A Rotating High-Power Mechanical Phase Shifter Based on a Sector Waveguide

Abstract

The present application provides a rotating high-power mechanical phase shifter based on a sector waveguide, which includes a waveguide transmission module, a mechanical activity module, and a motor drive module. The waveguide transmission module includes a sector waveguide housing and a shape conversion housing. The interior of the sector waveguide housing is provided with a first sector groove, and first channels are opened on both sides. There is a first connecting plate on one side and a first choke on the other side. Two shape conversion housings are provided and are opened with second channels communicating with the first channels. The mechanical activity module includes a mechanical activity housing, a second choke, and a rotating shaft. The second choke is arranged on the rotating shaft, and the two complete a certain angle of rotation in the mechanical activity housing. The motor drive module includes structures such as a support body, a rotating motor, and a gear set, which are used to drive the rotating shaft and the second choke to rotate. The present application can perform real-time phase adjustment and has a high-power microwave electromagnetic protection effect, and at the same time can effectively improve the overall compactness of the device.

Description

Technical Field

[0001] This application relates to the field of high-power microwave technology. Specifically, it relates to a rotating high-power mechanical phase shifter based on a sector waveguide. Background Art

[0002] The content of this part only provides background information related to this application, which may not constitute the prior art.

[0003] A microwave phase shifter is a type of device used for microwave phase adjustment. Currently, it can be divided into semiconductor phase shifters, microelectromechanical phase shifters, ferrite phase shifters, and mechanical waveguide phase shifters according to their structures. A large number of microwave phase shifters working together can achieve spatial scanning of the beam, which is a key component of the current phased array radiation system. In the application scenarios of high-power microwaves, most types of phase shifters are difficult to meet the requirements of power capacity and are prone to failures, damages, etc. In contrast, the mechanical waveguide phase shifter, due to its characteristics such as being based on a waveguide structure and having no pin leads, can effectively avoid the damage caused by power concentration and has better power capacity and thermal stability. Therefore, it has gradually been widely used in high-power microwave systems.

[0004] Mechanical waveguide phase shifters can be divided into reciprocating structures and rotating structures according to their mechanical operation methods. Reciprocating waveguide phase shifters include wide-side adjustable phase shifters, bridge phase shifters, etc. Rotating phase shifters include circularly polarized waveguide phase shifters, cross-turnstile waveguide phase shifters, etc. Designing based on different-shaped waveguides can meet different requirements. However, the above-mentioned several mechanical waveguide phase shifters all have the following defects: The current phase shifters are large in volume, and the utilization rate of the space of complex waveguide branches is low; the phase shift speed is slow and it is difficult to achieve the purpose of real-time phase adjustment; there is a potential electromagnetic compatibility problem due to the lack of a choke protection structure, and the traditional choke structure does not have the conformal feature and is difficult to meet the actual application requirements. The above problems are not conducive to the multi-body cascading and real-time beam scanning of the phase shifter, and seriously restrict the further development of high-power mechanical phase shifters and high-power phased array systems. Summary of the Invention

[0005] In order to solve the above technical problems, the purpose of this application is to provide a rotating high-power mechanical phase shifter based on a sector waveguide, which realizes the miniaturization of a high-power phased array system, can perform real-time beam scanning, and has the effect of electromagnetic protection.

[0006] The purpose of this application is achieved through the following technical solutions:

[0007] A rotary high-power mechanical phase shifter based on a sector waveguide, comprising a waveguide transmission module, a mechanical movement module and a motor drive module. The waveguide transmission module includes a sector waveguide housing and a shape conversion housing. A first sector groove is provided inside the sector waveguide housing. First channels are provided on both sides of the sector waveguide housing. A first connecting plate is fixedly provided on one straight side of the sector waveguide housing, and a first choke is fixedly provided on the other straight side. There are two shape conversion housings, which are respectively arranged at both ends of the sector waveguide housing. A second channel is provided on the side of the shape conversion housing close to the sector waveguide housing. The first channel and the second channel are in communication with each other. The mechanical movement module includes a mechanical movement housing, a second choke and a rotating shaft. The rotating shaft is arranged in the sector waveguide housing along the length direction of the sector waveguide housing. The second choke is arranged on the rotating shaft along the length direction of the rotating shaft. A first connecting member is provided on the sector waveguide housing for connecting the sector waveguide housing and the mechanical movement housing. The motor drive module is used to drive the rotating shaft to rotate.

