Waveguide test fixture

Abstract

The utility model discloses a waveguide test fixture, which comprises a lower mounting bottom plate, a lower cavity, an upper cavity, a PCB (printed circuit board), a micro rectangular electric connector and an adapter block, wherein the lower cavity, the upper cavity and the PCB are fixed on the lower mounting bottom plate and are sequentially distributed from bottom to top; the micro rectangular electric connector is fixed on the lower cavity and penetrates through the upper cavity; the high-frequency radio-frequency coaxial connector is fixed on the switching block and is electrically connected with the PCB; the micro rectangular electric connector and the high-frequency radio-frequency coaxial connector are electrically connected with a to-be-tested element; and the micro rectangular electric connector is connected with the PCB. According to the scheme, the waveguide testing device has the advantages of being simple in structure, reliable in testing and the like, and has high practical value and popularization value in the technical field of waveguide testing.

Description

Technical Field

[0001] This utility model relates to the field of waveguide testing technology, and in particular to a waveguide testing fixture. Background Technology

[0002] Waveguide testing refers to the detection and analysis of various performance parameters of waveguides to evaluate their application effects in optics, microwave, and other fields. This technology primarily focuses on waveguide testing of millimeter-wave rectangular waveguide chips. Currently, there are no corresponding test fixtures available in existing technologies.

[0003] Therefore, there is an urgent need to propose a waveguide test fixture that is simple in structure and reliable in testing. Utility Model Content

[0004] To address the above problems, the purpose of this utility model is to provide a waveguide testing fixture. The technical solution adopted by this utility model is as follows:

[0005] A waveguide test fixture for clamping and testing a component under test includes a lower mounting base plate, a lower cavity, an upper cavity, and a PCB board arranged sequentially from bottom to top on the lower mounting base plate, a micro-rectangular electrical connector fixed on the lower cavity and penetrating the upper cavity, an adapter block fixed on the lower cavity, and a high-frequency radio frequency coaxial connector fixed on the adapter block and electrically connected to the PCB board; the micro-rectangular electrical connector and the high-frequency radio frequency coaxial connector are electrically connected to the component under test; the micro-rectangular electrical connector is connected to the PCB board.

[0006] Furthermore, a strip-shaped blind hole is provided on the lower cavity; a U-shaped groove is provided on the lower cavity and around the perimeter of the strip-shaped blind hole; several stepped sections are provided inside the strip-shaped blind hole.

[0007] Furthermore, the stepped section is provided with five steps.

[0008] Furthermore, a micro-rectangular electrical connector mounting slot is provided on the lower cavity; the micro-rectangular electrical connector is fixed in the micro-rectangular electrical connector mounting slot.

[0009] Furthermore, a strip-shaped hole is provided on the upper cavity; the strip-shaped hole is located at the top of the stepped portion.

[0010] Furthermore, a rectangular groove is formed on the upper cavity; the micro rectangular electrical connector is disposed through the rectangular groove.

[0011] Furthermore, the upper cavity is provided with several connection holes.

[0012] Furthermore, a PCB board mounting slot is provided on the upper cavity; the PCB board is placed in the PCB board mounting slot.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] (1) This utility model provides a lower cavity and an upper cavity. The lower cavity is provided with a strip-shaped blind hole, a U-shaped groove and a stepped part, and the upper cavity is provided with a strip hole located above the stepped part, which is used to transmit radio frequency signals.

[0015] (2) This utility model sets up a micro rectangular electrical connector and a high-frequency radio frequency coaxial connector and connects them to the component under test. For example, the micro rectangular electrical connector supplies power to the chip and the high-frequency radio frequency coaxial connector receives radio frequency signals.

[0016] In summary, this utility model has the advantages of simple structure and reliable testing, and has high practical and promotional value in the field of waveguide testing technology. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope of protection. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the structure of this utility model.

[0019] Figure 2 This is a schematic diagram of the blasting process of this utility model.

[0020] Figure 3 This is a schematic diagram of the structure of this utility model after removing the PCB board and the component under test.

[0021] Figure 4 This is a schematic diagram of the upper cavity in this utility model.

[0022] Figure 5 This is a schematic diagram of the lower cavity of this utility model.

[0023] Figure 6 This is a partially enlarged schematic diagram of the lower cavity in this utility model.

[0024] Figure 7 This is a simulation test curve of this utility model.

[0025] In the above figures, the component names corresponding to the reference numerals are as follows:

[0026] 1. Lower mounting base plate; 2. Lower cavity; 3. Upper cavity; 4. PCB board; 5. Component under test; 6. Micro rectangular electrical connector; 7. Adapter block; 8. High-frequency RF coaxial connector; 21. Micro rectangular electrical connector mounting slot; 22. Strip blind hole; 23. U-shaped groove; 24. Stepped section; 31. Rectangular groove; 32. Connecting hole; 33. Strip hole. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of this application clearer, the present invention will be further described below with reference to the accompanying drawings and embodiments. The embodiments of this utility model include, but are not limited to, the following embodiments. All other embodiments obtained by those skilled in the art based on the embodiments in this application without inventive effort are within the scope of protection of this application.

