CN111025031A

CN111025031A - Antenna radiation performance detection system and auxiliary device

Info

Publication number: CN111025031A
Application number: CN201911380366.5A
Authority: CN
Inventors: 姚康水; 肖飞; 黄伟青
Original assignee: Comba Telecom Technology Guangzhou Ltd
Current assignee: Comba Telecom Technology Guangzhou Ltd
Priority date: 2019-12-27
Filing date: 2019-12-27
Publication date: 2020-04-17

Abstract

The invention discloses a detection system and an auxiliary device for antenna radiation performance, wherein the auxiliary device comprises an installation unit, a rotating mechanism and a positioning unit; the rotating mechanism comprises a fixed piece fixedly arranged on the mounting unit, a rotating piece capable of rotating relative to the fixed piece and a locking assembly used for locking or loosening the rotating piece, and the rotating piece is provided with a connecting part; the positioning unit is fixedly connected with the connecting part, so that the positioning unit can rotate along with the rotating piece, and the positioning unit is provided with a fastening component for fixing the antenna shell and a positioning part for positioning the antenna phase center. The antenna radiation performance detection system and the auxiliary device not only can accurately realize the adjustment of the test inclination angle of the multi-beam antenna, but also can conveniently adjust the phase center of the antenna and the physical center of a far field to overlap in two dimensions, thereby ensuring the test accuracy of the antenna radiation index and being beneficial to the correctness of the detection of an antenna directional diagram.

Description

Antenna radiation performance detection system and auxiliary device

Technical Field

The present invention relates to the field of communications technologies, and in particular, to a system and an auxiliary device for detecting antenna radiation performance.

Background

In the process of detecting the radiation performance of the far-field antenna of the base station antenna, the multi-beam antenna generally has vertical horizontal beams with different degrees, which is an important antenna performance index.

The existing antenna radiation performance detection system cannot accurately adjust the test inclination angle of the multi-beam antenna, affects the accuracy of horizontal beam performance test of the antenna on a vertical plane, and is not beneficial to the correctness of antenna directional diagram detection.

Disclosure of Invention

Therefore, it is necessary to provide a system and an auxiliary device for detecting antenna radiation performance, which not only can accurately adjust the test tilt angle of the multi-beam antenna, but also can conveniently adjust the phase center of the antenna and the physical center of the far field to overlap in two dimensions, thereby ensuring the accuracy of the test of the antenna radiation index and being beneficial to the correctness of detecting the antenna directional diagram.

The technical scheme is as follows:

in one aspect, the present application provides an auxiliary device, including an installation unit, a rotation mechanism, and a positioning unit; the rotating mechanism comprises a fixed piece fixedly arranged on the mounting unit, a rotating piece capable of rotating relative to the fixed piece and a locking assembly used for locking or loosening the rotating piece, and the rotating piece is provided with a connecting part; the positioning unit is fixedly connected with the connecting part, so that the positioning unit can rotate along with the rotating piece, and the positioning unit is provided with a fastening component for fixing the antenna shell and a positioning part for positioning the antenna phase center.

When the auxiliary device is used, the positioning part is used for aligning and positioning with the phase center of the antenna, so that the phase center of the antenna and the physical center of a far field are overlapped in two dimensions, then the fastening assembly is used for fixing the antenna on the positioning unit, and at the moment, the work of mounting the antenna on the radiation device is completed. Then, the antenna is installed at the detection position through the installation unit, and then the rotating piece can be rotated one by one according to a preset rotation angle, so that the rotating piece drives the antenna to test horizontal beams of vertical surfaces with different degrees. The auxiliary device not only can accurately realize the adjustment of the test inclination angle of the multi-beam antenna, but also can conveniently adjust the phase center of the antenna and the physical center of a far field to overlap in two dimensions, thereby ensuring the test accuracy of the antenna radiation index and being beneficial to the correctness of the detection of an antenna directional diagram.