[0008] In some possible embodiments, the cross-section of the first choke is set to be sector-shaped. The length of the first choke is adapted to the internal length of the mechanical movement housing. A first choke groove is provided on the first choke.

[0009] In some possible embodiments, the first choke groove includes a first parallel groove and a plurality of first vertical grooves. The first parallel groove is provided along the length direction of the first choke. Both ends of the first parallel groove penetrate through. The first vertical groove is provided along the direction perpendicular to the length direction of the first choke. The first vertical groove is in communication with the first parallel groove. The plurality of first vertical grooves are evenly distributed along the length direction of the first choke.

[0010] In some possible embodiments, the first connecting member is set to be a first connecting bolt. A second connecting plate is fixedly provided on one side of the mechanical movement housing along the length direction of the mechanical movement housing. The side wall of the second connecting plate is used to abut against the first connecting plate. A first connecting hole is provided on the first connecting plate. The first connecting member slidably passes through the first connecting hole. A second connecting hole for threaded connection of the first connecting member is provided on the second connecting plate.

[0011] In some possible embodiments, the cross-section of the second choke is set to be sector-shaped. The outer arc radius of the second choke is smaller than the inner arc radius of the sector waveguide housing. A second choke groove is provided on the second choke.

[0012] In some possible embodiments, the second choke groove includes a second parallel groove and a second vertical groove. The second parallel groove is opened along the length direction of the second choke body, and both ends of the second parallel groove penetrate through. The second vertical groove is opened along a direction perpendicular to the length direction of the second choke body. A plurality of the second parallel grooves are uniformly opened along the arc surface of the second choke body, and a plurality of the second vertical grooves are uniformly arranged along the length direction of the second choke body. The second parallel groove and the second vertical groove are arranged in an alternating and communicating manner.

[0013] In some possible embodiments, the motor driving module includes a support body, a rotating motor, and a gear set. There are two support bodies, and the two support bodies are respectively arranged on both sides of the mechanical movable housing. A through hole for the rotating shaft to pass through is opened on the support body. A second connecting member is arranged on the support body, and the second connecting member is used to connect the support body and the mechanical movable housing. A clamping groove is opened on the support body, and the clamping groove is adapted to the sector waveguide housing. The rotating motor is fixedly arranged on the support body, and the output shaft of the rotating motor is in transmission connection with the rotating shaft through the gear set.

[0014] In some possible embodiments, the gear set includes a driving gear and a driven gear. The driving gear is coaxially and fixedly arranged on the output shaft of the rotating motor, the driven gear is coaxially connected with the rotating shaft, and the driving gear meshes with the driven gear.

[0015] In some possible embodiments, the rotating shaft includes a main shaft, a bearing round shaft, and a gear round shaft. The length of the main shaft is adapted to the length of the second choke body, and the length of the main shaft is less than the inner length of the opening of the sector waveguide housing. A connecting bearing is sleeved on the bearing round shaft, and the bearing round shaft and the connecting bearing are rotatably arranged in the through hole. The driven gear is coaxially and fixedly sleeved on the gear round shaft.

[0016] In some possible embodiments, a receiving groove is opened on one side of the sector waveguide housing. One end of the gear round shaft extends out of the sector waveguide housing and is located in the receiving groove. The driven gear is rotatably arranged in the receiving groove, and the size of the receiving groove is adapted to the driven gear.

[0017] In summary, the technical solutions of the embodiments of the present application have at least the following advantages and beneficial effects:

[0018] 1. Based on the sector waveguide structure design, phase adjustment is achieved by adjusting the rotation angle of the rotating shaft, and it is driven by a rotating motor and gears. The microwave transmission, mechanical movement, and motor driving modules are integrated in a cylindrical cavity, with a more compact and simple structure. There are no complex waveguide branches in the three-dimensional space direction, and the space utilization rate is relatively high.

