CN219369972U - Debugging and testing tool for standing wave detection plate - Google Patents
Debugging and testing tool for standing wave detection plate Download PDFInfo
- Publication number
- CN219369972U CN219369972U CN202320059364.1U CN202320059364U CN219369972U CN 219369972 U CN219369972 U CN 219369972U CN 202320059364 U CN202320059364 U CN 202320059364U CN 219369972 U CN219369972 U CN 219369972U
- Authority
- CN
- China
- Prior art keywords
- unit
- switching
- power supply
- signal
- standing wave
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Tests Of Electronic Circuits (AREA)
Abstract
The application is applicable to the technical field of communication, and provides a debugging and testing tool of a standing wave detection board, which comprises a power supply unit, a switching control unit and a digital interface unit; the first output end of the power supply unit is connected with the first power end of the switching control unit and the power end of the digital interface unit, the second output end of the power supply unit is connected with the second power end of the switching control unit, and the power supply unit is used for supplying power to the switching control unit and outputting a direct current power supply signal to the digital interface unit; the output end of the switching control unit is connected with the switch control end of the digital interface unit, and the switching control unit is used for inputting a switch switching instruction by a user and outputting a switching control signal corresponding to the switch switching instruction to the digital interface unit; the digital interface unit is matched with the digital interface on the standing wave detection board, and is used for transmitting a direct-current power supply signal and a switching control signal to the digital interface after being in butt joint with the digital interface, so that the standing wave detection board is conveniently debugged.
Description
Technical Field
The application belongs to the technical field of communication, and particularly relates to a debugging and testing tool for a standing wave detection plate.
Background
A cavity filter for filtering out-of-band strong interference signals is generally arranged between a transceiver circuit and an antenna of the communication device. In order to monitor the performance of the communication device, a voltage standing wave ratio (voltage standing wave ratio, VSWR) detection plate (simply referred to as a standing wave detection plate) is generally arranged in a resonant cavity of the cavity filter, parameters such as return loss and standing wave value of the antenna can be monitored through the standing wave detection plate, and when the abnormal parameters of the antenna are monitored, the damage of the communication device can be avoided by timely alarming.
The performance of the standing wave detection board needs to be debugged in the production process of the communication equipment, and when the performance of the standing wave detection board is debugged, a switching control signal, a direct current power supply signal, a bias signal, a modulation-demodulation signal and the like are generally required to be provided for the standing wave detection board. The forward coupling signal and the reverse coupling signal output by the standing wave detection plate can be switched by the switching control signal; the direct current power supply signal and the bias signal can supply power to a circuit on the standing wave detection board, and the intelligent adjustment of the downtilt angle of the antenna can be realized through modulating and demodulating the signals. In general, the bias signal and the modem signal may be provided by transceiver circuitry of the communication device, while the switching control signal and the dc power signal are not conveniently provided by existing circuitry in the communication device.
Disclosure of Invention
In view of this, the embodiment of the application provides a debugging and testing tool for a standing wave detection board, which can conveniently provide a switching control signal and a direct current power supply signal required by performance detection of the standing wave detection board, so as to conveniently realize debugging of the standing wave detection board.
The embodiment of the application provides a debugging and testing tool of a standing wave detection board, which comprises a power supply unit, a switching control unit and a digital interface unit;
the first output end of the power supply unit is connected with the first power end of the switching control unit and the power end of the digital interface unit, the second output end of the power supply unit is connected with the second power end of the switching control unit, and the power supply unit is used for supplying power to the switching control unit and outputting a direct current power supply signal to the digital interface unit; the direct-current power supply signal is used for providing direct-current voltage required by work for a switch switching module on the standing wave detection board;
the output end of the switching control unit is connected with the switch control end of the digital interface unit, and the switching control unit is used for inputting a switch switching instruction by a user and outputting a switching control signal corresponding to the switch switching instruction to the digital interface unit; the switching control signal is used for switching control of a switch switching module on the standing wave detection plate so as to switch the forward coupling signal and the reverse coupling signal output by the standing wave detection plate;
the digital interface unit is adapted to a digital interface on the standing wave detection board, and is used for transmitting the direct current power supply signal and the switching control signal to the digital interface after being in butt joint with the digital interface, so that the digital interface transmits the direct current power supply signal and the switching control signal to the switch switching module.
In an optional implementation manner, the switching control unit includes a switching instruction input unit, a switching state indicating unit and a switching signal output unit;
the common connection point of the power end of the switching instruction input unit and the first end of the switching state indicating unit is used as the first power end of the switching control unit, the output end of the switching instruction input unit and the second end of the switching state indicating unit are connected with the input end of the switching signal output unit in a common mode, the power end of the switching signal output unit is used as the second power end of the switching control unit, and the output end of the switching signal output unit is used as the output end of the switching control unit;
the switching instruction input unit is used for a user to input a switching instruction of a switch and outputting a first control signal corresponding to the switching instruction to the switching signal output unit;
the switching state indicating unit is used for indicating the on-off state of a forward coupling signal path or a reverse coupling signal path on the standing wave detection plate based on the first control signal;
the switching signal output unit is used for outputting a switching control signal corresponding to the switch switching instruction based on the first control signal.
