A vector frequency conversion phase automatic test system and method

Abstract

The invention discloses a vector frequency conversion phase automatic test system and method. A switch matrix is ​​communicatively connected with a frequency conversion TR component, and is used for switching a switch link to a test channel corresponding to a current phase test type to be tested of the frequency conversion TR component. Ports of the switching switch are respectively connected with a vector network analyzer and a reference mixer, and are used for switching a signal connection channel between the vector network analyzer and the reference mixer according to a current phase test type to be tested of the frequency conversion TR component. The vector network analyzer is communicatively connected with the switch matrix, and is used for receiving data to be tested according to a test channel switched from the switch matrix, and completing a phase test of the frequency conversion TR component in combination with the reference mixer. By adding a switching switch, the signal connection channel between the vector network analyzer and the reference mixer can be switched according to the current phase test type without unplugging a cable connector, thereby improving the efficiency of automatic testing.

Description

Technical Field

[0001] The present invention relates to the technical field of frequency conversion test systems, and in particular to a vector frequency conversion phase automatic test system and method. Background Art

[0002] Since the frequency conversion TR component has two modes: transmission mode and reception mode, the transmission phase and reception phase of the TR component need to be tested separately when testing the phase of the frequency conversion TR component. The traditional test system generally includes a vector network analyzer, a reference mixer, a switch matrix and a frequency conversion TR component. The input reference output port of the vector network analyzer is connected to the RF port and RF port of the reference mixer according to different test scenarios, and then the test items of the corresponding test scenario are executed through the automatic test software to complete the phase test of the frequency conversion TR component.

[0003] However, in the above process, since there are two test scenarios for the variable frequency TR component, the input reference output port of the vector network analyzer needs to be set according to whether the current test is the receiving phase test or the transmitting phase test scenario of the variable frequency TR component when connected to the IF port and the RF port of the reference mixer. For example, if the current test is the receiving phase test, the reference input port of the vector network analyzer is connected to the IF port, and the reference output port is connected to the RF port. If the transmitting phase test needs to be re-performed, the cable of the reference input port of the vector network analyzer needs to be manually replaced and connected to the RF port, and the connecting cable of the reference output port needs to be connected to the IF port.

[0004] Every time the test scenario is changed, the connection cables between the vector network analyzer and the mixer need to be manually replaced, which adds the tedious operation of changing cables in the middle of the transmit and receive phase test process, and easily causes uncertainty errors in the test process due to manual cable changes. Summary of the invention

[0005] The object of the present invention is to provide a vector frequency conversion phase automatic testing system and method. By adding a switching switch, when the test type is continuously tested between the receiving phase test and the transmitting phase test, the signal connection channel between the vector network analyzer and the reference mixer can be switched according to the current phase test type without unplugging the cable connector, thereby improving the automatic testing efficiency.

[0006] To achieve the above objectives, this application provides the following solutions:

[0007] On the one hand, the present application provides a vector frequency conversion phase automatic test system, including: a vector network analyzer, a reference mixer, a switch matrix, a switching switch, a frequency conversion TR component, an automatic test software and a wave control module, wherein:

[0008] The switch matrix is ​​in communication connection with the variable frequency TR component, and is used to switch the switch link to the test channel corresponding to the test type of the current phase to be tested of the variable frequency TR component;

[0009] The ports of the switching switch are respectively connected to a vector network analyzer and a reference mixer, and are used to switch the signal connection channel between the vector network analyzer and the reference mixer according to the current phase test type to be tested of the frequency conversion TR component;

[0010] The vector network analyzer is communicatively connected with the switch matrix, and is used to receive the data to be tested according to the test channel switched from the switch matrix, and complete the phase test of the frequency conversion TR component in combination with the reference mixer;

[0011] Automated test software, used to complete the configuration and automated control of the vector network analyzer, reference mixer, switch matrix, switching switch and frequency conversion TR components, and complete the communication interaction with the wave control module;

[0012] The wave control module is used to complete the test channel switching of the frequency conversion TR component and the switching of the wave position state to be tested.

[0013] In some specific embodiments, the switching switch uses a double-pole double-throw switch, port 1 of the double-pole double-throw switch is connected to the reference output port of the vector network analyzer, port 2 of the double-pole double-throw switch is connected to the reference input port of the vector network analyzer, port 3 of the double-pole double-throw switch is connected to the RF port of the reference mixer, and port 4 of the double-pole double-throw switch is connected to the IF port of the reference mixer.

