WO2018072458A1

WO2018072458A1 - Microwave converter input isolation testing method and system

Info

Publication number: WO2018072458A1
Application number: PCT/CN2017/087887
Authority: WO
Inventors: 何宏平; 刘俊杰; 潘雄广; 詹宇昕
Original assignee: 华讯方舟科技有限公司; 华讯方舟科技（湖北）有限公司
Priority date: 2016-10-17
Filing date: 2017-06-12
Publication date: 2018-04-26
Also published as: CN106556755A; CN106556755B

Abstract

A microwave converter input isolation testing method, relating to the technical field of isolation level testing. The method comprises: generating a radio frequency signal in a working frequency range simulating a device to be tested (3) by means of a signal generator (1) and transmitting the radio frequency signal to a bridge (2) (S101); outputting the radio frequency signal to a network analyzer (4) and a first polarization port (31) of the device to be tested (3) after being processed by the bridge (2) (S102); the device to be tested (3) transmitting a radio frequency signal leaking from the first polarization port (31) into a second polarization port (32) to the network analyzer (4) by means of the second polarization port (32) (S103); and the network analyzer (4) calculating an input isolation level between the first polarization port (31) and the second polarization port (32) according to the radio frequency signal output by the second polarization port (32) of the device to be tested (3) and the radio frequency signal output by the bridge (2) (S104). Said technical solution may accurately test the input isolation level of a microwave converter product and provide data reference for product development and debugging.

Description

Microwave frequency converter input isolation test method and system

[0001] The present invention belongs to the technical field of isolation testing, and in particular, to a method and system for input isolation testing of a microwave frequency converter.

Background technique

[0002] With the development of science and technology, the microwave inverter industry is also more and more, and the competition is becoming more and more fierce. At present, microwave inverters generally include multiple frequencies and multiple channels, which can divide more frequency bands into different operators within a limited spectrum range. However, some microwave inverter products may have poor input isolation between channels at certain frequency points, resulting in no signal and affecting the use, which affects the user experience and seriously affects the competition of products in the industry. Advantage.

technical problem

[0003] An object of the embodiments of the present invention is to provide a method for input isolation test of a microwave frequency converter, which aims to solve the problem that some of the microwave frequency converter products may have poor input isolation between channels at certain frequency points. It leads to no signal and affects the use, which affects the user experience and seriously affects the competitive advantage of the product in the industry.

Problem solution

Technical solution

The embodiment of the present invention is implemented as follows. A microwave inverter input isolation test method includes: [0005] generating, by a signal generator, a radio frequency signal in a working frequency range of a device under test, and the radio frequency signal Transfer to the bridge;

[0006] the radio frequency signal is processed by the bridge and output to the network analyzer and the first polarization port of the device to be tested;

[0007] the device under test transmits a radio frequency signal leaking from the first polarization port to the second polarization port to the network analyzer through the second polarization port;

[0008] the network analyzer calculates the first polarized port and the second polarized port according to the radio frequency signal output by the second polarized port of the device under test and the radio frequency signal output by the bridge. Input isolation [0009] On the basis of the foregoing technical solution, the network analyzer calculates the first polarization according to the radio frequency signal output by the second polarized port of the device to be tested and the radio frequency signal output by the bridge. The input isolation between the port and the second polarized port specifically includes:

[0010] acquiring a first power of a radio frequency signal output by the second polarized port of the device under test and a second power of the radio frequency signal output by the bridge, and calculating the first power and the second power The ratio is the input isolation between the first polarized port and the second polarized port.

[0011] On the basis of the foregoing technical solution, the device under test transmits a radio frequency signal leaking from the first polarization port to the second polarization port to the network analyzer through the second polarization port. Previously included:

[0012] performing high frequency detection on the radio frequency signal leaking from the first polarization port to the second polarization port, and determining whether the frequency of the radio frequency signal is within a preset frequency range;

[0013] if within a preset frequency range, transmitting the radio frequency signal to the network analyzer for processing.

[0014] Based on the above technical solution, the preset frequency range is 10 MHz to 18 GHz.

[0015] On the basis of the foregoing technical solution, the network analyzer calculates the first polarization according to the radio frequency signal output by the bridge and the radio frequency signal output by the second polarization port of the device under test. The input isolation between the port and the second polarized port further includes:

[0016] determining whether the input isolation is in compliance with a preset isolation criterion;

[0017] If the preset isolation criteria are not met, the tester is prompted.