[0019] 2. The phase adjustment is carried out by driving the choke to rotate through a rotating shaft. The principle is to change the propagation constant in the microwave transmission path by changing the size of the sector waveguide, thereby achieving phase adjustment. The required range of motion to complete 360° phase adjustment is much smaller than that of traditional mechanical waveguide phase shifters.

[0020] 3. Compared with the traditional rotating mechanical waveguide phase shifter that requires the rotation of the housing and has a relatively large load on the driving motor, in this application, the rotation of the choke is used to replace the rotation of the overall housing, effectively reducing the load on the motor, improving the dynamic characteristics of the motor drive, and further enhancing the real-time performance of phase adjustment.

[0021] 4. Based on the metasurface choke structure, this application forms an electromagnetic bandgap through a periodically arranged groove structure, effectively preventing microwave crosstalk. Through a regularly arranged groove structure, it can effectively retain the trajectory characteristics of the object surface, have good conformal characteristics, and can also effectively suppress the coupling resonance phenomenon. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 is the overall structural schematic diagram of the embodiment of this application;

[0023] Figure 2 is the structural schematic diagram of the waveguide transmission module of the embodiment of this application;

[0024] Figure 3 is the structural schematic diagram of the first choke of the embodiment of this application;

[0025] Figure 4 is the structural schematic diagram of the mechanical movement module of the embodiment of this application;

[0026] Figure 5 is the structural schematic diagram of the first connecting piece of the embodiment of this application;

[0027] Figure 6 is the structural schematic diagram of the second choke of the embodiment of this application;

[0028] Figure 7 is the structural schematic diagram of the motor drive module of the embodiment of this application;

[0029] Figure 8 is the partial structural schematic diagram of the embodiment of this application;

[0030] Figure 9 is the simulation S 11 curve graph;

[0031] Figure 10 is the simulation S 21 curve graph;

[0032] Figure 11It is the phase shift characteristic curve graph of the embodiment of the present application;

[0033] Figure 12 It is the schematic diagram of the resonance suppression effect of the embodiment of the present application.

[0034] Icon: 1. Waveguide transmission module; 11. Sector waveguide housing; 12. Shape conversion housing; 13. First sector groove; 14. First channel; 15. First connecting plate; 151. First connecting hole; 16. Second channel; 2. Mechanical activity module; 21. Mechanical activity housing; 22. Second choke; 23. Rotating shaft; 231. Main shaft; 232. Bearing round shaft; 233. Gear round shaft; 24. First connecting piece; 25. Second connecting plate; 251. Second connecting hole; 26. Second choke groove; 261. Second parallel groove; 262. Second vertical groove; 3. Motor drive module; 31. Support body; 32. Rotary motor; 33. Gear set; 331. Driving gear; 332. Driven gear; 34. Perforation; 35. Second connecting piece; 36. Card slot; 4. First choke; 41. First choke groove; 411. First parallel groove; 412. First vertical groove; 5. Accommodating groove. Detailed implementation manners

[0035] To make the objectives, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are some, but not all, of the embodiments of the present application. Usually, the components of the embodiments of the present application described and illustrated herein can be arranged and designed in various different configurations.

[0036] The following refers to Figures 1 to 12 for a further detailed description of the present application.

[0037] Refer to Figures 1 - 4 , a rotary high-power mechanical phase shifter based on a sector waveguide, including a waveguide transmission module 1, a mechanical activity module 2 and a motor drive module 3 (as Figure 7 shown).

[0038] Among them, refer to Figure 2, as an implementation of the present application, the waveguide transmission module 1 includes a sector waveguide housing 11 and a shape conversion housing 12. A first sector groove 13 is provided inside the sector waveguide housing 11. First channels 14 are provided on both sides of the sector waveguide housing 11. A first connecting plate 15 is fixedly provided on one straight side of the sector waveguide housing 11, and a first choke 4 is fixedly provided on the other straight side. There are two shape conversion housings 12, which are respectively arranged at both ends of the sector waveguide housing 11. A second channel 16 is provided on the side of the shape conversion housing 12 close to the sector waveguide housing 11. The first channel 14 communicates with the second channel 16.