The technical solution is further explained below:

in one embodiment, the rotating part is rotatably connected with the fixed part, and at least three bosses are arranged between the rotating part and the fixed part at intervals, wherein one boss is arranged on the outer peripheral side of the rotating center of the rotating part.

In one embodiment, the positioning unit comprises a first side plate and a second side plate which are arranged at intervals, and a connecting plate used for connecting the first side plate and the second side plate, wherein the first side plate and the second side plate both protrude out of the connecting plate to form an avoiding space, and the first side plate or/and the second side plate are/is provided with a positioning part.

In one embodiment, the locking assembly is disposed between the rotating member and the fixed member and is used to lock the rotating member to the fixed member or to allow the rotating member to rotate relative to the fixed member after the rotating member is released.

In one embodiment, the locking assembly comprises at least two locking parts arranged on the fixed part and locking tongues arranged on the rotating part, all the locking parts are arranged at intervals along the outer circumference of the rotating center of the rotating part, and the locking tongues are detachably matched with the locking parts.

In one embodiment, the lock tongue is a lock hole formed in the fixing part, and the lock tongue is a telescopic lock cylinder; when the lock column is at the first position, the lock column is matched with the lock hole in a locking way; when the lock column is in the second position, the lock column is staggered with the lock hole.

In one embodiment, the locking assembly further comprises a connecting piece fixedly arranged on the rotating piece, the lock cylinder is elastically and retractably arranged on the connecting piece, one end of the lock cylinder can extend out of the connecting piece and be inserted into the lock hole, the other end of the lock cylinder is provided with a limiting body, the connecting piece is provided with a first limiting groove and a second limiting groove which are matched with the limiting body, and the bottom wall of the second limiting groove is arranged above the bottom wall of the first limiting groove; when the limiting body is matched with the first limiting groove, the lock column is in a first position; when the limiting body is matched with the second limiting groove, the lock column is in the second position.

In one embodiment, the mounting unit is a frame structure, and the fixing member is provided with an inserting portion which is inserted and fixedly matched with the side frame of the mounting unit.

In one embodiment, the insertion part comprises an insertion hole which is in insertion fit with the side frame of the mounting unit, and a fastening piece which is arranged on the side wall of the insertion hole.

On the other hand, this application still provides a detecting system of antenna radiation performance, including the auxiliary device of above-mentioned any embodiment, still include and embrace the pole, the one end of embracing the pole is equipped with the base, and auxiliary device sets firmly in the other end of embracing the pole through the installation element.

The auxiliary device in any embodiment is adopted in the detection system for the radiation performance of the antenna, the pole is fixed at a preset position (such as a roof, a bottom surface and other fixed objects) by the aid of the base, the auxiliary device and the antenna fixed on the auxiliary device are fixed on the pole together by the aid of the mounting unit, the test inclination angle of the multi-beam antenna can be accurately adjusted, the phase center of the antenna and the physical center of a far field are overlapped in two dimensions, the test accuracy of the radiation index of the antenna is guaranteed, and the detection accuracy of an antenna directional pattern is facilitated. Compared with the prior art, the operation is very convenient, the efficiency of detecting the antenna is greatly increased, and the detection cost of the antenna is favorably reduced.

Drawings

FIG. 1 is a schematic structural diagram of an auxiliary device according to an embodiment;

FIG. 2 is a schematic view of the auxiliary device shown in FIG. 1 from another perspective;

FIG. 3 is a schematic top view of the positioning unit shown in FIG. 1;

FIG. 4 is a bottom view of the rotational member of FIG. 1;

fig. 5 is a schematic structural view of the rotating mechanism shown in fig. 1;

fig. 6 is a schematic structural view of the rotating mechanism shown in fig. 5 from another perspective;

FIG. 7 is a schematic structural view of a locking assembly shown in one embodiment;

fig. 8 is a schematic diagram of a system for detecting radiation performance of an antenna shown in an embodiment.

