High-precision waveguide antenna calibration device

Abstract

The utility model discloses a high-precision waveguide antenna calibration device which comprises an analyzer and a connecting element which are used in cooperation with each other. One side of the analyzer is connected with a containing bin in a sliding manner, and the containing bin is used for containing a connecting element; the connecting element comprises a plurality of waveguide wires matched with the analyzer, a plurality of calibration pieces matched with the waveguide wires, and an auxiliary connecting piece; the two ends of the waveguide wire are fixedly connected with a first connector corresponding to a wiring port of the analyzer and a second connector corresponding to the calibration piece respectively, and the calibration piece always tends to get close to the second connector through the auxiliary connecting piece. According to the utility model, the analyzer and the connecting element are placed together through the design of the accommodating bin, the probability that the connecting element is lost is reduced, meanwhile, the connecting element is also internally provided with the auxiliary connecting piece, the tightness and firmness of the connection between the calibration piece and the waveguide antenna are reinforced, the calibration accuracy of the analyzer through the calibration piece is ensured, and the calibration accuracy is improved. Therefore, the accuracy of antenna test calibration is ensured.

Description

Technical Field

[0001] This utility model relates to the field of antenna testing equipment technology, and in particular to a high-precision waveguide antenna calibration device. Background Technology

[0002] Antennas require calibration devices during both design and testing. A commonly used calibration device is a vector network analyzer, which is an instrument used to measure and analyze the transmission and reflection characteristics of electrical signals in the radio frequency and microwave frequency ranges. Therefore, it is often used for antenna calibration testing.

[0003] Chinese Patent CN101533048A discloses a configuration for calibrating a vector network analyzer. One of its features is a calibration component used with the analyzer. These calibration components, waveguide wires, and other components are typically stored separately from the analyzer. This separation makes it easy to lose components or confuse components that match the corresponding instrument number. Furthermore, the connection between the calibration components and the wires usually involves a threaded connection and mutual twisting, which, while ensuring a tight connection, makes replacement and disassembly cumbersome. Therefore, a new solution is needed to address these problems. Summary of the Invention

[0004] This invention overcomes the shortcomings of the prior art and provides a high-precision waveguide antenna calibration device.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a high-precision waveguide antenna calibration device, comprising an analyzer and connecting elements used in conjunction with each other;

[0006] The analyzer has a slidable storage compartment on one side, which is used to store connecting elements.

[0007] The connecting element includes: a plurality of waveguide wires for connecting the antenna to the analyzer, a plurality of calibration components that match the connection points of the waveguide wires, and auxiliary connecting components for assisting in connecting the calibration components to the waveguide antenna.

[0008] The two ends of the waveguide are respectively fixedly connected to a first connector corresponding to the analyzer's wiring port and a second connector corresponding to the calibration component. The auxiliary connector ensures that the calibration component always tends to move closer to the second connector.

[0009] In a preferred embodiment of this utility model, a sliding rail is fixedly connected to one side of the analyzer, and a sliding bar matching the sliding rail is fixedly connected to the side of the storage compartment facing the analyzer.

[0010] In a preferred embodiment of this utility model, a plurality of storage cabinets are slidably connected inside the storage compartment. Cabinet guide rails are fixedly connected to the storage compartments located on both sides of the storage cabinets. The storage cabinets are slidably connected to the storage compartments through the cooperation of rollers rotatably connected to both sides and the cabinet guide rails.

[0011] In a preferred embodiment of this utility model, a foam board is also provided inside the storage cabinet, and the foam board has several placement slots that match the shape of the connecting elements.

[0012] In a preferred embodiment of this invention, the outer surface of the storage compartment is coated with a graphene thermally conductive coating.

[0013] In a preferred embodiment of the present invention, the auxiliary connector includes: a first elastic clamping ring that engages with the second connector, an elastic strip that is rotatably connected to the first elastic clamping ring, and a second elastic clamping ring that is rotatably connected to the end of the elastic strip away from the first elastic clamping ring.

[0014] In a preferred embodiment of this utility model, the inner ring surfaces of both the first elastic clamping ring and the second elastic clamping ring are provided with insulating strips.

[0015] In a preferred embodiment of this utility model, the insulating tape is bonded to the first elastic clamping ring and the second elastic clamping ring, and the insulating tape is made of insulating rubber.

[0016] In a preferred embodiment of this utility model, the calibration component includes a short-circuit calibration component, an open-circuit calibration component, and a load calibration component.

[0017] In a preferred embodiment of this utility model, the storage compartment is made of aluminum alloy.

[0018] This utility model solves the defects existing in the background technology, and has the following beneficial effects:

[0019] (1) This utility model provides a storage compartment on one side of the analyzer to store the connecting components that are compatible with the analyzer, thus avoiding the loss of the connecting components. At the same time, the outer surface of the storage compartment is coated with a graphene thermal conductive coating, which conducts the heat generated when the analyzer is running to the outside through the graphene thermal conductive coating, thereby improving the heat dissipation effect of the analyzer and ensuring the stability of the analyzer's operation, so as to ensure the accuracy of antenna testing and calibration.

