Adjustable filter for communication
By setting the resonator and sliding chassis seat in the adjustable filter for communication, the problem of difficult to take into account both out-of-band suppression capability and electrical performance in the miniaturized filter is solved, and efficient filtering effect and flexible maintenance process are achieved.
Patent Information
- Application Number
- CN202421651533.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-12
- Publication Date
- 2025-05-06
- Estimated Expiration
- 2034-07-12
AI Technical Summary
In communication systems, with the density of frequency bands, the out-of-band suppression capability and electrical performance of the filter are difficult to take into account in the case of miniaturization, resulting in a decline in communication quality and an increase in frequency band interference.
An adjustable filter for communication is designed. By setting a first overlap resonant rod to overlap the resonant groove at the top of the resonant on both sides, the resonant effect is achieved. The resonators on both sides are uniformly filtered to improve the filtering efficiency, and the sliding drawing design of the sliding chassis seat is designed to facilitate the disassembly and maintenance of the device.
It achieves efficient out-of-band rejection and electrical performance in miniaturized filters, improves filtering efficiency and flexibility, and simplifies the repair and replacement process.
Smart Images
Figure CN222839007U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of communication filters, in particular to an adjustable filter for communication. Background Art
[0002] A filter is a device used for filtering. By connecting the filter to the power supply, the frequency points of specific frequencies in the power line can be effectively filtered out to obtain a specific power supply signal. However, there are several types of filters. By classifying them into different types, filters can be divided into different categories. With the continuous development of communication technology, communication systems are developing in the direction of multi-band, multi-system, and multi-mode. The frequency bands used are becoming more and more dense. As the most important equipment in the communication system, the performance requirements of the filter are also getting higher and higher. The out-of-band suppression of the filter is an important factor in improving the communication quality and reducing the interference between the frequency bands. With the miniaturization of RF devices, the filter is also developing in the direction of miniaturization, but the reduction of the filter volume will affect the electrical performance of the filter; therefore, how to ensure the electrical performance of the filter, especially in the case of small-volume filters, is very important to ensure the electrical performance of the filter such as the out-of-band suppression capability. Therefore, we design an adjustable filter for communication. Utility Model Content
[0003] The utility model aims to provide an adjustable filter for communication.
[0004] In order to solve the above technical problems, the utility model provides the following technical solutions: an adjustable filter for communication, comprising an installation main body box, bottom slide rails are fixedly installed on both sides of the bottom end inside the installation main body box, a bottom sliding adjustment groove is provided at the inner bottom end of the bottom slide rail, a sliding chassis seat is movably installed inside the bottom sliding adjustment groove, a mounting base is fixedly installed on the top surface of one side of the sliding chassis seat, a resonator is fixedly installed on the top surface of one side of the mounting base, and a resonance groove is provided on one side surface of the resonator.
[0005] Preferably, a mounting chassis is fixedly installed in the middle of the top end of one side of the sliding chassis seat, a connecting column is fixedly installed on the top end of one side of the mounting chassis, a rotating adjustment disk is rotatably connected to the top end of one side of the connecting column, a first movable connecting shaft is rotatably connected to a surface of one side of the rotating adjustment disk, a first lap resonance rod is fixedly connected to one side of the first movable connecting shaft, a second movable connection is rotatably connected to a surface of one side of the first movable connecting shaft, and a second lap resonance rod is fixedly connected to one side of the second movable connection.
[0006] Preferably, the number of the resonators is two, and the two resonators are symmetrically distributed on both sides of the connecting column. The connection relationship between the first overlapping resonance rod and the resonance slot is a movable snap-in connection, and the connection relationship between the second overlapping resonance rod and the resonance slot is a movable snap-in connection.
[0007] Preferably, the number of the first lap resonance rod and the number of the second lap resonance rod are both two, the two first lap resonance rods and the two second lap resonance rods are symmetrically distributed on the surrounding surfaces of the rotating adjustment disk, and the cross-sectional area of the first lap resonance rod is greater than the cross-sectional area of the second lap resonance rod.
