CN108132367B

CN108132367B - Radio frequency test equipment fixing device and radio frequency test system

Info

Publication number: CN108132367B
Application number: CN201711339262.0A
Authority: CN
Inventors: 纪永波
Original assignee: Shanghai Wingtech Electronic Technology Co Ltd
Current assignee: Shanghai Wingtech Electronic Technology Co Ltd
Priority date: 2017-12-14
Filing date: 2017-12-14
Publication date: 2020-09-29
Anticipated expiration: 2037-12-14
Also published as: CN108132367A

Abstract

The invention discloses a radio frequency test equipment fixing device and a radio frequency test system, relates to the technical field of communication test equipment, and is designed for solving the problems of poor test stability and low test efficiency of the conventional PCBA circuit board. The fixing device for the radio frequency test equipment comprises a bearing platform capable of moving relative to the radio frequency test equipment and an elastic piece used for ensuring the relative displacement of the bearing platform and the radio frequency test equipment, wherein the bearing surface of the bearing platform protrudes out of a test part of the radio frequency test equipment. The PCBA circuit board is arranged on the bearing surface, and when the PCBA circuit board is pressed down to the maximum deformation of the elastic piece, the testing part is in full contact with the part to be tested of the PCBA circuit board. The radio frequency test system comprises radio frequency test equipment, a comprehensive tester and the radio frequency test equipment fixing device. The radio frequency test equipment fixing device and the radio frequency test system are used for testing the PCBA.

Description

Radio frequency test equipment fixing device and radio frequency test system

Technical Field

The invention relates to the technical field of communication test equipment, in particular to a radio frequency test equipment fixing device and a radio frequency test system.

Background

With the rapid development of science and technology, the communication equipment manufacturing industry has also been fully developed. As an important electronic component in the communication industry, the quality of a pcba (printed Circuit Board assembly) Circuit Board directly affects the final quality of a communication product. Therefore, before the PCBA circuit board is shipped, it needs to be strictly tested.

At present, radio frequency testing of a PCBA circuit board is completed by adopting the following method: the radio frequency test equipment is connected with the test seat on the PCBA circuit board, and then the radio frequency test equipment is connected with the comprehensive tester through the cable so as to test the PCBA circuit board. In the testing process, in order to ensure the stability and accuracy of the test, the contact stroke between the radio frequency testing device and the elastic sheet in the testing seat is usually required to be controlled within a certain range. For example: the contact stroke of the radio frequency testing equipment with the model MM126310 and the elastic sheet is controlled to be 0.4-0.6MM, if the contact stroke is less than 0.4MM, the radio frequency testing equipment cannot be in full contact with the testing seat, and therefore mistesting is caused; if the contact stroke is larger than 0.6mm, the radio frequency test equipment is excessively contacted with the test seat, the PCBA circuit board is damaged, and the service life of the radio frequency test equipment is shortened.

In the prior art, the structure and the operation principle of the fixing apparatus for radio frequency testing equipment are shown in fig. 1 and fig. 2, wherein the radio frequency testing equipment 100 'is connected to the carrier plate 300' by bolts, and the head portion of the radio frequency testing equipment extends out of the carrier plate 300 ', the positioning plate 400' is sleeved on the radio frequency testing equipment 100 'and is tightly abutted to the carrier plate 300', and at this time, the testing portion of the radio frequency testing equipment 100 'extends out of the positioning plate 400'. When the PCBA circuit board 600 ' is pressed down to be attached to the positioning plate 400 ', a test stroke is reached, and therefore the PCBA circuit board 600 ' is tested. In order to ensure the reliability of the test, the carrier plate 300 'and the positioning plate 400' need to have not only extremely high processing precision, but also high assembly precision (the processing precision is less than 0.1mm, and the assembly precision is less than 0.2 mm). However, in actual practice, it is often difficult to achieve the above-mentioned usage requirements, and mass production will result in a large amount of mistesting of data, and at this time, rework and retesting are necessary, which greatly reduces the testing efficiency and testing accuracy of the PCBA circuit board 600'.

Disclosure of Invention

The invention aims to provide a radio frequency test equipment fixing device to solve the technical problems of poor test stability and low test efficiency of the conventional PCBA.