[0020] (2) The present invention also provides a connector for connecting the auxiliary calibration component and the waveguide wire. The elastic strip inside the connector provides a force to bring the calibration component closer to the waveguide antenna, which strengthens the tightness of the connection between the waveguide wire and the calibration component and avoids the looseness caused by the connection between the two from affecting the accuracy of the analyzer's antenna measurement and calibration. Attached Figure Description

[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0022] Figure 1 This is a perspective structural diagram of a preferred embodiment of the present invention;

[0023] Figure 2 This is an exploded view of a preferred embodiment of the present invention;

[0024] Figure 3 This is an exploded view of the connecting element in this utility model;

[0025] In the diagram: 1. Analyzer; 11. Sliding rail; 2. Storage compartment; 21. Sliding bar; 22. Cabinet guide rail; 3. Storage cabinet; 31. Roller; 4. Connecting element; 41. Waveguide wire; 411. First connector; 412. Second connector; 42. Calibration component; 43. Auxiliary connector; 431. First elastic clamping ring; 432. Second elastic clamping ring; 433. Elastic bar. Detailed Implementation

[0026] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. These drawings are simplified schematic diagrams, which are only used to illustrate the basic structure of the present invention in a schematic manner, and therefore only show the components related to the present invention.

[0027] Example

[0028] like Figure 1 , Figure 2 and Figure 3 As shown, a high-precision waveguide antenna calibration device includes an analyzer 1 and a connecting element 4 used in conjunction with each other. Specifically, a storage compartment 2 made of aluminum alloy is slidably connected to one side of the analyzer 1, and the storage compartment 2 is used to store the connecting element 4. The connecting element 4 includes: a plurality of waveguide wires 41 that are matched with the analyzer 1 for connecting the antenna, a plurality of calibration components 42 that are matched with the connection points of the waveguide wires 41, and an auxiliary connecting component 43 for assisting in connecting the calibration components 42 and the waveguide antenna. Specifically, the calibration components 42 include short-circuit calibration components, open-circuit calibration components, and load calibration components to adapt to calibration conditions under different circumstances. Further, the two ends of the waveguide wires 41 are respectively fixedly connected to a first connector 411 corresponding to the wiring port of the analyzer 1 and a second connector 412 corresponding to the calibration component 42. The auxiliary connecting component 43 ensures that the calibration component 42 always tends to move closer to the second connector 412.

[0029] Based on the above setup, by setting up a storage compartment 2 that matches the analyzer 1, and storing the calibration component 42 and waveguide antenna 41 that match the analyzer 1 together in the storage compartment 2, the analyzer 1 and its matching components are stored together, avoiding the loss of components due to separate storage. In addition, an auxiliary connector 43 is also provided in the connecting component 4. By setting up the auxiliary connector 43, based on the force of a second connector 412 of the calibration component 42 close to the waveguide antenna 41, the tightness of the connection between the calibration component 42 and the waveguide antenna is ensured, avoiding the impact on the accuracy of the analyzer 1's antenna measurement due to loosening of the connection between the calibration component 42 and the waveguide antenna 41, thus providing data with errors for calibration.

[0030] Furthermore, a sliding rail 11 is fixedly connected to one side of the analyzer 1, and a sliding bar 21 matching the sliding rail 11 is fixedly connected to the side of the storage compartment 2 facing the analyzer 1. Through the cooperation between the sliding bar 21 and the sliding rail 11, a stable connection between the storage compartment 2 and the analyzer 1 is achieved, and the storage compartment 2 can be detached and slid out from one side of the analyzer 1.

[0031] Furthermore, several storage cabinets 3 are slidably connected inside the storage compartment 2. Each storage cabinet 3 contains a foam board with several placement slots matching the shape of the connecting element 4 for safe storage. Cabinet guide rails 22 are fixedly connected to the storage compartments 2 on both sides of the storage cabinets 3. The storage cabinets 3 are slidably connected to the storage compartments 2 via the cooperation of rollers 31 connected to both sides and the cabinet guide rails 22. The cooperation between the cabinet guide rails 22 and the rollers 31 allows the storage cabinets 3 to slide out from one side of the storage compartment 2, facilitating the placement and removal of the connecting element 4. In addition, the outer surface of the storage compartment 2 is coated with a graphene thermal conductive coating. During the operation of the analyzer 1, heat is continuously generated. The graphene thermal conductive coating allows the heat generated inside the analyzer 1 to dissipate along the surface of the storage compartment 2 to the outside, thereby enhancing the heat dissipation performance of the analyzer 1.