[0008] Preferably, a side sealing plate is fixedly connected to the top end of one side of the sliding chassis seat, and a plate handle is fixedly installed on the top end of the back side sealing plate.
[0009] Preferably, a top slide rail is fixedly installed on the top of one side of the installation main box, a sliding groove is opened inside the top slide rail, a sealing top cover is movably installed inside the sliding groove, and a cover handle is fixedly installed on the top of one side of the sealing top cover.
[0010] Preferably, the connection relationship between the bottom slide rail and the sliding chassis seat is a sliding connection, and the connection relationship between the top slide rail and the sealing top cover is a sliding connection.
[0011] Preferably, the cross-sectional area of the sealing top cover is the same as the top cross-sectional area of the installation main box, and the cross-sectional area of the side sealing plate is the same as the top cross-sectional area of the side of the installation main box.
[0012] Compared with the related art, the adjustable filter for communication provided by the utility model has the following beneficial effects:
[0013] 1. The utility model provides an adjustable filter for communication, which realizes the resonance effect by setting a first overlapping resonance rod to overlap the inside of the resonance groove at the top of the resonators on both sides, and utilizes the resonators on both sides to uniformly perform filtering, thereby improving the filtering efficiency of the device and ensuring the comprehensiveness of the filtering. The switching of the second overlapping resonance rod and the first overlapping resonance rod can control the resonance effect, and make appropriate adjustments according to actual conditions to increase the flexibility of the device. The rotation of the first movable connecting shaft and the second movable connecting shaft facilitates the adjustment of the second overlapping resonance rod and the first overlapping resonance rod, further increasing the flexibility of use of the second overlapping resonance rod and the first overlapping resonance rod.
[0014] 2. The utility model provides an adjustable filter for communication. By setting the sliding chassis seat to slide and pull inside the bottom slide rail, the sliding chassis seat can be disassembled as a whole. When a device at the top of the sliding chassis seat fails, firstly, the main body of the device can be disassembled through the sliding chassis seat for inspection, which is also convenient for maintenance. Secondly, the filter device can be directly replaced as a whole through the overall replacement device of the sliding chassis seat, which is simple and convenient. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;
[0016] Figure 2 This is a schematic diagram of the overall structure of the sliding chassis seat of the utility model;
[0017] Figure 3 This is a schematic diagram of the overall top view structure of the installation main body box of the utility model;
[0018] Figure 4 It is a schematic diagram of the connection structure of the bottom slide rail and the sliding chassis seat of the utility model.
[0019] Numbers in the figure: 1. Install the main box; 2. Bottom slide rail; 3. Bottom sliding adjustment groove; 4. Sliding chassis seat; 5. Install the base; 6. Resonator; 7. Resonance groove; 8. Install the chassis; 9. Connecting column; 10. Rotate the adjustment disk; 11. The first movable connection shaft; 12. The first overlapping resonance rod; 13. The second movable connection; 14. The second overlapping resonance rod; 15. Side sealing plate; 16. Plate handle; 17. Top slide rail; 18. Sliding groove; 19. Sealed top cover; 20. Cover handle. DETAILED DESCRIPTION
[0020] Embodiment 1:
[0021] See also Figure 1-4The utility model provides a technical solution: a tunable filter for communication, comprising an installation main body box 1, bottom slide rails 2 are fixedly installed on both sides of the bottom end inside the installation main body box 1, a bottom sliding adjustment groove 3 is provided at the bottom end of the bottom slide rail 2, a sliding chassis seat 4 is movably installed inside the bottom sliding adjustment groove 3, a mounting base 5 is fixedly installed on the top surface of one side of the sliding chassis seat 4, a resonator 6 is fixedly installed on the top of one side of the mounting base 5, a resonance groove 7 is provided on one side surface of the resonator 6, a mounting chassis 8 is fixedly installed in the middle of the top of one side of the sliding chassis seat 4, a connecting column 9 is fixedly installed on the top of one side of the mounting chassis 8, a rotating adjustment disk 10 is rotatably connected to the top of one side of the connecting column 9, a first movable connecting shaft 11 is rotatably connected to the surface of one side of the rotating adjustment disk 10, and the first movable connecting shaft 11 is rotatably connected to the first movable connecting shaft 11. A first lap resonant rod 12 is fixedly connected to one side of the movable connecting shaft 11, a second movable connection 13 is rotatably connected to one side surface of the first movable connecting shaft 11, a second lap resonant rod 14 is fixedly connected to one side of the second movable connection 13, the number of resonators 6 is two, and the two resonators 6 are symmetrically distributed on both sides of the connecting column 9, the connection relationship between the first lap resonant rod 12 and the resonant slot 7 is a movable snap-in connection, the connection relationship between the second lap resonant rod 14 and the resonant slot 7 is a movable snap-in connection, the number of the first lap resonant rod 12 and the second lap resonant rod 14 are both two, the two first lap resonant rods 12 and the two second lap resonant rods 14 are symmetrically distributed on the surrounding surfaces of the rotating adjusting disk 10, and the cross-sectional area of the first lap resonant rod 12 is larger than the cross-sectional area of the second lap resonant rod 14.