[0014] In some specific implementations, if the test item of the phase test currently to be tested of the frequency conversion TR component is a receiving phase test, the signal connection channel between the vector network analyzer and the reference mixer is:

[0015] The signal output from the output end of the vector network analyzer is switched by the double-pole double-throw switch, so that the signal is output from port 1 and port 3 of the double-pole double-throw switch to the RF port of the reference mixer in turn, and then the IF signal is output from the IF port of the reference mixer after mixing by the reference mixer. The IF signal flows from port 4 of the double-pole double-throw switch to port 2 in turn, and then is input to the reference input port of the vector network analyzer.

[0016] In some specific implementations, if the test item of the phase test currently to be tested of the frequency conversion TR component is a transmission phase test, the signal connection channel between the vector network analyzer and the reference mixer is:

[0017] The signal output from the output end of the vector network analyzer is switched by the double-pole double-throw switch, so that the signal is output to the IF port of the reference mixer through port 1 and port 4 of the double-pole double-throw switch in turn, and then output from the RF port of the reference mixer after mixing by the reference mixer. The RF signal flows from port 3 of the double-pole double-throw switch to port 2 in turn and is input to the reference input port of the vector network analyzer.

[0018] In a second aspect, the present application provides a vector frequency conversion phase automatic testing method, comprising the following steps:

[0019] S1. Load the test items of the receiving phase test and the transmitting phase test and the receiving phase calibration file and the transmitting phase calibration file respectively;

[0020] S2. Configure the vector network analyzer, reference mixer, switch matrix, switching switch and frequency conversion TR component to be tested according to the phase test type currently required; the phase test type includes receiving phase test and transmitting phase test;

[0021] S3, using the phase calibration file corresponding to the currently required phase test type to calibrate the frequency conversion TR component to be tested, after the calibration is completed, executing the test item corresponding to the currently required phase test type to complete the test;

[0022] S4, switching the phase test type, controlling the switch to switch the signal connection channel between the vector network analyzer and the reference mixer to the corresponding test mode, and repeating steps S2-S3.

[0023] In some specific implementations, the specific process of step S2 is:

[0024] S21, sending the parameters required for the test items corresponding to the currently required phase test type to the frequency conversion TR component for configuration, and controlling the frequency conversion TR component to switch to the mode corresponding to the current phase test type and opening the corresponding test channel through the wave control module;

[0025] S22, controlling the link of the switch matrix to switch to the test channel corresponding to the variable frequency TR component, connecting the test channel between the vector network analyzer and the variable frequency TR component;

[0026] S23. According to the currently required phase test type, control the switching switch to conduct the signal connection channel corresponding to the test mode between the reference mixer and the vector network analyzer.

[0027] In some specific implementations, if the currently required phase test type is a receive phase test, the test process is:

[0028] S100, sending the parameters required for the test items of the receiving phase test to the frequency conversion TR component for configuration, and controlling the frequency conversion TR component to switch to the receiving mode through the wave control module to open the receiving test channel of the frequency conversion TR component;

[0029] S200, controlling the link of the switch matrix to switch to the receiving test channel of the frequency conversion TR component, connecting the receiving test channel between the vector network analyzer and the frequency conversion TR component;

[0030] S300, controlling the switching switch to switch the signal connection channel between the reference mixer and the vector network analyzer to a receiving mode, so that the reference mixer acts as a down converter to output an IF signal to the vector network analyzer;

[0031] S400, calibrate the frequency conversion TR component to be tested using the receiving phase calibration file, and after the calibration is completed, execute a test item of the receiving phase test type to automatically complete the receiving phase test process.

[0032] In some specific implementations, if the currently required phase test type is a transmission phase test, the test process is:

[0033] S110, sending the parameters required for the test items of the transmission phase test to the variable frequency TR component for configuration, and controlling the variable frequency TR component to switch to the transmission mode through the wave control module to open the transmission test channel of the variable frequency TR component;

[0034] S210, controlling the link of the switch matrix to switch to the transmission test channel of the variable frequency TR component, connecting the transmission test channel between the vector network analyzer and the variable frequency TR component;

[0035] S310, controlling the switching switch to switch the signal connection channel between the reference mixer and the vector network analyzer to a transmission mode, so that the reference mixer acts as an up-converter to output an RF signal to the vector network analyzer;

[0036] S410, calibrate the frequency conversion TR component to be tested using the receiving phase calibration file, and after the calibration is completed, execute a test item of the receiving phase test type to automatically complete the receiving phase test process.