[0039] Referring to Figure 2 , as an implementation of the present application, the sector waveguide housing 11 is made of a metal material, and the thickness of the sector waveguide housing 11 is k , the inner cavity shape is a sector structure, which is surrounded by two straight sides, an outer arc side, and an inner arc side respectively. The outer arc radius of the sector cavity is b , the inner arc radius is r , the opening angle is u , the overall length is l , the length of the opening section is h , and its dimensions satisfy h < l .

[0040] Referring to Figure 2 , as an implementation of the present application, the shape conversion housing 12 is made of a metal material, and the overall length is l 1, which is used to realize the transfer between waveguides of different shapes. The cross-sectional shape of the inner cavity on one side is the same as the cross-sectional shape of the inner cavity of the sector waveguide housing 11, and the shape on the other side mainly depends on the actual application scenario, and can be set as a rectangular waveguide, a circular waveguide, or even other special-shaped waveguide structures. Flange structures are provided at both ends of the shape conversion housing 12. One end is tightly connected to the sector waveguide housing 11 through screws, and the other end can be cascaded with other waveguides or adapters of corresponding dimensions.

[0041] As an implementation of the present application, referring to Figure 2 , a shape conversion housing 12 for the transition from a sector waveguide to a standard BJ100 rectangular waveguide is shown. The number of shape conversion housings 12 is two, which are symmetrically distributed in a mirror image and are respectively connected to the two side ports of the sector waveguide housing 11.

[0042] Referring to Figure 3 , the cross-section of the first choke 4 is set as a sector. The length of the first choke 4 is adapted to the internal length of the mechanical movable housing 21, and the length is h , and both ends are flush with the two ends of the opening section respectively. A first choke groove 41 is provided on the first choke 4.

[0043] As an implementation manner of the present application, the first choke fluid 4 is a sector-shaped metal entity, and the outer arc radius is b 1, b The length of 1 is usually equal to the outer arc radius of the sector cavity b plus the thickness of the sector waveguide housing 11 k , the outer arc edge of the first choke fluid 4 usually forms an arc transition with the outer arc edge of the sector waveguide housing 11, and the inner arc radius of the first choke fluid 4 is r 1, r 1 is usually greater than the inner arc radius of the sector cavity r , the opening angle of the first choke fluid 4 is v .

[0044] As an implementation manner of the present application, referring to Figure 3 , the first choke groove 41 includes a first parallel groove 411 and a plurality of first vertical grooves 412. The first parallel groove 411 is opened along the length direction of the first choke fluid 4, and its length is h , the width is e , the depth is d , both ends of the first parallel groove 411 are penetrated, the first vertical groove 412 is opened along the direction perpendicular to the length direction of the first choke fluid 4, the width is w , the depth is d , and the number thereof is m . The first vertical grooves 412 communicate with the first parallel groove 411, and the plurality of first vertical grooves 412 are uniformly distributed along the length direction of the first choke fluid 4.

[0045] The distribution rule of the first parallel groove 411 is that, taking the alignment of one side of the first choke fluid 4 with the e / 2 of the first parallel groove 411 as a reference, the vertical interval angle v / ( n +1) sets a parallel groove structure ( n is the number of the first parallel grooves 411). The distribution rule of the first vertical grooves 412 is that the distance from one side of the first choke fluid 4 ([[]] h / m – e ) / 2 is the first vertical groove 412, and the parallel interval distance h / m sets a groove structure.

[0046] Referring to Figure 4 , the mechanical activity module 2 includes a mechanical activity housing 21, a second choke fluid 22 and a rotating shaft 23. The rotating shaft 23 is rotatably arranged in the sector waveguide housing 11 along the length direction of the sector waveguide housing 11. The second choke fluid 22 is arranged on the rotating shaft 23 along the length direction of the rotating shaft 23. A first connecting member 24 is arranged on the sector waveguide housing 11, and the first connecting member 24 is used to connect the sector waveguide housing 11 and the mechanical activity housing 21.