Description of reference numerals:

100. a mounting unit; 200. a rotation mechanism; 210. a fixing member; 212. a locking portion; 214. a plug-in part; 220. a rotating member; 222. a connecting portion; 224. a boss; 230. a locking assembly; 232. a latch bolt; 234. a connecting member; 202. a first limit groove; 204. a second limit groove; 236. a limiting body; 238. a pulling structure; 300. a positioning unit; 310. a positioning part; 320. a first side plate; 330. a second side plate; 340. a connecting plate; 400. holding the pole; 410. a base; 500. an antenna.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to the accompanying drawings and the detailed description. It should be understood that the detailed description and specific examples, while indicating the scope of the invention, are intended for purposes of illustration only and are not intended to limit the scope of the invention.

It will be understood that when an element is referred to as being "secured to," "disposed on," "secured to," or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. Further, when one element is considered as "fixed transmission connection" with another element, the two elements may be fixed in a detachable connection manner or in an undetachable connection manner, and power transmission can be achieved, such as sleeving, clamping, integrally-formed fixing, welding and the like, which can be achieved in the prior art, and is not cumbersome. When an element is perpendicular or nearly perpendicular to another element, it is desirable that the two elements are perpendicular, but some vertical error may exist due to manufacturing and assembly effects. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

References to "first" and "second" in this disclosure do not denote any particular order or quantity, but rather are used to distinguish one element from another.

At present, a multi-beam antenna needs to realize an ideal measurement inclination angle on a traditional test tool, an additional cushion block needs to be added between the test tool and the antenna, the adjustment of one angle can only be realized by a common cushion block, the horizontal beam performance of vertical surfaces of the multi-beam antenna with different degrees needs to be tested, and different inclination angles need to be manufactured by different cushion blocks. Therefore, the operation is complicated, time and labor are wasted, the efficiency of detecting the antenna is low, and the detection cost is high.

In order to solve the above problem, as shown in fig. 1, fig. 2 and fig. 5, in the present embodiment, an auxiliary device is provided, which includes a mounting unit 100, a rotating mechanism 200 and a positioning unit 300; the rotating mechanism 200 includes a fixed member 210 fixed to the mounting unit 100, a rotating member 220 rotatable with respect to the fixed member 210, and a locking assembly 230 for locking or releasing the rotating member 220, the rotating member 220 having a connecting portion 222; the positioning unit 300 is fixedly connected to the connecting portion 222, so that the positioning unit 300 can rotate with the rotating member 220, and the positioning unit 300 is provided with a fastening assembly for fixing the antenna housing and a positioning portion 310 for positioning the phase center of the antenna.

When the auxiliary device is used, the positioning portion 310 is used to align and position the phase center of the antenna, so that the phase center of the antenna and the physical center of the far field overlap in two dimensions, and then the fastening assembly is used to fix the antenna on the positioning unit 300, at this time, the work of mounting the antenna on the radiation device is completed. Then, the antenna is mounted to the sensing position by the mounting unit 100, and then the locking assembly 230 is released so that the rotation member 220 can rotate to a predetermined angle, and then the rotation member 220 is locked by the locking assembly 230. Thus, the rotating member 220 can be rotated one by one according to a preset rotation angle, so that the rotating member 220 drives the antenna to perform a test on horizontal beams of vertical planes with different degrees. The auxiliary device not only can accurately realize the adjustment of the test inclination angle of the multi-beam antenna, but also can conveniently adjust the phase center of the antenna and the physical center of a far field to overlap in two dimensions, thereby ensuring the test accuracy of the antenna radiation index and being beneficial to the correctness of the detection of an antenna directional diagram.

Note that the "fastening member" includes a fastening technique such as a strap that can fix the antenna to the positioning unit 300.

The positioning portion 310 is a positioning mark, a positioning groove, a positioning protrusion, etc.

