CN113904736B - Multichannel radio frequency signal routing device - Google Patents
Multichannel radio frequency signal routing device Download PDFInfo
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- CN113904736B CN113904736B CN202111097778.5A CN202111097778A CN113904736B CN 113904736 B CN113904736 B CN 113904736B CN 202111097778 A CN202111097778 A CN 202111097778A CN 113904736 B CN113904736 B CN 113904736B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
Abstract
The invention discloses a multichannel radio frequency signal routing device which comprises a cabinet body, a radio frequency switching array surface, a routing public port, a triaxial truss module and a control module, wherein the radio frequency switching array surface is arranged on a front panel of the cabinet body, the routing public port is arranged on a rear panel of the cabinet body, and the triaxial truss module is positioned in a cavity of the cabinet body and is arranged on the front panel; the radio frequency transfer array surface is formed by a plurality of BMA/SMA radio frequency transfer connectors in parallel, the array surface end is SMA, and the inner side end of the cabinet is a BMA type quick connector; the triaxial truss module is configured to realize position adjustment of a radio frequency plug-in device arranged at the tail end, the tail end of the radio frequency plug-in device is provided with a radio frequency clamp with a groove, the groove of the radio frequency clamp is configured to be used for placing a BMA connector to be processed, and the BMA connector is connected with a routing public port through a radio frequency cable; the control module is configured to perform control of the tri-axial truss module. The automatic testing device solves the problems of automatic testing and remote testing of the consistency of the array product web.
Description
Technical Field
The invention belongs to the field of radio frequency signal testing, and particularly relates to radio frequency channel routing equipment with the advantages of expandable channel number, small influence on radio frequency signals and networked control.
Background
The traditional radio frequency signal routing device is generally realized by adopting a mode of a radio frequency switch and a TTL level control circuit, and the method has the following defects:
1) The radio frequency switch is an electromechanical relay switch or a solid-state switch, the number of the radio frequency switch is less than 20, the switch of the array radio frequency channel is required to be cascaded, the cascaded switch matrix is high in price and poor in technical index, only index tests such as gain and flatness can be performed, the amplitude-phase consistency test index is often not satisfied, the signal routing can be completed only by manually plugging and unplugging the radio frequency connector, the operation is complex, the false detection rate is high, the test cost is increased, and the test efficiency is reduced.
2) The switch matrix needs to be realized by an independent level control circuit, the volume and the cost of a test system are increased, the maintainability is poor, and the switch matrix is not suitable for remote control channel switching.
Disclosure of Invention
The invention aims to overcome the defects of the prior art, provides a multichannel radio frequency signal routing device with low cost and convenient assembly and maintenance, and solves the problems of automatic testing and remote testing of the consistency of the array product amplitude and phase. By utilizing the multi-channel radio frequency signal routing device and matching with testing instruments such as a vector network analyzer, the full-automatic remote test can be carried out on various multi-channel radio frequency product parameters, and the multi-channel radio frequency signal routing device is widely applied to the production process of products, so that the production efficiency and the testing quality are greatly improved.
The aim of the invention is achieved by the following technical scheme:
the multi-channel radio frequency signal routing device comprises a cabinet body, a radio frequency switching array surface, a routing public port, a triaxial truss module and a control module, wherein the radio frequency switching array surface is arranged on a front panel of the cabinet body, the routing public port is arranged on a rear panel of the cabinet body, and the triaxial truss module is positioned in a cavity of the cabinet body and is arranged on the front panel; the radio frequency transfer array surface is formed by a plurality of BMA/SMA radio frequency transfer connectors in parallel, the array surface end is SMA, and the inner side end of the cabinet is a BMA type quick connector; the triaxial truss module is configured to realize position adjustment of a radio frequency pluggable device arranged at the tail end, the tail end of the radio frequency pluggable device is provided with a radio frequency clamp with a groove, the groove of the radio frequency clamp is configured to be used for placing a BMA connector to be processed, and the BMA connector is connected with a routing public port through a radio frequency cable; the control module is configured to perform control of the tri-axial truss module.
According to a preferred embodiment, the triaxial truss module further comprises an X-axis position adjustment unit, a Y-axis position adjustment unit and a Z-axis position adjustment unit, the X-axis position adjustment unit and the Y-axis position adjustment unit being configured for effecting a positional movement of the Z-axis position adjustment unit in a plane parallel to the front panel; the Z-axis position adjustment unit is configured to enable position adjustment of the radio frequency pluggable unit near or far from the front panel.
