed by the first photoelectric sensor 172 and the second photoelectric sensor 174. Of course, the sensor protective shell 171 can also be installed on the base 11 by other means such as welding.

[0026] When the antenna standing wave ratio calibration frame 1 is started, the sliding block 12 slides along the sliding track 112 until the sensing element 126 on the sliding block 12 senses the sensing signal of the zero point calibration sensor 172 and transmits it to the control module 13. The control module 13 controls the sliding block 12 to move to the initial position according to the sensing signal of the zero point calibration sensor 172 transmitted by the sensing element 126; when the sliding block 12 moves on the sliding track 112, the extreme position protection sensor 174 sends a sensing signal in real time. When the sliding block 12 senses the sensing signal of the extreme position protection sensor 174 and transmits it to the control module 13, the control module 13 controls the sliding block 12 to slow down and slide in the opposite direction according to the sensing signal of the extreme position protection sensor 174 transmitted by the sensing element 126, so as to ensure that the sliding block 12 does not hit the edge position.

[0027] In addition, by providing the sensor protection shell 171, it can be effectively ensured that the sensor is not dirty, so that the zero point calibration sensor 172 and the extreme position protection sensor 174 cannot work normally.

[0028] In this embodiment, the antenna standing wave ratio calibration frame 1 also includes a screw rod 16, which is installed parallel to the top of the sliding track 112. The screw rod 16 is preferably a cylindrical strip, and the number is preferably one; a screw hole 124 cooperating with the screw rod is provided at the center of the sliding block 12, and the screw hole 124 is preferably a circular screw hole corresponding to the shape of the screw rod 16, and the number is preferably one corresponding to the screw rod 16; the sliding block 12 is sleeved on the screw rod 16 through the screw hole 124, and the screw rod 16 presses the sliding block 12 onto the sliding track 112. By providing the screw hole 124 and the screw rod 16, it is possible to avoid the sliding block 12 from falling off the sliding track 112 when sliding on the sliding track 112, and effectively improve the stability of the sliding block 12 sliding on the sliding track 112.

[0029] Of course, in other embodiments, according to actual installation requirements, the screw rod 16 can also be other shapes such as a rectangular strip or a cube strip, and the screw hole 124 is modified accordingly according to the shape of the screw rod 16, such as the shape of the screw hole 124 is set to a rectangle or a square; in addition, the number of the screw rods 16 can also be adaptively modified, for example, two screw rods 16 are set, and the sliding block 12 is correspondingly provided with two screw holes 124, the sliding block 12 is respectively connected to the two screw rods 16 through the two screw holes 124, and the two screw rods 16 press the sliding block 12 onto the sliding rail 112, thereby further improving the stability of the sliding block 12 sliding on the sliding rail 112.

[0030] In one embodiment, the sliding rail 112 is fixedly mounted on the upper end of the base 11 by screws, and the sliding rail 112 is a detachable sliding rail. The detachable sliding rail 112 is fixedly mounted on the upper end of the base 11. A groove 122 is provided at the bottom of the sliding block 12, and the sliding block 12 is slidably engaged and fixedly mounted with the detachable sliding rail 112 through the groove 122. Of course, the detachable sliding rail 112 can also be fixedly mounted on the upper end of the base 11 by other means such as welding.

[0031] In other embodiments, the sliding rail 112 may also be an integrated sliding rail protruding upward from the upper end of the base 11 , and a groove 122 is provided at the bottom of the sliding block 12 , and the sliding block 12 is slidably engaged and fixedly installed with the integrated sliding rail through the groove 122 .

[0032] In this embodiment, the base 11 includes a first support rod 113, a second support rod 114, a third support rod 115 and a fourth support rod 116, which are connected end to end in sequence and fixed by screws. The first support rod 113, the second support rod 114, the third support rod 115 and the fourth support rod 116 form a quadrilateral structure, preferably a square structure; the sliding track 112 is arranged at the upper end of the first support rod 113; the motor module 13 is installed on the side of the second support rod 114; the sensor protection shell 171 is fixedly installed on the side of the first support body 113 close to the end of the motor module 13 by screws. The square structure formed by connecting the first support rod 113, the second support rod 114, the third support rod 115 and the fourth support rod 116 end to end in sequence can prevent the antenna standing wave ratio calibration frame 1 from tilting during the installation process, resulting in inaccurate measurement results of the antenna standing wave ratio coefficient, and in severe cases, causing tipping and damage to the antenna 15. Of course, according to actual installation requirements, the first support rod 113, the second support rod 114, the third support rod 115 and the fourth support rod 116 can also be connected end to end in sequence to form other quadrilateral structures such as a rectangle; the first support rod 113, the second support rod 114, the third support rod 115 and the fourth support rod 116 can also be fixedly connected by other means such as welding; the sensor protective shell 171 can also be fixedly installed on the side of the first support body 113 near the end of the motor module 13 by other means such as welding.