The fixing device for the radio frequency test equipment comprises a bearing platform capable of moving relative to the radio frequency test equipment and an elastic piece for ensuring the relative displacement of the bearing platform and the radio frequency test equipment, wherein a bearing surface of the bearing platform protrudes out of a test part of the radio frequency test equipment.

The PCBA circuit board is arranged on the bearing surface, and when the PCBA circuit board is pressed down to the maximum deformation of the elastic piece, the test part is in full contact with the part to be tested of the PCBA circuit board.

Furthermore, the radio frequency testing device comprises a carrier plate used for mounting the radio frequency testing device, the carrier plate is fixed in position, the radio frequency testing device penetrates through the carrier plate, and the elastic piece is arranged between the radio frequency testing device and the carrier plate.

When the radio frequency test equipment is pressed to move, the elastic piece is compressed.

Further, the radio frequency test equipment pass through coupling assembling install in the support plate, coupling assembling includes a plurality of spliced poles, each the spliced pole passes the outer fringe of radio frequency test equipment and is fixed in the support plate, the spliced pole is kept away from the one end of support plate is equipped with spacing portion, the elastic component include the outer fringe with the flexible compression spring between the spacing portion.

The outer edge is sleeved on the connecting column in an empty mode.

Further, the compression spring is sleeved on the connecting column in an empty mode.

Further, the connecting column further comprises a guide part for guiding the movement of the outer edge, and the outer edge slides on the guide part in a matching manner.

Furthermore, the connecting column comprises a threaded section, and the connecting column is screwed and fixed on the carrier plate through the threaded section.

Furthermore, the bearing platform comprises a positioning plate and a supporting piece for supporting the positioning plate, the positioning plate is sleeved on the radio frequency testing equipment in a hollow mode, the supporting piece is arranged between the positioning plate and the carrier plate, and the supporting piece can stretch in the moving direction of the positioning plate.

Further, the support member includes a support spring.

Further, the positioning device also comprises a guide assembly for guiding the movement of the positioning plate.

The guide assembly comprises a guide pillar arranged on one of the positioning plate and the carrier plate and a guide sleeve arranged on the other one of the positioning plate and the carrier plate, and the guide pillar is matched and slides in the guide sleeve.

The guide assemblies are at least one group.

The fixing device of the radio frequency test equipment has the advantages that:

through setting up load-bearing platform and elastic component, wherein, load-bearing platform can move relative to the radio frequency test equipment, and the elastic component is used for guaranteeing the relative displacement volume between load-bearing platform and the radio frequency test equipment to, load-bearing platform's loading face protrusion sets up in the test position of radio frequency test equipment, and the PCBA circuit board is arranged in on the loading face.

When the radio frequency test equipment fixing device is used for carrying out test operation on the PCBA, the PCBA is placed on the bearing surface of the bearing platform, and then the PCBA is pressed downwards. In the process that the PCBA circuit board moves downwards, the part to be tested of the PCBA circuit board is gradually contacted with the testing part of the radio frequency testing equipment, and in the process that the PCBA circuit board continues to be pressed downwards, the deformation amount of the elastic piece is gradually increased. When the deformation of the elastic piece reaches the maximum, the testing part of the radio frequency testing equipment is just fully contacted with the part to be tested of the PCBA circuit board.

This radio frequency test equipment fixing device utilizes the invariant of the biggest deflection of elastic component, has realized the restriction of the contact stroke of the test position of radio frequency test equipment and the portion to be measured of PCBA circuit board indirectly, thereby guarantee in the test process of PCBA circuit board, the best contact stroke has between test position and the portion to be measured, in the radio frequency test equipment fixing device in the past, because of the both misdetection that the contact is insufficient and lead to and because of the drawback of the spare part damage that the both excessively contact leads to, the stability and the accuracy nature of test have greatly been guaranteed, thereby the misdetection rate of PCBA circuit board has been reduced and the efficiency of testing of producing the line has been improved, and then the processing cost has been practiced thrift. In addition, the radio frequency test equipment fixing device is simple in structure, easy to realize in scheme and significant in improvement of test efficiency of key components in the communication equipment industry.

The second objective of the present invention is to provide a radio frequency test system, so as to solve the technical problems of poor test stability and low test efficiency of the existing PCBA circuit board.

