High-performance waveguide filter

Abstract

The utility model relates to the technical field of filters, and provides a high-performance waveguide filter, which comprises a resonator, a fixed partition plate is fixed in the middle of the inner wall of the resonator, a first coupling window is arranged in the middle of one side wall of the fixed partition plate, and moving grooves are symmetrically arranged on the top surface of the inner side of the resonator. Waveguide flange plates are symmetrically fixed to the ends of the resonators, connecting holes are formed in the edges of one side walls of the waveguide flange plates, rotating screws are movably inserted into the inner sides of the connecting holes, moving blocks are in threaded connection with the outer sides of the rotating screws, moving partition plates are fixed to the bottom faces of the moving blocks, and the moving partition plates are movably inserted into the inner sides of the resonators. According to the utility model, the inner part of the resonator is divided into a plurality of cavities by using the fixed partition plate and the movable partition plates, and the space size of each cavity can be controlled through the movement adjustment of the movable partition plates at the two sides of the fixed partition plate, so that the use requirements under different conditions are met, and the practicability is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of filters, and particularly relates to a high-performance waveguide filter. Background Art

[0002] A waveguide filter is a type of transmission line filter. Generally, a waveguide filter consists of discontinuities and transmission line segments. Both can be equivalent to corresponding lumped parameter elements and circuits. The waveguide discontinuity structure provides equivalent reactance, and the transmission line segment is equivalent to a resonant cavity, etc. With the development of wireless communication technology, modern advanced radio communication systems require high-performance and multifunctional microwave and millimeter-wave devices to adapt to complex and changing electromagnetic environments. In these radio communication systems, especially in the RF front-end transceiver systems, waveguide filters have advantages such as diverse RF functions, low RF insertion loss, and large power capacity, and are one of the key focuses of researchers.

[0003] Currently, for existing high-performance waveguide filters, the sizes of multiple chambers inside the resonator are mostly fixed designs and cannot be adjusted as needed, resulting in poor practicability.

[0004] Therefore, a high-performance waveguide filter is needed that can individually adjust the sizes of multiple chambers inside the resonator to meet the usage requirements in different situations. Summary of the Utility Model

[0005] To solve the above problems, the utility model proposes a high-performance waveguide filter with high adjustability, convenient use, and strong practicability.

[0006] To achieve the above purpose, the utility model proposes the following specific solutions:

[0007] A high-performance waveguide filter, comprising a resonator. In the middle of the inner wall of the resonator, a fixed partition is fixed. In the middle of one side wall of the fixed partition, a first coupling window is provided. On the inner top surface of the resonator, moving grooves are symmetrically provided. At the end of the resonator, waveguide flange plates are symmetrically fixed. In the middle of one side wall of the waveguide flange plate, a connection port is provided. The connection port communicates with the inside of the resonator. At the edge of one side wall of the waveguide flange plate, a connection hole is provided. The connection hole communicates with the moving groove. One end of the connection hole is connected with a rectangular groove in a through manner. At the edge of one side wall of the rectangular groove, a rotation hole is provided. The rotation hole is located above the connection hole. A rotation screw is movably inserted into the inner side of the connection hole. The rotation screw is located inside the moving groove. A moving block is threadedly connected to the outer side of the rotation screw. The moving block is movably inserted into the moving groove. A moving partition is fixed to the bottom surface of the moving block. The moving partition is movably inserted into the resonator. In the middle of one side wall of the moving partition, a second coupling window is provided. One end of the rotation screw is fixed with a first gear. The first gear is located inside the rectangular groove. A rotation shaft is movably inserted into the rotation hole. One end of the rotation shaft is fixed with a second gear. The second gear is located inside the rectangular groove. The second gear meshes with the first gear. The other end of the rotation shaft is fixed with a rotation disk. The rotation disk is located on one side of the waveguide flange plate.

[0008] As a preferred technical solution of the high-performance waveguide filter of the present utility model, a threaded hole is provided on one side wall of the moving block, and the rotation screw is threadedly connected inside the threaded hole.