[0037] In some specific implementations, the switching switch is a double-pole double-throw switch. When the signal connection channel between the reference mixer and the vector network analyzer is in the receiving mode in step S300, the switching process is:

[0038] Controlling the double-pole double-throw switch to conduct port 1 and port 3 of the double-pole double-throw switch, so that the signal output from the reference output port of the vector network analyzer is output from port 1 and port 3 of the double-pole double-throw switch to the RF port of the reference mixer in sequence;

[0039] The double-pole double-throw switch is controlled to turn on port 2 and port 4 of the double-pole double-throw switch, so that the signal output from the IF port of the reference mixer is input to the reference input port of the vector network analyzer from port 4 and port 2 of the double-pole double-throw switch in sequence.

[0040] In some specific implementations, the switching switch is a double-pole double-throw switch. When the signal connection channel between the reference mixer and the vector network analyzer is in the transmission mode in step S310, the switching process is:

[0041] Controlling the double-pole double-throw switch to conduct port 1 and port 4 of the double-pole double-throw switch, so that the signal output from the reference output port of the vector network analyzer is output from port 1 and port 4 of the double-pole double-throw switch to the IF port of the reference mixer in sequence;

[0042] The double-pole double-throw switch is controlled to turn on port 2 and port 3 of the double-pole double-throw switch, so that the signal output from the RF port of the reference mixer is input to the reference input port of the vector network analyzer from port 3 and port 2 of the double-pole double-throw switch in sequence.

[0043] The inventive concept of this application is:

[0044] like Figure 1-Figure 2 As shown, in the traditional variable frequency TR component automated testing process, when the test phase type changes, for example, when switching from the receiving phase test to the transmitting phase test, after completing the receiving phase test, before performing the transmitting phase test, it is necessary to manually replace the connecting cable between the reference input and output ports of the vector network analyzer and the RF port and IF port of the reference mixer in order to continue the transmitting phase test. In this way, the cumbersome operation of changing the line in the middle of the receiving and transmitting phase test process reduces the efficiency of the automatic test and is prone to cause many uncertain errors due to human operation.

[0045] The present application adds a double-pole double-throw switch to the test system, controls the switching of the double-pole double-throw switch link through automated test software, thereby completing the flow of the signal required for the current phase test type between the vector network analyzer and the reference mixer according to the switched signal connection channel, and automatically switches the connection mode between the reference mixer and the vector network analyzer through software control, thereby realizing automatic switching between the receiving phase test and the transmitting phase test. The receiving phase test and the transmitting phase test can be continuously performed without manual switching, and there is no need to perform tedious line changing operations in the middle of the receiving and transmitting phase test process, thereby greatly improving the efficiency of automatic testing and reducing the uncertainty errors caused by human operation.

[0046] The present invention has the beneficial effects:

[0047] The present application can complete continuous testing of receiving phase test and transmitting phase test by adding a switching switch between the vector network analyzer and the reference mixer in the automatic test system. The signal connection channel between the vector network analyzer and the reference mixer can be switched according to the current phase test type without unplugging the cable connector. There is no need to perform tedious line changing operations in the middle of the receiving and transmitting phase test process, thereby greatly improving the efficiency of automatic testing and reducing the uncertainty errors caused by human operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0048] Figure 1 A schematic diagram of the connection of a receiving phase automatic test system in the prior art;

[0049] Figure 2 A schematic diagram of the connection of an automatic test system for transmitting phase in the prior art;

[0050] Figure 3 A block diagram of a vector frequency conversion phase automatic test system provided in an embodiment of the present application;

[0051] Figure 4 A block diagram of a vector frequency conversion receiving phase automatic test system provided in an embodiment of the present application;

[0052] Figure 5 A block diagram of a vector frequency conversion transmission phase automatic test system provided in an embodiment of the present invention;

[0053] Figure 6 This is a flow chart of the vector frequency conversion automatic phase testing method provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0054] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means intended to limit the present invention and its application or use. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0055] The relative arrangement of components and steps, the numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise.