In an optional implementation manner, the power supply unit comprises a power interface, an electrostatic protection unit, a filtering unit, a power supply state indicating unit and a voltage transformation unit;
the first end of the static protection unit and the input end of the filtering unit are connected with the power end of the power interface, the power end of the power interface is used as the first output end of the power supply unit, the output end of the filtering unit and the first end of the power supply state indication unit are connected with the input end of the transformation unit, and the output end of the transformation unit is used as the second output end of the power supply unit;
the power interface is used for connecting a direct current power supply to acquire a first direct current power supply signal from the direct current power supply;
the electrostatic protection unit is used for performing overvoltage protection on the power supply unit;
the filtering unit is used for filtering clutter in the first direct current power supply signal;
the power supply state indicating unit is used for indicating the power supply state of the power supply unit;
the transformation unit is used for performing transformation processing on the first direct-current power supply signal and outputting a second direct-current power supply signal; the voltage of the second direct current power supply signal is lower than the voltage of the first direct current power supply signal.
In an alternative implementation, the switching instruction input unit includes a dial switch;
the power supply pin of the dial switch is used as the power supply end of the switching instruction input unit, the output pin of the dial switch is used as the output end of the switching instruction input unit, and the ground pin of the dial switch is grounded.
In an alternative implementation, the switching state indicating unit includes a first resistor and a first light emitting diode;
the first end of the first resistor is used as the first end of the switching state indicating unit, the second end of the first resistor is connected with the anode of the first light-emitting diode, and the cathode of the first light-emitting diode is used as the second end of the switching state indicating unit.
In an optional implementation manner, the switching signal output unit includes a second resistor, a first capacitor, a third resistor, a first switch tube and a second capacitor;
the first end of the second resistor is used as the input end of the switching signal output unit, the second end of the second resistor and the first end of the first capacitor are commonly connected to the controlled end of the first switch tube, the second end of the first capacitor is grounded, the common connection point of the first conduction end of the first switch tube, the first end of the third resistor and the first end of the second capacitor is used as the output end of the switching signal output unit, the second end of the third resistor is used as the power end of the switching signal output unit, and the second conduction end of the first switch tube and the second end of the second capacitor are grounded.
In an alternative implementation, the electrostatic protection unit comprises a varistor;
the first end of the rheostat is used as the first end of the electrostatic protection unit, and the second end of the rheostat is grounded.
In an alternative implementation, the filtering unit includes a first inductor and a third capacitor;
the first end of the first inductor is used as the input end of the filtering unit, the common connection point of the second end of the first inductor and the first end of the third capacitor is used as the output end of the filtering unit, and the second end of the third capacitor is grounded.
In an alternative implementation, the power supply status indication unit includes a fourth resistor and a second light emitting diode;
the first end of the fourth resistor is used as the first end of the power supply state indicating unit, the second end of the fourth resistor is connected with the anode of the second light emitting diode, and the cathode of the second light emitting diode is grounded.
In an optional implementation manner, the voltage transformation unit includes a fourth capacitor, a voltage stabilizing chip, a fifth resistor, a sixth resistor and a fifth capacitor;
the first end of the fourth capacitor, the input pin of the voltage stabilizing chip and the common connection point of the enabling pin of the voltage stabilizing chip are used as the input end of the voltage stabilizing unit, the second end of the fourth capacitor is grounded, the ground pin of the voltage stabilizing chip is grounded, the output pin of the voltage stabilizing chip, the first end of the fifth resistor and the common connection point of the first end of the fifth capacitor are used as the output end of the voltage stabilizing unit, the second end of the fifth resistor and the first end of the sixth resistor are commonly connected to the adjustable voltage pin of the voltage stabilizing chip, and the second end of the sixth resistor and the second end of the fifth capacitor are grounded.
The debugging and testing tool for implementing the standing wave detection plate provided by the embodiment of the application has the following beneficial effects:
according to the debugging test tool for the standing wave detection board, which comprises the power supply unit, the switching control unit and the digital interface unit, the power supply unit supplies power to the switching control unit and outputs a direct current power supply signal to the digital interface unit, the switching control unit outputs a switching control signal corresponding to the switching control instruction to the digital interface unit based on a switching instruction input by a user, and the digital interface unit matched with the digital interface on the standing wave detection board transmits the direct current power supply signal and the switching control signal to the digital interface after being in butt joint with the digital interface, so that the digital interface transmits the direct current power supply signal and the switching control signal to the switching module on the standing wave detection board, and the forward coupling signal and the reverse coupling signal output by the standing wave detection board are conveniently switched.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required for the embodiments or the description of the prior art will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view showing a mounting manner and a specific structure of a conventional standing wave detection board;
fig. 2 is a schematic structural diagram of a debugging test tool for a standing wave detection board according to an embodiment of the present application;
FIG. 3 is a schematic structural diagram of a debugging test tool for a standing wave detection board according to another embodiment of the present disclosure;
fig. 4 is a schematic circuit diagram of a debugging test tool for a standing wave detection board according to an embodiment of the present application.
Detailed Description
It is noted that the terminology used in the embodiments of the present application is used for the purpose of explaining specific embodiments of the present application only and is not intended to limit the present application. In the description of the embodiments of the present application, unless otherwise indicated, "a plurality" means two or more, and "at least one", "one or more" means one, two or more. The terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a definition of "a first", "a second" feature may explicitly or implicitly include one or more of such features.