[0009] As a preferred technical solution of the high-performance waveguide filter of the present utility model, a connection groove is provided in the middle of one side wall of the moving groove.

[0010] As a preferred technical solution of the high-performance waveguide filter of the present utility model, a connecting rod is fixed to the other end of the rotation screw, and the connecting rod is movably inserted into the connection groove.

[0011] As a preferred technical solution of the high-performance waveguide filter of the present utility model, a limiting ring is fixedly sleeved on the outer wall of one end of the rotation screw, and the limiting ring is located inside the moving groove.

[0012] As a preferred technical solution of the high-performance waveguide filter of the present utility model, a fixing hole is provided at the edge of one side wall of the waveguide flange plate.

[0013] As a preferred technical solution of the high-performance waveguide filter of the present utility model, an anti-slip block is fixed to the outer wall of one end of the rotation disk.

[0014] As a preferred technical solution of the high-performance waveguide filter of the present utility model, the anti-slip block is made of a flexible material, and a plurality of anti-slip blocks are provided.

[0015] Compared with the existing technology, the utility model has the following beneficial effects:

[0016] In the resonator of the utility model, a fixed partition is arranged, and moving partitions are arranged in the spaces on both sides of the fixed partition. By rotating the rotating disk, the second gear is driven to rotate, the second gear drives the first gear meshed with it to rotate, and the first gear drives the rotating screw rod to rotate, so that the moving block drives the moving partition to move inside the resonator. By using this movement, the distance between the fixed partition and the moving partition can be adjusted, so as to change the size of the internal cavity separated by the fixed partition and the moving partition, and adjust according to the needs during use, which has extremely strong flexibility and convenience. Description of the Drawings

[0017] In order to better describe the technical solution of the utility model in detail, the present invention will be further described below in conjunction with the drawings and embodiments.

[0018] Figure 1 is the three-dimensional view of the overall structure provided by the utility model;

[0019] Figure 2 is the three-dimensional sectional view of the utility model;

[0020] Figure 3 is the utility model Figure 2 the enlarged schematic view of part A in;

[0021] Figure 4 is the utility model Figure 2 the enlarged schematic view of part B in;

[0022] Figure 5 is the utility model Figure 2 the enlarged schematic view of part C in.

[0023] In the figure: 1. Resonator; 11. Fixed partition; 111. First coupling window; 12. Moving groove; 121. Connecting groove; 13. Rotating screw rod; 131. First gear; 132. Limit ring; 133. Connecting rod; 14. Moving partition; 141. Second coupling window; 15. Moving block; 151. Threaded hole; 2. Waveguide flange; 21. Connection port; 22. Fixed hole; 23. Connection hole; 231. Rectangular groove; 232. Rotating hole; 24. Rotating shaft; 241. Second gear; 242. Rotating disk; 243. Anti-slip block. Detailed Embodiment

[0024] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model. Embodiment

[0025] Please refer to Figures 1-5 As shown, the present utility model provides the following technical solution: a high-performance waveguide filter, including a resonator 1. Waveguide flanges 2 are symmetrically fixed at the ends of the resonator 1 for connection with external devices. A connection port 21 is provided in the middle of one side wall of the waveguide flange 2, and the connection port 21 communicates with the inside of the resonator 1 to enable signal transmission. A fixing hole 22 is provided at the edge of one side wall of the waveguide flange 2 for fixing the waveguide flange 2 to an external device using tools such as bolts. The installation and fixation of this solution with other devices are simple and convenient to use.