The radio frequency test system provided by the invention comprises radio frequency test equipment, a comprehensive tester and the radio frequency test equipment fixing device.

The radio frequency test equipment is installed on the radio frequency test equipment fixing device and is electrically connected with the comprehensive tester.

The radio frequency test system of the invention has the following beneficial effects:

by arranging the radio frequency test equipment, the comprehensive tester and the radio frequency test equipment fixing device in the radio frequency test system, when the PCBA circuit board reaches the state that the part to be tested is fully contacted with the test part of the radio frequency test equipment under the action of the radio frequency test equipment fixing device, the radio frequency test equipment outputs the tested data signal to the comprehensive tester, and the test result is analyzed and processed through the comprehensive tester.

Accordingly, the rf testing system has all the advantages of the fixing apparatus of the rf testing device, and is not described herein again.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.

FIG. 1 is a front partial cross-sectional view of a prior art radio frequency test equipment fixture in which a PCBA circuit board is in an untested state;

FIG. 2 is another front partial cross-sectional view of a prior art RF test equipment fixture with a PCBA circuit board in a test condition;

FIG. 3 is a front partial cross-sectional view of a first RF test equipment fixture according to an embodiment of the present invention, wherein the PCBA is in an untested state;

FIG. 4 is an enlarged view of a portion of FIG. 3 at A;

FIG. 5 is another front partial cross-sectional view of a first RF test equipment fixture in accordance with an embodiment of the present invention, wherein a PCBA circuit board is in a test state;

FIG. 6 is a partial enlarged view of FIG. 5 at B;

FIG. 7 is a front partial cross-sectional view of a second fixture for RF test equipment according to an embodiment of the present invention, wherein the PCBA is in an untested state;

fig. 8 is another front partial cross-sectional view of a second radio frequency test equipment fixture in accordance with an embodiment of the present invention, wherein a PCBA circuit board is in a test position.

Icon: 100' -radio frequency test equipment; 300' -a carrier plate; 400' -a positioning plate; 600' -PCBA circuit board;

100-radio frequency test equipment; 200-a connection assembly; 300-a carrier plate; 400-positioning a plate; 500-a guide assembly; 600-a PCBA circuit board; 700-test seat; 800-shrapnel; 900-support spring; 110-a body; 120-a probe; 111-a head; 112-outer edge; 210-connecting column; 220-a compression spring; 510-guide pillars; 520-guide sleeve.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the following will clearly and completely describe the technical solutions of the present invention with reference to the accompanying drawings. It is to be understood that the described embodiments are merely a few embodiments of the invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inside", "outside", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "connected," "connected," and "mounted" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

As shown in fig. 3 and fig. 5, the present embodiment provides a fixing apparatus for a radio frequency testing device, which includes a supporting platform capable of moving relative to the radio frequency testing device 100 and an elastic member for ensuring a relative displacement therebetween, specifically, a supporting surface of the supporting platform protrudes from a testing portion of the radio frequency testing device 100, and a PCBA circuit board 600 is disposed on the supporting surface.

When the radio frequency test equipment fixing device is used for testing the PCBA circuit board 600, the PCBA circuit board 600 is placed on the bearing surface of the bearing platform, and then the PCBA circuit board 600 is pressed downwards. In the process of downward movement of the PCBA circuit board 600, the portion to be tested of the PCBA circuit board 600 gradually comes into contact with the test portion of the radio frequency test device 100, and in the process of continuing to press down the PCBA circuit board 600, the amount of deformation of the elastic member gradually increases. When the deformation of the elastic member reaches the maximum, the test portion of the rf test device 100 is just in full contact with the portion to be tested of the PCBA circuit board 600.

The radio frequency test equipment fixing device indirectly limits the contact stroke of the test part of the radio frequency test equipment 100 and the part to be tested of the PCBA 600 by utilizing the constancy of the maximum deformation of the elastic piece, thereby ensuring that the best contact stroke exists between the test part and the part to be tested in the test process of the PCBA 600, improving the defects of misdetection caused by insufficient contact of the two parts and damage of parts caused by excessive contact of the two parts in the traditional radio frequency test equipment fixing device, greatly ensuring the stability and accuracy of the test, reducing the misdetection rate of the PCBA 600, improving the test efficiency of a production line, and further saving the processing cost. In addition, the radio frequency test equipment fixing device is simple in structure, easy to realize in scheme and significant in improvement of test efficiency of key components in the communication equipment industry.