[0033] In this embodiment, the motor module 13 includes a motor 132 and a controller 134 electrically connected to the motor 132, and the motor 132 and the controller 134 are fixedly installed on the side of the second support rod 114 by screws. The controller 134 is connected to and establishes communication with a host computer (not shown in the figure) for sending calibration instructions through RS232 optical fiber and RS232 optical fiber converter. The host computer sends a control instruction, which is received by the controller 134 after long-distance transmission by the RS232 optical fiber and conversion by the RS232 optical fiber converter, wherein the control instruction includes an operation instruction for controlling the sliding block 12 to move back and forth on the sliding track 112. The controller 134 sends the operation instruction to the motor 132, wherein the operation instruction includes a driving instruction for controlling the sliding block 12 on the sliding track 112. Of course, in other embodiments, according to actual needs, the controller 134 can also be connected to and establish communication with the host computer used to send calibration instructions through other optical fibers such as RS485; or, the controller 134 can also be connected to and establish communication with the host computer used to send calibration instructions through other wireless transmission methods such as network communication.

[0034] The host computer sends a control instruction to the controller 134, and the controller 134 sends an operation instruction in the control instruction to the motor 132. The motor 132 controls the sliding block 12 to move back and forth in the sliding track 112 according to the driving instruction in the operation instruction, so as to realize the automatic calibration of the antenna 12. Compared with the method of manually setting up an antenna standing wave ratio automatic calibration stand, the antenna standing wave ratio calibration stand 1 provided in the present application replaces the manual calibration method, can conveniently adjust the position of the antenna, and effectively improves the efficiency of antenna calibration.

[0035] In this embodiment, the fixed bracket 14 at least includes a first bracket 141, a second bracket 142, a first fixed joint 143 and a second fixed joint 144. The first fixed joint 143 is fixedly mounted on the sliding block 12 by screws. The first fixed joint 143 is provided with a first mounting through hole (not marked in the figure) and a first limiting hole (not marked in the figure). The lower end of the first bracket 141 is fixedly mounted in the first fixed joint 143 through the first mounting through hole, and the position of the first bracket 141 in the first fixed joint 143 is fixed by inserting a bolt into the first limiting hole. The second fixed joint 144 is fixedly mounted in the upper end of the first bracket 141 in a telescopic manner, and the lower end of the second bracket 142 is fixedly mounted in the second fixed joint 144 in a telescopic manner. The principle that the upper end of the first bracket 141 and the lower end of the second bracket 142 are fixedly mounted in the second fixed joint 144 in a telescopic manner is the same as the principle that the lower end of the first bracket 141 is fixedly mounted in the first fixed joint 143 in a telescopic manner, so it will not be repeated.

[0036] The first bracket 141 is preferably parallel to the second bracket 142; the first bracket 141 is perpendicular to the plane where the base 11 is located; the antenna 15 is fixedly installed on the upper end of the second bracket 142. By providing the first bracket 141 and the second bracket 142 with adjustable lengths in the vertical direction, the upper and lower height positions can be adjusted to facilitate measurement. When switching the vertical position of the antenna 15, the antenna stand can be set up conveniently and quickly, thereby improving work efficiency. Of course, in other embodiments, the first bracket 141 can also be perpendicular to the second bracket 142.