[0056] At the same time, it should be understood that for the convenience of description, the sizes of the various parts shown in the drawings are not drawn according to the actual proportional relationship.

[0057] Additionally, descriptions of well-known structures, functions, and configurations may be omitted for clarity and conciseness.One of ordinary skill in the art will recognize that various changes and modifications may be made to the examples described herein without departing from the spirit and scope of the present disclosure.

[0058] Technologies, methods, and apparatus known to ordinary technicians in the relevant field may not be discussed in detail, but where appropriate, such technologies, methods, and apparatus should be considered part of the authorization specification.

[0059] In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limiting. Therefore, other examples of the exemplary embodiments may have different values.

[0060] In the prior art, such as Figure 1-Figure 2 As shown in FIG. 1 , the traditional frequency conversion TR component test system includes a vector network analyzer, a reference mixer, a switch matrix, and a frequency conversion TR component, wherein the RF port, IF port, and LO port of the reference mixer are respectively connected to the vector network analyzer, and the reference mixer is used to increase or decrease the baseband signal to the frequency required for the frequency conversion TR component to transmit or receive. Therefore, when testing the frequency conversion TR component, it is necessary to manually adjust the cable between the vector network analyzer and the reference mixer according to different test scenarios.

[0061] like Figure 1 As shown, when testing the receiving frequency conversion phase of the frequency conversion TR component, the reference input port of the vector network analyzer is connected to the IF port of the reference mixer, and the reference output port is connected to the RF port of the mixer. The signal flow direction is that the signal output from the reference output port of the vector network analyzer is input from the RF port of the reference mixer through a cable, and then output from the IF port of the reference mixer to the reference input port of the vector network analyzer. Then start the automatic test software to execute the receiving phase test item, call the receiving phase calibration file of the vector network, switch the switch matrix link according to the current frequency conversion TR component test channel, and then control the power supply to provide the voltage required for the normal operation of the frequency conversion TR component. Finally, the frequency conversion TR component is controlled to the receiving mode through wave control to complete the receiving frequency conversion phase test of the frequency conversion TR component.

[0062] like Figure 2As shown, when testing the transmission frequency conversion phase of the frequency conversion TR component, it is necessary to manually connect the reference input port of the vector network analyzer to the RF port of the reference mixer, and the reference output port to the IF port of the mixer, that is, unplug the cables of the reference input port and the reference output port of the vector network analyzer and then swap them. At this time, the signal flow direction is that the signal output from the reference output port of the vector network analyzer is input from the IF port of the reference mixer through the cable, and then output from the RF port of the reference mixer to the reference input port of the vector network analyzer. Then start the automatic test software to execute the receiving phase test item, call the receiving phase calibration file of the vector network, switch the switch matrix link according to the current frequency conversion TR component test channel, and then control the power supply to provide the voltage required for the normal operation of the frequency conversion TR component, and finally control the frequency conversion TR component to the receiving mode through wave control to complete the receiving frequency conversion phase test of the frequency conversion TR component.

[0063] It can be seen that during the receiving phase test and the transmitting phase test, the cable head needs to be unplugged and reconnected, which is cumbersome and easy to confuse. In this regard, the present application proposes the following solutions:

[0064] Example 1

[0065] like Figure 3-Figure 5 As shown, this embodiment provides a vector variable frequency phase automatic test system, including a vector network analyzer, a reference mixer, a switch matrix, a switching switch and a variable frequency TR component, wherein the switch matrix is ​​communicatively connected with the variable frequency TR component, and is used to switch the switch link to a test channel corresponding to the current phase test type to be tested of the variable frequency TR component;

[0066] The ports of the switching switch are respectively connected to a vector network analyzer and a reference mixer, and are used to switch the signal connection channel between the vector network analyzer and the reference mixer according to the current phase test type to be tested of the frequency conversion TR component;

[0067] The vector network analyzer is communicatively connected with the switch matrix, and is used to receive the data to be tested according to the test channel switched from the switch matrix, and complete the phase test of the frequency conversion TR component in combination with the reference mixer;

[0068] The reference mixer is connected to the vector network analyzer through a switching switch, and is used to provide a phase test reference for the vector network analyzer in a mixing working mode;

[0069] Automated test software, used to complete the configuration and automated control of the vector network analyzer, reference mixer, switch matrix, switching switch and frequency conversion TR components, and complete the communication interaction with the wave control module;

[0070] The wave control module is used to complete the test channel switching of the frequency conversion TR component and the switching of the wave position state to be tested.

