Microwave port tiled double-pole double-throw switch
Through the tiling layout and the optimized design of conductive sheets, the problems of large size and high signal loss of the microwave port double-knife double-throw switch are solved, miniaturized and efficient signal transmission are achieved, and suitable for space-constrained scenarios.
Patent Information
- Application Number
- CN202411447053.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-16
- Publication Date
- 2024-12-24
AI Technical Summary
The existing microwave port double-knife double-throw switch has a complex mechanical structure and a large size, and is not suitable for use in space-constrained application scenarios.
The tiled layout design is adopted to drive the conductive sheet movement through the push rod to switch between ports. Combined with the design of chamfers, side steps and guide columns, the contact area and stability of the conductive sheet and port are optimized, and signal loss and reflection are reduced.
It reduces the overall volume of the switch, improves signal transmission efficiency and stability, reduces losses, is suitable for space-constrained application scenarios, and improves the microwave performance of the switch.
Smart Images
Figure CN119181601A_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of switches, and in particular to a double-pole double-throw switch with a microwave port flat layout. Background Art
[0002] At present, in the field of microwave communications, the microwave port double-pole double-throw switch (DPDT) is a key component that allows microwave signals to switch between two different paths. This switch is usually used in beamforming of antenna systems, phased array radars, wireless communication base stations, and other occasions that require signal routing. The basic structure of the microwave port double-pole double-throw switch includes two movable contact points (knives), each of which can contact one of the two fixed contact points (throws) to achieve four different connection states, and the working principle of the microwave port double-pole double-throw switch is to indirectly control the strip-wire bridge of the coaxial switch by controlling the attraction and release of the electromagnet to achieve the switching of the switch state.
[0003] Regarding the above-mentioned related technologies: the mechanical structure of the microwave port double-pole double-throw switch is relatively complex and occupies a large space, which makes the microwave port double-pole double-throw switch large in size and is not suitable for application scenarios with limited space. Summary of the invention
[0004] In order to reduce the size of the switch, the present application provides a double-pole double-throw switch with a microwave port flat layout.
[0005] The present application provides a microwave port flat layout double-pole double-throw switch, which adopts the following technical solution: A microwave port flat layout double-pole double-throw switch comprises a shell, on which four ports are arranged, the four ports are distributed in a rectangular shape, conductive sheets are arranged between adjacent ports, each conductive sheet is provided with a push rod, the conductive sheets and the push rod are respectively slidably arranged in the shell, and the push rod can drive the conductive sheet to move so that the conductive sheet overlaps with the corresponding two ports.
[0006] By adopting the above technical solution, the push rod can drive the conductive sheet to move, so that the conductive sheet overlaps or separates from the corresponding two ports, thereby facilitating the connection or disconnection between different ports, so that the microwave signal can be switched between the four ports, which is conducive to realizing the function of the double-pole double-throw switch. When the conductive sheet overlaps the port, the adjacent conductive sheets are located in the same plane, so that the four conductive sheets can be laid flat in the housing, and then the space required for the conductive sheet and the port is reduced by arranging the four conductive sheets flatly and designing the ports in a rectangular distribution, so as to reduce the overall volume of the switch, so that the switch can be suitable for application scenarios with limited space.
[0007] Optionally, both ends of the conductive sheet are respectively provided with chamfers, and when adjacent conductive sheets are overlapped with the same port, the surfaces of the adjacent conductive sheets provided with chamfers are in contact with each other.
[0008] By adopting the above technical solution, when adjacent conductive sheets are overlapped with the same port, the side with chamfers on the adjacent conductive sheets can better fit and contact, so as to increase the contact area between the adjacent conductive sheets, thereby helping to reduce contact resistance, improve signal transmission efficiency, and help reduce losses during signal transmission, so as to improve the overall working performance of the switch. Moreover, the setting of chamfers helps to reduce the discontinuity encountered by microwave signals during transmission, so as to reduce the reflection and scattering of microwave signals, improve the signal transmission quality, and thus help to achieve the purpose of microwave performance compensation.