Referring to fig. 3 in combination with fig. 4, in the present embodiment, the testing portion of the rf testing apparatus 100 is a probe 120. Specifically, the radio frequency test apparatus 100 includes a body 110 and a head 111, the probe 120 is disposed in the body 110, and the probe 120 is disposed lower than the head 111. Wherein the head 111 is elastically deformable and the probe 120 is also elastically deformable. The part to be tested of the PCBA 600 comprises a test seat 700 fixedly arranged on the PCBA, and an elastic sheet 800 is arranged inside the test seat 700.

The principle of the test part of the radio frequency test equipment 100 for testing the PCBA circuit board 600 is as follows: as shown in fig. 4-6, during the process of pressing down the PCBA circuit board 600, the test socket 700 first contacts the head 111, and when the amount of compressive deformation of the head 111 reaches a maximum, the probe 120 will gradually contact the spring plate 800 during the process of continuing to press down the PCBA circuit board 600, and the test of the PCBA circuit board 600 is realized through the contact deformation of the probe 120 and the spring plate 800. In this embodiment, by providing the elastic member, when the PCBA circuit board 600 continues to be pressed down until the elastic member reaches the maximum deformation amount, at this time, the probe 120 and the spring piece 800 reach the optimal contact stroke, thereby implementing the accurate test on the PCBA circuit board 600.

It should be noted that, in the present embodiment, the elastic member may be a compression spring 220. "compression spring 220" refers to: during downward movement of the PCBA circuit board 600, the compression springs 220 compressively deform. In the present embodiment, the compression spring 220 may be in a natural state or a compressed state in the non-operating state.

It should also be noted that in this embodiment, the carrying platform moves along the length direction of the probe 120.

Referring to fig. 3 and fig. 5, in the present embodiment, the fixing apparatus for an rf testing device may further include a carrier board 300 for mounting the rf testing device 100. Specifically, the carrier 300 is fixed in position, the rf testing apparatus 100 passes through the carrier 300, and the compression spring 220 is disposed between the rf testing apparatus 100 and the carrier 300. As the rf test device 100 is moved in compression, the compression spring 220 is gradually compressed.

By providing the carrier board 300, the mounting of the radio frequency test apparatus 100 is achieved. In addition, by arranging the compression spring 220 which is gradually compressed along with the movement of the radio frequency testing equipment 100, when the compression spring 220 is compressed to the maximum deformation amount each time, the probe 120 and the elastic sheet 800 have consistent contact stroke, the testing accuracy is further improved, and the working reliability of the fixing device of the radio frequency testing equipment of the embodiment is ensured.

Referring to fig. 3 and 5, the rf testing apparatus 100 is mounted on the carrier board 300 by the connecting assembly 200, specifically, the connecting assembly 200 includes a plurality of connecting posts 210, and each connecting post 210 passes through the outer edge 112 of the rf testing apparatus 100 and is fixed on the carrier board 300. In addition, a limiting portion is disposed at one end of each connecting column 210 away from the carrier 300, the compression spring 220 can extend between the outer edge 112 and the limiting portion, and the outer edge 112 is sleeved on the connecting column 210.

In this embodiment, the compression spring 220 is sleeved on the connecting column 210. Also, the connecting column 210 may further comprise a guide portion for guiding the movement of the rim 112, wherein the rim 112 can be fitted to slide on the guide portion.

When the rf testing apparatus 100 moves downward relative to the carrier 300, the rim 112 will gradually separate from the lower surface of the carrier 300 and compress the compression spring 220, and the probe 120 and the spring plate 800 have an optimal contact stroke when the compression spring 220 reaches a maximum compression amount.

The compression spring 220 is sleeved on the connecting column 210 in an empty mode, and the assembly is convenient. In addition, the guide part is arranged on the connecting column 210 to guide the movement process of the outer edge 112, so that the unfavorable situation of poor detection reliability caused by the inclination of the probe 120 is avoided to a certain extent, and the working reliability of the fixing device of the radio frequency testing equipment in the embodiment is further improved.