[0047] Refer to Figure 4 , the mechanical movable housing 21 is made of metal and has the shape of an open sector shell structure with a certain arc, and the thickness of the housing is k . The inner cavity of the mechanical movable housing 21 has the shape of a sector structure, which is respectively surrounded by two end sector cross-sections and an outer arc edge. The outer arc radius of the sector cavity is b , and the opening angle is u 1, and the overall length is h .

[0048] Refer to Figure 5 , as an implementation manner of the present application, the first connecting member 24 is set as a first connecting bolt. A second connecting plate 25 is fixedly arranged on one side of the mechanical movable housing 21 along the length direction of the mechanical movable housing 21. The side wall of the second connecting plate 25 is used to abut against the first connecting plate 15. A first connecting hole 151 is formed on the first connecting plate 15. The first connecting member 24 slidably penetrates through the first connecting hole 151, and a second connecting hole 251 for threaded connection of the first connecting member 24 is formed on the second connecting plate 25.

[0049] Refer to Figure 6 , the cross-section of the second choke fluid 22 is set as a sector, and a second choke groove 26 is formed on the second choke fluid 22. The outer arc radius of the second choke fluid 22 is b 2. To ensure that the fan blade can rotate normally in the sector waveguide housing 11, it is necessary to satisfy b 2 < b , the inner arc radius is r , the overall length of the second choke fluid 22 is h 1, and the opening angle is w .

[0050] Refer to Figure 6 , as an implementation manner of the present application, the second choke groove 26 includes a second parallel groove 261 and a second vertical groove 262. The second parallel groove 261 is formed along the length direction of the second choke fluid 22. Both ends of the second parallel groove 261 penetrate through, and the length is h 1, the width is e , the depth is d 1, and the number is n 1. Its distribution rule is: taking the alignment of one side of the second choke fluid 22 with the / 2 of the parallel groove as a reference, a groove structure is set at a vertical interval angle e / 2 w / ( n 1 + 1).

[0051] Refer to Figure 6, as an implementation manner of the present application, the second vertical groove 262 is opened along a direction perpendicular to the length direction of the second choke fluid 22, and the second parallel groove 261 and the second vertical groove 262 are arranged in an interlaced and communicating manner, with a width of e , and a depth of d 1, and the number thereof is m 1. Its distribution rule is: at a distance of ( h / m 1 – e ) / 2 from one side of the fan-shaped cavity of the mechanical movable housing 21 is the first vertical groove 412, and a groove structure is arranged at a parallel interval distance of h / m 1.

[0052] Referring to Figure 7 , 8 , the motor drive module 3 is used to drive the rotation shaft 23 to rotate. As an implementation manner of the present application, the motor drive module 3 includes a support body 31, a rotary motor 32, and a gear set 33. There are two support bodies 31, and the two support bodies 31 are respectively arranged on both sides of the mechanical movable housing 21. A through hole 34 for the rotation shaft 23 to pass through is opened on the support body 31. A second connecting member 35 is arranged on the support body 31, and the second connecting member 35 is used to connect the support body 31 and the mechanical movable housing 21. A clamping groove 36 is opened on the support body 31, and the clamping groove 36 is adapted to the fan-shaped waveguide housing 11. The rotary motor 32 is fixedly arranged on the support body 31, and the output shaft of the rotary motor 32 is in transmission connection with the rotation shaft 23 through the gear set 33.

[0053] As an implementation manner of the present application, the second connecting member 35 is set as a connecting bolt.

[0054] As an implementation manner of the present application, referring to Figure 7 , 8 , the support body 31 is made of a metal material and is a disc structure with a radius of R.

[0055] Referring to Figure 7 , 8 , the gear set 33 includes a driving gear 331 and a driven gear 332. The driving gear 331 is coaxially and fixedly arranged on the output shaft of the rotary motor 32, the driven gear 332 is coaxially connected with the rotation shaft 23, and the driving gear 331 meshes with the driven gear 332.

