Millimeter wave precise calibration short-circuiter

Abstract

The utility model relates to a millimeter wave precise calibration short-circuiting device which comprises a short-circuiting device and a straight waveguide. The right side of the straight waveguide is connected with the spread spectrum device through a third flange surface, the left side of the straight waveguide is connected with the short-circuiting device through a second flange surface, and the right side of the short-circuiting device is provided with a first flange surface; first process positions are arranged on the outer sides of the first flange surface, the second flange surface and the third flange surface; the right side of the short-circuiting device is provided with a cylindrical second process position, and the second process position is connected with the second flange face after passing through the first flange face. According to the utility model, the short-circuiting device is provided with a process position which is convenient for assembling and disassembling the to-be-tested piece and the straight waveguide, so that the convenience of installation and the simplicity of processing are well ensured under the condition that the performance is not influenced.

Description

Technical Field

[0001] The utility model relates to the technical field related to millimeter wave waveguide calibration, and in particular to a millimeter wave precision calibration short circuiter. Background Art

[0002] Calibration kits, also known as network analyzer calibration kits or calibration kits, are primarily used for parameter calibration of wireless RF test equipment. They are widely used to measure the characteristics of RF microwave components, such as passive components like attenuators, filters, and power splitters, as well as active components like amplifiers and frequency multipliers. A common calibration method is SOLT calibration, which stands for short-circuit-short-load-through calibration. The short circuit is an integral part of the SOLT calibration kit.

[0003] A short circuit provides an ideal short-circuit condition for calibrating the reflection and transmission coefficients in a measurement system. By inserting a short circuit into a measurement system, the system's response characteristics under short-circuit conditions can be determined, allowing for the evaluation and correction of measurement errors. Short circuits can be used for reflection coefficient calibration, eliminating systematic errors and improving measurement accuracy. Short circuits play a vital role in ensuring accurate and reliable calibration of measurement systems using calibration components.

[0004] However, the size of the short-circuit device is generally small, which makes it inconvenient to install and remove it from the straight waveguide and the external device under test.

[0005] In view of the above-mentioned defects, the designers have actively carried out research and innovation in order to create a millimeter wave precision calibration short circuit device to make it more valuable for industrial use. Utility Model Content

[0006] In order to solve any of the above technical problems, the purpose of the present invention is to provide a millimeter wave precision calibration short circuiter.

[0007] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0008] A millimeter wave precision calibration short circuit device, comprising a short circuit device and a straight waveguide;

[0009] The right side of the straight waveguide is connected to the spectrum expander through the third flange surface, and the left side of the straight waveguide is connected to the short circuit device through the second flange surface. A first flange surface is provided on the right side of the short circuit device, and the first flange surface is located on the left side of the second flange surface.

[0010] A first process position is provided on the outer sides of the first flange surface, the second flange surface and the third flange surface;

[0011] A cylindrical second process position is provided on the right side of the short circuiter, and the second process position is connected to the second flange surface after passing through the first flange surface.

[0012] As a further improvement of the present utility model, a short-circuit breaker functional area is provided inside the second flange surface on the right side of the short-circuit breaker.

[0013] As a further improvement of the present utility model, a plurality of connection holes are evenly distributed along the circumferential direction on the first flange surface, the second flange surface and the third flange surface, and connecting pieces are installed in the connection holes.

[0014] As a further improvement of the present utility model, the connection holes are threaded holes and the connecting pieces are bolts.

[0015] As a further improvement of the present utility model, the connection holes are pin holes and the connecting pieces are pins.

[0016] As a further improvement of the present utility model, after the second process position passes through the first flange surface, mm is reserved for connection with the second flange surface.

[0017] As a further improvement of the present utility model, a delay sheet is installed between the first flange surface and the second flange surface.

[0018] As a further improvement of the present utility model, the delay sheet includes a working surface closely attached between the first flange surface and the second flange surface and a third process position protruding outside the first flange surface and the second flange surface.

[0019] As a further improvement of the present utility model, the spread spectrum device is an S-parameter spread spectrum device.

[0020] By means of the above solutions, the present utility model has at least the following advantages:

[0021] The short-circuit breakers of the present utility model all have process positions that facilitate the loading and unloading of the device under test and the straight waveguide, and ensure the convenience of installation and the simplicity of processing well without affecting the performance.

[0022] The above description is only an overview of the technical solution of the present utility model. In order to be able to understand the technical means of the present utility model more clearly and implement it according to the content of the description, the following takes the preferred embodiments of the present utility model and combines with the attached drawings to describe in detail as follows. Brief Description of the Drawings

[0023] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following will briefly introduce the drawings required to be used in the embodiments. It should be understood that the following drawings only show some embodiments of the present utility model, and therefore should not be regarded as limiting the scope. For those of ordinary skill in the art, without creative efforts, other related drawings can also be obtained based on these drawings.

[0024] Figure 1It is a schematic structural diagram of a millimeter-wave precision calibration short-circuit device of the present utility model;

[0025] Figure 2 is Figure 1 a schematic structural diagram of the first flange surface in

[0026] Among them, the meanings of the reference numerals in the drawings are as follows.

[0027] Short-circuit device 1, straight waveguide 2, frequency spreader 3, short-circuit device functional area 4, first process position 5, first flange surface 6, second flange surface 7, third flange surface 8, connection hole 9, connecting piece 10. Specific embodiments

[0028] The following will further describe in detail the specific embodiments of the present utility model in conjunction with the drawings and embodiments. The following embodiments are used to illustrate the present utility model, but are not used to limit the scope of the present utility model.