[0032] Furthermore, the auxiliary connector 43 includes: a first elastic clamping ring 431 that fits into the second connector 412, an elastic strip 433 that is rotatably connected to the first elastic clamping ring 431, and a second elastic clamping ring 432 that is rotatably connected to the end of the elastic strip 433 away from the first elastic clamping ring 431. Specifically, there are two elastic strips 433, which are symmetrically arranged at both ends of the first elastic clamping ring 431. The elastic strip 433 is configured as a spring coil. The inner ring surfaces of the first elastic clamping ring 431 and the second elastic clamping ring 432 are provided with insulating tape. The insulating tape is bonded to the first elastic clamping ring 431 and the second elastic clamping ring 432. The insulating tape is made of insulating rubber. The first elastic clamping ring 431 and the second elastic clamping ring 432 are both made of elastic steel. The outer layer of the auxiliary connector 43 is coated with a ceramic insulating coating to reduce the impact on the connecting element 4.

[0033] With the above settings, the insulating rubber avoids interference from the auxiliary connector 43 to the calibration component 42 and the first connector 411 and second connector 412 of the waveguide antenna, while strengthening the connection between the auxiliary connector 43, the calibration component 42, and the waveguide wire 41.

[0034] During use, this invention uses an auxiliary connector 43 to connect the calibration component 42 and the waveguide wire 41. The elasticity of the elastic strip 433 reinforces the connection between the calibration component 42 and the second connector 412, ensuring the tightness and stability of the connection and guaranteeing the accuracy of the calibration of the analyzer 1, thereby ensuring the accuracy of the antenna test calibration. After calibration, the connecting element 4 can be placed in the storage cabinet 3. The cooperation of the rollers 31 and the cabinet guide rail 22 allows the storage cabinet 3 to be moved away from or near the storage compartment 2, facilitating the removal and placement of the connecting element 4. The graphene thermally conductive coating on the outer surface of the storage compartment 2 can fully transfer the heat generated by the analyzer 1 during operation to the outside, ensuring the stable operation of the analyzer 1 during calibration and testing. The design of the storage compartment 2 allows the matching connecting element 4 to be placed together with the analyzer 1, avoiding the loss of components. The auxiliary connector 43 strengthens the connection between the connecting elements 4, further ensuring the accuracy of the antenna test calibration performed by the analyzer 1.

[0035] Based on the preferred embodiments of this utility model described above, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A high precision waveguide antenna calibration device, characterized by: The analyzer (1) and the connecting element (4) are used in cooperation. A receiving bin (2) is slidably connected to one side of the analyzer (1), and is used for receiving the connecting element (4). The connecting element (4) comprises a plurality of waveguide wires (41) matched with the analyzer (1) and used for connecting an antenna, a plurality of calibration elements (42) matched with the waveguide wires (41), and an auxiliary connecting element (43) used for assisting in connecting the calibration elements (42) and the waveguide antenna. The two ends of the waveguide wires (41) are respectively fixedly connected with a first connecting head (411) corresponding to a connecting port of the analyzer (1) and a second connecting head (412) corresponding to the calibration element (42), and the calibration element (42) always has a tendency to approach the second connecting head (412) through the auxiliary connecting element (43).

2. The high-precision waveguide antenna calibration device of claim 1, wherein: A sliding rail (11) is fixedly connected to one side of the analyzer (1), and a sliding bar (21) matched with the sliding rail (11) is fixedly connected to one side of the receiving bin (2) facing the analyzer (1).

3. The high-precision waveguide antenna calibration device of claim 1, wherein: A plurality of receiving cabinets (3) are slidably connected in the receiving bin (2), cabinet guide rails (22) are fixedly connected to the receiving bin (2) on both sides of the receiving cabinets (3), and the receiving cabinets (3) are slidably connected with the receiving bin (2) through the cooperation of the rotatingly connected rollers (31) on both sides and the cabinet guide rails (22).

4. The high-precision waveguide antenna calibration device of claim 3, wherein: A foam plate is further arranged in the receiving cabinet (3), and a plurality of placing grooves matched with the shape of the connecting element (4) are formed in the foam plate.

5. The high precision waveguide antenna calibration device of claim 1, wherein: The outer surface of the receiving bin (2) is coated with a graphene heat-conducting coating.

6. The high precision waveguide antenna calibration device of claim 1, wherein: The auxiliary connecting element (43) comprises a first elastic clamping ring (431) embedded with the second connecting head (412), an elastic strip (433) rotatably connected with the first elastic clamping ring (431), and a second elastic clamping ring (432) rotatably connected at the end of the elastic strip (433) away from the first elastic clamping ring (431).

7. A high precision waveguide antenna calibration device according to claim 6, characterized in that: Insulating bands are arranged on the inner ring surfaces of the first elastic clamping ring (431) and the second elastic clamping ring (432).

8. The high precision waveguide antenna calibration device of claim 7, wherein: The insulating bands are bonded with the first elastic clamping ring (431) and the second elastic clamping ring (432), and are made of insulating rubber.

9. The high precision waveguide antenna calibration device of claim 1, wherein: The calibration elements (42) comprise short-circuit calibration elements, open-circuit calibration elements, and load calibration elements.

10. The high precision waveguide antenna calibration device of claim 1, wherein: The receiving bin (2) is made of aluminum alloy.

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