[0056] Referring to Figure 4 , Figure 7 and Figure 8, the rotating shaft 23 includes a main shaft 231, a bearing round shaft 232, and a gear round shaft 233. The length of the main shaft 231 is adapted to the length of the second choke fluid 22, and the length of the main shaft 231 is less than the inner length of the opening of the sector waveguide housing 11. A connecting bearing is sleeved on the bearing round shaft 232. The bearing round shaft 232 and the connecting bearing are arranged in the through hole 34. The driven gear 332 is coaxially and fixedly sleeved on the gear round shaft 233.

[0057] Referring to Figure 8 , a receiving groove 5 is formed on one side of the sector waveguide housing 11. One end of the gear round shaft 233 extends out of the sector waveguide housing 11 and is located in the receiving groove 5. The driven gear 332 is rotatably arranged in the receiving groove 5, and the size of the receiving groove 5 is adapted to the driven gear 332.

[0058] Compared with the traditional high-power mechanical waveguide phase shifter structure, the structure of the present application integrates three modules in a cylindrical cavity, has the structural advantage of high compactness, and the overall three-dimensional structure is simple without complex branches, which can effectively reduce the space required for multi-body cascading.

[0059] As Figure 9 shown, the phase shifter described in the present application can achieve 360° phase adjustment by rotating the rotating shaft 23 and the second choke fluid 22 by 45° (the specific range of the rotation angle g is -10° to 35°). The movement range is small. With the high-speed rotating motor 32 and the gear transmission structure, rapid phase adjustment can be achieved, and a 360° phase shift cycle can be completed within 20 ms.

[0060] As Figure 10 shown, in the range of 9.7 GHz - 10 GHz, the return loss of the phase shifter described in the present application is better than 20 dB.

[0061] As Figure 11 shown, the insertion loss is better than 0.05 dB, and it has good electromagnetic performance.

[0062] As Figure 12 shown, there is an electromagnetic resonance phenomenon in the scenario without a choke structure, and severe reflections occur at some frequency points, reducing the performance of the phase shifter. By loading the choke structure (the first choke fluid 4 and the second choke fluid 22) described in the present application, the potential electromagnetic resonance in the phase shifter can be effectively suppressed, and the insertion loss of the overall structure can be reduced.

[0063] The above are only the preferred embodiments of the present application and are not used to limit the present application. For those skilled in the art, the present application can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A rotary high-power mechanical phase shifter based on a fan-shaped waveguide, characterized in that: The invention comprises a waveguide transmission module (1), a mechanical activity module (2) and a motor drive module (3), wherein the waveguide transmission module (1) comprises a fan-shaped waveguide housing (11) and a shape conversion housing (12), wherein a first fan-shaped groove (13) is provided inside the fan-shaped waveguide housing (11), and first channels (14) are provided on both sides of the fan-shaped waveguide housing (11), a first connecting plate (15) is fixedly provided on a straight side of one side of the fan-shaped waveguide housing (11), and a first choke body (4) is fixedly provided on a straight side of the other side, and two shape conversion housings (12) are provided, and the two shape conversion housings (12) are respectively provided at two ends of the fan-shaped waveguide housing (11), and a second channel (16) is provided on a side of the shape conversion housing (12) close to the fan-shaped waveguide housing (11), and the first channel (14) and the second channel (16) are communicated with each other; The mechanically movable module (2) comprises a mechanically movable housing (21), a second choke body (22) and a rotating shaft (23); the rotating shaft (23) is arranged inside the fan-shaped waveguide housing (11) along the length direction of the fan-shaped waveguide housing (11); the second choke body (22) is arranged on the rotating shaft (23) along the length direction of the rotating shaft (23); a first connecting member (24) is arranged on the fan-shaped waveguide housing (11); the first connecting member (24) is used to connect the fan-shaped waveguide housing (11) and the mechanically movable housing (21); The motor drive module (3) is used to drive the rotating shaft (23) to rotate; The cross section of the second choke body (22) is arranged to be fan-shaped, the outer arc radius of the second choke body (22) is smaller than the inner arc radius of the fan-shaped waveguide housing (11), and a second choke groove (26) is provided on the second choke body (22); The second choke slot (26) comprises a second parallel slot (261) and a second vertical slot (262), wherein the second parallel slot (261) is opened along the length direction of the second choke body (22), and both ends of the second parallel slot (261) are arranged through, and the second vertical slot (262) is opened along the length direction perpendicular to the second choke body (22), a plurality of the second parallel slots (261) are evenly opened along the arc surface of the second choke body (22), a plurality of the second vertical slots (262) are evenly arranged along the length direction of the second choke body (22), and the second parallel slots (261) and the second vertical slots (262) are arranged to be interlaced and connected with each other.