In addition to any of the above embodiments, as shown in fig. 4 and 5, in an embodiment, the rotating element 220 is rotatably connected to the fixed element 210, and at least three bosses 224 are disposed between the rotating element 220 and the fixed element 210, and are respectively disposed at intervals, wherein one of the bosses 224 is disposed on an outer peripheral side of a rotation center of the rotating element 220. Thus, the contact area between the rotating member 220 and the fixing member 210 is reduced by the boss 224, which is beneficial to reducing the abrasion force, so that the rotating member 220 can rotate more smoothly. Meanwhile, the manufacturing difficulty is reduced, and only the boss 224 and the area in contact with the boss 224 need to be polished.

Based on any of the above embodiments, as shown in fig. 1 and fig. 3, in an embodiment, the positioning unit 300 includes a first side plate 320 and a second side plate 330 that are arranged at intervals, and a connecting piece 234 for connecting the first side plate 320 and the second side plate 330, wherein the first side plate 320 and the second side plate 330 both protrude out of the connecting plate 340 to form an avoiding space, and the first side plate 320 or/and the second side plate 330 are provided with positioning portions 310. Thus, the antenna can be placed above the first side plate 320 and the second side plate 330, and by avoiding the space, the connecting plate 340 does not interfere with the movement of the antenna, which is convenient for moving the antenna so that the phase center of the antenna is aligned with the positioning portion 310.

In addition to any of the above embodiments, in one embodiment, the locking assembly 230 is disposed between the rotating member 220 and the fixed member 210, and is used to lock the rotating member 220 on the fixed member 210, or the rotating member 220 can rotate relative to the fixed member 210 after the rotating member 220 is released. Thus, the operation is completed; the rotating member 220 is fixed or released from the fixed member 210 by the locking assembly 230, so that the rotating member 220 can rotate or be fixed relative to the fixed member 210, thereby facilitating the arrangement of a scale on the rotating member 210 and the adjustment of the tilt angle of the antenna according to a preset angle.

Further, as shown in fig. 5 and 6, in an embodiment, the locking assembly 230 includes at least two locking portions 212 disposed on the fixed member 210 and a locking tongue 232 disposed on the rotating member 220, all the locking portions 212 are disposed at intervals along an outer circumference of a rotation center of the rotating member 220, and the locking tongue 232 is detachably engaged with the locking portions 212. In this way, the locking or releasing of the rotating member 220 and the fixing member 210 is achieved by the engagement of the locking tongue 232 and the locking portion 212.

The locking tongue 232 and the locking part 212 can be matched in various forms, and can be realized by any one of the prior arts which can meet the use requirement.

Optionally, as shown in fig. 1 and fig. 6, in an embodiment, the latch 232 is a lock hole formed on the fixing element 210, and the latch 232 is a retractable lock cylinder; when the lock column is at the first position, the lock column is matched with the lock hole in a locking way; when the lock column is in the second position, the lock column is staggered with the lock hole. So only when the lock post is in different flexible positions can realize rotating the fixed of piece 220 with mounting 210, and then can adjust the test inclination size of antenna as required, then utilize the lock post to lock, easy to carry out, and convenient operation. Specifically, when the lock cylinder is in the first position, the lock cylinder is in locking engagement with the lock hole, and the rotating member 220 is fixed to the fixed member 210; when the lock cylinder is at the second position, the lock cylinder is separated from the lock hole and staggered with respect to the lock cylinder, and the rotating member 220 can rotate relative to the fixing member 210, so that the test inclination angle of the antenna can be adjusted.

The lock cylinder is an indexing pin, a hydraulic rod or a pneumatic rod.

