A wide-range adjustable gyrotron traveling wave tube superconducting magnet magnetic position type device

Abstract

This invention relates to the field of vacuum electronics technology, specifically to a wide-range adjustable magnetic positioning device for a superconducting magnet used in a gyroscopic traveling wave tube. The device includes a superconducting magnet and two coaxially arranged left and right compensation coils connected to the left and right end faces of the superconducting magnet. A temperature-controlled hole is formed through the middle of the superconducting magnet, into which the gyroscopic traveling wave tube is inserted. Both ends of the superconducting magnet have a first groove and a second groove for positioning and securing the left and right compensation coils. This invention increases the movable axial distance between the compensation coils and the superconducting magnet while maintaining a constant compensation coil current, thereby effectively improving the range and accuracy of the magnetic positioning device, allowing the gyroscopic traveling wave tube to operate at its optimal performance. It features convenient use, simple operation, high sensitivity, high accuracy, a wide range of magnetic positioning variations, and rich combinations of magnetic positioning methods.

Description

Technical Field

[0001] This invention relates to the field of vacuum electronics technology, and more specifically to a wide-range adjustable gyroscopic traveling wave tube superconducting magnet magnetic positioning device. Background Technology

[0002] Gyrotron traveling-wave tubes (GWTs) have become one of the most important high-power microwave sources in the field of vacuum electronics, especially in the millimeter-wave band. Their working principle involves generating and amplifying microwaves through the interaction of an electron beam with a high-frequency microwave field. They feature high frequency, high peak power, high average power, high gain, high efficiency, and wide bandwidth, and are widely used in scientific research, industrial, military, and civilian microwave electronic systems, including space situational awareness, lunar situational awareness, millimeter-wave satellite imaging radar, satellite cataloging, precision weather forecasting, precision guidance, communications, electronic countermeasures, particle accelerators, microwave remote sensing, thermonuclear fusion, and microwave energy applications.

[0003] The magnetic configuration distribution of a superconducting magnet directly affects the output power, bandwidth, gain, stability, and reliability of a gyrotron traveling wave tube (TWT), especially the magnetic field distribution in the electron gun and collector regions, which plays a decisive role in the TWT's performance indicators. Traditional superconducting magnets have planar end faces, and due to structural limitations, it is difficult to achieve a wide range of magnetic configuration distributions using compensation coils. To achieve a wide range of adjustable magnetic configurations, besides increasing the compensation coil current, the current cannot be too large, otherwise the coil will burn out. Therefore, a better magnetic configuration compensation effect can only be achieved by increasing the axial distance that the compensation coil can move.

[0004] Therefore, how to provide a way to increase the axial distance that the compensation coil can move, and achieve a wider range and more diverse magnetic configurations, is a problem that urgently needs to be solved by those skilled in the art. Summary of the Invention

[0005] Therefore, the purpose of this invention is to propose a wide-range adjustable gyroscopic traveling wave tube superconducting magnet magnetic positioning device to solve the structural defects of existing conventional superconducting magnets.

[0006] The technical solution of the present invention is a wide-range adjustable gyroscopic traveling wave tube superconducting magnet magnetic positioning device, comprising: a superconducting magnet and a left compensation coil and a right compensation coil connected to the left end face and the right end face of the superconducting magnet and arranged coaxially, a temperature hole is formed through the middle of the superconducting magnet, the gyroscopic traveling wave tube is inserted into the temperature hole, and both ends of the superconducting magnet have a first groove and a second groove for positioning and fastening the left compensation coil and the right compensation coil.

[0007] According to the technical solution of the present invention, the bottom of both the first groove and the second groove are provided with a plurality of connecting holes.

[0008] According to the technical solution of the present invention, the connecting hole is a threaded hole, and both the left compensation coil and the right compensation coil are connected to the threaded hole by long screws and fastening nuts.