Reference in the specification to "one embodiment" or "some embodiments" or the like means that a particular feature, structure, or characteristic described in connection with the embodiment is included in one or more embodiments of the application. Thus, appearances of the phrases "in one embodiment," "in some embodiments," "in other embodiments," and the like in the specification are not necessarily all referring to the same embodiment, but mean "one or more but not all embodiments" unless expressly specified otherwise. The terms "comprising," "including," "having," and variations thereof mean "including but not limited to," unless expressly specified otherwise.
Cavity filters typically include a resonant cavity and tuning screws. Compared with other filters, the cavity filter has the characteristics of firm structure, stable and reliable performance, small volume, moderate Q value, long high-end parasitic passband, good heat dissipation performance, capability of being used for high-power scenes and the like, and is widely applied between a receiving and transmitting circuit and an antenna in communication equipment and used for filtering out-of-band strong interference signals.
In order to monitor the performance of the communication device, a voltage standing wave ratio (voltage standing wave ratio, VSWR) detection plate (may be simply referred to as a standing wave detection plate) is generally disposed in a resonant cavity of the cavity filter, parameters such as return loss and standing wave value of the antenna can be monitored through the VSWR detection plate, and when the parameters of the antenna are monitored to be abnormal, the abnormal performance of the antenna can be determined, so that the abnormal performance of the communication device can be determined, and further damage to the communication device can be avoided by timely alarming.
Referring to fig. 1, a schematic diagram of a conventional VSWR detection board is shown. The VSWR detection board is generally coupled to the signal transmission main rod between the cavity filter and the antenna through a coupling auxiliary rod, the coupling auxiliary rod may generally include a Forward (FWD) coupling auxiliary rod and an inverse (REV) coupling auxiliary rod, the FWD coupling signal output by the FWD coupling auxiliary rod may be used to monitor the transmitting power of the antenna (i.e., the power of the signal transmitted to the antenna by the transmitting end of the transceiver circuit), the REV coupling signal output by the REV coupling auxiliary rod may be used to monitor the receiving power of the antenna (i.e., the power of the signal reflected back by the antenna received by the receiving end of the transceiver circuit), and the return loss and the standing wave value of the antenna may be calculated based on the transmitting power and the receiving power of the antenna, so as to determine whether the performance of the antenna is normal.
In general, the VSWR detection board may include a switching module 101, a filter 102, an antenna control module 103, a digital interface 104, and the like, in addition to the FWD coupling auxiliary lever and the REV coupling auxiliary lever. Wherein the filter 102 may be used to filter out-of-band frequency signals in the FWD coupled signal or the REV coupled signal, for example, the filter 102 may be a low-pass filter, and is used to filter out high-frequency signals in the FWD coupled signal or the REV coupled signal, so as to suppress interference generated by the high-frequency signals; for another example, the filter 102 may be a band-pass filter, for filtering out the frequency signal outside the passband in the FWD coupled signal or the REV coupled signal, so as to suppress interference generated by the frequency signal outside the passband; of course, the filter 102 may be a high-pass filter; the antenna control module 103 may be used as a transceiver circuit in the communication device to perform direct current power supply for the antenna or a channel for transmitting a signal of 2.176 megahertz (MHz), for example, to the antenna, so as to implement intelligent control on the downtilt angle of the antenna; the digital interface 104 may be used to receive dc power signals, switching control signals, bias signals, modem signals, and the like from the outside. The dc power signal may be used to provide the dc voltage required for operation of the switch-switching module 101; the switching control signal can be used for performing switching control on the switch switching module 101, so that switching of the FWD coupling signal and the REV coupling signal output by the VSWR detection board is realized; the bias signal may be used to provide the dc voltage required for downtilt adjustment of the antenna; the modem signal can be used to adjust and control the downtilt of the antenna. In addition, in order to prevent the radio frequency signal (i.e., FWD coupling signal or REV coupling signal) on the channel of the filter 102 from generating crosstalk with the signal on the channel of the antenna control module 103, a winding inductor 105 is typically welded on the signal transmission main rod, and the winding coil 105 is connected to the VSWR detection board, and is interfaced with the transceiver circuit of the communication device through the digital interface 104 through a series of blocking, filtering, lightning protection, and the like.
In the production process of the communication device, the performance of the VSWR detection board needs to be debugged (for example, the coupling value, the directivity and the like of an antenna are debugged), and when the performance of the VSWR detection board is debugged, a switching control signal, a direct current power supply signal, a bias signal, a modulation and demodulation signal and the like are usually required to be provided for the VSWR detection board, wherein the bias signal and the modulation and demodulation signal can be usually provided by a transceiver circuit of the communication device, and the switching control signal and the direct current power supply signal are inconvenient to be provided by the existing circuit of the communication device.
In view of this, the embodiments of the present application provide a debug test tool for a standing wave detection board, which can conveniently provide a switching control signal and a dc power supply signal required for performance detection of the standing wave detection board.