[0022] In the implementation scheme, the resonance effect is achieved by setting the first lap resonance rod 12 to overlap the inside of the resonance groove 7 at the top of the resonators 6 on both sides, and the filtering effect of the resonators 6 on both sides is utilized to improve the filtering efficiency of the device, while ensuring the comprehensiveness of the filtering. The switching of the second lap resonance rod 14 and the first lap resonance rod 12 can control the resonance effect, and make appropriate adjustments according to actual conditions to increase the flexibility of the device. The rotation of the first movable connecting shaft 11 and the second movable connecting shaft 13 facilitates the adjustment of the second lap resonance rod 14 and the first lap resonance rod 12, and further increases the flexibility of use of the second lap resonance rod 14 and the first lap resonance rod 12.
[0023] Embodiment 2:
[0024] See also Figure 1-4The utility model provides a technical solution: a tunable filter for communication, comprising a side sealing plate 15 fixedly connected to the top of one side of a sliding chassis seat 4, a plate handle 16 fixedly installed on the top of the back side of the side sealing plate 15, a top slide rail 17 fixedly installed on the top of one side of an installation main body box 1, a sliding groove 18 is opened inside the top slide rail 17, a sealing top cover 19 is movably installed inside the sliding groove 18, a cover handle 20 is fixedly installed on the top of one side of the sealing top cover 19, the connection relationship between the bottom slide rail 2 and the sliding chassis seat 4 is a sliding connection, the connection relationship between the top slide rail 17 and the sealing top cover 19 is a sliding connection, the cross-sectional area of the sealing top cover 19 is the same as the cross-sectional area of the top of the installation main body box 1, and the cross-sectional area of the side sealing plate 15 is the same as the cross-sectional area of the top of the side of the installation main body box 1.
[0025] In the implementation scheme, by setting the sliding chassis seat 4 to slide and pull inside the bottom slide rail 2, the sliding chassis seat 4 can be disassembled as a whole. When the device at the top of the sliding chassis seat 4 fails, first, the main body of the device can be disassembled through the sliding chassis seat 4 for inspection, which is also convenient for maintenance. Secondly, the overall replacement device of the sliding chassis seat 4 can be used to directly replace the filter device as a whole, which is simple and convenient.
[0026] Working principle:
[0027] By setting the first lap resonance rod 12 to overlap the inside of the resonance slot 7 at the top of the resonators 6 on both sides, the resonance effect is achieved, and the filtering effect of the resonators 6 on both sides is unified to improve the filtering efficiency of the device, while ensuring the comprehensiveness of the filtering. The switching of the second lap resonance rod 14 and the first lap resonance rod 12 can control the resonance effect, and make appropriate adjustments according to actual conditions to increase the flexibility of the device. The rotation of the first movable connecting shaft 11 and the second movable connecting shaft 13 facilitates the adjustment of the second lap resonance rod 14 and the first lap resonance rod 12, further increasing the flexibility of the use of the second lap resonance rod 14 and the first lap resonance rod 12;
[0028] By setting the sliding chassis seat 4 to slide and pull inside the bottom slide rail 2, the sliding chassis seat 4 can be disassembled as a whole. When the device at the top of the sliding chassis seat 4 fails, firstly, the main body of the device can be disassembled through the sliding chassis seat 4 for inspection and maintenance, which is also convenient for maintenance. Secondly, the filter device can be directly replaced as a whole through the overall replacement device of the sliding chassis seat 4, which is simple and convenient.
