Impedance adjusting elbow

Abstract

The utility model relates to the technical field of radio frequency transmission line accessories, in particular to an impedance adjusting elbow which comprises an outer conductor, an inner conductor and an insulation supporting piece, the inner conductor and the outer conductor are coaxially arranged, and the inner conductor is arranged in the outer conductor through the insulation supporting piece; each of the outer conductor and the inner conductor is provided with a bend with a preset angle, the bending part of the outer conductor and the inner conductor is provided with a bending tangent plane, the bending tangent plane of the outer conductor is provided with a metal adjusting piece, the metal adjusting piece can move in a reciprocating mode in the axis direction of the metal adjusting piece, and the metal adjusting piece penetrates through the outer conductor. The impedance adjusting circuit has the effect of adjusting impedance.

Description

Technical Field

[0001] The present application relates to the technical field of radio frequency transmission line accessories, and in particular to an impedance adjustment elbow. Background Art

[0002] In traditional RF transmission systems, feeder elbows mainly guide the transmission line and have relatively simple functions. However, with the rapid development of wireless communication technology, higher requirements are placed on the stability and efficiency of RF transmission. Most existing RF feeder elbow designs fail to effectively integrate impedance adjustment functions. These limitations make it difficult to achieve ideal impedance matching effects in practical applications, thus affecting the signal transmission quality and the overall performance of the system. In many application scenarios, the impedance of the elbow needs to be adjusted according to actual conditions to optimize the signal transmission quality. Utility Model Content

[0003] In order to adjust the impedance of the elbow, the present application provides an impedance-adjusting elbow.

[0004] An impedance-adjusting elbow provided in the present application adopts the following technical solution: an impedance-adjusting elbow, comprising an outer conductor, an inner conductor and an insulating support sheet, wherein the inner conductor is coaxially arranged with the outer conductor, and the inner conductor is arranged inside the outer conductor through the insulating support sheet; the outer conductor and the inner conductor are both provided with a bend at a predetermined angle, and the bends of the outer conductor and the inner conductor have a bending section, a metal adjusting part is provided at the bending section of the outer conductor, and the metal adjusting part can move back and forth along its own axial direction, and the metal adjusting part passes through the outer conductor.

[0005] By adopting the above technical solution, the depth of the metal adjusting piece is adjusted to form an adjustable capacitor with the bent section of the inner conductor, thereby achieving the effect of changing the impedance value of the elbow, thereby realizing the change of the output standing wave ratio of the transmitter.

[0006] Optionally, a nut and a through hole for the metal adjusting part to pass through are provided at the bent section of the outer conductor, the nut is coaxially arranged with the through hole, the metal adjusting part is provided with an external thread matching with the nut, and the hole wall of the through hole is provided with an internal thread matching with the external thread.

[0007] By adopting the above technical solution, the position of the metal adjusting part can be easily adjusted by using threaded fitting, thereby achieving precise control of the elbow impedance, and the metal adjusting part can be locked by the nut.

[0008] Optionally, a handle is provided at one end of the metal adjusting member away from the inner conductor.

[0009] By adopting the above technical solution, the handle provides a convenient adjustment means for the operator, making the impedance adjustment process easier to operate.

[0010] Optionally, the handle outer shell is provided with an insulating sleeve.

[0011] By adopting the above technical solutions, the safety of the operation process is significantly improved and potential risks are effectively prevented.

[0012] Optionally, the predetermined angle is any one of 45°, 60°, 90°, 120° and 135°.

[0013] By adopting the above technical solution, the elbow can flexibly adapt to various installation conditions and transmission requirements, thereby improving its versatility and practicality.

[0014] Optionally, a support hole is provided at the center of the insulating support sheet, the insulating support sheet is embedded in the outer conductor, and the inner conductor is embedded in the support hole.

[0015] By adopting the above technical solution, the supporting hole at the center of the insulating support sheet ensures the precise alignment of the inner conductor and the outer conductor, and also provides stable insulation isolation, thereby ensuring the stability of signal transmission.

[0016] Optionally, the insulating support sheet is provided with a plurality of heat dissipation holes, and the heat dissipation holes are arranged at equal intervals around the support hole.