2. A rotary high-power mechanical phase shifter based on a fan-shaped waveguide according to claim 1, characterized in that: The cross section of the first choke body (4) is arranged to be fan-shaped, the length of the first choke body (4) is adapted to the internal length of the mechanical movable housing (21), and a first choke groove (41) is provided on the first choke body (4).

3. A rotary high-power mechanical phase shifter based on a fan-shaped waveguide according to claim 2, characterized in that: The first choke slot (41) comprises a first parallel slot (411) and a plurality of first vertical slots (412); the first parallel slot (411) is opened along the length direction of the first choke body (4); both ends of the first parallel slot (411) are penetrated; the first vertical slot (412) is opened along a length direction perpendicular to the first choke body (4); the first vertical slot (412) and the first parallel slot (411) are interconnected; and the plurality of first vertical slots (412) are evenly distributed along the length direction of the first choke body (4).

4. The rotary high-power mechanical phase shifter based on fan-shaped waveguide according to claim 1, characterized in that: The first connecting member (24) is configured as a first connecting bolt, and a second connecting plate (25) is fixedly arranged on one side of the mechanical movable housing (21) along the length direction of the mechanical movable housing (21); a side wall of the second connecting plate (25) is used to abut against the first connecting plate (15); a first connecting hole (151) is provided on the first connecting plate (15); the first connecting member (24) is slidably inserted into the first connecting hole (151); and a second connecting hole (251) for threaded connection of the first connecting member (24) is provided on the second connecting plate (25).

5. The rotary high-power mechanical phase shifter based on fan-shaped waveguide according to claim 1, characterized in that: The motor drive module (3) comprises a support body (31), a rotating motor (32) and a gear set (33). Two support bodies (31) are provided, and the two support bodies (31) are respectively provided on two sides of a mechanical movable housing (21). A through hole (34) for the rotating shaft (23) to pass through is provided on the support body (31). A second connecting member (35) is provided on the support body (31), and the second connecting member (35) is used to connect the support body (31) and the mechanical movable housing (21). A slot (36) is provided on the support body (31), and the slot (36) is compatible with the fan-shaped waveguide housing (11). The rotating motor (32) is fixedly provided on the support body (31), and the output shaft of the rotating motor (32) is transmission-connected to the rotating shaft (23) via the gear set (33).

6. The rotary high-power mechanical phase shifter based on fan-shaped waveguide according to claim 5, characterized in that: The gear set (33) comprises a driving gear (331) and a driven gear (332); the driving gear (331) is coaxially fixedly arranged on the output shaft of the rotating motor (32); the driven gear (332) is coaxially connected to the rotating shaft (23); and the driving gear (331) meshes with the driven gear (332).

7. The rotary high-power mechanical phase shifter based on fan-shaped waveguide according to claim 6, characterized in that: The rotating shaft (23) comprises a main shaft (231), a bearing shaft (232) and a gear shaft (233); the length of the main shaft (231) matches the length of the second choke body (22); the length of the main shaft (231) is less than the length of the opening of the fan-shaped waveguide housing (11); a connecting bearing is sleeved on the bearing shaft (232); the bearing shaft (232) and the connecting bearing are rotatably arranged in the through hole (34); and the driven gear (332) is coaxially fixedly sleeved on the gear shaft (233).

8. The rotary high-power mechanical phase shifter based on fan-shaped waveguide according to claim 7, characterized in that: A receiving groove (5) is provided on one side of the fan-shaped waveguide housing (11); one end of the gear circular shaft (233) extends out of the fan-shaped waveguide housing (11) and is located in the receiving groove (5); the driven gear (332) is rotatably disposed in the receiving groove (5); and the size of the receiving groove (5) is adapted to that of the driven gear (332).

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