[0037] In one embodiment, the fixed bracket 14 further includes a third bracket 145 and a third fixed joint 146, wherein the third fixed joint 146 is telescopically fixedly installed on the upper end of the second bracket 142, and the third bracket 145 is telescopically fixedly installed in the third fixed joint 146. The principle that the upper end of the second bracket 142 and the third bracket 145 are telescopically fixedly installed on the third fixed joint 144 is the same as the principle that the lower end of the first bracket 141 is telescopically fixedly installed on the first fixed joint 143, so it is not repeated; wherein, the first bracket 141 is parallel to the second bracket 142, the third bracket 143 is perpendicular to the second bracket 142, and the antenna 15 is fixedly installed on one end of the third bracket 145. By providing the third bracket 145 with adjustable length in the horizontal direction, the left and right position of the antenna 15 can be adjusted to facilitate measurement, and the third bracket 145 can also be rotated with the third fixed joint 146 as a support point, which can meet the measurement of different orientations, conveniently and quickly perform antenna rack erection, and further improve work efficiency.

[0038] The present application is not limited to the above-mentioned implementation modes. If various changes or modifications to the present application do not depart from the spirit and scope of the present application, and if these changes and modifications fall within the claims of the present application and the scope of equivalent technologies, the present application is also intended to include these changes and modifications.

Claims

1. An antenna standing wave ratio calibration stand, characterized in that: include: A base, a sliding block, a motor module, a fixed bracket, an antenna and a sensor assembly; a sliding track is provided at the upper end of the base, and the sliding block can be slidably installed on the sliding track; the fixed bracket is fixedly installed on the sliding block, and the antenna is fixedly installed on the top of the fixed bracket; the motor module is installed on the side of the base, and the motor module is transmission-connected with the sliding block; the sensor assembly includes a sensor protective shell, a first photoelectric sensor and a second photoelectric sensor, the sensor protective shell is installed on the base, the first photoelectric sensor and the second photoelectric sensor are installed in the sensor protective shell, and are electrically connected to the motor module; the sliding block is provided with a sensing element that can be sensed by the first photoelectric sensor and the second photoelectric sensor.

2. The antenna standing wave ratio calibration stand according to claim 1, characterized in that: The first photoelectric sensor is a zero point calibration sensor, and the second photoelectric sensor is a limit position protection sensor.

3. The antenna standing wave ratio calibration stand according to claim 1, characterized in that: Also includes: A screw rod is installed parallel to the top of the sliding track. A screw hole matching with the screw rod is arranged at the center of the sliding block. The sliding block is sleeved on the screw rod through the screw hole, and the sliding block is pressed onto the sliding track by the screw rod.

4. The antenna standing wave ratio calibration stand according to claim 3, characterized in that: The sliding rail is an integrated sliding rail formed by protruding upward from the upper end of the base. A groove is provided at the bottom of the sliding block. The sliding block is slidably engaged and fixedly installed with the integrated sliding rail through the groove.

5. The antenna standing wave ratio calibration stand according to claim 3, characterized in that: The sliding rail is a detachable sliding rail, and the detachable sliding rail is fixedly installed on the upper end of the base. A groove is provided at the bottom of the sliding block, and the sliding block is slidably engaged and fixedly installed with the detachable sliding rail through the groove.

6. The antenna standing wave ratio calibration stand according to claim 1, characterized in that: The base includes a first support rod, a second support rod, a third support rod and a fourth support rod, and the first support rod, the second support rod, the third support rod and the fourth support rod are connected end to end in sequence to form a quadrilateral structure, and the sliding track is arranged at the upper end of the first support rod; the motor module is installed on the side of the second support rod; the sensor protective shell is arranged at the side end of the first support rod.

7. The antenna standing wave ratio calibration stand according to claim 1, characterized in that: The motor module includes a motor and a controller electrically connected to the motor.

8. The antenna standing wave ratio calibration stand according to claim 1, characterized in that: The fixed bracket at least includes a first bracket, a second bracket, a first fixed joint and a second fixed joint, the first fixed joint is fixedly installed on the sliding block, and the lower end of the first bracket is telescopically fixedly installed in the first fixed joint; the second fixed joint is telescopically fixedly installed on the upper end of the first bracket, and the lower end of the second bracket is telescopically fixedly installed in the second fixed joint; the first bracket is perpendicular to the plane where the base is located; the antenna is fixedly installed on the upper end of the second bracket.

9. The antenna standing wave ratio calibration stand according to claim 8, characterized in that: The fixed bracket also includes a third bracket and a third fixed joint, the third fixed joint is telescopically fixedly installed on the upper end of the second bracket, and the third bracket is telescopically fixedly installed in the third fixed joint; wherein, the first bracket is parallel to the second bracket, the third bracket is perpendicular to the second bracket, and the antenna is fixedly installed at one end of the third bracket.

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