[0028] Example

[0029] In this embodiment, the term "and / or" is merely a description of the relationship between related objects, indicating that there can be three relationships. For example, A and / or B can represent three situations: A exists alone, A and B exist simultaneously, and B exists alone.

[0030] The terms "first" and "second," etc., used in the specification and claims of this embodiment are used to distinguish different objects, not to describe a specific order of objects. For example, "first target object" and "second target object," etc., are used to distinguish different target objects, not to describe a specific order of target objects.

[0031] In the embodiments of this application, the terms "exemplary" or "for example" are used to indicate that something is an example, illustration, or description. Any embodiment or design that is described as "exemplary" or "for example" in the embodiments of this application should not be construed as being more preferred or advantageous than other embodiments or design. Specifically, the use of the terms "exemplary" or "for example" is intended to present the relevant concepts in a specific manner.

[0032] In the description of the embodiments in this application, unless otherwise stated, "multiple" means two or more. For example, multiple processing units means two or more processing units; multiple systems means two or more systems.

[0033] like Figures 1 to 7As shown, this embodiment provides a waveguide test fixture for clamping and testing the device under test (DUT) 5. Specifically, the waveguide test fixture includes a lower mounting base plate 1, a lower cavity 2, an upper cavity 3, and a PCB board 4 arranged sequentially from bottom to top on the lower mounting base plate 1, a micro-rectangular electrical connector 6 fixed on the lower cavity 2 and passing through the upper cavity 3, an adapter block 7 fixed on the lower cavity 2, and a high-frequency radio frequency (RF) coaxial connector 8 fixed on the adapter block 7 and electrically connected to the PCB board 4. Here, the micro-rectangular electrical connector 6 and the RF coaxial connector 8 are electrically connected to the DUT 5. In this embodiment, the micro-rectangular electrical connector is connected to an external power supply, and the RF coaxial connector is connected to an external vector network analyzer. In addition, the lower cavity 2 and the upper cavity 3 are used to transmit high-frequency signals. The DUT leads the high-frequency signals and current to the RF coaxial connector and the micro-rectangular electrical connector respectively through the PCB board 4, and then from there to the external instruments.

[0034] In this embodiment, a micro-rectangular electrical connector mounting slot 21 is provided on the lower cavity 2, and the micro-rectangular electrical connector 6 is fixed in the micro-rectangular electrical connector mounting slot 21. Additionally, a linear blind hole 22 is provided on the lower cavity 2, and a U-shaped groove 23 is provided on the lower cavity 2 around the perimeter of the linear blind hole 22. Several stepped portions 24 are provided within the linear blind hole 22. The stepped portions 24 have five steps. Furthermore, a linear hole 33 is provided on the upper cavity 3, and this linear hole 33 is located at the top of the stepped portions 24.

[0035] In this embodiment, a rectangular slot 31 is formed in the upper cavity 3, and a micro rectangular electrical connector 6 is disposed through the rectangular slot 31. In addition, several connection holes 32 are provided in the upper cavity 3.

[0036] The above embodiments are merely preferred embodiments of this utility model and are not intended to limit the scope of protection of this utility model. Any changes made based on the design principles of this utility model, or any non-creative changes made on this basis, shall fall within the scope of protection of this utility model.

Claims

1. A waveguide test fixture for clamping and testing the component under test (5), characterized in that, The device includes a lower mounting base plate (1), a lower cavity (2), an upper cavity (3), and a PCB board (4) fixed on the lower mounting base plate (1) and arranged sequentially from bottom to top, a micro rectangular electrical connector (6) fixed on the lower cavity (2) and passing through the upper cavity (3), an adapter block (7) fixed on the lower cavity (2), and a high-frequency radio frequency coaxial connector (8) fixed on the adapter block (7) and electrically connected to the PCB board (4); the micro rectangular electrical connector (6) and the high-frequency radio frequency coaxial connector (8) are electrically connected to the device under test (5); the micro rectangular electrical connector (6) is connected to the PCB board (4).

2. The waveguide test fixture according to claim 1, characterized in that, A strip-shaped blind hole (22) is provided on the lower cavity (2); a U-shaped groove (23) is provided on the lower cavity (2) and around the perimeter of the strip-shaped blind hole (22); several stepped sections (24) are provided inside the strip-shaped blind hole (22).

3. A waveguide test fixture according to claim 2, characterized in that, The stepped section (24) has five steps.

4. A waveguide test fixture according to claim 1, 2, or 3, characterized in that, A micro-rectangular electrical connector mounting slot (21) is provided on the lower cavity (2); the micro-rectangular electrical connector (6) is fixed in the micro-rectangular electrical connector mounting slot (21).

5. A waveguide test fixture according to claim 2, characterized in that, The upper cavity (3) is provided with a strip-shaped hole (33); the strip-shaped hole (33) is located at the top of the stepped part (24).

6. A waveguide test fixture according to claim 1, characterized in that, A rectangular groove (31) is provided on the upper cavity (3); the micro rectangular electrical connector (6) is provided through the rectangular groove (31).

7. A waveguide test fixture according to claim 1, characterized in that, The upper cavity (3) is provided with several connection holes (32).

8. A waveguide test fixture according to claim 1, characterized in that, The upper cavity (3) is provided with a PCB board mounting slot; the PCB board (4) is placed in the PCB board mounting slot.

Images