Referring to fig. 3 and 5, in the present embodiment, the connecting column 210 can be provided with a threaded section. Specifically, the connecting column 210 is screwed and fixed on the carrier plate 300 through a threaded section. Threaded connection is reliable, and easy dismounting has improved this embodiment radio frequency test equipment fixing device's maintenance efficiency greatly.

In addition, the threaded section is arranged on the connecting column 210 to be fixedly connected with the carrier plate 300, and the maximum deformation of the compression spring 220 can be adjusted by screwing or unscrewing the connecting column 210, so that the test requirements of different products are met, and the universality is high.

Referring to fig. 3 and fig. 5, in the present embodiment, the supporting platform may include a positioning plate 400 and a supporting member for supporting the positioning plate 400, specifically, the positioning plate 400 is sleeved on the rf testing apparatus 100, the supporting member is disposed between the positioning plate 400 and the carrier 300, and the supporting member can extend and retract in a moving direction of the positioning plate 400. Wherein, the positioning plate 400 is sleeved on the body 110.

When the fixing device of the radio frequency testing equipment is in a non-working state, the support member supports the positioning plate 400 to a certain height, and at this time, the positioning plate 400 and the carrier plate 300 are spaced by a certain distance; in the operating state, the supporting members are contracted as the positioning plate 400 is gradually moved downward.

Specifically, in this embodiment, the supporting member may be an elastic supporting member, such as: supporting the spring 900.

Referring to fig. 3 and 5, in the present embodiment, the fixing apparatus for rf testing equipment may further include a guiding assembly 500 for guiding the movement of the positioning plate 400. Specifically, the guide assembly 500 includes a guide post 510 disposed on the positioning plate 400 and a guide sleeve 520 disposed on the carrier plate 300, wherein the guide post 510 can be slidably fitted in the guide sleeve 520 when the positioning plate 400 moves up or down. In addition, in the present embodiment, the guiding assemblies 500 are at least one set.

The arrangement of the guiding assembly 500 realizes the guiding of the moving path of the positioning plate 400, and further ensures the working reliability of the fixing device of the radio frequency testing equipment of the embodiment.

In this embodiment, the carrier 300 may be provided with a guide hole, wherein the supporting spring 900 is disposed in the guide hole, the guide sleeve 520 is fixedly sleeved in the guide hole, and the free end of the guide pillar 510 abuts against the supporting spring 900. As shown in fig. 3, in the non-operating state of the fixing device of the radio frequency testing apparatus, the supporting spring 900 supports the guide post 510, so as to support the positioning plate 400; during the downward movement of the positioning plate 400, the guide post 510 moves under the guiding action of the guide sleeve 520 and compresses the supporting spring 900.

It should be noted that, in the embodiment, the structure form that the guide pillar 510 is disposed on the positioning plate 400 and the guide sleeve 520 is disposed on the carrier plate 300 may be adopted, but the present invention is not limited to this, and other arrangement forms may also be adopted, such as: the guide column 510 is disposed on the carrier plate 300, and the guide sleeve 520 is disposed on the positioning plate 400, as long as the movement of the positioning plate 400 can be guided by the structure of the guide assembly 500.

It should be noted that, in the present embodiment, the guiding assembly 500 and the supporting spring 900 may be disposed coaxially, but not limited to this, and other configurations may also be adopted, such as: the axes of the positioning plate 400 can be parallel to each other, and the positioning plate 400 can be guided and supported by the guide assembly 500 and the support spring 900 having the above structure.

In this embodiment, the guide sleeve 520 may be a linear bearing.

In addition, in this embodiment, the supporting spring 900 may also adopt the structural form shown in fig. 7 and 8, specifically, the supporting spring 900 is disposed between the positioning plate 400 and the carrier plate 300, one end of the supporting spring is abutted against the lower surface of the positioning plate 400, the other end of the supporting spring is abutted against the upper surface of the carrier plate 300, and the supporting spring 900 is sleeved on the guide post 510.

The working process of the radio frequency test equipment fixing device is as follows: when the PCBA circuit board 600 needs to be tested, as shown in fig. 3, it is placed on the positioning plate 400, at this time, as shown in fig. 4, the head 111 of the rf testing device 100 is not deformed, and the probe 120 is not deformed; then, as shown in fig. 5 and 6, a downward pressure is applied to the PCBA circuit board 600, the head 111 is compressed first during the downward movement of the PCBA circuit board, when the head 111 is compressed to the limit position, the rf testing device 100 and the carrier board 300 start to be separated, the compression spring 220 is compressed, and the probe 120 gradually contacts the spring plate 800 during the downward movement of the rf testing device 100; when the amount of compression deformation of the compression spring 220 is maximized, the contact stroke of the probe 120 and the spring plate 800 reaches an optimal state, and at this time, the PCBA circuit board 600 is tested.

The embodiment further provides a radio frequency testing system, which comprises a radio frequency testing device 100, a comprehensive testing instrument and the radio frequency testing device fixing device. Specifically, the radio frequency test device 100 is mounted on the radio frequency test device fixing apparatus, and the radio frequency test device 100 is electrically connected to the integrated tester.

When the PCBA circuit board 600 reaches a state where the spring 800 is in full contact with the probe 120 under the action of the fixing device of the radio frequency testing device, the radio frequency testing device 100 outputs the tested data signal to the comprehensive tester, and the test result is analyzed and processed by the comprehensive tester.

In addition, in this embodiment, a pressure device for applying pressure to PCBA circuit board 600 may also be provided.

Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A radio frequency test equipment fixing device is characterized by comprising a bearing platform capable of moving relative to radio frequency test equipment and an elastic piece for ensuring the relative displacement of the bearing platform and the radio frequency test equipment, wherein the bearing surface of the bearing platform protrudes out of a test part of the radio frequency test equipment;

the radio frequency test equipment fixing device also comprises a carrier plate for mounting the radio frequency test equipment; the carrier plate is fixed in position, the radio frequency test equipment penetrates through the carrier plate, and the elastic piece is arranged between the radio frequency test equipment and the carrier plate; when the radio frequency test equipment is pressed to move, the elastic piece is compressed;

the PCBA circuit board is arranged on the bearing surface, and when the PCBA circuit board is pressed down to the maximum deformation of the elastic piece, the test part is in full contact with the part to be tested of the PCBA circuit board;

the test part comprises a probe, the radio frequency test equipment comprises a body and a head, the probe is arranged in the body and is lower than the head, and the head can elastically deform.

2. The radio frequency testing device fixing apparatus according to claim 1, wherein the radio frequency testing device is mounted on the carrier board through a connecting assembly, the connecting assembly includes a plurality of connecting posts, each connecting post passes through an outer edge of the radio frequency testing device and is fixed to the carrier board, a limiting portion is disposed at one end of each connecting post away from the carrier board, and the elastic member includes a compression spring extending and contracting between the outer edge and the limiting portion;

the outer edge is sleeved on the connecting column in an empty mode.

3. The radio frequency test equipment fixture of claim 2 wherein said compression spring is over-sleeved on said attachment post.

4. The radio frequency test equipment fixture of claim 2 or 3, wherein the attachment stud further comprises a guide for guiding movement of the rim, the rim sliding in cooperation on the guide.

5. The radio frequency test equipment fixing device of claim 2 or 3, wherein the connecting column comprises a threaded section, and the connecting column is screwed and fixed on the carrier plate through the threaded section.

6. The radio frequency test equipment fixing device according to claim 1, wherein the carrying platform includes a positioning plate and a supporting member for supporting the positioning plate, the positioning plate is loosely sleeved on the radio frequency test equipment, the supporting member is disposed between the positioning plate and the carrier plate, and the supporting member is capable of extending and retracting in a movement direction of the positioning plate.

7. The radio frequency test equipment fixture of claim 6 wherein the support comprises a support spring.

8. The radio frequency test equipment fixing device according to claim 6 or 7, further comprising a guide assembly for guiding the movement of the positioning plate;

the guide assembly comprises a guide pillar arranged on one of the positioning plate and the carrier plate and a guide sleeve arranged on the other one of the positioning plate and the carrier plate, and the guide pillar is matched and slides in the guide sleeve;

the guide assemblies are at least one group.

9. A radio frequency test system comprising a radio frequency test device, a comprehensive tester, and the radio frequency test device holding apparatus of any one of claims 1-8;