[0029] In order to enable those skilled in the art to better understand the solution of the present utility model, the technical solutions in the embodiments of the present utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Usually, the components of the embodiments of the present utility model described and shown in the drawings here can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present utility model provided in the drawings is not intended to limit the scope of the claimed present utility model, but only represents the selected embodiments of the present utility model. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative efforts fall within the scope of protection of the present utility model.

[0030] Embodiment

[0031] As Figures 1 to 2 shown,

[0032] A millimeter-wave precision calibration short-circuit device includes a short-circuit device 1, a straight waveguide 2 and a frequency spreader 3, and the frequency spreader 3 is an S-parameter frequency spreader.

[0033] The right side of the straight waveguide 2 is connected to the frequency spreader 3 through the third flange surface 8, the left side of the straight waveguide 2 is connected to the short-circuit device 1 through the second flange surface 7, a first flange surface 6 is provided on the right side of the short-circuit device 1, and the first flange surface 6 is located on the left side of the second flange surface 7. A short-circuit device functional area 4 is provided on the right side of the short-circuit device 1 inside the second flange surface 7.

[0034] A first process position 5 is provided on the outer sides of the first flange surface 6, the second flange surface 7, and the third flange surface 8. A cylindrical second process position is provided on the right side of the circuit breaker 1. After passing through the first flange surface 6, the second process position is connected to the second flange surface 7. After passing through the first flange surface 6, 10 mm is reserved for connection with the second flange surface 7.

[0035] A number of connection holes 9 are evenly distributed along the circumferential direction on the first flange surface 6, the second flange surface 7, and the third flange surface 8. A connecting member 10 is installed in the connection hole 9, and the locking of the device is achieved through the connecting member 10 and the connection hole 9.

[0036] 1. The connection hole 9 is a threaded hole, and the connecting member 10 is a bolt.

[0037] 2. The connection hole 9 is a pin hole, and the connecting member 10 is a pin.

[0038] A delay sheet is installed between the first flange surface 6 and the second flange surface 7. The delay sheet includes a working surface closely attached between the first flange surface 6 and the second flange surface 7 and a third process position protruding outside the first flange surface 6 and the second flange surface 7.

[0039] The working principle of the present utility model:

[0040] During use, a frequency spreader 3 is connected to one end of the straight waveguide 2, and the other end is connected to the circuit breaker 1 to form a short circuit of the entire four-port network. All connections are positioned by flange surface pins and fastened with screws for easy disassembly.

[0041] In addition, a delay sheet can also be provided, and there are standard connection holes on the circuit breaker and the delay sheet respectively. The delay sheet is designed in a water droplet shape, and the tail of the water droplet is convenient for disassembly. The whole is easy to process, beautiful and practical. During use, the connection is fastened by setting the connecting member 10 on the connection hole 9, thereby realizing the fixed connection between the circuit breaker and the delay sheet.

[0042] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first", "second", etc. may explicitly or implicitly include one or more of such features. In the description of the present utility model, unless otherwise specified, the meaning of "a plurality" is two or more.

[0043] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "installed", "connected", "coupled" shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be a direct connection or an indirect connection through an intermediate medium; it may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood through specific circumstances.

[0044] The above description is only a preferred embodiment of the present utility model and is not used to limit the present utility model. It should be pointed out that for those of ordinary skill in the art, without departing from the technical principle of the present utility model, several improvements and modifications can still be made, and these improvements and modifications should also be regarded as the protection scope of the present utility model.

Claims

1. A millimeter-wave precision calibration short-circuit device, comprising a short-circuit device (1) and a straight waveguide (2); It is characterized in that: The right side of the straight waveguide (2) is connected to a frequency spreader (3) through a third flange surface (8), the left side of the straight waveguide (2) is connected to the short-circuit device (1) through a second flange surface (7), a first flange surface (6) is arranged on the right side of the short-circuit device (1), and the first flange surface (6) is located on the left side of the second flange surface (7); First process positions (5) are arranged on the outer sides of the first flange surface (6), the second flange surface (7) and the third flange surface (8); A cylindrical second process position is arranged on the right side of the short-circuit device (1), and the second process position is connected to the second flange surface (7) after passing through the first flange surface (6).

2. The millimeter-wave precision calibration short circuit breaker according to claim 1, wherein A short-circuit device functional area (4) is arranged on the inner side of the second flange surface (7) on the right side of the short-circuit device (1).

3. The millimeter-wave precision calibration short-circuit device according to claim 1, characterized in that, A plurality of connection holes (9) are evenly distributed along the circumferential direction on the first flange surface (6), the second flange surface (7) and the third flange surface (8), and connectors (10) are installed in the connection holes (9).

4. The millimeter-wave precision calibration short-circuit device according to claim 3, characterized in that, The connection holes (9) are threaded holes, and the connectors (10) are bolts.

5. The millimeter-wave precision calibration short circuit breaker according to claim 3, characterized in that, The connection holes (9) are pin holes, and the connectors (10) are pins.

6. The millimeter-wave precision calibration short circuit breaker according to claim 1, characterized in that, 10 mm is reserved for connection with the second flange surface (7) after the second process position passes through the first flange surface (6).

7. A millimeter-wave precision calibration short-circuit device as described in claim 1, characterized in that, A delay sheet is installed between the first flange surface (6) and the second flange surface (7).

8. The millimeter-wave precision calibration short-circuit device according to claim 7, characterized in that, The delay sheet includes a working surface closely attached between the first flange surface (6) and the second flange surface (7) and a third process position protruding outside the first flange surface (6) and the second flange surface (7).

9. The millimeter-wave precision calibration short circuit breaker according to claim 1, wherein, The frequency spreader (3) is an S-parameter frequency spreader.

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