[0071] Specifically, when the switching switch adopts a double-pole double-throw switch, the double-pole double-throw switch includes four ports, each port is actually a contact of the switch, and when the switch is switched to connect the corresponding contact, the two contacts are turned on. Port 1 of the double-pole double-throw switch is connected to the reference output port of the vector network analyzer, port 2 of the double-pole double-throw switch is connected to the reference input port of the vector network analyzer, port 3 of the double-pole double-throw switch is connected to the RF port of the reference mixer, and port 4 of the double-pole double-throw switch is connected to the IF port of the reference mixer; at this time, the receiving and transmitting phase test process of the frequency conversion TR component can be switched only by switching the double-pole double-throw switch, so that the receiving phase test and the transmitting phase test process are switched, and there is no need for the tester to manually replace the cable connector, thereby improving the efficiency of automatic testing.

[0072] like Figure 3 As shown in the figure, when the receiving phase test is being performed, the double-pole double-throw switch switches the internal switch to connect port 1 and port 3, and port 2 and port 4 are connected. Then the signal flow direction of the signal connection channel between the vector network analyzer and the reference mixer is:

[0073] The original signal is output from the reference output port of the vector network analyzer. After being switched by the double-pole double-throw switch, the signal is output from port 1 and port 3 of the double-pole double-throw switch to the RF port of the reference mixer in turn. Then, after being mixed by the reference mixer, the IF signal is output from the IF port of the reference mixer. The IF signal flows from port 4 to port 2 of the double-pole double-throw switch in turn, and then is input into the reference input port of the vector network analyzer to provide the frequency conversion switch matrix with a down-converted IF signal.

[0074] like Figure 5 As shown, when the transmission phase test process is carried out, the double-pole double-throw switch connects port 1 and port 4, and port 2 and port 3 are connected. At this time, the signal flow direction of the signal connection channel between the vector network analyzer and the reference mixer is: the original signal is output from the reference output port of the vector network analyzer, and after being switched by the double-pole double-throw switch, the signal is sequentially output to the IF port of the reference mixer through port 1 and port 4 of the double-pole double-throw switch, and then the RF signal is output from the RF port of the reference mixer after being mixed by the reference mixer. The RF signal sequentially flows from port 3 of the double-pole double-throw switch to port 2, is input to the reference input port of the vector network analyzer, and then provides the up-converted RF signal to the frequency conversion switch matrix.

[0075] Example 2

[0076] like Figure 6 As shown, this embodiment 2 is based on the test system of the present application of embodiment 1, and provides a vector frequency conversion phase automatic test method, and the following steps are performed in the automated test software:

[0077] S1. Load the test items of the receiving phase test and the transmitting phase test and the receiving phase calibration file and the transmitting phase calibration file respectively;

[0078] S2. According to the currently required phase test type, the vector network analyzer, the reference mixer, the switch matrix, the switching switch and the variable frequency TR component to be tested are configured, and the power supply is controlled to power on the variable frequency TR component to provide the voltage required for normal operation of the variable frequency TR component; the phase test type includes receiving phase test and transmitting phase test;

[0079] The specific process of configuring each test equipment and the variable frequency TR component to be tested is as follows:

[0080] S21, sending the parameters required for the test items corresponding to the currently required phase test type to the frequency conversion TR component for configuration, and controlling the frequency conversion TR component to switch to the mode corresponding to the current phase test type and opening the corresponding test channel through the wave control module;

[0081] S22, controlling the link of the switch matrix to switch to the test channel corresponding to the variable frequency TR component, connecting the test channel between the vector network analyzer and the variable frequency TR component;

[0082] S23. According to the currently required phase test type, control the switching switch to conduct the signal connection channel corresponding to the test mode between the reference mixer and the vector network analyzer.

[0083] S3, using the phase calibration file corresponding to the currently required phase test type to calibrate the frequency conversion TR component to be tested, after the calibration is completed, executing the test item corresponding to the currently required phase test type to complete the test;

[0084] S4, switching the phase test type, controlling the switch to switch the signal connection channel between the vector network analyzer and the reference mixer to the corresponding test mode, and repeating steps S2-S3.