[0026] Refer to Figure 1 、 Figure 2 、 Figure 3 And Figure 4As shown, specifically, a fixed partition 11 is fixed in the middle of the inner wall of the resonator 1 for separating the internal space of the resonator 1. A first coupling window 111 is provided in the middle of one side wall of the fixed partition 11 for signal transmission and filtering. Symmetric moving grooves 12 are provided on the inner top surface of the resonator 1 to facilitate the movement of the moving block 15. A connecting hole 23 is provided at the edge of one side wall of the waveguide flange 2 to facilitate the connection between the rotating screw 13 and the first gear 131. The connecting hole 23 communicates with the moving groove 12. One end of the connecting hole 23 is connected with a rectangular groove 231 in a through manner, providing a running space for the first gear 131 and the second gear 241. A rotating screw 13 is movably inserted into the inner side of the connecting hole 23 for driving the moving block 15 to move. The rotating screw 13 is located inside the moving groove 12. A moving block 15 is threadedly connected to the outer side of the rotating screw 13 for driving the moving partition 14 to move. The moving block 15 is movably inserted into the moving groove 12. A threaded hole 151 is provided on one side wall of the moving block 15, which can convert the rotation of the rotating screw 13 into the linear movement of the moving block 15. The rotating screw 13 is threadedly connected to the inner side of the threaded hole 151. A moving partition 14 is fixed to the bottom surface of the moving block 15 for separating the inner space of the resonator 1 and adjusting the size of the separated space. The moving partition 14 is movably inserted into the resonator 1. A second coupling window 141 is provided in the middle of one side wall of the moving partition 14, which has the same function as the first coupling window 111 for signal transmission and filtering. A first gear 131 is fixed to one end of the rotating screw 13. The first gear 131 is located inside the rectangular groove 231. The rotation of the first gear 131 can drive the rotating screw 13 to rotate. This solution can conveniently adjust the sizes of multiple chambers inside the resonator 1, and has strong flexibility and practicability.

[0027] Refer to Figure 1 、 Figure 2 and Figure 3As shown in the figure, specifically, a rotation hole 232 is provided at the edge of the inner wall of one side of the rectangular groove 231 to provide space for the connection and rotation of the rotation shaft 24. The rotation hole 232 is located above the connection hole 23. A rotation shaft 24 is movably inserted into the inner side of the rotation hole 232 for driving the rotation of the second gear 241. One end of the rotation shaft 24 is fixed with a second gear 241. The second gear 241 is located inside the rectangular groove 231. The second gear 241 meshes with the first gear 131. The second gear 241 can drive the first gear 131 to rotate. The other end of the rotation shaft 24 is fixed with a rotation disk 242. By turning the rotation disk 242, the rotation shaft 24 is driven to rotate. The rotation disk 242 is located on one side of the waveguide flange 2. An anti-slip block 243 is fixed on the outer wall of one end of the rotation disk 242. The anti-slip block 243 is made of a flexible material. There are multiple anti-slip blocks 243. The anti-slip blocks 243 are used to increase the friction force and facilitate turning the rotation disk 242. In this solution, the rotation disk 242 is used to drive the rotation of the second gear 241, thereby driving the first gear 13 and the rotation screw 13 to rotate, so that the movable partition 14 is adjusted to move. The operation method is simple and the adjustable degree is high.

[0028] Refer to Figure 1 , Figure 2 , Figure 3 and Figure 5 As shown in the figure, specifically, a connection groove 121 is provided in the middle of the inner wall of one side of the moving groove 12 for the connection and rotation of the connecting rod 133. The other end of the rotation screw 13 is fixed with a connecting rod 133. The connecting rod 133 is movably inserted into the inner side of the connection groove 121, which can prevent one end of the rotation screw 13 from shaking during rotation. A limiting ring 132 is fixedly sleeved on the outer wall of one end of the rotation screw 13. The limiting ring 132 is located inside the moving groove 12. The limiting ring 132 can prevent the rotation screw 13 from moving towards the direction of the waveguide flange 2. This solution can ensure the stability of the rotation of the rotation screw 13, reduce shaking, and avoid the phenomenon of the rotation screw 13 moving.