[0017] By adopting the above technical solution, the heat dissipation efficiency of the elbow is effectively enhanced, which helps it maintain a stable working state under high load conditions.

[0018] Optionally, the outer surface of the outer conductor is sprayed with graphene heat dissipation paint.

[0019] By adopting the above technical solution and utilizing the excellent thermal conductivity of graphene materials, the heat dissipation capacity of the elbow is further enhanced and the service life of the equipment is extended.

[0020] In summary, the present application includes at least one of the following beneficial technical effects:

[0021] 1. By introducing an adjustable capacitor structure, the elbow impedance can be flexibly adjusted, which improves the adaptability and performance of the RF transmission system;

[0022] 2. By adding handles and insulating sleeves, the operating experience is optimized and the convenience and safety of operation are improved;

[0023] 3. By adopting heat dissipation measures such as heat dissipation holes and graphene heat dissipation paint, the thermal management capability of the elbow is effectively improved, ensuring its long-term stable working state. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 is a schematic diagram of the structure of the impedance adjustment elbow provided in an embodiment of the present application;

[0025] Figure 2 It is a schematic diagram of the internal structure of the impedance adjustment elbow provided in an embodiment of the present application.

[0026] Explanation of the reference numerals: 1 - outer conductor; 101 - through hole; 2 - inner conductor; 3 - insulating support plate; 301 - support hole; 302 - heat dissipation hole; 4 - metal adjustment piece; 5 - handle; 6 - nut. DETAILED DESCRIPTION

[0027] The following is combined with Figure 1-2 This application is described in further detail.

[0028] The embodiment of the present application discloses an impedance adjustment elbow.

[0029] like Figure 1 and Figure 2 As shown, the impedance adjustment elbow comprises an outer conductor 1, an inner conductor 2 and an insulating support sheet 3, the inner conductor 2 is coaxially arranged with the outer conductor 1, and the inner conductor 2 is arranged inside the outer conductor 1 through the insulating support sheet 3; the outer conductor 1 and the inner conductor 2 are both provided with a bend at a predetermined angle, which can be any one of 45°, 60°, 90°, 120° and 135°. In this embodiment, the angle is 90°. The bends of the outer conductor 1 and the inner conductor 2 have a bend section, and the bend section of the outer conductor 1 is provided with a metal adjustment member 4, and the metal adjustment member 4 can reciprocate along its own axis direction, and the metal adjustment member 4 penetrates the outer conductor 1. By adjusting the depth of the metal adjustment member 4, the metal adjustment member 4 and the bend section of the inner conductor 2 form an adjustable capacitor, so as to achieve the effect of changing the impedance value of the elbow, thereby realizing the change of the output standing wave ratio of the transmitter.

[0030] like Figure 1 and Figure 2 As shown, a support hole 301 is provided at the center of the insulating support sheet 3, and the insulating support sheet 3 is embedded in the outer conductor 1, and the inner conductor 2 is embedded in the support hole 301. The support hole 301 at the center of the insulating support sheet 3 ensures the precise alignment of the inner conductor 2 and the outer conductor 1, and also provides a stable insulation isolation, thereby ensuring the stability of signal transmission.

[0031] like Figure 1 and Figure 2As shown, specifically, a through hole 101 is opened at the bending section of the outer conductor 1 for the metal adjusting member 4 to pass through, and a nut 6 is installed at the through hole 101, and the nut 6 and the through hole 101 are coaxially arranged. The metal adjusting member 4 is provided with an external thread that matches the nut 6, and the hole wall of the through hole 101 is provided with an internal thread that matches the external thread. Under the action of the external thread of the metal adjusting member 4 and the internal thread of the through hole 101 being engaged, the metal adjusting member 4 is rotated to adjust its position so that it moves along its own axial direction to achieve the purpose of accurately regulating the impedance of the elbow. After reaching the target position, the nut 6 is tightened to lock the metal adjusting member 4. One end of the metal adjusting member 4 close to the bending part of the inner conductor 2 can be processed with a rounded corner to avoid the metal adjusting member 4 having a sharp tip, thereby avoiding breakdown short circuit.

[0032] In order to prevent the metal adjusting member 4 from penetrating too deep and causing it to contact the inner conductor 2 and cause a short circuit, an insulating support member can be set at one end of the metal adjusting member 4 close to the inner conductor 2 during actual use, or the length of the metal adjusting member 4 can be controlled so that it can penetrate the outer conductor 1 to the deepest depth without touching the inner conductor 2.