Fig. 2 is a schematic structural diagram of a debugging test tool for a standing wave detection board according to an embodiment of the present application. As shown in fig. 2, the debug test tool 20 of the standing wave detection board may include a power supply unit 201, a switching control unit 202, and a digital interface unit 203. The first output end of the power supply unit 201 is connected to the first power end of the switching control unit 202 and the power end of the digital interface unit 203, the second output end of the power supply unit 201 is connected to the second power end of the switching control unit 202, and the output end of the switching control unit 202 is connected to the switch control end of the digital interface unit 203.
The power supply unit 201 is configured to supply power to the switching control unit 202 and to output a direct current power supply signal to the digital interface unit 203. The dc power signal may be used to provide the dc voltage required for operation of the switch over module 101 on the standing wave detection board.
The switching control unit 202 is used for a user to input a switching instruction, and is used for outputting a switching control signal corresponding to the switching instruction, and transmitting the switching control signal to the digital interface unit 203. The switching control signal is used for switching control of the switching module 101 on the standing wave detection board so as to switch the FWD coupling signal and the REV coupling signal output by the standing wave detection board.
The digital interface unit 203 is matched with the digital interface 104 on the standing wave detection board, and the digital interface unit 203 can be used as an interface for the debugging test tool 20 of the standing wave detection board to be in butt joint with the standing wave detection board. The digital interface unit 203 is configured to, after interfacing with the digital interface 104 on the standing wave detection board, transmit the dc power signal and the switching control signal to the digital interface 104 on the standing wave detection board, so that the digital interface 104 on the standing wave detection board transmits the dc power signal and the switching control signal to the switch switching module 101, thereby implementing switching between the FWD coupling signal and the REV coupling signal output by the standing wave detection board.
It can be seen that, in the embodiment of the application, by providing the debugging and testing tool for the standing wave detection board including the power supply unit, the switching control unit and the digital interface unit, the power supply unit supplies power to the switching control unit and outputs a direct current power supply signal to the digital interface unit, the switching control unit outputs a switching control signal corresponding to the switching instruction to the digital interface unit based on the switching instruction input by the user, and the digital interface unit matched with the digital interface on the standing wave detection board transmits the direct current power supply signal and the switching control signal to the digital interface after being docked with the digital interface, so that the digital interface transmits the direct current power supply signal and the switching control signal to the switching module on the standing wave detection board, thereby realizing the switching of the forward coupling signal and the reverse coupling signal output by the standing wave detection board, and facilitating the realization of the debugging of the standing wave detection board.
Fig. 3 is a schematic structural diagram of a debugging test tool for a standing wave detection board according to another embodiment of the present application. As shown in fig. 3, the present embodiment differs from the embodiment corresponding to fig. 2 in that the switching control unit 202 in the present embodiment may include a switching instruction input unit 2021, a switching state indicating unit 2022, and a switching signal output unit 2023.
The common connection point of the power source end of the switching command input unit 2021 and the first end of the switching state indicating unit 2022 is used as the first power source end of the switching control unit 202, the output end of the switching command input unit 2021 and the second end of the switching state indicating unit 2022 are commonly connected to the input end of the switching signal output unit 2023, the power source end of the switching signal output unit 2023 is used as the second power source end of the switching control unit 202, and the output end of the switching signal output unit 2023 is used as the output end of the switching control unit 202.
The switching instruction input unit 2021 is used for a user to input a switching instruction, and outputs a first control signal corresponding to the switching instruction to the switching signal output unit 2023.
For example, the switch switching instructions may include a first switching instruction and a second switching instruction. The first switching command may be used to instruct the FWD coupling signal path on the VSWR detection plate to be turned on and the REV coupling signal path on the VSWR detection plate to be turned off; the second switching command may be used to instruct the FWD coupling signal path on the VSWR detection plate to be disconnected and the REV coupling signal path on the VSWR detection plate to be connected. When the user inputs a first switching instruction through the switching instruction input unit 2021, the first control signal may be a high level signal; when the user inputs the second switching instruction through the switching instruction input unit 2021, the first control signal may be a low level signal.
The switching state indicating unit 2022 is configured to indicate an on-off state of the FWD coupling signal path or the REV coupling signal path on the VSWR detection board based on the first control signal.
For example, when the first control signal is a high level signal, the switching state indicating unit 2022 may indicate that the FWD coupling signal path on the VSWR detection board is in an on state and the REV coupling signal path is in an off state through the first state; when the first control signal is a low level signal, the switching state indicating unit 2022 may indicate that the FWD coupling signal path on the VSWR detection board is in an off state and the REV coupling signal path is in an on state through the second state. The first state may be, for example, an indicator light off state, and the second state may be, for example, an indicator light on state.
The switching signal output unit 2023 is configured to output a switching control signal corresponding to the switching instruction based on the first control signal. The switching control signal can be used for controlling on-off of the FWD coupling signal path or the REV coupling signal path.
Illustratively, when the first control signal is a high level signal, the switching control signal may be a low level signal, at which time the switching control signal may be used to turn on the FWD coupling signal path on the VSWR sensing board and turn off the REV coupling signal path on the sensing board; when the first control signal is a low level signal, the switching control signal may be a high level signal, and at this time, the switching control signal may be used to disconnect the FWD coupling signal path on the VSWR detection board and connect the REV coupling signal path on the detection board.