[0085] In order to reduce the error, the frequency conversion TR component needs to be calibrated using the receiving phase calibration file before performing the test. After the calibration is completed, execute the receiving phase test item and perform automatic testing to complete the receiving phase test of the frequency conversion TR component.

[0086] Specifically, if the first test is the receiving phase test, the current phase test type to be tested is the receiving phase test, and the test process is:

[0087] S100, sending the parameters required for the test items of the receiving phase test to the frequency conversion TR component for configuration, and controlling the frequency conversion TR component to switch to the receiving mode through the wave control module to open the receiving test channel of the frequency conversion TR component;

[0088] S200, controlling the link of the switch matrix to switch to the receiving test channel of the frequency conversion TR component, connecting the receiving test channel between the vector network analyzer and the frequency conversion TR component;

[0089] S300, controlling the switching switch to switch the signal connection channel between the reference mixer and the vector network analyzer to a receiving mode, so that the reference mixer acts as a down converter to output an IF signal to the vector network analyzer;

[0090] Specifically, the switching switch adopts a double-pole double-throw switch. When the signal connection channel between the reference mixer and the vector network analyzer is in the receiving mode in step S300, the switching process is:

[0091] Controlling the double-pole double-throw switch to conduct port 1 and port 3 of the double-pole double-throw switch, so that the signal output from the reference output port of the vector network analyzer is output from port 1 and port 3 of the double-pole double-throw switch to the RF port of the reference mixer in sequence;

[0092] The double-pole double-throw switch is controlled to turn on port 2 and port 4 of the double-pole double-throw switch, so that the signal output from the IF port of the reference mixer is input to the reference input port of the vector network analyzer from port 4 and port 2 of the double-pole double-throw switch in sequence.

[0093] S400, calibrate the frequency conversion TR component to be tested using the receiving phase calibration file, and after the calibration is completed, execute a test item of the receiving phase test type to automatically complete the receiving phase test process.

[0094] If you want to continue the transmit phase test at this time, you do not need to manually change the cable connection. You only need to control the switch to switch the port connection between the reference mixer and the vector network analyzer, so that the reference mixer becomes an up-converter to output the RF signal to the vector network analyzer; then the status of other devices is correspondingly switched to the transmit phase test. The specific process is as follows:

[0095] S110, sending the parameters required for the test items of the transmission phase test to the variable frequency TR component for configuration, and controlling the variable frequency TR component to switch to the transmission mode through the wave control module to open the transmission test channel of the variable frequency TR component;

[0096] S210, controlling the link of the switch matrix to switch to the transmission test channel of the variable frequency TR component, connecting the transmission test channel between the vector network analyzer and the variable frequency TR component;

[0097] S310, controlling the switching switch to switch the signal connection channel between the reference mixer and the vector network analyzer to a transmission mode, so that the reference mixer acts as an up-converter to output an RF signal to the vector network analyzer;

[0098] Specifically, the switching switch adopts a double-pole double-throw switch. When the signal connection channel between the reference mixer and the vector network analyzer is in the transmission mode in step S310, the switching process is:

[0099] Controlling the double-pole double-throw switch to conduct port 1 and port 4 of the double-pole double-throw switch, so that the signal output from the reference output port of the vector network analyzer is output from port 1 and port 4 of the double-pole double-throw switch to the IF port of the reference mixer in sequence;

[0100] The double-pole double-throw switch is controlled to turn on port 2 and port 3 of the double-pole double-throw switch, so that the signal output from the RF port of the reference mixer is input to the reference input port of the vector network analyzer from port 3 and port 2 of the double-pole double-throw switch in sequence.

[0101] S410, calibrate the frequency conversion TR component to be tested using the receiving phase calibration file, and after the calibration is completed, execute a test item of the receiving phase test type to automatically complete the receiving phase test process.