[0033] like Figure 1 and Figure 2 As shown, for the convenience of adjustment, a handle 5 is installed at one end of the metal adjustment member 4 away from the inner conductor 2. The handle 5 provides a convenient adjustment means for the operator, making the impedance adjustment process easier to operate. At the same time, in order to enhance the safety of operation, an insulating sleeve (not shown in the figure) is also installed on the handle 5, thereby effectively preventing the risk of electrostatic shock.

[0034] like Figure 1 and Figure 2 As shown, dry air is filled between the inner and outer conductors 1 of the present application. Dry air is a good insulator. At 1 standard atmospheric pressure, the theoretical breakdown voltage of dry air is 3×10E6V / m, which is conducive to the elbow to obtain a higher peak power capacity. But at the same time, dry air is a poor conductor of heat conduction. In order to enhance the heat dissipation effect of the elbow, after simulation determination, a plurality of heat dissipation holes 302 are opened on the insulating support sheet 3, and the heat dissipation holes 302 are arranged at equal intervals around the support hole 301. In this way, even under high-load working conditions, the elbow can maintain a good heat dissipation effect, thereby maintaining a stable working state.

[0035] In addition, a layer of graphene heat dissipation paint is sprayed on the outer surface of the outer conductor 1. Since graphene has excellent thermal conductivity, the heat dissipation performance of the elbow is further enhanced by the graphene heat dissipation paint, which helps to extend the service life of the elbow.

[0036] The implementation principle of an impedance-adjusting elbow in an embodiment of the present application is as follows: by twisting the handle 5 with the insulating sleeve, the metal adjusting part 4 can move along its own axial direction under the action of the meshing of the thread of the metal adjusting part 4 and the nut 6. By changing the depth of the metal adjusting part 4, that is, the size of the capacitance formed with the bent section of the inner conductor 2, the impedance value of the elbow is changed, thereby realizing the change of the output standing wave ratio of the transmitter.

[0037] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. An impedance adjustment elbow, characterized in that: include: An outer conductor (1), an inner conductor (2) and an insulating support sheet (3), wherein the inner conductor (2) and the outer conductor (1) are coaxially arranged, and the inner conductor (2) is arranged inside the outer conductor (1) through the insulating support sheet (3); The outer conductor (1) and the inner conductor (2) are both provided with a bend at a predetermined angle, and the bends of the outer conductor (1) and the inner conductor (2) have a bend section, and a metal adjustment piece (4) is provided at the bend section of the outer conductor (1), and the metal adjustment piece (4) can reciprocate along its own axial direction, and the metal adjustment piece (4) passes through the outer conductor (1).

2. The impedance adjustment elbow according to claim 1, characterized in that: A nut (6) and a through hole (101) for the metal adjusting member (4) to pass through are provided at the bent section of the outer conductor (1); the nut (6) and the through hole (101) are coaxially arranged; the metal adjusting member (4) is provided with an external thread matching the nut (6); and the hole wall of the through hole (101) is provided with an internal thread matching the external thread.

3. The impedance adjustment elbow according to claim 2, characterized in that: A handle (5) is provided at one end of the metal adjusting member (4) away from the inner conductor (2).

4. The impedance adjustment elbow according to claim 3, characterized in that: The handle (5) is provided with an insulating sleeve.

5. The impedance adjustment elbow according to claim 1, characterized in that: The predetermined angle is any one of 45°, 60°, 90°, 120° and 135°.

6. The impedance adjustment elbow according to claim 1, characterized in that: A support hole (301) is provided at the center of the insulating support sheet (3); the insulating support sheet (3) is embedded in the outer conductor (1); and the inner conductor (2) is embedded in the support hole (301).

7. The impedance adjustment elbow according to claim 6, characterized in that: The insulating support sheet (3) is provided with a plurality of heat dissipation holes (302), and the heat dissipation holes (302) are arranged at equal intervals around the support hole (301).

8. The impedance adjustment elbow according to claim 1, characterized in that: The outer surface of the outer conductor (1) is sprayed with graphene heat dissipation paint.

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