With continued reference to fig. 3, in yet another embodiment of the present application, the power supply unit 201 may include a power interface 2011, an electrostatic protection unit 2012, a filtering unit 2013, a power supply status indicating unit 2014, and a voltage transformation unit 2015.
The first end of the electrostatic protection unit 2012 and the input end of the filter unit 2013 are commonly connected to the power supply end of the power supply interface 2011, the power supply end of the power supply interface 2011 is used as the first output end of the power supply unit 201, the output end of the filter unit 2013 and the first end of the power supply status indication unit 2014 are commonly connected to the input end of the voltage transformation unit 2015, and the output end of the voltage transformation unit 2015 is used as the second output end of the power supply unit 201.
The power interface 2011 is used for connecting to a dc power supply to obtain a first dc power signal from the dc power supply. The voltage of the first direct current power signal may be, for example, 5 volts (V).
The electrostatic protection unit 2012 is used for overvoltage protection of the power supply unit 201.
The filtering unit 2013 is configured to filter out noise in the first dc power signal.
The filtering unit 2013 may be a low-pass filtering unit, for example.
The power supply state indicating unit 2014 is configured to indicate a power supply state of the power supply unit 201.
For example, when the power supply unit 201 is connected to the dc power supply through the power interface 2011, the power supply state indicating unit 2014 may indicate that the power supply unit 201 is in the power supply state through the third state; when the power supply unit 201 is not connected to the dc power supply, the power supply state indicating unit 2014 may indicate that the power supply unit 201 is in the unpowered state through the fourth state. The third state may be, for example, an indicator light on state, and the fourth state may be, for example, an indicator light off state.
The transforming unit 2015 is used for transforming the first direct current power signal and outputting a second direct current power signal. The voltage of the second direct current power supply signal may be lower than the voltage of the first direct current power supply signal. The voltage of the second dc power supply signal may be 1.8V, for example.
According to the embodiment, the power supply interface is arranged in the power supply unit, so that the debugging and testing tool of the standing wave detection plate can be used in a plug-and-play mode, and the power supply module is not required to be arranged in the debugging and testing tool of the standing wave detection plate, and therefore cost can be saved.
Fig. 4 is a schematic circuit diagram of a debugging test tool for a standing wave detection board according to an embodiment of the present application. As shown in fig. 4, in one embodiment of the present application, the switching instruction input unit 2021 may include a dial switch U1, a power pin VCC1 of the dial switch U1 is used as a power terminal of the switching instruction input unit 2021, an output pin OUT1 of the dial switch U1 is used as an output terminal of the switching instruction input unit 2021, and a ground pin GND1 of the dial switch U1 is grounded.
Illustratively, the dip switch U1 may be a mechanical dip switch.
In another embodiment of the present application, the switching state indicating unit 2022 may include a first resistor R1 and a first light emitting diode D1. The first end of the first resistor R1 is used as the first end of the switching state indicating unit 2022, the second end of the first resistor R1 is connected to the anode of the first light emitting diode D1, and the cathode of the first light emitting diode D1 is used as the second end of the switching state indicating unit 2022.
In yet another embodiment of the present application, the switching signal output unit 2023 may include a second resistor R2, a first capacitor C1, a third resistor R3, a first switching tube Q1, and a second capacitor C2. The first end of the second resistor R2 is used as the input end of the switching signal output unit 2023, the second end of the second resistor R2 and the first end of the first capacitor C1 are commonly connected to the controlled end of the first switch tube Q1, the second end of the first capacitor C1 is grounded, the common connection point of the first conductive end of the first switch tube Q1, the first end of the third resistor R3 and the first end of the second capacitor C2 is used as the output end of the switching signal output unit 2023, the second end of the third resistor R3 is used as the power end of the switching signal output unit 2023, and the second conductive end of the first switch tube Q1 and the second end of the second capacitor C2 are grounded.
The first switching transistor Q1 may be an NPN transistor, a base of the NPN transistor may be a controlled terminal of the first switching transistor Q1, a collector of the NPN transistor may be a first conductive terminal of the first switching transistor Q1, and an emitter of the NPN transistor may be a second conductive terminal of the first switching transistor Q1. The first switching tube may also be an NMOS tube, where a gate of the NMOS tube may be a controlled end of the first switching tube Q1, a drain of the NMOS tube may be a first conductive end of the first switching tube Q1, and a source of the NMOS tube may be a second conductive end of the first switching tube Q1.
In yet another embodiment of the present application, the power interface 2011 may include a first interface chip U2, where a power pin VCC2 of the first interface chip U2 is used as a power terminal of the power interface 2011, and a ground pin GND2 of the first interface chip U2 is grounded.
In a specific application, the first interface chip U2 may be a universal serial bus (universal serial bus, USB) interface, for example, a mini (mini) USB interface.
The first interface chip U2 may obtain a dc power signal having a voltage value of, for example, 5V from the dc power source through the power pin VCC, and transmit the obtained dc power signal to the post-stage circuit.
In yet another embodiment of the present application, the electrostatic protection unit 2012 may include a varistor D2. The first end of the varistor D2 is used as the first end of the electrostatic protection unit 2012, and the second end of the varistor D2 is grounded. Varistor D2 may be composed of two back-to-back zener diodes.