[0009] Optionally, the four ports are grouped in pairs, and the two groups of ports are arranged opposite to each other. The conductive sheet between two ports in the same group is defined as a first conductive sheet, and the conductive sheet between two ports in different groups and opposite to each other is defined as a second conductive sheet, and the chamfer of the first conductive sheet is greater than the chamfer of the second conductive sheet.
[0010] By adopting the above technical solution, since the chamfer of the first conductive sheet is larger than the chamfer of the second conductive sheet, the contact between the conductive sheets is smoother when switching different ports, thereby reducing the friction loss generated during the switching process; at the same time, the larger chamfer is beneficial to the electromagnetic field matching during microwave signal transmission, thereby reducing the reflection loss of the signal during transmission and improving the overall performance and stability of the switch.
[0011] Optionally, chamfers or rounded corners are provided at the corners of the conductive sheet.
[0012] By adopting the above technical solution, the corners of the conductive sheet are provided with chamfered or rounded corners, which reduces the reflection of microwave signals at the corners of the conductive sheet, thereby helping to reduce energy loss during microwave signal transmission, so as to achieve the purpose of microwave performance compensation, and further helps to improve the microwave transmission efficiency of the overall switch.
[0013] Optionally, a conductor is coaxially arranged in the port, one end of the conductor extends into the shell and is provided with a side step, and the side step is used to overlap with the conductive sheet.
[0014] By adopting the above technical solution, the setting of the side step can effectively increase the overlap area and stability between the conductive sheet, thereby helping to enhance the reliability of microwave signal transmission and reduce switching losses, thereby helping to improve the overall performance of the switch.
[0015] Optionally, the side step is spaced apart from the inner wall of the outer shell.
[0016] By adopting the above technical solution, the side step is spaced apart from the inner wall of the shell, so that the side step will not directly contact the inner wall of the shell when overlapping with the conductive sheet, thereby reducing leakage and loss during signal transmission and improving the transmission efficiency and stability of microwave signals.
[0017] Optionally, the width of the side step is greater than the diameter of the conductor.
[0018] By adopting the above technical solution, the width of the side step is larger than the diameter of the conductor, so that the conductive sheet has a larger contact area when overlapping with the side step, thereby effectively reducing the contact resistance and signal loss, and improving the transmission efficiency of microwave signals. At the same time, the larger side step width helps to improve mechanical stability, prevent wear or deformation caused by long-term work from affecting the conductive performance, and ensure the reliability of the switch in long-term use.
[0019] Optionally, a plurality of arc-shaped grooves are formed on the inner wall of the shell, and adjacent arc-shaped grooves are symmetrically arranged along the conductive sheet and are coaxial with the push rod.
[0020] By adopting the above technical solution, adjacent arc-shaped grooves are symmetrically arranged so that an arc-shaped space can be formed between adjacent arc-shaped grooves, which helps to achieve better impedance matching, thereby reducing reflection and loss of microwave signals during transmission, and further helps to achieve the purpose of microwave performance compensation.
[0021] Optionally, a plurality of guide posts are provided on the conductive sheet, the axes of the guide posts are parallel to the axis of the push rod, and one end of the guide posts away from the conductive sheet is slidably connected to the housing.
[0022] By adopting the above technical solution, the guide column is slidably connected to the shell, so that the guide column can provide support and guidance for the conductive sheet, so that the conductive sheet can move more smoothly, thereby helping to improve the stability and positioning accuracy of the conductive sheet during movement, and further helping to improve the reliability and stability of the switch operation.
[0023] Optionally, the conductive sheet is a reed.
[0024] By adopting the above technical solution, the conductive sheet is designed in the form of a reed, so that the conductive sheet has a certain elasticity and can better contact with the port under force, thereby ensuring good electrical connection performance. At the same time, the reed structure has better fatigue life and stability during repeated movement, reduces the variation of contact resistance, and improves the reliability of the switch. In addition, the design of the reed is also conducive to simplifying the production process, reducing costs, and thus improving overall manufacturing efficiency.
