Switching matrix based on multi-port coaxial switch
By employing a multi-port coaxial switch switching matrix, utilizing five nine-port coaxial switches and a controller, the problems of large size and heavy weight of traditional switching matrices are solved, achieving a smaller matrix size and lower production cost, while maintaining high-frequency power capacity, making it suitable for radio frequency and wireless transmission systems.
Patent Information
- Application Number
- CN202423195750.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-24
- Publication Date
- 2026-02-13
- Estimated Expiration
- 2034-12-24
AI Technical Summary
In the existing technology, the switching matrix based on traditional double-pole double-throw coaxial switches is large in size and heavy in weight, difficult to maintain, and has a large number of switches, resulting in high production costs.
A switching matrix based on multi-port coaxial switches is adopted, which utilizes five coaxial switches, each with nine ports. The switching is controlled by a controller, reducing the number of coaxial switches, resulting in a smaller matrix size and weight, and lower production costs.
It achieves a reduction in matrix size and weight, lowering production costs, while maintaining high-frequency power capacity, making it suitable for radio frequency and wireless transmission systems.
Smart Images
Figure CN223911839U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a switching matrix based on multiport coaxial switch. BACKGROUND
[0002] Radio frequency switch is a common device in radio frequency and wireless transmission system, and has important application in basic scientific research, nuclear physics, military, agriculture, medical treatment, communication, electronic countermeasure, broadcasting and television and the like. Its main function is to complete the switching of microwave signal or microwave power transmission path. A plurality of radio frequency switches can constitute a switching matrix, and the switching operation and control of the plurality of radio frequency switches can realize the switching function of the switching matrix. According to needs, the switching matrix can contain a plurality of radio frequency switches, and the matrix can realize very responsible switching connection function.
[0003] Radio frequency switching switch includes various structural modes, and common ones are mechanical switching switch, diode switch and relay switch. Radio frequency switches of different structures have respective characteristics and can be applied in different radio frequency systems. The switching speed of diode switch and relay switch is faster, and the switching time can reach dozens of microseconds or even shorter, but the high-frequency power capacity of the two structural switches is limited, and the high-frequency power capacity of relay switch is generally several kW, and the maximum power that can be borne by diode switch is only dozens of W. Compared with diode switch and relay switch, the switching speed of mechanical switching switch is slower, and the time for completing one switching is generally in the range of hundreds of milliseconds to tens of seconds, but the mechanical switching switch has greater high-frequency power capacity, and the power level of radio frequency mechanical switching switch can reach hundreds of kilowatts or even megawatts according to needs. According to different interface specifications, radio frequency mechanical switching switch can be divided into coaxial switch, waveguide switch and other radio frequency mechanical switches.
[0004] If the most traditional double-pole double-throw coaxial switch is used to constitute the switching matrix of the above function, 12 coaxial switches are needed to be connected with each other in the whole matrix. The size of the whole matrix is about 1500*1550*635mm, and the weight exceeds 2500kg. The switching matrix realized by the technical scheme has the problems of large number of coaxial switches, large volume of the whole matrix, heavy weight and difficult maintenance. INVENTION CONTENTS
[0005] The utility model discloses a switching matrix based on multiport coaxial switch.
[0006] A switching matrix based on multi-port coaxial switch, comprising a coaxial switch matrix, a controller, the coaxial switch matrix comprising a plurality of coaxial switches, a plurality of output antennas, a plurality of power sources, a dummy load, a diplexer, a multi-path power combiner; the coaxial switch is used to connect each component, each coaxial switch comprises nine ports, and each port inside the coaxial switch can be connected arbitrarily through the switching of the coaxial switch; the power source can be output from any output antenna or dummy load through the coaxial switch; the diplexer is used to receive two different frequency power sources and output to any output antenna or dummy load; the multi-path power combiner is used to receive and combine a plurality of same frequency power sources and output to a specific output antenna or dummy load; the controller is used to control the coaxial switch to switch.
[0007] Further, the number of coaxial switches is five, which are a first coaxial switch, a second coaxial switch, a third coaxial switch, a fourth coaxial switch and a fifth coaxial switch, and each coaxial switch comprises a port one, a port two, a port three, a port four, a port five, a port six, a port seven, a port eight and a port nine, and at least two ports of each coaxial switch are connected with the ports of the adjacent coaxial switch, and at least one port is connected with the power combiner.
[0008] Further, the coaxial switches are connected as follows:
[0009] The first coaxial switch: the port one is connected with the power input end, the port two is connected with the power output end, the port five is connected with the first power combiner, the port seven is connected with the second power combiner, the port eight is connected with the port four of the second coaxial switch, and the port nine is connected with the port three of the second coaxial switch;
[0010] The second coaxial switch: the port one is connected with the power input end, the port two is connected with the power output end, the port five is connected with the first power combiner, the port seven is connected with the second power combiner, the port eight is connected with the port four of the third coaxial switch, and the port nine is connected with the port three of the third coaxial switch;
[0011] The third coaxial switch: the port one is connected with the power input end, the port two is connected with the power output end, the port seven is connected with the second power combiner, the port eight is connected with the port five of the fourth coaxial switch, and the port nine is connected with the port four of the fourth coaxial switch;
[0012] The fourth coaxial switch: the port one is connected with the power input end, the port two is connected with the power output end, the port seven is connected with the second power combiner, the port eight is connected with the port four of the fifth coaxial switch, and the port nine is connected with the port three of the fifth coaxial switch;
[0013] The fifth coaxial switch: the port two and the port six are respectively connected with a power output end.
[0014] Further, the power output end and the power input end connected with the first coaxial switch, the second coaxial switch, the third coaxial switch and the fourth coaxial switch are 5kw output antennas and 5kw power sources.
[0015] Further, the power output end connected with the fifth coaxial switch is a 20kw antenna and a 50kw load.
[0016] Further, the first power combiner is a 2*5kw duplexer.
[0017] Further, the second power combiner and the 4*5kw power combiner.
[0018] Further, the controller comprises a shell, a communication relay board, a plurality of double-way coaxial switch control boards, an indicator light display board and a switching power supply module; the communication relay board is used for receiving data sent by a user, and simultaneously collecting and feeding back state data of the coaxial switch to the user in a time manner; the indicator light display board comprises a plurality of display lights, and each coaxial switch corresponds to nine display lights.
[0019] Further, the coaxial switch, the duplexer, the multi-way power combiner, the power output end and the power input end are connected through hard feed lines, and the coaxial switch comprises a motor cover, a microwave cavity and nine EIA 15 / 8 ports; the motor cover is provided with a manual switching knob; and the microwave cavity is provided with a plug-in connector and an indicator light.
[0020] Further, the shell is provided with a power supply indicator light, a mode switching knob and a plurality of electric switching switch groups; the number of the electric switching switch groups is consistent with the number of the coaxial switches; the electric switching switch groups are used for switching between internal connection states of the coaxial switches in an electric mode; each electric switching switch group is provided with nine button switches and is provided with an indicator light.
[0021] The controller shell is provided with a plurality of connection ends for connecting elements; the connection ends comprise an RJ45 Ethernet interface, an RS-485 serial port interface, a plurality of wall-plug type wiring terminals, a plurality of four-core plug-in connectors, a plurality of sixteen-core plug-in connectors and a power socket; the wall-plug type wiring terminals are used for interlocking the two connection states of the coaxial switches; the four-core plug-in connectors are used for providing power supply for the coaxial switches; and the sixteen-core plug-in connectors are used for two connection state to position signals and to position indicator lights of the coaxial switches.
[0022] Beneficial effects: compared with the prior art, the coaxial switch with nine ports can greatly reduce the number of coaxial switches in the matrix, thereby reducing the volume and weight of the entire matrix and reducing the production cost. BRIEF DESCRIPTION OF DRAWINGS
[0023] Figure 1 is a schematic view of a coaxial switch matrix;
[0024] Figure 2 is a schematic view of the controller from another angle;
[0025] Figure 3 is a schematic view of the controller from another angle;
[0026] Figure 4 is a working state schematic diagram of the first coaxial switch matrix;
[0027] Figure 5 is a working state schematic diagram of the second coaxial switch matrix;
[0028] Figure 6 is a working state schematic diagram of the third coaxial switch matrix;
[0029] Figure 7 is a working state schematic diagram of the fourth coaxial switch matrix;
[0030] Figure 8 is a working state schematic diagram of the fifth coaxial switch matrix;
[0031] Figure 9 is a working state schematic diagram of the sixth coaxial switch matrix;
[0032] Figure 10 is a working state schematic diagram of the seventh coaxial switch matrix;
[0033] In the figure, 1 is a coaxial switch matrix, 2 is a hard feeder, 3 is a button combination, 4 is a signal lamp, 5 is a mode switching knob, 6 is an RJ45 Ethernet interface, 7 is an RS-485 serial port, 8 is a wiring terminal, 9 is a navigation plug, 10 is a power socket, 11 is a first coaxial switch, 12 is a second coaxial switch, 13 is a third coaxial switch, 14 is a fourth coaxial switch, and 15 is a fifth coaxial switch. DETAILED DESCRIPTION
[0034] In order to deepen the understanding of the utility model, the utility model will be further described in combination with examples and drawings below, and the examples are only used to explain the utility model and do not constitute a limitation on the protection scope of the utility model.
[0035] As shown in Figures 1-10 , the coaxial switch matrix 1, the hard feeder 2, the button combination 3, the signal lamp 4, the mode switching knob 5, the RJ45 Ethernet interface 6, the RS-485 serial port 7, the wiring terminal 8, the navigation plug 9, the power socket 10, the first coaxial switch 11, the second coaxial switch 12, the third coaxial switch 13, the fourth coaxial switch 14, and the fifth coaxial switch 15;
[0036] A switching matrix based on multi-port coaxial switch, comprising a coaxial switch matrix, a controller, the coaxial switch matrix comprising a plurality of coaxial switches, a plurality of output antennas, a plurality of power sources, a dummy load, a diplexer, a multi-path power combiner; the coaxial switch is used to connect each component, each coaxial switch comprises nine ports, and each port inside the coaxial switch can be connected arbitrarily through the switching of the coaxial switch; the power source can be output from any output antenna or dummy load through the coaxial switch; the diplexer is used to receive two different frequency power sources and output to any output antenna or dummy load; the multi-path power combiner is used to receive and combine a plurality of same frequency power sources and output to a specific output antenna or dummy load; the controller is used to control the coaxial switch to switch.
[0037] In this embodiment, the number of coaxial switches is five, which are respectively a first coaxial switch 11, a second coaxial switch 12, a third coaxial switch 13, a fourth coaxial switch 14 and a fifth coaxial switch 15, and each coaxial switch comprises a port one, a port two, a port three, a port four, a port five, a port six, a port seven, a port eight and a port nine. Each coaxial switch has at least two ports connected with the ports of the adjacent coaxial switch, and at least one port connected with the power combiner.
[0038] In this embodiment, the coaxial switches are connected as follows:
[0039] The first coaxial switch 11: the port one is connected with the power input end, the port two is connected with the power output end, the port five is connected with the first power combiner, the port seven is connected with the second power combiner, the port eight is connected with the port four of the second coaxial switch 12, and the port nine is connected with the port three of the second coaxial switch 12.
[0040] The second coaxial switch 12: the port one is connected with the power input end, the port two is connected with the power output end, the port five is connected with the first power combiner, the port seven is connected with the second power combiner, the port eight is connected with the port four of the third coaxial switch 13, and the port nine is connected with the port three of the third coaxial switch 13.
[0041] The third coaxial switch 13: the port one is connected with the power input end, the port two is connected with the power output end, the port seven is connected with the second power combiner, the port eight is connected with the port five of the fourth coaxial switch 14, and the port nine is connected with the port four of the fourth coaxial switch 14.
[0042] The fourth coaxial switch 14: the port one is connected with the power input end, the port two is connected with the power output end, the port seven is connected with the second power combiner, the port eight is connected with the port four of the fifth coaxial switch 15, and the port nine is connected with the port three of the fifth coaxial switch 15.
[0043] The fifth coaxial switch 15: port two and port six are connected with a power output terminal respectively, and port six is connected with a second power combiner.
[0044] In the embodiment, the power output terminals and the power input terminals connected with the first coaxial switch 11, the second coaxial switch 12, the third coaxial switch 13 and the fourth coaxial switch 14 are 5kw output antennas and 5kw power sources respectively.
[0045] In the embodiment, the power output terminals connected with the fifth coaxial switch 15 are 20kw antennas and 50kw loads.
[0046] In the embodiment, the first power combiner is a 2×5kw duplexer.
[0047] In the embodiment, the second power combiner is a 4×5kw power combiner.
[0048] It should be noted that different output modes can be realized according to different connection states of the internal ports of the coaxial switch, and each power source can be output from any output antenna or load or can be output from any output antenna or load through the power combiner; Figures 1-7 The connection output principle diagram of the coaxial switch matrix in different states is shown in the figure, wherein the port at the 12 o'clock position is port one, and ports two, three, four, five, six, seven, eight and nine are arranged in the counterclockwise direction based on port one.
[0049] As shown in the figure, the 5kw power sources connected with the first coaxial switch 11, the second coaxial switch 12, the third coaxial switch 13 and the fourth coaxial switch 14 are all transmitted internally to the 5kw antenna output;
[0050] As shown in the figure, the 5kw power sources connected with the first coaxial switch 11, the second coaxial switch 12, the third coaxial switch 13 and the fourth coaxial switch 14 are all transmitted internally to the 5kw antenna output; Figure 5 As shown in the figure, the 5kw power sources connected with the first coaxial switch 11, the second coaxial switch 12, the third coaxial switch 13 and the fourth coaxial switch 14 are all transmitted internally to the 5kw antenna output;
[0051] Figure 6 As shown in the figure, the 5kw power sources connected with the first coaxial switch 11, the second coaxial switch 12, the third coaxial switch 13 and the fourth coaxial switch 14 are all transmitted internally to the 5kw antenna output;
[0052] As shown in the figure, the 5kw power sources connected with the first coaxial switch 11, the second coaxial switch 12, the third coaxial switch 13 and the fourth coaxial switch 14 are all transmitted internally to the 5kw antenna output; Figure 7 As shown in the figure, the 5kw power sources connected with the first coaxial switch 11, the second coaxial switch 12, the third coaxial switch 13 and the fourth coaxial switch 14 are all transmitted internally to the 5kw antenna output;
[0053] As shown in Figure 8 , the 5kw power source connected with the first coaxial switch 11 and the second coaxial switch 12 is output from the 20kw antenna of the fifth coaxial switch 15 through the 2×5kw power combiner;
[0054] As shown in Figure 9 , the 5kw power source connected with the first coaxial switch 11, the second coaxial switch 12, the third coaxial switch 13 and the fourth coaxial switch 14 is output from the 20kw antenna of the fifth coaxial switch 15 through the 4×5kw power combiner;
[0055] As shown in Figure 10 , the 5kw power source connected with the first coaxial switch 11, the second coaxial switch 12, the third coaxial switch 13 and the fourth coaxial switch 14 is output from the 50kw load of the fifth coaxial switch 15 through the 4×5kw power combiner.
[0056] In the embodiment, each coaxial switch comprises a motor cover and a microwave cavity, the motor cover is connected with the microwave cavity, and the microwave cavity is used for mounting the coaxial switch.
[0057] In the embodiment, the coaxial switches are mounted in the box, and the coaxial switches, the first power combiner, the second power combiner, the power output end and the power input end are connected through the hard feeder 2.
[0058] In the embodiment, the coaxial switch matrix further comprises a controller, the front end surface of the controller is provided with a control panel, the control panel is provided with a button combination 3 for controlling the internal connection of the coaxial switch, a signal lamp 4, a mode switching knob 5, and the rear end surface of the controller is provided with a power socket 10, a wiring terminal 8, an RJ45 Ethernet port 6, an RS-485 serial port 7, a navigation plug 9 and a power socket 10.
[0059] It should be noted that the controller internally has a communication relay board, five coaxial switch control boards and a power module. The communication relay board is used for receiving the data issued by the user and uploading the in-place state of the coaxial switch. After receiving the command issued by the user remotely, the communication relay board analyzes and controls the five coaxial switch control boards according to the command. The communication relay board collects the state of the five sets of coaxial switch control boards at regular intervals and feeds back the state data to the user end.
[0060] The coaxial switch control board is used for controlling the switching of each coaxial switch, and the five sets of coaxial switch control boards are connected through the RS485 serial port and connected with the RS485-2 port of the communication relay board.
[0061] The above merely describes preferred embodiments of the present application and is not intended to limit the present application, and 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 switching matrix based on a multiport coaxial switch, characterized in that, The coaxial switch matrix includes a plurality of coaxial switches, a plurality of output antennas, a plurality of power sources, a dummy load, a diplexer, and a multi-path power combiner.
2. A switching matrix based on multiport coaxial switches according to claim 1, characterized in that, The number of coaxial switches is five, including a first coaxial switch, a second coaxial switch, a third coaxial switch, a fourth coaxial switch, and a fifth coaxial switch.
3. A switching matrix based on multiport coaxial switches according to claim 2, characterized in that, The first coaxial switch is connected to a power input terminal through port one, connected to a power output terminal through port two, connected to a first power combiner through port five, connected to a second power combiner through port seven, connected to port four of the second coaxial switch through port eight, and connected to port three of the second coaxial switch through port nine. The second coaxial switch is connected to the power input terminal through port one, connected to the power output terminal through port two, connected to the first power combiner through port five, connected to the second power combiner through port seven, connected to port four of the third coaxial switch through port eight, and connected to port three of the third coaxial switch through port nine. The third coaxial switch is connected to the power input terminal through port one, connected to the power output terminal through port two, connected to the second power combiner through port seven, connected to port five of the fourth coaxial switch through port eight, and connected to port four of the fourth coaxial switch through port nine. The fourth coaxial switch is connected to the power input terminal through port one, connected to the power output terminal through port two, connected to the second power combiner through port seven, connected to port four of the fifth coaxial switch through port eight, and connected to port three of the fifth coaxial switch through port nine. The fifth coaxial switch is connected to a power output terminal through port two and port six, respectively, and connected to the second power combiner through port six. The power output terminal and the power input terminal connected to the first coaxial switch, the second coaxial switch, the third coaxial switch, and the fourth coaxial switch are 5kw output antennas and 5kw power sources, respectively.
4. A switching matrix based on multiport coaxial switches according to claim 3, characterized in that, The power output terminal connected to the fifth coaxial switch is a 20kw antenna and a 50kw load.
5. A switching matrix based on multiport coaxial switches according to claim 4, characterized in that, The first power combiner is a 2x5kw diplexer.
6. A switching matrix based on multiport coaxial switches according to claim 4, characterized in that, The second power combiner is a 4x5kw power combiner.
7. A switching matrix based on multiport coaxial switches according to claim 4, characterized in that, 8. A switching matrix based on multiport coaxial switches according to claim 1, characterized in that, The controller comprises a shell, a communication relay board, a plurality of double-way coaxial switch control boards, an indicator light display board and a switching power supply module; the communication relay board is used for receiving data sent by a user, collecting and feeding back state data of the coaxial switch to the user at a fixed time, and the indicator light display board comprises a plurality of display lights, and each coaxial switch corresponds to nine display lights.
9. A switching matrix based on multiport coaxial switches according to any of claims 1-8, characterized in that, The coaxial switch, the duplexer, the multi-way power combiner, the power output end and the power input end are connected through hard feed lines, the coaxial switch comprises a motor cover, a microwave cavity and nine EIA 15 / 8 ports, the motor cover is provided with a manual switching knob, and the microwave cavity is provided with a plug-in connector and an indicator light.
10. A switching matrix based on multiport coaxial switches according to claim 8, characterized in that, The shell is provided with a power indicator light, a mode switching knob and a plurality of electric switching switch groups, the number of the electric switching switch groups is consistent with the number of the coaxial switches, the electric switching switch groups are used for switching between internal connection states of the coaxial switches in the electric mode, each electric switching switch group is provided with nine button switches and self-provided indicator lights, The controller shell is provided with a plurality of connection ends for connecting elements, the connection ends comprise an RJ45 Ethernet interface, an RS-485 serial port interface, a plurality of wall-plug type terminal blocks, a plurality of four-core plug-in connectors, a plurality of sixteen-core plug-in connectors and a power socket, the wall-plug type terminal blocks are used for interlocking of the two connection states of the coaxial switch, the four-core plug-in connectors are used for providing power supply for the coaxial switch, and the sixteen-core plug-in connectors are used for in-place signals and in-place indicator lights of the two connection states of the coaxial switch.