[0029] The working principle and usage process of the present utility model:

[0030] In use, the resonator 1 is connected to an external device through the fixing holes 22 on the waveguide flange 2. By turning the rotating disks 242 on both sides (the anti-slip blocks 243 can increase the friction force, making it more convenient to turn the rotating disks 242), the rotating shaft 24 drives the second gear 241 to rotate. Since the second gear 241 meshes with the first gear 131, the second gear 241 drives the first gear 131 to rotate. The first gear 131 drives the rotating screw 13 to rotate. The rotating screw 13 rotates inside the threaded hole 151 on the moving block 15, causing the moving block 15 to move along the moving groove 12. Thus, the moving partition 14 moves inside the resonator 1. By adjusting the distance between the moving partition 14 and the fixed partition 11 through the movement of the moving partition 14, the size of the chamber between the fixed partition 11, the moving partition 14, and the waveguide flange 2 can be changed, so as to meet different usage requirements.

[0031] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A high-performance waveguide filter, comprising a resonator (1), characterized in that: In the middle of the inner wall of the resonator (1), a fixed partition (11) is fixed. In the middle of one side wall of the fixed partition (11), a first coupling window (111) is provided. On the inner top surface of the resonator (1), moving grooves (12) are symmetrically provided. At the ends of the resonator (1), waveguide flange plates (2) are symmetrically fixed. In the middle of one side wall of the waveguide flange plate (2), a connection port (21) is provided. The connection port (21) communicates with the inside of the resonator (1). At the edge of one side wall of the waveguide flange plate (2), a connection hole (23) is provided. The connection hole (23) communicates with the moving groove (12). One end of the connection hole (23) is connected and provided with a rectangular groove (231). At the edge of one side wall of the rectangular groove (231), a rotation hole (232) is provided. The rotation hole (232) is located above the connection hole (23). A rotation screw (13) is movably inserted into the inside of the connection hole (23). The rotation screw (13) is located inside the moving groove (12). A moving block (15) is threadedly connected to the outside of the rotation screw (13). The moving block (15) is movably inserted into the inside of the moving groove (12). A moving partition (14) is fixed to the bottom surface of the moving block (15). The moving partition (14) is movably inserted into the inside of the resonator (1). In the middle of one side wall of the moving partition (14), a second coupling window (141) is provided. One end of the rotation screw (13) is fixed with a first gear (131). The first gear (131) is located inside the rectangular groove (231). A rotation shaft (24) is movably inserted into the inside of the rotation hole (232). One end of the rotation shaft (24) is fixed with a second gear (241). The second gear (241) is located inside the rectangular groove (231). The second gear (241) meshes with the first gear (131). The other end of the rotation shaft (24) is fixed with a rotation disc (242). The rotation disc (242) is located on one side of the waveguide flange plate (2).

2. The high-performance waveguide filter according to claim 1, wherein: On one side wall of the moving block (15), a threaded hole (151) is provided. The rotation screw (13) is threadedly connected to the inside of the threaded hole (151).

3. A high-performance waveguide filter according to claim 2, characterized in that: In the middle of one side wall of the moving groove (12), a connection groove (121) is provided.

4. The high-performance waveguide filter according to claim 3, characterized in that: The other end of the rotation screw (13) is fixed with a connecting rod (133). The connecting rod (133) is movably inserted into the inside of the connection groove (121).

5. A high-performance waveguide filter according to claim 4, characterized in that: A limiting ring (132) is fixedly sleeved on the outer wall of one end of the rotation screw (13). The limiting ring (132) is located inside the moving groove (12).

6. A high-performance waveguide filter according to claim 5, characterized in that: At the edge of one side wall of the waveguide flange plate (2), a fixing hole (22) is provided.

7. A high-performance waveguide filter according to claim 6, characterized in that: On the outer wall of one end of the rotation disc (242), an anti-slip block (243) is fixed.

8. A high-performance waveguide filter according to claim 7, characterized in that: The anti-slip block (243) is made of a flexible material. A plurality of anti-slip blocks (243) are provided.

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