[0025] In summary, the present application includes at least one of the following beneficial technical effects: 1. By laying four conductive sheets flat in the housing, it is convenient to use the conductive sheets to realize the connection or disconnection between different ports, so as to facilitate the switching of microwave signals between the four ports. On the other hand, the space occupied by the conductive sheets and the push rod is reduced, which is conducive to reducing the overall volume of the switch, so that the switch can be applied to application scenarios with limited space; 2. By setting chamfers on the conductive sheets, when adjacent conductive sheets are overlapped with the same port, the chamfered sides of the adjacent conductive sheets can better fit and contact each other, thereby increasing the contact area between the adjacent conductive sheets, thereby helping to reduce contact resistance, improve signal transmission efficiency, and reduce losses during signal transmission, thereby improving the overall working performance of the switch; 3. The corners of the conductive sheet are chamfered or rounded to reduce the reflection of microwave signals at the corners of the conductive sheet, thereby reducing the energy loss during microwave signal transmission, achieving the purpose of microwave performance compensation, and further improving the microwave transmission efficiency of the overall switch; 4. By setting side steps on the conductor and overlapping the side steps with the conductive sheet, the overlapping area and stability between the conductive sheet can be effectively improved, so as to enhance the reliability of microwave signal transmission and reduce switching losses, which is beneficial to improving the overall performance of the switch. BRIEF DESCRIPTION OF THE DRAWINGS
[0026] Figure 1 It is a schematic diagram of the overall structure of a double-pole double-throw switch with a microwave port flat layout in an embodiment of the present application.
[0027] Figure 2 It is a schematic diagram of the internal structure of a double-pole double-throw switch with a microwave port flat layout in an embodiment of the present application.
[0028] Figure 3 is along Figure 2 Partial structural cross-sectional view along line AA.
[0029] Figure 4 This is a schematic diagram of the internal structure of a double-pole double-throw switch with a microwave port flat layout from another perspective in an embodiment of the present application.
[0030] Figure 5 is along Figure 2 Schematic diagram of part of the structure of the BB line.
[0031] Description of reference numerals: 1. Shell; 11. Arc-shaped groove; 2. Port; 21. Conductor; 211. Side step; 3. Conductive sheet; 31. Chamfer; 32. First conductive sheet; 33. Second conductive sheet; 34. Chamfer; 35. Guide column; 4. Push rod. DETAILED DESCRIPTION
[0032] The following is combined with Figure 1-5 This application is described in further detail.
[0033] The embodiment of the present application discloses a double-pole double-throw switch with a microwave port flat layout.
[0034] It should be noted that, in the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicating orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.
[0035] Reference Figure 1 and Figure 2 The microwave port flat layout double-pole double-throw switch includes a shell 1, on which four ports 2 are arranged, and the four ports 2 are distributed in a rectangular shape. A conductive sheet 3 is arranged between adjacent ports 2, and a push rod 4 is installed on each conductive sheet 3. The conductive sheet 3 and the push rod 4 are respectively slidably arranged in the shell 1, and the push rod 4 can drive the conductive sheet 3 to move so that the conductive sheet 3 overlaps with the corresponding two ports 2, thereby achieving the effect of reducing the switch volume and reducing the switch loss.
[0036] Reference Figure 2 and Figure 3 A conductor 21 is coaxially connected in the port 2. One end of the conductor 21 extends into the housing 1 and is integrally formed with a side step 211. The upper and lower surfaces of the side step 211 are parallel to the conductive sheet 3, and the side step 211 is used to overlap the conductive sheet 3.
[0037] Reference Figure 3 and Figure 4 In this embodiment, the side step 211 is spaced apart from the inner wall of the shell 1 so that the side step 211 does not directly contact the inner wall of the shell 1 when overlapping with the conductive sheet 3, thereby reducing leakage and loss during signal transmission and improving the transmission efficiency and stability of microwave signals.
[0038] Reference Figure 3 The width of the side step 211 is greater than the diameter of the conductor 21, so that the conductive sheet 3 has a larger contact area when overlapping with the side step 211, which effectively reduces the contact resistance and signal loss, and improves the transmission efficiency of the microwave signal. At the same time, the larger width of the side step 211 helps to improve the mechanical stability, prevent wear or deformation caused by long-term work from affecting the conductive performance, and ensure the reliability of the switch in long-term use.
[0039] Reference Figure 2 and Figure 5 When different ports 2 need to be turned on, the push rod 4 drives the conductive sheet 3 to move so that the conductive sheet 3 overlaps with the side step 211, thereby facilitating the conduction of different ports 2. When the conductive sheet 3 overlaps with the side step 211, adjacent conductive sheets 3 are located in the same plane, so that the four conductive sheets 3 can be laid flat in the housing 1, and then the space required for the conductive sheet 3 and the port 2 is reduced by arranging the four conductive sheets 3 flatly and designing the rectangular distribution of the ports 2, so as to reduce the overall volume of the switch, so that the switch can be suitable for application scenarios with limited space.
[0040] It should be noted that in the embodiment of the present application, the push rod 4 is driven to move by controlling the attraction and release of the electromagnet (not shown in the figure). As for how to specifically set the electromagnet, it is a conventional technical means for those skilled in the art, so it will not be elaborated in this application.
[0041] Reference Figure 2 The conductive sheet 3 is rectangular in design, and the push rod 4 is located at the center of the conductive sheet 3, so that the conductive sheet 3 can be moved by the push rod 4. The length and diameter of the push rod 4 can be determined according to actual needs to ensure that the push rod 4 will not be deformed due to long-term use.
[0042] Reference Figure 3 In this embodiment, the conductive sheet 3 is a reed sheet, so that the conductive sheet 3 has a certain elasticity, and can better contact with the side step 211 under the action of force, thereby ensuring good electrical connection performance. At the same time, the reed sheet structure has better fatigue life and stability during repeated movement, reduces the variation of contact resistance, and improves the reliability of the switch. In addition, the design of the reed sheet is also conducive to simplifying the production process, reducing costs, and thus improving the overall manufacturing efficiency.
[0043] Reference Figure 2 and Figure 3 Chamfers 31 are respectively provided at both ends of the conductive sheet 3. When the side steps 211 on the adjacent conductive sheets 3 overlap with the same port 2, the sides of the adjacent conductive sheets 3 provided with the chamfers 31 contact each other, which is beneficial to increase the contact area between the adjacent conductive sheets 3, so as to reduce the contact resistance, improve the signal transmission efficiency, and reduce the loss in the signal transmission process, thereby facilitating the improvement of the overall working performance of the switch.
[0044] Reference Figure 2The four ports 2 are arranged in pairs, and the two groups of ports 2 are arranged opposite to each other. The conductive sheet 3 between the two ports 2 in the same group is defined as the first conductive sheet 32, and the conductive sheet 3 between the two opposite ports 2 in different groups is defined as the second conductive sheet 33. The chamfer 31 of the first conductive sheet 32 is larger than the chamfer 31 of the second conductive sheet 33, so that when switching different ports 2, the contact between the conductive sheets 3 is smoother, reducing the friction loss generated during the switching process. At the same time, the larger chamfer 31 is conducive to the electromagnetic field matching during microwave signal transmission, thereby reducing the reflection loss of the signal during transmission and improving the overall performance and stability of the switch.
[0045] Reference Figure 2 , the corners of the conductive sheet 3 are provided with chamfers 31 or rounded corners 34. In this embodiment, the corners of the conductive sheet 3 are provided with rounded corners 34, which helps to reduce the discontinuity encountered by the microwave signal during the transmission process, so as to reduce the reflection and scattering of the microwave signal at the corners of the conductive sheet 3, improve the signal transmission quality, and further facilitate the purpose of microwave performance compensation.
[0046] Reference Figure 3 A plurality of guide posts 35 are fixedly connected to the conductive sheet 3, the axis of the guide posts 35 is parallel to the axis of the push rod 4, and one end of the guide posts 35 away from the conductive sheet 3 is slidably connected to the housing 1. In this embodiment, two guide posts 35 are provided, and the two guide posts 35 are symmetrically arranged on both sides of the push rod 4, so that the guide posts 35 are conveniently used to provide support and guidance for the conductive sheet 3, so that the conductive sheet 3 is smoother during the movement process, which helps to improve the stability and positioning accuracy of the conductive sheet 3 during the movement process, and further helps to improve the reliability and stability of the switch operation.
[0047] Reference Figure 2 The shell 1 can be made of high-strength plastic, and a plurality of arc-shaped grooves 11 are provided on the inner wall of the shell 1. Adjacent arc-shaped grooves 11 are symmetrically arranged along the conductive sheet 3 and are coaxial with the push rod 4, so that an arc-shaped space can be formed between adjacent arc-shaped grooves 11, thereby helping to achieve better impedance matching, so as to reduce the reflection and loss of microwave signals during transmission, and further helping to achieve the purpose of microwave performance compensation.
[0048] The implementation principle of a microwave port flat layout double-pole double-throw switch in the embodiment of the present application is: by adopting a flat layout design, the overall volume of the switch can be effectively reduced. At the same time, through the design and optimization of the conductive sheet 3, especially the use of a large-area forward coverage overlap and an orthogonal side overlap method, and combined with the microwave compensation chamfer 31 design, the switch can significantly reduce signal loss during high-frequency signal transmission. In addition, through a flat layout method and performance compensation optimization of the connection structure between the coaxial inner conductor 21 and the conductive sheet 3, signal reflection is further reduced and transmission efficiency is improved. These designs and optimizations jointly improve the overall performance of the switch and meet the requirements of modern communication systems for miniaturization and low loss of microwave port double-pole double-throw switches.
[0049] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.
Claims
1. A microwave port flat layout double-pole double-throw switch, characterized in that: The invention comprises a shell (1), wherein the shell (1) is provided with four ports (2), wherein the four ports (2) are distributed in a rectangular shape, and conductive sheets (3) are provided between adjacent ports (2). A push rod (4) is provided on each conductive sheet (3), wherein the conductive sheet (3) and the push rod (4) are respectively slidably arranged in the shell (1), and the push rod (4) can drive the conductive sheet (3) to move so that the conductive sheet (3) overlaps with two corresponding ports (2).
2. The microwave port flat layout double-pole double-throw switch according to claim 1, characterized in that: Chamfers (31) are respectively provided at both ends of the conductive sheet (3); when adjacent conductive sheets (3) are overlapped with the same port (2), the surfaces of the adjacent conductive sheets (3) provided with the chamfers (31) are in contact with each other.
3. The microwave port flat layout double-pole double-throw switch according to claim 2, characterized in that: The four ports (2) are arranged in pairs, and the two groups of ports (2) are arranged opposite to each other. The conductive sheet (3) between two ports (2) in the same group is defined as a first conductive sheet (32), and the conductive sheet (3) between two opposite ports (2) in different groups is defined as a second conductive sheet (33). The chamfer (31) of the first conductive sheet (32) is greater than the chamfer (31) of the second conductive sheet (33).
4. The microwave port flat layout double-pole double-throw switch according to claim 2, characterized in that: The corners of the conductive sheet (3) are provided with chamfers (31) or rounded corners (34).
5. The microwave port flat layout double-pole double-throw switch according to claim 1, characterized in that: A conductor (21) is coaxially arranged in the port (2), one end of the conductor (21) extends into the housing (1) and is provided with a side step (211), the side step (211) being used for overlapping with the conductive sheet (3).
6. The microwave port flat layout double-pole double-throw switch according to claim 5, characterized in that: The side step (211) is spaced apart from the inner wall of the outer shell (1).
7. The microwave port flat layout double-pole double-throw switch according to claim 5, characterized in that: The width of the side step (211) is greater than the diameter of the conductor (21).
8. The microwave port flat layout double-pole double-throw switch according to claim 1, characterized in that: A plurality of arc-shaped grooves (11) are provided on the inner wall of the housing (1), and adjacent arc-shaped grooves (11) are symmetrically arranged along the conductive sheet (3) and are coaxial with the push rod (4).
9. The microwave port flat layout double-pole double-throw switch according to claim 1, characterized in that: A plurality of guide posts (35) are provided on the conductive sheet (3), the axes of the guide posts (35) are parallel to the axis of the push rod (4), and one end of the guide posts (35) away from the conductive sheet (3) is slidably connected to the housing (1).
10. The microwave port flat layout double-pole double-throw switch according to claim 1, characterized in that: The conductive sheet (3) is a spring sheet.