[0009] According to the technical solution of the present invention, the left compensation coil is a hollow cylindrical structure with two flanges of the same size at both ends. Each flange has a positioning hole axially penetrating it, corresponding to the number of the connecting holes. A metal coil for generating a compensating axial magnetic field is tightly fitted between the two flanges.

[0010] According to the technical solution of the present invention, the right compensation coil is a hollow cylindrical structure with two flanges of the same size at both ends. Each flange has a positioning hole axially penetrating it, corresponding to the number of the connecting holes. A metal coil that generates a compensating axial magnetic field is tightly fitted between the two flanges.

[0011] According to the technical solution of the present invention, the left compensation coil 5 is coaxial with the left end of the superconducting magnet 1, wherein the outer diameter of the first groove D3 ≥ the outer diameter of the flange D9 > the pitch circle diameter of the positioning hole D8 > the outer diameter of the left compensation coil D7 > the inner diameter of the left compensation coil D6 ≥ the inner diameter of the first groove D4 ≥ the diameter of the temperature hole D5.

[0012] According to the technical solution of the present invention, the right compensation coil 6 is coaxial with the right end of the superconducting magnet 1, wherein the outer diameter D1 of the second groove on the right side is greater than the outer diameter D13 of the second flange, the pitch circle diameter D12 of the second positioning hole, the outer diameter D11 of the right compensation coil, the inner diameter D10 of the right compensation coil, the inner diameter D2 of the second groove on the right side, and the diameter D5 of the temperature hole.

[0013] According to the technical solution of the present invention, there are multiple metal coils one and two.

[0014] As can be seen from the above technical solution, compared with the prior art, the present invention has the following beneficial effects:

[0015] By increasing the movable axial distance between the compensation coil and the superconducting magnet while keeping the compensation coil current constant, the range and accuracy of the compensation magnetic configuration of the device are effectively improved, enabling the gyrotron traveling wave tube to operate at its optimal performance. It features ease of use, simple operation, high sensitivity, high accuracy, a wide range of magnetic configuration variations, and a rich variety of magnetic configuration combinations.

[0016] The position and fastening method of the compensation coils are crucial to the effectiveness of magnetic field adjustment. By designing the ends of the superconducting magnets with first and second grooves, the left and right compensation coils can be effectively positioned and fastened. This structure allows for a certain amount of axial adjustment space for the compensation coils, enabling them to be positioned according to actual needs and optimize the magnetic field distribution. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0018] Figure 1 This is a cross-sectional view of the wide-range adjustable cyclotron traveling wave tube magnetic positioning device according to an embodiment of the present invention;

[0019] Figure 2 This is a magnetic configuration distribution diagram of the superconducting magnet of the present invention;

[0020] Figure 3 This is a cross-sectional view of a superconducting magnet;

[0021] Figure 4 This is a cross-sectional view of the left compensation coil;

[0022] Figure 5 This is a cross-sectional view of the right compensation coil;

[0023] In the diagram, 1 is the superconducting magnet, 2 is the temperature hole, 3 is the left end face, 4 is the right end face, 5 is the left compensation coil, 6 is the right compensation coil, 7 is the connecting hole, 8 is the first positioning hole, and 9 is the second positioning hole. Detailed Implementation

[0024] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0025] Because traditional superconducting magnets have planar end faces, their structural limitations make it difficult to achieve a wide range of magnetic configuration distributions using compensation coils. This invention addresses the shortcomings of existing superconducting magnet structures where the upper and lower end faces of the Dewar fin are planar. It employs a wide-range adjustable magnetic configuration device for gyroscopic traveling wave tube (GWT) superconducting magnets. The key feature is that the upper and lower end faces of the superconducting magnet Dewar fin are made concave. By increasing the axial movement distance of the compensation coil, a wider range of adjustable magnetic configuration distributions for the gyroscopic GWT superconducting magnet is provided. This allows for finding a more precise operating point for stable operation of the gyroscopic GWT, ensuring stable and reliable operation within its optimal performance parameters. This invention can be used to adjust the magnetic configuration for a more suitable match during DC and high-frequency aging of the gyroscopic GWT. The device is characterized by its ease of use, simple operation, high sensitivity, wide range of magnetic configuration variations, high precision, and rich combinations of magnetic configurations.