[0102] It can be seen that since the bandwidth of the device to be tested is relatively wide, a reference mixer with a higher bandwidth needs to be matched during testing. When the bandwidth of the reference mixer is relatively wide, the transceiver end cannot be shared. Therefore, during testing, if the transceiver conditions need to be changed, it is necessary to unplug the cables at both ends of the reference mixer to switch the transceiver mode. Continuous testing is not possible, and each plugging and unplugging will waste time and reduce work efficiency. Therefore, the present application realizes the switching of the transceiver mode by setting a double-pole double-throw switch between the vector network analyzer and the reference mixer, so that continuous testing of the transceiver mode can be performed to avoid plugging and unplugging the cable. The receiving phase test and transmitting phase test process of the present application is to execute the receiving and transmitting phase test items through the automated test software, switch the switch matrix link according to the current variable frequency TR component test channel, and then control the power supply to provide the voltage required for the normal operation of the variable frequency TR component. Finally, the wave control module controls the variable frequency TR component to be in the receiving mode and the transmitting mode in turn, and completes the receiving and transmitting variable frequency phase test of the variable frequency TR component at one time. The test link is switched by software-controlled switching switches. Automatic switching eliminates the need for manual cable replacement before testing, solving the tedious operation of changing cables in the middle of the traditional transceiver phase test process. This greatly improves the efficiency of automatic testing and reduces the uncertainty errors caused by manual operation.

[0103] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. According to the technical essence of the present invention, within the spirit and principles of the present invention, any simple modification, equivalent replacement and improvement made to the above embodiment still falls within the protection scope of the technical solution of the present invention.

Claims

1. A vector frequency conversion phase automatic test system, characterized in that: include: Vector network analyzer, reference mixer, switch matrix, switching switch, frequency conversion TR component, automated test software and wave control module, among which, The switch matrix is ​​in communication connection with the variable frequency TR component, and is used to switch the switch link to the test channel corresponding to the test type of the current phase to be tested of the variable frequency TR component; The ports of the switching switch are respectively connected to a vector network analyzer and a reference mixer, and are used to switch the signal connection channel between the vector network analyzer and the reference mixer according to the current phase test type to be tested of the frequency conversion TR component; The switching switch adopts a double-pole double-throw switch, port 1 of the double-pole double-throw switch is connected to the reference output port of the vector network analyzer, port 2 of the double-pole double-throw switch is connected to the reference input port of the vector network analyzer, port 3 of the double-pole double-throw switch is connected to the RF port of the reference mixer, and port 4 of the double-pole double-throw switch is connected to the IF port of the reference mixer; The vector network analyzer is communicatively connected with the switch matrix, and is used to receive the data to be tested according to the test channel switched from the switch matrix, and complete the phase test of the frequency conversion TR component in combination with the reference mixer; Automated test software, used to complete the configuration and automated control of the vector network analyzer, reference mixer, switch matrix, switching switch and frequency conversion TR components, and complete the communication interaction with the wave control module; The wave control module is used to complete the test channel switching of the frequency conversion TR component and the switching of the wave position state to be tested.

2. A vector frequency conversion phase automatic test system according to claim 1, characterized in that: If the test item of the phase test to be tested of the frequency conversion TR component is the receiving phase test, the signal connection channel between the vector network analyzer and the reference mixer is: The signal output from the output end of the vector network analyzer is switched by the double-pole double-throw switch, so that the signal is output from port 1 and port 3 of the double-pole double-throw switch to the RF port of the reference mixer in turn, and then the IF signal is output from the IF port of the reference mixer after mixing by the reference mixer. The IF signal flows from port 4 of the double-pole double-throw switch to port 2 in turn, and then is input to the reference input port of the vector network analyzer.

3. The vector frequency conversion phase automatic test system according to claim 1 is characterized in that: If the test item of the phase test to be tested of the frequency conversion TR component is the transmission phase test, the signal connection channel between the vector network analyzer and the reference mixer is: The signal output from the output end of the vector network analyzer is switched by the double-pole double-throw switch, so that the signal is output to the IF port of the reference mixer through port 1 and port 4 of the double-pole double-throw switch in turn, and then output from the RF port of the reference mixer after mixing by the reference mixer. The RF signal flows from port 3 of the double-pole double-throw switch to port 2 in turn and is input to the reference input port of the vector network analyzer.

4. A vector frequency conversion phase automatic test method, applied to a vector frequency conversion phase automatic test system as claimed in claim 1, characterized in that: The following steps are involved: S1. Load the test items of the receiving phase test and the transmitting phase test and the receiving phase calibration file and the transmitting phase calibration file respectively; S2. Configure the vector network analyzer, reference mixer, switch matrix, switching switch and frequency conversion TR component to be tested according to the phase test type currently required; the phase test type includes receiving phase test and transmitting phase test; S3, using the phase calibration file corresponding to the currently required phase test type to calibrate the frequency conversion TR component to be tested, after the calibration is completed, executing the test item corresponding to the currently required phase test type to complete the test; S4, switching the phase test type, controlling the switch to switch the signal connection channel between the vector network analyzer and the reference mixer to the corresponding test mode, and repeating steps S2-S3.