Further, as shown in fig. 7, in an embodiment, the locking assembly 230 further includes a connecting member 234 fixed on the rotating member 220, the lock cylinder is elastically retractable on the connecting member 234, one end of the lock cylinder can extend out of the connecting member 234 and be inserted into the lock hole, the other end of the lock cylinder is provided with a limiting body 236, the connecting member 234 is provided with a first limiting groove 202 and a second limiting groove 204 matched with the limiting body 236, and the bottom wall of the second limiting groove 204 is disposed above the bottom wall of the first limiting groove 202; when the position-limiting body 236 is matched with the first position-limiting groove 202, the lock cylinder is in the first position; when the stop body 236 is engaged with the second stop groove 204, the lock cylinder is in the second position. Thus, when the position-limiting body 236 is engaged with the first position-limiting groove 202 by pulling the lock cylinder, the lock cylinder is at the first position, the lock cylinder is locked and engaged with the lock hole, and the rotating member 220 is fixed on the fixing member 210; when the position-limiting body 236 is engaged with the second position-limiting groove 204, the lock cylinder is in the second position, the lock cylinder is separated from the lock hole and staggered with respect to the lock hole, and the rotating member 220 can rotate with respect to the fixing member 210, thereby adjusting the test tilt angle of the antenna.

Further, as shown in fig. 7, in an embodiment, the depth of the first position-limiting groove 202 is smaller than the depth of the second position-limiting groove 204, and the first position-limiting groove 202 and the second position-limiting groove 204 are disposed in a staggered manner. Therefore, the lock cylinder is switched between the first position and the second position in a dislocation limiting mode, and the operation is simple.

It should be noted that the specific manner of "the lock cylinder is elastically and contractibly disposed on the connecting member 234" can be implemented by the prior art, such as the lock cylinder is slidably connected to the connecting member 234, so that the lock cylinder can move within a predetermined range. In this embodiment, the connecting member 234 is provided with a mounting through hole, and the lock cylinder is elastically retractable on the connecting member 234 through the mounting through hole.

Optionally, as shown in fig. 7, in an embodiment, the other end of the lock cylinder is further provided with a pulling structure 238, and the pulling structure 238 may be a pull ring, a handle, or the like. The locking column is convenient to lift, so that the locking column is switched between the first position and the second position, the operation is simple, and the locking is reliable.

On the basis of any one of the above embodiments of the locking assembly, as shown in fig. 1, 5 and 6, in one embodiment, all the locking parts 212 are uniformly arranged in one group at intervals along the outer circumference of the rotation center of the rotation member 220, the fixed member 210 is provided with two groups of locking parts 212 oppositely arranged, and one group of locking parts 212 corresponds to one bolt 232. Thus, the two-cycle locking assembly 230 is utilized to lock the rotating member 220, so that the rotating member 220 is more firmly fixed. And all the locking parts 212 can be distributed along a preset angle, so that the adjustment is convenient. If the locking parts 212 are arranged at intervals of 5 degrees, the corresponding locking parts 212 are arranged within the range of-45 degrees to +45 degrees, and the rotating member 220 can be rotated, so that the antenna can be adjusted to a required angle in the radial direction.

In addition to any of the above embodiments, as shown in fig. 1, 5 and 6, in an embodiment, the mounting unit 100 is a frame structure, and the fixing member 210 is provided with an insertion portion 214 that is inserted into and fixedly engaged with the side frame of the mounting unit 100. In this way, the frame structure and the insertion portion 214 are used to facilitate the fixing of the fixing member 210 on the mounting unit 100, and the fixing portion 310 is aligned with the far-field physical center.

Further, in an embodiment, the insertion portion 214 includes an insertion hole (not labeled) for insertion fit with the side frame of the mounting unit 100, and a fastening member (not labeled) disposed on a side wall of the insertion hole. Thus, the fixing member 210 can be inserted into the mounting unit 100 through the insertion hole, and after the position check is completed, the fixing member is fixed by the fastening member, so that the operation is simple. The fasteners are bolts, rivets, etc.

Of course, in other embodiments, the plug portion 214 is a snap-fit structure that is in a socket-fit with the frame structure.

As shown in fig. 1 and fig. 8, in an embodiment, a system for detecting radiation performance of an antenna is further provided, which includes the auxiliary device in any one of the above embodiments, and further includes a pole 400, a base 410 is disposed at one end of the pole 400, and the auxiliary device is fixedly mounted at the other end of the pole 400 through a mounting unit 100.