[0029] By sliding the sealing top cover 19 inside the top slide rail 17 , the main body box 1 is sealed, thereby achieving a dust-proof effect for the main body box 1 .
Claims
1. A tunable filter for communication, comprising a mounting main body box (1), wherein bottom slide rails (2) are fixedly mounted on both sides of the bottom end of the mounting main body box (1), characterized in that: A bottom sliding adjustment groove (3) is provided at the inner bottom end of the bottom sliding rail (2); a sliding chassis seat (4) is movably mounted inside the bottom sliding adjustment groove (3); a mounting base (5) is fixedly mounted on the top surface of one side of the sliding chassis seat (4); a resonator (6) is fixedly mounted on the top surface of one side of the mounting base (5); and a resonance groove (7) is provided on one side surface of the resonator (6).
2. A tunable filter for communication according to claim 1, characterized in that: A mounting chassis (8) is fixedly mounted in the middle of the top of one side of the sliding chassis seat (4); a connecting column (9) is fixedly mounted on the top of one side of the mounting chassis (8); a rotating adjustment disk (10) is rotatably connected to the top of one side of the connecting column (9); a first movable connecting shaft (11) is rotatably connected to the surface of one side of the rotating adjustment disk (10); a first lap resonance rod (12) is fixedly connected to one side of the first movable connecting shaft (11); a second movable connection (13) is rotatably connected to the surface of one side of the first movable connecting shaft (11); and a second lap resonance rod (14) is fixedly connected to one side of the second movable connection (13).
3. A tunable filter for communication according to claim 2, characterized in that: The number of the resonators (6) is two, and the two resonators (6) are symmetrically distributed on both sides of the connecting column (9); the connection relationship between the first overlapping resonance rod (12) and the resonance slot (7) is a movable snap connection, and the connection relationship between the second overlapping resonance rod (14) and the resonance slot (7) is a movable snap connection.
4. A tunable filter for communication according to claim 2, characterized in that: The number of the first lap-jointed resonant rods (12) and the number of the second lap-jointed resonant rods (14) are both two, the two first lap-jointed resonant rods (12) and the two second lap-jointed resonant rods (14) are symmetrically distributed on the surrounding surface of the rotating adjustment disk (10), and the cross-sectional area of the first lap-jointed resonant rod (12) is greater than the cross-sectional area of the second lap-jointed resonant rod (14).
5. The tunable filter for communication according to claim 1, characterized in that: A side sealing plate (15) is fixedly connected to the top end of one side of the sliding chassis seat (4), and a plate handle (16) is fixedly mounted to the top end of the back side of the side sealing plate (15).
6. A tunable filter for communication according to claim 5, characterized in that: A top slide rail (17) is fixedly mounted on the top of one side of the installation main body box (1), a slide groove (18) is provided inside the top slide rail (17), a sealing top cover (19) is movably mounted inside the slide groove (18), and a cover handle (20) is fixedly mounted on the top of one side of the sealing top cover (19).
7. A tunable filter for communication according to claim 6, characterized in that: The connection relationship between the bottom slide rail (2) and the sliding chassis seat (4) is a sliding connection, and the connection relationship between the top slide rail (17) and the sealing top cover (19) is a sliding connection.
8. The tunable filter for communication according to claim 6, characterized in that: The cross-sectional area of the sealing top cover (19) is the same as the cross-sectional area of the top end of the installation main box (1), and the cross-sectional area of the side sealing plate (15) is the same as the cross-sectional area of the top end of the side of the installation main box (1).