[0026] Specifically, see Appendix Figure 1 The superconducting magnet 1 includes a superconducting magnet 1 and a left compensation coil 5 and a right compensation coil 6 connected to the left end face 3 and the right end face 4 of the superconducting magnet 1 and arranged coaxially. A temperature hole 2 is formed through the middle of the superconducting magnet 1, and a gyroscopic traveling wave tube is inserted into the temperature hole 2. Both ends of the superconducting magnet 1 have a first groove and a second groove for positioning and fastening the left compensation coil 5 and the right compensation coil 6.

[0027] The inner diameters of the first and second grooves of the superconducting magnet 1 are D2 and D4, respectively, the outer diameters are D1 and D3, respectively, and the depths are H2 and H1, respectively.

[0028] The wide-range adjustable gyro traveling wave tube superconducting magnet magnetic positioning device of the present invention has a simple structure and is easy to manufacture. It can be widely used in various electronic gyro pulse plug devices, including gyro traveling wave tubes, gyro backward wave tubes, gyro oscillating tubes, gyro klystrons and gyro traveling wave klystrons.

[0029] In this invention, the dimensions of the left compensation coil 5 and the right compensation coil 6 are not necessarily the same. The design is based on engineering requirements.

[0030] In the description of this invention, it should be understood that the terms "left", "right", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0031] Advantageously, both the first groove and the second groove have multiple connecting holes 7 formed inward at their bottoms.

[0032] In an embodiment of the present invention, the connecting hole 7 is a threaded hole, and both the left compensation coil 5 and the right compensation coil 6 are connected to the threaded hole by long screws and fastening nuts.

[0033] See appendix Figure 3 and 4 The left compensation coil 5 is a hollow cylindrical structure with two flanges of identical dimensions at its two ends. Each flange has a number of positioning holes 8 axially penetrating it, corresponding to the number of connecting holes 7. A metal coil 8 that generates a compensating axial magnetic field is tightly fitted between the two flanges. The left compensation coil 5 is coaxial with the left end of the superconducting magnet 1, wherein the outer diameter of the first groove D3 ≥ the outer diameter of the flange D9 > the pitch circle diameter of the positioning hole D8 > the outer diameter of the left compensation coil D7 > the inner diameter of the left compensation coil D6 ≥ the inner diameter of the first groove D4 ≥ the diameter of the temperature hole D5.

[0034] See appendix Figure 3 and 5 The right compensation coil 6 is a hollow cylindrical structure with two flanges of identical dimensions at its two ends. Each flange has a number of positioning holes 9 axially penetrating it, corresponding to the number of connecting holes 7. A metal coil 2 that generates a compensating axial magnetic field is tightly fitted between the two flanges. The right compensation coil 6 is coaxial with the right end of the superconducting magnet 1, wherein the outer diameter D1 of the second groove on the right side is greater than the outer diameter D13 of the flange 2, the pitch circle diameter D12 of the positioning hole 2, the outer diameter D11 of the right compensation coil, the inner diameter D10 of the right compensation coil, the inner diameter D2 of the second groove on the right side, and the diameter D5 of the temperature hole.

[0035] In the above embodiments, there are multiple metal coils, including the first metal coil and the second metal coil. The number is determined according to engineering requirements.

[0036] In this invention, axial movement is achieved by moving between a long screw and a fastening nut.

[0037] Furthermore, the terms "a" and "two" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "a" or "two" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0038] See appendix Figure 2The arrows corresponding to the left end face 3 and the right end face 4 indicate the movable axial positions. Compared to the planar structure of the left and right end faces of traditional superconducting magnets, this invention offers a wide range of adjustment. Because the superconducting magnet of this invention uses a groove structure at both ends, the compensation coil can be moved to the position of the inner vertical line. In contrast, the compensation coil of a traditional superconducting magnet with a planar end face can only be moved to the position of the outer vertical line. Therefore, the adjustment range of this invention is wider.

[0039] This invention optimizes the electron beam emission state during the DC and high-frequency aging process of the gyrotron traveling-wave tube by adjusting the axial distance between the left compensation coil 5, the right compensation coil 6, and the superconducting magnet, and then measuring the results with testing instruments. This optimization includes aspects such as velocity dispersion, lateral velocity ratio, output power waveform, DC high-frequency stability, and spectrum purity. Because the movable axial distance of the compensation coils is increased, the magnetic configuration can be optimized over a wider range, providing more combinations of magnetic configurations to choose from. This allows for the optimization of the optimal operating point, significantly improving the performance of the gyrotron traveling-wave tube. The device is characterized by its ease of use, simple operation, high sensitivity, wide range of magnetic configuration variations, high precision, and rich combinations of magnetic configurations.

[0040] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. In addition, those skilled in the art can combine and integrate the different embodiments or examples described in this specification.

[0041] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A wide-range adjustable gyroscopic traveling wave tube superconducting magnet magnetic positioning device, characterized in that, include: A superconducting magnet (1) and a left compensation coil (5) and a right compensation coil (6) connected to the left end face (3) and the right end face (4) of the superconducting magnet (1) and arranged coaxially. A temperature hole (2) is formed through the middle of the superconducting magnet (1). A gyratory traveling wave tube is inserted into the temperature hole (2). Both ends of the superconducting magnet (1) have a first groove and a second groove for positioning and fastening the left compensation coil (5) and the right compensation coil (6). The bottom of both the first groove and the second groove is provided with multiple connecting holes (7) facing inward; The connecting hole (7) is a threaded hole. The left compensation coil (5) and the right compensation coil (6) are both connected to the threaded hole by long screws and fastening nuts. The left compensation coil (5) is a hollow cylindrical structure with two flanges of the same size at both ends. Each flange has a positioning hole (8) axially penetrating it, which is the same number as the connecting hole (7). A metal coil that generates a compensating axial magnetic field is tightly fitted between the two flanges. The right compensation coil (6) is a hollow cylindrical structure with two flanges of the same size at both ends. Each flange has a number of positioning holes (9) that are axially connected to the number of connecting holes (7). A metal coil that generates a compensating axial magnetic field is tightly fitted between the two flanges.

2. The wide-range adjustable gyroscopic traveling wave tube superconducting magnet magnetic positioning device according to claim 1, characterized in that, The left compensation coil (5) is coaxial with the left end of the superconducting magnet (1), wherein the outer diameter of the first groove D3 ≥ the outer diameter of the flange D9 > the pitch circle diameter of the positioning hole D8 > the outer diameter of the left compensation coil D7 > the inner diameter of the left compensation coil D6 ≥ the inner diameter of the first groove D4 ≥ the diameter of the temperature hole D5.

3. The wide-range adjustable gyroscopic traveling wave tube superconducting magnet magnetic positioning device according to claim 1, characterized in that, The right compensation coil (6) is coaxial with the right end of the superconducting magnet (1), wherein the outer diameter D1 of the second groove on the right side is greater than the outer diameter D13 of the second flange, the pitch circle diameter D12 of the second positioning hole, the outer diameter D11 of the right compensation coil, the inner diameter D10 of the right compensation coil, the inner diameter D2 of the second groove on the right side, and the diameter D5 of the temperature hole.

4. The wide-range adjustable gyroscopic traveling wave tube superconducting magnet magnetic positioning device according to claim 1, characterized in that, There are multiple metal coils, including metal coil one and metal coil two.

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