In still another embodiment of the present application, the filtering unit 2013 may include a first inductor L1 and a third capacitor C3. The first end of the first inductor L1 is used as an input end of the filtering unit 2013, a common point between the second end of the first inductor L1 and the first end of the third capacitor C3 is used as an output end of the filtering unit 2013, and the second end of the third capacitor C3 is grounded.
In still another embodiment of the present application, the power supply state indicating unit 2014 may include a fourth resistor R4 and a second light emitting diode D3. The first end of the fourth resistor R4 is used as the first end of the power supply status indication unit 2014, the second end of the fourth resistor R4 is connected to the anode of the second light emitting diode D3, and the cathode of the second light emitting diode D3 is grounded.
In yet another embodiment of the present application, the transforming unit 2015 may include a fourth capacitor C4, a voltage stabilizing chip U3, a fifth resistor R5, a sixth resistor R6, and a fifth capacitor C5. The common connection point of the first end of the fourth capacitor C4, the input pin of the voltage stabilizing chip U3, and the enable pin EN of the voltage stabilizing chip U3 is used as the input end of the voltage transforming unit 2015, the second end of the fourth capacitor C4 is grounded, the ground pin of the voltage stabilizing chip U3 is grounded, the common connection point of the output pin OUT2 of the voltage stabilizing chip U3, the first end of the fifth resistor R5, and the first end of the fifth capacitor C5 is used as the output end of the voltage transforming unit 2015, the second end of the fifth resistor R5 and the first end of the sixth resistor R6 are commonly connected to the adjustable voltage pin ADJ of the voltage stabilizing chip U3, and the second end of the sixth resistor R6 and the second end of the fifth capacitor C5 are grounded.
For example, the voltage regulator chip U3 may be a low dropout linear regulator (low dropout regulator, LDO).
In yet another embodiment of the present application, the digital interface unit 203 may include a digital interface chip U4, N bias terminals 2031, and N modem terminals 2032. The digital interface chip U4 may be adapted to the digital interface 104 on the VSWR detection board, that is, the number of pins and types of pins included in the digital interface chip U4 correspond to the digital interface 104 on the VSWR detection board, so that the digital interface chip U4 and the digital interface 104 on the VSWR detection board may be in butt joint.
Specifically, the power pin VCC3 of the digital interface chip U4 is used as the power end of the digital interface unit 203, the ground pin GND4 of the digital interface chip U4 is grounded, the switch control pin CRT1 of the digital interface chip U4 is used as the switch control end of the digital interface unit 203, the N BIAS pins bias_1 to bias_n of the digital interface chip U4 are respectively corresponding to the N BIAS terminals 2031, each BIAS pin of the digital interface chip U4 is connected to the first end of the corresponding BIAS terminal 2031, the second ends of all BIAS terminals 2031 are grounded, the N modem pins mod_1 to mod_n of the digital interface chip U4 are respectively corresponding to the N modem terminals 2032, and each modem pin of the digital interface chip U4 is connected to the first end of the corresponding modem terminal 2032, and the second ends of all modem terminals 2032 are grounded.
Note that N is a positive integer, and N may be set according to actual needs, and is not particularly limited here. In addition, the number of the switching control units 202 included in the debug test tool 20 of the standing wave detection board may also be set according to the number of the switching modules 101 on the standing wave detection board, and the number of the switching control units 202 included in the debug test tool 20 of the standing wave detection board is not particularly limited here.
The working principle of the debugging test tool 20 for standing wave detection board provided in the embodiment of the present application is described in detail below with reference to fig. 4.
When the standing wave detection board needs to be debugged, the debugging test tool 20 of the standing wave detection board can be abutted with the standing wave detection board through the digital interface chip U4, the debugging test tool 20 is connected with a direct current power supply through the first interface chip U2, the first interface chip U2 can acquire a first direct current power supply signal with a voltage value of 5V for example from the direct current power supply, and the first direct current power supply signal is transmitted to the standing wave detection board through the digital interface chip U4, so that direct current voltage required by work is provided for the switch switching module 101 on the standing wave detection board. In addition, the first interface chip U2 may transmit the first direct current power signal to the voltage transformation unit 2015 via the electrostatic protection unit 2012, the filtering unit 2013, and the power supply status indicating unit 2014, in which case, since the anode of the second light emitting diode D3 is at a high level, the second light emitting diode D3 is turned on, and may be used to indicate that the test tool 20 is currently supplying power to the standing wave detection board; when the first interface chip U2 is not connected to the dc power supply, the anode of the second light emitting diode D3 is at a low level, so that the second light emitting diode D3 is in a turned-off state, which can be used to indicate that the test tool 20 is not currently supplying power to the standing wave detection board. After receiving the first dc power signal, the voltage stabilizing chip U3 in the voltage transforming unit 2015 may perform voltage conversion on the first dc power signal to obtain a second dc power signal with a voltage value of, for example, 1.8V, and output the second dc power signal to the switching control unit 202, so as to assist the switching control unit 202 to output the switching control signal.