The detection system for the radiation performance of the antenna adopts the auxiliary device in any embodiment, the pole 400 is fixed at a preset position (such as a roof, a bottom surface and other fixed objects) by the base 410, the auxiliary device and the antenna fixed on the auxiliary device are fixed on the pole 400 by the mounting unit 100, the test inclination angle of the multi-beam antenna can be accurately adjusted, the phase center of the antenna and the physical center of a far field are overlapped on two dimensions, the test accuracy of the radiation index of the antenna is ensured, and the detection accuracy of the antenna directional pattern is facilitated. Compared with the prior art, the operation is very convenient, the efficiency of detecting the antenna is greatly increased, and the detection cost of the antenna is favorably reduced.

The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above examples only show some embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. An accessory device, comprising:

a mounting unit;

the rotating mechanism comprises a fixed part fixedly arranged on the mounting unit, a rotating part capable of rotating relative to the fixed part and a locking assembly used for locking or loosening the rotating part, and the rotating part is provided with a connecting part; and

the positioning unit is fixedly connected with the connecting part, so that the positioning unit can rotate along with the rotating part, and the positioning unit is provided with a fastening assembly for fixing the antenna and a positioning part for positioning the antenna with the phase center.

2. The auxiliary device as claimed in claim 1, wherein the rotating member is rotatably connected to the fixed member, and at least three bosses are provided between the rotating member and the fixed member, and are spaced apart from each other, wherein one of the bosses is provided on an outer peripheral side of a rotation center of the rotating member.

3. The auxiliary device according to claim 1, wherein the positioning unit includes a first side plate and a second side plate which are arranged at an interval, and a connecting plate for connecting the first side plate and the second side plate, the first side plate and the second side plate both protrude out of the connecting plate to form an avoiding space, and the positioning portion is provided on the first side plate or/and the second side plate.

4. The auxiliary device as claimed in claim 1, wherein the locking assembly is disposed between the rotating member and the fixed member and is configured to lock the rotating member to the fixed member or to allow the rotating member to rotate relative to the fixed member after the rotating member is released.

5. The auxiliary device as claimed in claim 4, wherein the locking assembly includes at least two locking portions provided on the fixed member, and locking tongues provided on the rotating member, all the locking portions being provided at intervals along an outer circumference of a rotation center of the rotating member, the locking tongues being detachably engaged with the locking portions.

6. The auxiliary device of claim 5, wherein the lock tongue is a lock hole formed in the fixed member, and the lock tongue is a retractable lock cylinder; when the lock cylinder is at the first position, the lock cylinder is matched with the lock hole in a locking way; when the lock column is in the second position, the lock column is staggered with the lock hole.

7. The auxiliary device of claim 6, wherein the locking assembly further comprises a connecting member fixedly disposed on the rotating member, the lock cylinder is elastically retractable and disposed on the connecting member, one end of the lock cylinder can extend out of the connecting member and be inserted into the lock hole, the other end of the lock cylinder is provided with a limiting body, the connecting member is provided with a first limiting groove and a second limiting groove which are matched with the limiting body, and the bottom wall of the second limiting groove is disposed above the bottom wall of the first limiting groove; when the limiting body is matched with the first limiting groove, the lock cylinder is at a first position; when the limiting body is matched with the second limiting groove, the lock column is located at a second position.

8. Auxiliary device according to any one of claims 1-7, wherein the mounting unit is a frame structure and the fixing element is provided with a plug-in part for plug-in fixed engagement with a side frame of the mounting unit.

9. The auxiliary device as claimed in claim 8, wherein the insertion part includes an insertion hole to be inserted and fitted with the side frame of the mounting unit, and a fastening member provided on a side wall of the insertion hole.

10. An antenna radiation performance detection system, comprising the auxiliary device according to any one of claims 1 to 9, and further comprising a holding pole, wherein a base is disposed at one end of the holding pole, and the auxiliary device is fixedly mounted at the other end of the holding pole through the mounting unit.