According to a preferred embodiment, a pressure sensor and a proximity switch are arranged in the groove of the radio frequency clamp.
According to a preferred embodiment, the rear panel of the cabinet body is further provided with a man-machine interaction unit, and the man-machine interaction unit is electrically connected with the control module.
According to a preferred embodiment, the control module is arranged inside the cabinet.
According to a preferred embodiment, the rear panel of the cabinet body is further provided with a program control interface, and the control module leads out a network port and a serial port through the program control interface on the rear panel and realizes external program control through calling of an API function of the upper computer.
According to a preferred embodiment, the main cabinet frame is of welded structure; and the two side sealing plates of the cabinet body are provided with heat dissipation air channels and are connected with the main frame of the cabinet body in a buckling locking mode.
According to a preferred embodiment, the rear panel of the cabinet body comprises a double door structure and a fixed plate structure.
According to a preferred embodiment, the programming interface is arranged on a fixed plate structure.
The foregoing inventive concepts and various further alternatives thereof may be freely combined to form multiple concepts, all of which are contemplated and claimed herein. Various combinations will be apparent to those skilled in the art from a review of the present disclosure, and are not intended to be exhaustive or all of the present disclosure.
The invention has the beneficial effects that:
the multi-channel radio frequency signal routing device has the advantages of multiple and expandable radio frequency channels, higher amplitude-phase consistency, low cost and convenient maintenance, is suitable for multi-channel testing of arrayed radio frequency products, and improves the testing efficiency and testing quality of related products in production and manufacture.
The multichannel radio frequency signal routing device adopts a cabinet type structure, and is convenient to move and simple to maintain. Through network port control, switching among any channels can be remotely carried out, and the degree of automation of radio frequency product index test is improved.
The structure of the multi-channel radio frequency signal routing device has great advantages in the aspect of channel expansion due to the design of electromechanical integration. By selecting a truss module with a large stroke and increasing the number of connectors on the radio frequency transfer array surface, more channels can be switched, and compared with the traditional switch cascading mode, the cost is greatly reduced.
The multi-channel radio frequency signal routing device structure simulates the operation mode of manual connector plugging by personnel by using an automatic mode, has small influence on radio frequency signals in the switching process, and avoids the problem that the conventional switch is difficult to meet the requirement of amplitude-phase consistency test due to test errors and test uncertainties introduced by cascading. The following is a partial index after multiple tests.
| Isolation of channel | ≥60dB |
| Inter-channel amplitude consistency | ≤±1dB |
| Inter-channel phase consistency | ≤±10° |
| Identical channel amplitude consistency | <.+ -. 0.8dB (300 times) |
| Identical channel phase consistency | < + -5 DEG (300 times) |
Drawings
FIG. 1 is a schematic front view of a cabinet of a multi-channel RF signal routing apparatus of the present invention;
FIG. 2 is a schematic rear view of a cabinet of the multi-channel RF signal routing apparatus of the present invention;
FIG. 3 is a schematic diagram of a triaxial truss module of the multi-channel RF signal routing device according to the present invention;
FIG. 4 is an internal top view block diagram of a multi-channel RF signal routing device of the present invention;
FIG. 5 is an internal side view block diagram of a multi-channel RF signal routing device of the present invention;
the system comprises a 1-radio frequency switching array surface, a 2-man-machine interaction unit and a 3-program control interface, wherein the 1-radio frequency switching array surface is provided with a first-program control interface; the system comprises a 4-double door structure, a 5-route public port, a 6-triaxial truss module, a 7-radio frequency clamp, an 8-BMA connector and a 9-control module.
Detailed Description
In the description of the present invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," "outer," and the like indicate orientations or positional relationships in which the inventive product is conventionally placed in use, and are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the apparatus or elements being referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance.
Furthermore, the terms "horizontal," "vertical," "overhang," and the like do not denote a requirement that the component be absolutely horizontal or overhang, but rather may be slightly inclined. As "horizontal" merely means that its direction is more horizontal than "vertical", and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the description of the present invention, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
Referring to fig. 1 to 5, the invention discloses a multi-channel radio frequency signal routing device, which comprises a cabinet body, a radio frequency transfer array surface 1, a routing public port 5, a triaxial truss module 6 and a control module 9.
Preferably, the main frame of the cabinet body is of a welding structure. And the two side sealing plates of the cabinet body are provided with heat dissipation air channels and are connected with the main frame of the cabinet body in a buckling locking mode.