Specifically, the dial switch U1 in the switching control unit 202 may include two switch states. The switch state is a state that the output pin OUT1 of the dial switch U1 is connected with the power supply pin VCC1, and the other switch state is a state that the output pin OUT1 of the dial switch U1 is connected with the ground GND 1. When the output pin OUT1 of the dial switch U1 is connected to the power supply pin VCC1, the first light emitting diode D1 is turned off, and at this time, the first switching tube Q1 is turned on, and the first conduction end of the first switching tube Q1 outputs a switching control signal with a level close to 0V, so that the low level triggering condition (generally, the required level is less than 0.6V) of the switching module 101 on the standing wave detection board is satisfied. When the output pin OUT1 of the dial switch U1 is connected to the ground GND1, the first light emitting diode D1 is in a turned-on state, and at this time, the first switching tube Q1 is turned off, and the first conducting end of the first switching tube Q1 outputs a switching control signal with a level close to 1.8V, so that the high level triggering condition (generally, the required level is greater than 1.1V) of the switching module 101 on the standing wave detection board is satisfied.
The first conducting end of the first switching tube Q1 outputs a switching control signal, which can be transmitted to the digital interface 104 on the standing wave detection board via the digital interface chip U4, and the digital interface 104 on the standing wave detection board can transmit the received direct current power signal and the switching control signal to the switching module 101, so as to realize the switching control of the switching module 101, and further realize the switching of the FWD coupling signal and the REV coupling signal output by the standing wave detection board.
In addition, when the bias signal and the modem signal need to be provided to the standing wave detection board, the bias pin and the modem pin of the digital interface chip U4 may also be connected to a transceiver circuit of the communication device, and the bias signal and the modem signal output by the transceiver circuit may be transmitted to the standing wave detection board via the digital interface chip U4.
The above embodiments are only for illustrating the technical solution of the present application, and are not limiting; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present application, and are intended to be included in the scope of the present application.
Claims (10)
1. The debugging and testing tool for the standing wave detection plate is characterized by comprising a power supply unit, a switching control unit and a digital interface unit;
the first output end of the power supply unit is connected with the first power end of the switching control unit and the power end of the digital interface unit, the second output end of the power supply unit is connected with the second power end of the switching control unit, and the power supply unit is used for supplying power to the switching control unit and outputting a direct current power supply signal to the digital interface unit; the direct-current power supply signal is used for providing direct-current voltage required by work for a switch switching module on the standing wave detection board;
the output end of the switching control unit is connected with the switch control end of the digital interface unit, and the switching control unit is used for inputting a switch switching instruction by a user and outputting a switching control signal corresponding to the switch switching instruction to the digital interface unit; the switching control signal is used for switching control of a switch switching module on the standing wave detection plate so as to switch the forward coupling signal and the reverse coupling signal output by the standing wave detection plate;
the digital interface unit is adapted to a digital interface on the standing wave detection board, and is used for transmitting the direct current power supply signal and the switching control signal to the digital interface after being in butt joint with the digital interface, so that the digital interface transmits the direct current power supply signal and the switching control signal to the switch switching module.
2. The debugging test tool of a standing wave detection board according to claim 1, wherein the switching control unit comprises a switching instruction input unit, a switching state indicating unit and a switching signal output unit;
the common connection point of the power end of the switching instruction input unit and the first end of the switching state indicating unit is used as the first power end of the switching control unit, the output end of the switching instruction input unit and the second end of the switching state indicating unit are connected with the input end of the switching signal output unit in a common mode, the power end of the switching signal output unit is used as the second power end of the switching control unit, and the output end of the switching signal output unit is used as the output end of the switching control unit;
the switching instruction input unit is used for a user to input a switching instruction of a switch and outputting a first control signal corresponding to the switching instruction to the switching signal output unit;
the switching state indicating unit is used for indicating the on-off state of a forward coupling signal path or a reverse coupling signal path on the standing wave detection plate based on the first control signal;
the switching signal output unit is used for outputting a switching control signal corresponding to the switch switching instruction based on the first control signal.
3. The debugging test tool of the standing wave detection board according to claim 1 or 2, wherein the power supply unit comprises a power interface, an electrostatic protection unit, a filtering unit, a power supply state indicating unit and a voltage transformation unit;
the first end of the static protection unit and the input end of the filtering unit are connected with the power end of the power interface, the power end of the power interface is used as the first output end of the power supply unit, the output end of the filtering unit and the first end of the power supply state indication unit are connected with the input end of the transformation unit, and the output end of the transformation unit is used as the second output end of the power supply unit;
the power interface is used for connecting a direct current power supply to acquire a first direct current power supply signal from the direct current power supply;
the electrostatic protection unit is used for performing overvoltage protection on the power supply unit;
the filtering unit is used for filtering clutter in the first direct current power supply signal;
the power supply state indicating unit is used for indicating the power supply state of the power supply unit;
the transformation unit is used for performing transformation processing on the first direct-current power supply signal and outputting a second direct-current power supply signal; the voltage of the second direct current power supply signal is lower than the voltage of the first direct current power supply signal.
4. The debugging test tool of a standing wave detection board according to claim 2, wherein the switching instruction input unit comprises a dial switch;
the power supply pin of the dial switch is used as the power supply end of the switching instruction input unit, the output pin of the dial switch is used as the output end of the switching instruction input unit, and the ground pin of the dial switch is grounded.