5. A vector frequency conversion phase automatic testing method according to claim 4, characterized in that: The specific process of step S2 is: S21, sending the parameters required for the test items corresponding to the currently required phase test type to the frequency conversion TR component for configuration, and controlling the frequency conversion TR component to switch to the mode corresponding to the current phase test type and opening the corresponding test channel through the wave control module; S22, controlling the link of the switch matrix to switch to the test channel corresponding to the variable frequency TR component, connecting the test channel between the vector network analyzer and the variable frequency TR component; S23. According to the currently required phase test type, control the switching switch to conduct the signal connection channel corresponding to the test mode between the reference mixer and the vector network analyzer.

6. A vector frequency conversion phase automatic testing method according to claim 4, characterized in that: If the current phase test type required is the receiving phase test, the test process is as follows: S100, sending the parameters required for the test items of the receiving phase test to the frequency conversion TR component for configuration, and controlling the frequency conversion TR component to switch to the receiving mode through the wave control module to open the receiving test channel of the frequency conversion TR component; S200, controlling the link of the switch matrix to switch to the receiving test channel of the frequency conversion TR component, connecting the receiving test channel between the vector network analyzer and the frequency conversion TR component; S300, controlling the switching switch to switch the signal connection channel between the reference mixer and the vector network analyzer to a receiving mode, so that the reference mixer acts as a down converter to output an IF signal to the vector network analyzer; S400, calibrate the frequency conversion TR component to be tested using the receiving phase calibration file, and after the calibration is completed, execute a test item of the receiving phase test type to automatically complete the receiving phase test process.

7. A vector frequency conversion phase automatic testing method according to claim 4, characterized in that: If the current phase test type required is the transmission phase test, the test process is as follows: S110, sending the parameters required for the test items of the transmission phase test to the variable frequency TR component for configuration, and controlling the variable frequency TR component to switch to the transmission mode through the wave control module to open the transmission test channel of the variable frequency TR component; S210, controlling the link of the switch matrix to switch to the transmission test channel of the variable frequency TR component, connecting the transmission test channel between the vector network analyzer and the variable frequency TR component; S310, controlling the switching switch to switch the signal connection channel between the reference mixer and the vector network analyzer to a transmission mode, so that the reference mixer acts as an up-converter to output an RF signal to the vector network analyzer; S410, calibrate the frequency conversion TR component to be tested using the receiving phase calibration file, and after the calibration is completed, execute a test item of the receiving phase test type to automatically complete the receiving phase test process.

8. The vector frequency conversion phase automatic testing method according to claim 6 is characterized in that: The switching switch adopts a double-pole double-throw switch. When the signal connection channel between the reference mixer and the vector network analyzer is in the receiving mode in step S300, the switching process is: Controlling the double-pole double-throw switch to conduct port 1 and port 3 of the double-pole double-throw switch, so that the signal output from the reference output port of the vector network analyzer is output from port 1 and port 3 of the double-pole double-throw switch to the RF port of the reference mixer in sequence; The double-pole double-throw switch is controlled to turn on port 2 and port 4 of the double-pole double-throw switch, so that the signal output from the IF port of the reference mixer is input to the reference input port of the vector network analyzer from port 4 and port 2 of the double-pole double-throw switch in sequence.

9. The vector frequency conversion phase automatic testing method according to claim 7 is characterized in that: The switching switch adopts a double-pole double-throw switch. When the signal connection channel between the reference mixer and the vector network analyzer is in the transmission mode in step S310, the switching process is as follows: Controlling the double-pole double-throw switch to conduct port 1 and port 4 of the double-pole double-throw switch, so that the signal output from the reference output port of the vector network analyzer is output from port 1 and port 4 of the double-pole double-throw switch to the IF port of the reference mixer in sequence; The double-pole double-throw switch is controlled to turn on port 2 and port 3 of the double-pole double-throw switch, so that the signal output from the RF port of the reference mixer is input to the reference input port of the vector network analyzer from port 3 and port 2 of the double-pole double-throw switch in sequence.

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