Preferably, the control module 9 is configured to perform control of the tri-axial truss module 6. The control module 9 is arranged inside the cabinet body.
Preferably, a program control interface 3 is arranged on a rear panel of the cabinet body, and the control module 9 draws out a network port and a serial port through the program control interface 3 on the rear panel and realizes external program control through calling of an API function of the upper computer.
Preferably, the rear panel of the cabinet body is further provided with a man-machine interaction unit 2, and the man-machine interaction unit 2 is electrically connected with the control module 9.
Preferably, the rear panel of the cabinet body comprises a double door structure 4 and a fixed plate structure. The program control interface 3 is arranged on the fixed plate structure.
The cabinet adopts an integral welding scheme; the heat dissipation air duct is reserved on the two side sealing plates, and a buckle locking mode is adopted, so that the heat dissipation air duct is easy to detach and install, and convenient to maintain in the later period. The back adopts a four-section scheme, the upper and lower parts are double doors, the middle part is a fixed plate, and ports such as a net mouth, an interface and the like are arranged on the fixed plate. The lower part of the cabinet is provided with an installation space, so that the upper frame of the testing instrument is convenient to install. The cabinet is firm and reliable in whole and good in stability, and a stable supporting structure is provided for motor and other operations.
Preferably, the radio frequency transfer array surface 1 is arranged on a front panel of the cabinet body, the routing public port 5 is arranged on a rear panel of the cabinet body, and the triaxial truss module 6 is positioned in a cavity of the cabinet body and is arranged on the front panel.
Preferably, the radio frequency transfer array surface 1 is formed by a plurality of BMA/SMA radio frequency transfer connectors in parallel, the array surface end is SMA, and the inner side end of the cabinet is a BMA type quick connector. Namely, the BMA/SMA radio frequency adapter is an SMA interface at the outer side of the cabinet body, and a BMA interface at the inner side of the cabinet body.
Preferably, the triaxial truss module 6 is configured to implement position adjustment of a radio frequency plug provided at a terminal end, the terminal end of the radio frequency plug is provided with a radio frequency clamp 7 with a groove, the groove of the radio frequency clamp 7 is configured to place a BMA connector 8 to be processed, and the BMA connector 8 is connected with the routing public port 5 through a radio frequency cable.
Further, the triaxial truss module 6 further includes an X-axis position adjustment unit, a Y-axis position adjustment unit, and a Z-axis position adjustment unit. The X-axis position adjustment unit and the Y-axis position adjustment unit are configured to effect a positional movement of the Z-axis position adjustment unit on a plane parallel to the front panel. The Z-axis position adjustment unit is configured to enable position adjustment of the radio frequency pluggable unit near or far from the front panel. Thus, the BMA connector 8 to be processed is plugged and unplugged by the approaching or distant movement of the radio frequency plug-in device.
Furthermore, a pressure sensor and a proximity switch are arranged in the groove of the radio frequency clamp.
In the X-axis position adjusting unit, the Y-axis position adjusting unit and the Z-axis position adjusting unit, a sliding rail and a screw rod are arranged in each position adjusting unit, and the screw rod is driven by a direct current motor arranged at one end of the screw rod. The Z-axis screw is attached with a radio frequency plug, one side of the plug is provided with a radio frequency clamp with a groove, a BMA connector to be treated is placed in the groove of the clamp, the BMA connector is connected with a radio frequency cable, and the other side of the cable is connected with a routing public port 5 on the rear panel.
The screw rods of the X-axis position adjusting unit and the Y-axis position adjusting unit rotate to drive the radio frequency pluggable device to move in the specified displacement in the X-axis and Y-axis, the radio frequency pluggable device is selectively moved to a certain channel of the radio frequency transfer array surface 1, and then the motor in the Z-axis position adjusting unit drives the radio frequency pluggable device to move back and forth to perform the plugging and unplugging actions of the channel, so that the switching of different channels is realized.
The BMA connector to be processed is attached to the mounting flange and mounted in the rf plug recess. In order to ensure the accuracy of connector plugging and pulling and proper plugging force and avoid damaging the radio frequency connector, a pressure sensor and a proximity switch are arranged in a groove of the radio frequency clamp.
The multi-channel radio frequency signal routing device has the advantages of multiple and expandable radio frequency channels, higher amplitude-phase consistency, low cost and convenient maintenance, is suitable for multi-channel testing of arrayed radio frequency products, and improves the testing efficiency and testing quality of related products in production and manufacture.
The multichannel radio frequency signal routing device adopts a cabinet type structure, and is convenient to move and simple to maintain. Through network port control, switching among any channels can be remotely carried out, and the degree of automation of radio frequency product index test is improved.
The structure of the multi-channel radio frequency signal routing device has great advantages in the aspect of channel expansion due to the design of electromechanical integration. By selecting a truss module with a large stroke and increasing the number of connectors on the radio frequency transfer array surface, more channels can be switched, and compared with the traditional switch cascading mode, the cost is greatly reduced.
The multi-channel radio frequency signal routing device structure simulates the operation mode of manual connector plugging by personnel by using an automatic mode, has small influence on radio frequency signals in the switching process, and avoids the problem that the conventional switch is difficult to meet the requirement of amplitude-phase consistency test due to test errors and test uncertainties introduced by cascading. The following is a partial index after multiple tests.
| Isolation of channel | ≥60dB |
| Inter-channel amplitude consistency | ≤±1dB |
| Inter-channel phase consistency | ≤±10° |
| Identical channel amplitude consistency | <.+ -. 0.8dB (300 times) |
| Identical channel phase consistency | < + -5 DEG (300 times) |
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the invention.
Claims (8)
1. A multi-channel radio frequency signal routing device is characterized by comprising a cabinet body, a radio frequency switching array surface (1), a routing public port (5), a triaxial truss module (6) and a control module (9),
the radio frequency transfer array surface (1) is arranged on the outer side wall of the front panel of the cabinet body, the routing public port (5) is arranged on the rear panel of the cabinet body, and the triaxial truss module (6) is positioned in the cavity of the cabinet body and is arranged on the inner side wall of the front panel;
the radio frequency transfer array surface (1) is formed by a plurality of BMA/SMA radio frequency transfer connectors in parallel, the array surface end is SMA, and the inner side end of the cabinet body is a BMA type quick connector;
the triaxial truss module (6) is configured to realize position adjustment of a radio frequency plug-in device arranged at the tail end, a radio frequency clamp with a groove is arranged at the tail end of the radio frequency plug-in device, the groove of the radio frequency clamp is configured to be used for placing a BMA connector to be processed, and the BMA connector is connected with a routing public port (5) through a radio frequency cable;
the triaxial truss module (6) also comprises an X-axis position adjusting unit, a Y-axis position adjusting unit and a Z-axis position adjusting unit,
the X-axis position adjustment unit and the Y-axis position adjustment unit are configured to effect a positional movement of the Z-axis position adjustment unit on a plane parallel to the front panel;
the Z-axis position adjusting unit is configured to realize position adjustment of the radio frequency pluggable device, which is close to or far from the front panel;
the control module (9) is configured for performing control of a tri-axial truss module.
2. The multi-channel rf signal routing apparatus of claim 1, wherein a pressure sensor and a proximity switch are disposed within the recess of the rf clamp.
3. The multi-channel radio frequency signal routing device according to claim 1, wherein a man-machine interaction unit (2) is further arranged on the rear panel of the cabinet body, and the man-machine interaction unit (2) is electrically connected with the control module (9).
4. The multi-channel radio frequency signal routing device according to claim 1, characterized in that the control module (9) is arranged inside the cabinet.
5. The multi-channel radio frequency signal routing device according to claim 4, wherein the rear panel of the cabinet body is also provided with a program control interface (3),
the control module (9) leads out a network port and a serial port through a program control interface (3) on the rear panel, and realizes external program control through calling an API function of the upper computer.
6. The multi-channel radio frequency signal routing device of claim 1, wherein the cabinet main frame is a welded structure; and the two side sealing plates of the cabinet body are provided with heat dissipation air channels and are connected with the main frame of the cabinet body in a buckling locking mode.
7. The multi-channel rf signal routing apparatus of claim 5, wherein the rear panel of the cabinet includes a double door structure and a fixed plate structure.
8. The multi-channel radio frequency signal routing device according to claim 7, wherein the programming interface (3) is arranged on a fixed plate structure.
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| CN202111097778.5A CN113904736B (en) | 2021-09-18 | 2021-09-18 | Multichannel radio frequency signal routing device |
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| CN202111097778.5A CN113904736B (en) | 2021-09-18 | 2021-09-18 | Multichannel radio frequency signal routing device |
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| CN113904736B true CN113904736B (en) | 2023-05-23 |
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