5. The debugging test tool of a standing wave detection board according to claim 2, wherein the switching state indicating unit comprises a first resistor and a first light emitting diode;
the first end of the first resistor is used as the first end of the switching state indicating unit, the second end of the first resistor is connected with the anode of the first light-emitting diode, and the cathode of the first light-emitting diode is used as the second end of the switching state indicating unit.
6. The debugging test tool of the standing wave detection board according to claim 2, wherein the switching signal output unit comprises a second resistor, a first capacitor, a third resistor, a first switch tube and a second capacitor;
the first end of the second resistor is used as the input end of the switching signal output unit, the second end of the second resistor and the first end of the first capacitor are commonly connected to the controlled end of the first switch tube, the second end of the first capacitor is grounded, the common connection point of the first conduction end of the first switch tube, the first end of the third resistor and the first end of the second capacitor is used as the output end of the switching signal output unit, the second end of the third resistor is used as the power end of the switching signal output unit, and the second conduction end of the first switch tube and the second end of the second capacitor are grounded.
7. A debugging test tool for standing wave detection plate according to claim 3, wherein the electrostatic protection unit comprises a varistor;
the first end of the rheostat is used as the first end of the electrostatic protection unit, and the second end of the rheostat is grounded.
8. The debugging test tool of standing wave detection board of claim 3, wherein the filter unit comprises a first inductance and a third capacitance;
the first end of the first inductor is used as the input end of the filtering unit, the common connection point of the second end of the first inductor and the first end of the third capacitor is used as the output end of the filtering unit, and the second end of the third capacitor is grounded.
9. The debugging test tool of standing wave detection board according to claim 3, wherein the power state indicating unit comprises a fourth resistor and a second light emitting diode;
the first end of the fourth resistor is used as the first end of the power supply state indicating unit, the second end of the fourth resistor is connected with the anode of the second light emitting diode, and the cathode of the second light emitting diode is grounded.
10. The debugging test tool of standing wave detection board according to claim 3, wherein the voltage transformation unit comprises a fourth capacitor, a voltage stabilizing chip, a fifth resistor, a sixth resistor and a fifth capacitor;
the first end of the fourth capacitor, the input pin of the voltage stabilizing chip and the common connection point of the enabling pin of the voltage stabilizing chip are used as the input end of the voltage stabilizing unit, the second end of the fourth capacitor is grounded, the ground pin of the voltage stabilizing chip is grounded, the output pin of the voltage stabilizing chip, the first end of the fifth resistor and the common connection point of the first end of the fifth capacitor are used as the output end of the voltage stabilizing unit, the second end of the fifth resistor and the first end of the sixth resistor are commonly connected to the adjustable voltage pin of the voltage stabilizing chip, and the second end of the sixth resistor and the second end of the fifth capacitor are grounded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320059364.1U CN219369972U (en) | 2023-01-09 | 2023-01-09 | Debugging and testing tool for standing wave detection plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320059364.1U CN219369972U (en) | 2023-01-09 | 2023-01-09 | Debugging and testing tool for standing wave detection plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219369972U true CN219369972U (en) | 2023-07-18 |
Family
ID=87116665
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320059364.1U Active CN219369972U (en) | 2023-01-09 | 2023-01-09 | Debugging and testing tool for standing wave detection plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219369972U (en) |
-
2023
- 2023-01-09 CN CN202320059364.1U patent/CN219369972U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US6205344B1 (en) | Power adapter with integral radio frequency port | |
| CN108063627B (en) | Radio frequency receiving and transmitting switch | |
| CN109150203B (en) | Antenna switching circuit and antenna system | |
| US9966987B2 (en) | Radio frequency switching system | |
| CN219369972U (en) | Debugging and testing tool for standing wave detection plate | |
| US20140287699A1 (en) | Rf front-end module | |
| CN110798325A (en) | Power supply circuit capable of automatically adjusting power supply voltage | |
| US6753716B2 (en) | Balanced load switch | |
| WO2022151308A1 (en) | APPARATUS AND METHOD FOR MEASURING DYNAMIC ON-RESISTANCE OF GaN-BASED DEVICE | |
| CN117251012A (en) | Voltage switching circuit and power supply system using the same | |
| CN110524090B (en) | Current regulating circuit | |
| US6998915B2 (en) | Apparatus for switching matching circuit in mobile communication terminal | |
| CN219553889U (en) | Antenna protection device | |
| CN219087133U (en) | Dual-channel broadband frequency conversion system for microwave transceiver component | |
| CN212811546U (en) | Chip control conversion circuit | |
| CN219871639U (en) | fault diagnosis circuit | |
| CN218301217U (en) | Surge suppression circuit and device with monitoring function | |
| CN217883218U (en) | Power supply device of active radio frequency antenna | |
| CN218005255U (en) | Antenna tuning switch circuit, antenna and terminal | |
| CN112865496B (en) | Control circuit, control method and voltage conversion circuit | |
| CN112833516B (en) | Communication circuit of indoor unit and outdoor unit of air conditioner and air conditioner | |
| CN112671381B (en) | Broadband radio frequency switch and edge optimization method thereof | |
| CN217643357U (en) | Antenna switching circuit and mobile terminal | |
| CN213876383U (en) | Switching value acquisition circuit and relay protection device | |
| CN117674540A (en) | TR assembly power supply control circuit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |