Clamping device and testing method for radio frequency testing

Abstract

The present invention discloses a clamping device and a testing method for radio frequency testing, and belongs to the field of radio frequency technology. The clamping device for radio frequency testing of the present invention comprises a first adapter plate, a second adapter plate, two radio frequency socket groups, a connecting assembly and a probe, an antenna is provided on the second adapter plate, the two radio frequency socket groups comprise a first radio frequency socket group and a second radio frequency socket group, the first radio frequency socket group is mounted on the first adapter plate, the second radio frequency socket group is mounted on the second adapter plate, one end of the connecting assembly is connected to the first adapter plate, the other end of the connecting assembly is connected to the second adapter plate, and the probe is sequentially connected to the first adapter plate, the connecting assembly and the second adapter plate. This clamping device for radio frequency testing can directly obtain the test error value, eliminate the error caused by the clamping device when testing the test piece, and improve the accuracy of the test data.

Description

Technical Field

[0001] The present invention relates to the field of radio frequency technology, and in particular to a clamping device and a testing method for radio frequency testing. Background Art

[0002] At present, when performing RF testing on microwave devices or antennas, the test data of the device under test is often inaccurate due to the error caused by the clamping device, and the error of the clamping device cannot be measured. Therefore, how to provide a clamping device that can measure the test error value to eliminate the error caused by the clamping device and improve the accuracy of the test data has become a problem that needs to be solved urgently. Summary of the invention

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention provides a clamping device for radio frequency testing, which can conveniently measure the test error value, eliminate the error caused by the clamping device, and improve the accuracy of the test data.

[0004] The present invention also provides a testing method with the clamping device.

[0005] A clamping device for radio frequency testing according to a first aspect of the present invention includes:

[0006] A first adapter plate;

[0007] A second adapter board, wherein an antenna is provided on the second adapter board;

[0008] Two radio frequency socket groups, including a first radio frequency socket group and a second radio frequency socket group, wherein the first radio frequency socket group is mounted on the first adapter plate, and the second radio frequency socket group is mounted on the second adapter plate;

[0009] A connecting component, one end of which is connected to the first adapter plate, and the other end of which is connected to the second adapter plate;

[0010] A probe is sequentially connected to the first adapter board, the connection component and the second adapter board.

[0011] The clamping device for radio frequency testing according to the embodiment of the present invention has at least the following beneficial effects: the clamping device for radio frequency testing is provided with a first adapter plate and a second adapter plate, and a first radio frequency socket group and a second radio frequency socket group are respectively provided on the two adapter plates, an antenna is provided on the second adapter plate, and a probe is connected to the first adapter plate, a connecting assembly and a second adapter plate in sequence. The test error value can be directly obtained through the probe and antenna of the clamping device, thereby eliminating the error caused by the clamping device when testing the test piece, and improving the accuracy of the test data.

[0012] According to some embodiments of the present invention, the antenna is V-shaped.

[0013] According to some embodiments of the present invention, the connection assembly includes a first connection member, the first connection member is provided with a first recessed portion, and the first recessed portion is used to accommodate the second adapter plate.

[0014] According to some embodiments of the present invention, the connection assembly further includes a second connection member, the second connection member is provided with a second recessed portion, and the second recessed portion is used to accommodate the first adapter plate.

[0015] According to some embodiments of the present invention, the connection assembly further includes a third connection member, and the third connection member is respectively connected to the second connection member and the first adapter plate.

[0016] According to some embodiments of the present invention, a third recessed portion is further provided on the second connecting member, and the third recessed portion is used to accommodate the third connecting member.

[0017] According to some embodiments of the present invention, the connection assembly further includes a fourth connection member, and the fourth connection member is respectively connected to the first connection member and the second connection member.

[0018] According to some embodiments of the present invention, a protrusion is further provided on the third connecting member.

[0019] According to some embodiments of the present invention, a plurality of first through holes are provided on the first connecting member, the third connecting member and the fourth connecting member, and a second through hole is provided on the second connecting member. The plurality of first through holes and the second through holes are used for the probe to sequentially connect the second adapter board, the first connecting member, the fourth connecting member, the second connecting member, the third connecting member and the first adapter board.

[0020] The testing method according to the second aspect of the present invention comprises:

[0021] Performing a radio frequency test on the calibration test piece to obtain a first test value, wherein the calibration test piece includes the clamping device and the test piece;

[0022] Performing a radio frequency test on the clamping device to obtain a second test value;

[0023] A parameter value of the device under test is obtained according to the first test value and the second test value.

[0024] The testing method according to the embodiment of the present invention has at least the following beneficial effects: this testing method can conveniently obtain a first test value by performing a radio frequency test on the calibration piece to be tested, and then perform a radio frequency test on the clamping device to obtain a second test value; since the calibration piece to be tested includes a clamping device and the piece to be tested, the error caused by the clamping device can be eliminated based on the first test value and the second test value, and the parameter value of the piece to be tested can be obtained, thereby improving the accuracy of the test data.

[0025] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein:

[0027] Figure 1 It is a schematic structural diagram of a clamping device for radio frequency testing according to an embodiment of the present invention;

[0028] Figure 2 for Figure 1 An exploded view of a clamping device for RF testing in FIG.

[0029] Figure 3 for Figure 1 A schematic structural diagram of the second adapter board in FIG.

[0030] Figure 4 for Figure 1 A schematic structural diagram of the first connecting member in FIG.

[0031] Figure 5 for Figure 1 A schematic structural diagram of the second connecting member in FIG.

[0032] Figure 6 for Figure 1 A schematic structural diagram of the third connecting member in FIG.

[0033] Figure 7 for Figure 1 A schematic structural diagram of the fourth connecting member in FIG.

[0034] Figure 8 The figure is a flow chart of a testing method according to an embodiment of the present invention.

[0035] Figure numerals: 110, first adapter plate; 120, second adapter plate; 130, first RF socket group; 140, second RF socket group; 150, connection assembly; 160, probe; 170, antenna; 210, first connector; 220, second connector; 230, third connector; 240, fourth connector; 410, first through hole; 420, first recessed portion; 430, fourth recessed portion; 510, second recessed portion; 520, third recessed portion; 530, second through hole; 610, protrusion. DETAILED DESCRIPTION

[0036] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0037] In the description of the present invention, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., and orientations or positional relationships indicated are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0038] In the description of the present invention, "several" means more than one, "many" means more than two, "greater than", "less than", "exceed", etc. are understood to exclude the number itself, and "above", "below", "within", etc. are understood to include the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0039] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0040] In the description of the present invention, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0041] First, refer to Figure 1 The clamping device for radio frequency testing according to the embodiment of the present invention comprises a first adapter plate 110, a second adapter plate 120, two radio frequency socket groups, a connecting component 150 and a probe 160, wherein an antenna 170 is provided on the second adapter plate 120, the two radio frequency socket groups comprise a first radio frequency socket group 130 and a second radio frequency socket group 140, the first radio frequency socket group 130 is mounted on the first adapter plate 110, the second radio frequency socket group 140 is mounted on the second adapter plate 120, one end of the connecting component 150 is connected to the first PCB board 110, the other end of the connecting component 150 is connected to the second adapter plate 120, and the probe 160 is sequentially connected to the first adapter plate 110, the connecting component 150 and the second adapter plate 120.

[0042] The clamping device for radio frequency testing is provided with a first adapter plate 110, a second adapter plate 120, a connecting assembly 150 and a probe 160. An antenna 170 is provided on one side of the second adapter plate 120, and a second radio frequency seat group 140 is installed on the other side of the second adapter plate 120. A first radio frequency seat group 130 is installed on one side of the first adapter plate 110, and the other side of the first adapter plate 110 is connected to the connecting assembly 150. The probe 160 passes through the first adapter plate 110, the connecting assembly 150 and the second adapter plate 120 in sequence. It should be noted that the length of the probe 160 and the antenna 170 is set according to actual needs. For example, the length of the probe 160 and the antenna 170 is twice the length of the probe and antenna of the existing clamping device. The connecting assembly 150 is a needle mold. The first radio frequency seat group 130 includes two radio frequency seats, which are symmetrically installed on the first adapter plate 110, and the second radio frequency seat group 140 includes two radio frequency seats, which are symmetrically installed on the second adapter plate 120. At present, when performing radio frequency testing on the piece to be tested, the error caused by the probe in the existing clamping device to the test result cannot be measured, the clamping device for radio frequency testing in the embodiment of the present invention is used to set the first adapter plate and the second adapter plate, and the first radio frequency socket group and the second radio frequency socket group are respectively arranged on the two adapter plates, and the second adapter plate is provided with an antenna, and the probe is connected to the first adapter plate, the connecting assembly and the second adapter plate in sequence. The test error value can be directly obtained through the probe and antenna of the clamping device, thereby eliminating the error caused by the clamping device when testing the piece to be tested, and improving the accuracy of the test data.

[0043] Reference Figure 1 and Figure 3 In some embodiments, the antenna 170 is V-shaped. In order to ensure stable transmission of the antenna 170, the antenna 170 is set to be V-shaped, so that the signal data received and sent by the antenna 170 can be stably transmitted, thereby improving the test accuracy.

[0044] Reference Figure 1 and Figure 3 In some specific embodiments, the first adapter plate 110 and the second adapter plate 120 are T-shaped structures. This can effectively reduce the volume of the first adapter plate 110 and the second adapter plate 120, which is conducive to the miniaturization design of the clamping device and can also save costs. In other embodiments, the first adapter plate 110 and the second adapter plate 120 can also be other structures, not limited thereto.

[0045] Reference Figure 2 In some embodiments, the connection assembly 150 adopts a rounded corner design. By setting the first connection member 210, the second connection member 220, the third connection member 230, and the fourth connection member 240 of the connection assembly 150 to have rounded corners, the safety of the clamping device can be improved.

[0046] In some specific embodiments, the first connecting member 210, the second connecting member 220, the third connecting member 230, and the fourth connecting member 240 are all rectangular prisms. In other embodiments, the first connecting member 210, the second connecting member 220, the third connecting member 230, and the fourth connecting member 240 may also be other structures, not limited to this.

[0047] In some specific embodiments, the first connecting member 210, the second connecting member 220, and the fourth connecting member 240 can be set as a rectangular parallelepiped with the same length and width, which can improve the installation stability and is also conducive to the miniaturization design of the clamping device. In some other embodiments, the length and width of the first connecting member 210, the second connecting member 220, and the fourth connecting member 240 can also be set according to actual conditions, without limitation thereto.

[0048] It should be noted that the thickness of the first connecting member 210 , the second connecting member 220 , the third connecting member 230 , and the fourth connecting member 240 can be set according to actual conditions without limitation.

[0049] Reference Figure 2 and Figure 4 In some embodiments, the connection assembly 150 includes a first connection member 210, and a first recessed portion 420 is provided on the first connection member 210. The first recessed portion 420 is used to accommodate the second adapter plate 120. The first recessed portion 420 is provided on one side of the first connection member 210. When the first connection member 210 is connected to the second adapter plate 120, the first recessed portion 420 can accommodate the second adapter plate 120, which can effectively reduce the volume of the clamping device. The first recessed portion 420 can be a U-shaped groove, which can make the second adapter plate 120 and the first connection member 210 tightly connected, thereby improving the stability of the clamping device.

[0050] In some specific embodiments, in order to protect the antenna, a fourth recess 430 is further provided on the first connector 210, and the antenna 170 on the second adapter plate 120 is accommodated by the fourth recess 430, thereby ensuring the stability of the antenna 170 during testing and improving the test accuracy.

[0051] Reference Figure 2 and Figure 5 In some embodiments, the connection assembly 150 further includes a second connection member 220, and a second recessed portion 510 is provided on the second connection member 220, and the second recessed portion 510 is used to accommodate the first adapter plate 110. A second recessed portion 510 is provided on one side of the second connection member 220, and when the second connection member 220 is connected to the first adapter plate 110, the second recessed portion 510 can accommodate the first adapter plate 110, which can effectively reduce the volume of the clamping device. The second recessed portion 510 can be a U-shaped groove, which can make the first adapter plate 110 and the second connection member 220 tightly connected, thereby improving the stability of the clamping device. In other embodiments, the second recessed portion 510 can also be other forms, not limited thereto.

[0052] Reference Figure 2 and Figure 6 In some embodiments, the connection assembly 150 further includes a third connection member 230, and the third connection member 230 is respectively connected to the second connection member 220 and the first adapter plate 110. In order to further improve the stability of the clamping device, the connection assembly 150 further includes a third connection member 230, one side of the third connection member 230 is connected to the first adapter plate 110, and the other side of the third connection member 230 is connected to the second connection member 220, which can further increase the length of the connection assembly 150, so that the probe 160 can be better connected between the first adapter plate 110 and the second adapter plate 120, thereby improving the connection stability of the probe 160.

[0053] In some embodiments, the second connector 220 is further provided with a third recessed portion 520, and the third recessed portion 520 is used to accommodate the third connector 230. The third recessed portion 520 is provided on one side of the second connector 220, and when the second connector 220 is connected to the third connector 230, the third recessed portion 520 can accommodate the third connector 230, which can effectively reduce the volume of the clamping device. The third recessed portion 520 can be a U-shaped groove, which can make the third connector 230 and the second connector 220 tightly connected, thereby improving the stability of the clamping device. In other embodiments, the third recessed portion 520 can also be other forms, not limited thereto.

[0054] Reference Figure 2 and Figure 7In some embodiments, the connection assembly 150 further includes a fourth connection member 240, which is respectively connected to the first connection member 210 and the second connection member 220. In order to ensure the connection stability of the probe 160, the connection assembly 150 further includes a fourth connection member 240, one side of the fourth connection member 240 is connected to the first connection member 210, and the other side of the fourth connection member 240 is connected to the second connection member 220, which can further increase the length of the connection assembly 150, so that the probe 160 can be better connected between the first adapter plate 110 and the second adapter plate 120, thereby improving the connection stability of the probe 160.

[0055] In some specific embodiments, a protrusion 610 is further provided on the third connection member 230. In order to ensure the accuracy of the test, the protrusions 610 are provided at both ends of the third connection member 230, and the third connection member 230 is connected to the first adapter board 110 through the protrusions 610. There is a certain space between the first adapter board 110 and the third connection member 230, which can play a certain protective role on the circuit on the first adapter board 110, so that the test of the clamping device during the test is stable, and the accuracy of the test is improved.

[0056] Reference Figures 2 to 7 In order to ensure that the probe 160 can be better connected between the first adapter board 110, the connecting assembly 150 and the second adapter board 120, in some embodiments, a plurality of first through holes 410 are provided on the first connecting member 210, the third connecting member 220 and the fourth connecting member 240, and a second through hole 530 is provided on the second connecting member 220. The plurality of first through holes 410 and the second through holes 530 are used for the probe to sequentially connect the second adapter board 120, the first connecting member 210, the fourth connecting member 240, the second connecting member 220, the third connecting member 230 and the first adapter board 110. Through the second through hole 530, the probe 160 can better avoid the wiring on the first adapter board 110 when passing through the first adapter board 110, the third connector 230 and the second connector 220 in sequence, thereby ensuring the accuracy of the test. The aperture of the first through holes 410 is consistent with the diameter of the probe 160, so that the probe 160 is more stable when passing through the first connector 210, the third connector 220 and the fourth connector 240, thereby ensuring the stability of the clamping device.

[0057] Second, refer to Figure 8 The testing method of the embodiment of the present invention is used to test the clamping device and calibrate the test piece, including:

[0058] S801, performing a radio frequency test on the calibration test piece to obtain a first test value, wherein the calibration test piece includes a clamping device and the test piece;

[0059] S802, performing a radio frequency test on the clamping device to obtain a second test value;

[0060] S803, obtaining a parameter value of the device under test according to the first test value and the second test value.

[0061] First, a full two-port calibration is performed on the vector network analyzer, and the calibrated vector network analyzer is used to perform an RF test on the calibration piece to be tested to obtain a first test value; then, a full two-port calibration is performed on the vector network analyzer again, and the calibrated vector network analyzer is used to perform an RF test on the clamping device to obtain a second test value. The calibration piece to be tested includes the clamping device and the piece to be tested, and the difference between the first test value and the second test value is made, and the difference obtained is the parameter value of the piece to be tested. It should be noted that when the existing clamping device is used to perform an RF test on the piece to be tested, the test data includes the error of the existing clamping device, and this error cannot be eliminated, and it is impossible to measure it. Through the test method of the embodiment of the present invention, the error value can be directly obtained, and then the error can be eliminated after the piece to be tested is tested, so as to obtain a more accurate measurement value.

[0062] The testing method according to the embodiment of the present invention has at least the following beneficial effects: this testing method can conveniently obtain a first test value by performing a radio frequency test on the calibration piece to be tested, and then perform a radio frequency test on the clamping device to obtain a second test value; since the calibration piece to be tested includes a clamping device and the piece to be tested, the error caused by the clamping device can be eliminated based on the first test value and the second test value, and the parameter value of the piece to be tested can be obtained, thereby improving the accuracy of the test data.

[0063] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments. Various changes can be made within the knowledge of ordinary technicians in the relevant technical field without departing from the purpose of the present invention. In addition, the embodiments of the present invention and the features in the embodiments can be combined with each other without conflict.

Claims

1. A clamping device for radio frequency testing, characterized in that: include: A first adapter plate; A second adapter board, wherein an antenna is provided on the second adapter board; Two radio frequency socket groups, including a first radio frequency socket group and a second radio frequency socket group, wherein the first radio frequency socket group is mounted on the first adapter plate, and the second radio frequency socket group is mounted on the second adapter plate; A connecting component, one end of which is connected to the first adapter plate, and the other end of which is connected to the second adapter plate; A probe is sequentially connected to the first adapter board, the connection component and the second adapter board.

2. The clamping device according to claim 1, characterized in that: The antenna is V-shaped.

3. The clamping device according to claim 1, characterized in that: The connection assembly includes a first connection member, the first connection member is provided with a first recessed portion, and the first recessed portion is used to accommodate the second adapter plate.

4. The clamping device according to claim 3, characterized in that: The connection assembly further includes a second connection member, on which a second recessed portion is provided, and the second recessed portion is used to accommodate the first adapter plate.

5. The clamping device according to claim 4, characterized in that: The connection assembly further includes a third connection member, and the third connection member is respectively connected to the second connection member and the first adapter plate.

6. The clamping device according to claim 5, characterized in that: The second connecting member is also provided with a third recessed portion, and the third recessed portion is used to accommodate the third connecting member.

7. The clamping device according to claim 5, characterized in that: The third connecting member is also provided with a protrusion.

8. The clamping device according to claim 5, characterized in that: The connection assembly further includes a fourth connection member, and the fourth connection member is respectively connected to the first connection member and the second connection member.

9. The clamping device according to claim 8, characterized in that: The first connecting member, the third connecting member and the fourth connecting member are provided with a plurality of first through holes, the second connecting member is provided with a second through hole, and the plurality of first through holes and the second through holes are used for the probe to sequentially connect the second adapter board, the first connecting member, the fourth connecting member, the second connecting member, the third connecting member and the first adapter board.

10. A test method for testing the clamping device according to any one of claims 1 to 9 and verifying a test piece, characterized in that: include: Performing a radio frequency test on the calibration test piece to obtain a first test value, wherein the calibration test piece includes the clamping device and the test piece; Performing a radio frequency test on the clamping device to obtain a second test value; A parameter value of the device under test is obtained according to the first test value and the second test value.

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