[0018] Another object of the embodiments of the present invention is to provide a microwave inverter input isolation test system, including a signal generator, a bridge, a device to be tested, and a network analyzer, where the device to be tested includes a first polarization port. And a second polarization port, the signal generator is connected to an input end of the bridge, and an output end of the bridge is connected to a first input end of the network analyzer and a first end of the object to be tested a polarization port, the second polarization port of the object to be tested is connected to a second input port of the network analyzer, where:

[0019] the signal generator is configured to generate a radio frequency signal within a working frequency range of the device under test, and transmit the radio frequency signal to the bridge;

[0020] the bridge is configured to output the radio frequency signal to the network analyzer and the first polarization port of the device to be tested after processing the radio frequency signal;

[0021] the device to be tested is configured to leak from the first polarization port to the second pole through the second polarization port Transmitting radio frequency signals in the port to the network analyzer;

[0022] the network analyzer is configured to calculate the first polarized port and the second pole according to the radio frequency signal output by the second polarized port of the device under test and the radio frequency signal output by the bridge Input isolation between ports.

[0023] On the basis of the foregoing technical solutions, the network analyzer is specifically configured to:

[0024] acquiring a first power of the radio frequency signal output by the second polarized port of the device under test and a second power of the radio frequency signal output by the bridge, and calculating the first power and the second power The ratio is the input isolation between the first polarized port and the second polarized port.

[0025] Based on the foregoing technical solution, the method further includes: a high frequency detector connected between the second polarization port and the network analyzer, wherein:

[0026] the high frequency detector is configured to perform high frequency detection on the radio frequency signal leaking from the first polarization port to the second polarization port, and determine whether the frequency of the radio frequency signal is at a preset frequency. Within the range; if within the preset frequency range, the radio frequency signal is transmitted to the network analyzer for processing.

[0027] On the basis of the above technical solution, the preset frequency range is 10 MHz to 18 GHz.

[0028] On the basis of the foregoing technical solutions, the network analyzer is further configured to:

[0029] determining whether the input isolation is in compliance with a preset isolation criterion;

[0030] If the preset isolation criteria are not met, the tester is prompted.

Advantageous effects of the invention

Beneficial effect

[0031] A microwave inverter input isolation test method and system provided by embodiments of the present invention have the following beneficial effects:

[0032] In the embodiment of the present invention, a radio frequency signal in a working frequency range of the device under test is generated by the signal generator, and the radio frequency signal is transmitted to the bridge; the radio frequency signal is processed by the bridge and output to the a network analyzer and a first polarization port of the device under test; the device under test transmits a radio frequency signal leaking from the first polarization port to a second polarization port through a second polarization port to The network analyzer calculates the first polarized port and the second pole according to the radio frequency signal output by the second polarized port of the device under test and the radio frequency signal output by the bridge Input isolation between the ports, so that the input isolation of the microwave inverter product can be accurately tested, and the product development and debugging can be improved. For data reference, to improve product competitiveness in terms of product characteristics and comprehensive testing, higher than the same industry level.

Brief description of the drawing

DRAWINGS

1 is a schematic flow chart of a method for input isolation test of a microwave frequency converter according to an embodiment of the present invention; [0034] FIG. 2 is a schematic diagram of an input isolation test method for a microwave frequency converter according to another embodiment of the present invention; Schematic flow chart;

3 is a schematic block diagram of a microwave inverter input isolation test system according to an embodiment of the present invention; [0036] FIG. 4 is a microwave inverter input isolation test system according to another embodiment of the present invention; Schematic block diagram;

5 is a schematic block diagram of a microwave inverter input isolation test system according to still another embodiment of the present invention.

Embodiments of the invention

The present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It is understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

1 is a schematic flow chart of a method for input isolation test of a microwave frequency converter according to an embodiment of the present invention.

Referring to FIG. 1, the method may include the following steps:

[0040] In S101, a radio frequency signal in a working frequency range of the device under test is generated by the signal generator, and the radio frequency signal is transmitted to the bridge.

In this embodiment, the device to be tested includes two polarization ports, horizontal and vertical. In this embodiment, the first and second polarization ports are distinguished by the first and the second. Further, in this embodiment, the signal generator can generate a radio frequency signal in a frequency range of 0 to 20 GHz.

[0042] In S102, the radio frequency signal is processed by the bridge and output to the network analyzer and the first polarization port of the device to be tested.

[0043] In this embodiment, since the radio frequency signal frequency receiving range of the device under test of the normal microwave inverter product is 10.7-12.75 GHz, the radio frequency signal output by the signal generator needs to be frequency-transmitted by the bridge. Rate conversion, converting the radio frequency signal into a signal that the device under test can receive in a frequency unit, further, the switching frequency of the bridge is 10M~18GHZ; the bridge is performing frequency on the radio frequency signal After the conversion, the converted RF signal is divided into two paths, one is transmitted as an input signal of the device to be tested to the first polarization port of the device to be tested, and the other is transmitted as a test reference signal to the network analyzer. .

[0044] In S103, the device under test transmits a radio frequency signal leaking from the first polarization port to the second polarization port to the network analyzer through the second polarization port.

[0045] In this embodiment, due to various factors, the radio frequency signal input to the first polarization port of the device under test may partially leak to the second polarization port of the device under test, and therefore, the A second polarized port of the device under test is connected to the network analyzer, and transmits the leaked radio frequency signal to the network analyzer through the second polarized port.

[0046] In S104, the network analyzer calculates the first polarization port and the second according to the radio frequency signal output by the second polarization port of the device under test and the radio frequency signal output by the bridge. Input isolation between polarized ports.

[0047] In this embodiment, the network analyzer calculates the isolation between the two polarization ports according to the received test reference signal and the radio frequency signal leaking to the second polarization port. :

[0048] the network analyzer obtains a first power of a radio frequency signal output by the second polarized port of the device to be tested, and a second power of the radio frequency signal output by the bridge, and calculates the first power and the The ratio of the second power is the input isolation between the first polarization port and the second polarization port. In this way, the tester can judge whether the input isolation effect of the device under test is up to standard according to the isolation between the two polarization ports of the device under test, and provide data reference for product development and debugging.

[0049] In summary, it can be seen that the microwave inverter input isolation test method provided by the embodiment generates a radio frequency signal in a working frequency range of the device under test by using a signal generator, and transmits the radio frequency signal to the radio frequency signal. The radio frequency signal is processed by the bridge and output to the network analyzer and the first polarization port of the device under test; the device to be tested passes through the second polarization port from the first Transmitting, to the network analyzer, a radio frequency signal leaking into the second polarization port in the polarization port; the network analyzer outputting the radio frequency signal according to the second polarization port of the device to be tested and the bridge output The RF signal calculates the input isolation between the first polarized port and the second polarized port, so that the accurate The input isolation of the microwave inverter product was tested, and the data reference was provided for the product development and debugging, so that the product characteristics and all-round testing were higher than the same industry level, and the competitiveness of the product was improved.

2 is a schematic flow chart of a method for input isolation test of a microwave frequency converter according to another embodiment of the present invention. As shown in FIG. 2, with respect to the previous embodiment, a microwave inverter input isolation test method is provided in the embodiment, where the device under test passes through the second polarization port and will be from the first polarization port. Before the RF signal leaking into the second polarization port is transmitted to the network analyzer, the method further includes:

[0051] In S203, performing high frequency detection on the radio frequency signal leaking from the first polarization port to the second polarization port, determining whether the frequency of the radio frequency signal is within a preset frequency range; Within the preset frequency range, the radio frequency signal is transmitted to the network analyzer for processing.

[0052] In this embodiment, the radio frequency signal input to the network analyzer is detected by the high frequency detector, and the frequency of the radio frequency signal is transmitted to the network analyzer only after the frequency of the radio frequency signal is within a preset range. The processing is performed. When the frequency of the radio frequency signal exceeds the preset range, the radio frequency signal is discarded, so that the network analyzer can be protected, and the high frequency radio frequency signal is prevented from causing damage to the network analyzer. Further, in this embodiment, the preset frequency range is 10 MHz to 18 GHz.

[0053] Further, in the embodiment, in the embodiment, the network analyzer calculates the radio frequency signal output by the bridge and the radio frequency signal output by the second polarization port of the device under test. After the input isolation between the first polarized port and the second polarized port is obtained, the method further includes:

[0054] In S206, determining whether the input isolation is in compliance with a preset isolation criterion;

[0055] In S207, if the preset isolation criterion is not met, the tester is prompted.

[0056] In this embodiment, after obtaining the input isolation between the two polarization ports of the device under test, the network analyzer further compares it with the preset isolation standard to determine whether it meets the requirements. Preset the isolation standard and remind the tester if it does not meet the preset isolation criteria. This eliminates the need for the tester to manually determine whether the input isolation effect of the device under test meets the preset isolation criteria, which further simplifies the tester. The steps of the operation improve the efficiency of the test.

[0057] It should be noted that the implementation manners of step S201 to step S201 and step S204 to step S205 in this embodiment are completely the same as steps S101 to S104 in the embodiment shown in FIG. Let me repeat.

[0058] As can be seen from the above, the input isolation test method of the microwave frequency converter provided by the embodiment is also applicable. It has tested the input isolation of microwave inverter products and provided data reference for product development and debugging, so as to improve the competitiveness of products in terms of product characteristics and comprehensive testing, which is higher than the same industry level; and, compared with the previous embodiment, In this embodiment, the network analyzer is also protected by the high frequency detection to avoid the problem that the network analyzer is damaged due to receiving the high frequency radio frequency signal; in addition, the input isolation of the device under test may not meet the preset standard, The tester is automatically prompted to further simplify the tester's operating procedures and improve test efficiency.

3 is a microwave inverter input isolation test system according to an embodiment of the present invention, and only parts related to the embodiment are shown for convenience of explanation.

[0060] Referring to FIG. 3, a microwave inverter input isolation test system provided by this embodiment includes a signal generator 1, a bridge 2, a device under test 3, and a network analyzer 4, and the device under test 3 A first polarization port and a second polarization port are included, the signal generator 1 is connected to an input of the bridge 2, and an output of the bridge 2 is connected to a first input of the network analyzer 4. And a first polarization port 31 of the object to be tested, the second polarization port 32 of the object to be tested is connected to a second input port of the network analyzer 4, wherein: [0061] the signal is generated The device 1 is configured to generate a radio frequency signal in a working frequency range of the device under test 3, and transmit the radio frequency signal to the bridge 2;

[0062] The bridge 2 is configured to process the radio frequency signal and output the radio frequency signal to the network analyzer 4 and the first polarization port 31 of the device under test 3;

The device under test 3 is configured to transmit, by using the second polarization port 32, a radio frequency signal leaking from the first polarization port 31 into the second polarization port 32 to the network analyzer 4 ;

[0064] The network analyzer 4 is configured to calculate the first polarized port according to the radio frequency signal output by the second polarized port 32 of the device under test 3 and the radio frequency signal output by the bridge 2 Input isolation between 31 and second polarized port 32.

[0065] Optionally, the network analyzer 4 is specifically configured to:

Obtaining a first power of the radio frequency signal output by the second polarization port 32 of the device under test 3 and a second power of the radio frequency signal output by the bridge 2, and calculating the first power and the first The ratio of the two powers is the input isolation between the first polarization port 31 and the second polarization port 32.

[0067] Optionally, referring to FIG. 4, in another embodiment, the microwave inverter input isolation test system further includes being connected between the second polarization port 32 and the network analyzer 4. High frequency detector, where [0068] The high frequency detector is configured to perform high frequency detection on the radio frequency signal leaking from the first polarization port 31 to the second polarization port 32, and determine whether the frequency of the radio frequency signal is in advance The frequency range is set; if it is within the preset frequency range, the radio frequency signal is transmitted to the network analyzer 4 for processing.

[0069] Optionally, the preset frequency range is 10 MHz to 18 GHz.

[0070] Optionally, the network analyzer 4 is further configured to:

[0071] determining whether the input isolation is in compliance with a preset isolation criterion;

[0072] If the preset isolation criteria are not met, the tester is prompted.

[0073] It is to be noted that the respective units in the terminal provided in this embodiment are based on the same concept in the method embodiment of the present invention, and the technical effects thereof are the same as the method embodiment of the present invention. For details, refer to the method implementation of the present invention. The description in the example will not be repeated here.

[0074] Therefore, it can be seen that the input and isolation test system of the microwave frequency converter provided by the embodiment of the invention can also accurately test the input isolation of the microwave frequency converter product, and provide data reference for product development and debugging, so as to The azimuth test is higher than the same industry level and improves the competitiveness of the products.

[0075] FIG. 5 is a schematic block diagram of a terminal according to another embodiment of the present invention. The terminal in this embodiment as shown may include: one or more processors 501; one or more input devices 502, one or more output devices 503 and memory 504. The above processor 501, input device 502, output device 503, and memory 504 are connected by a bus 505. The memory 502 is for storing instructions, and the processor 501 is for executing instructions stored by the memory 502. The processor 501 is configured to invoke the program code to perform the steps in the microwave inverter input isolation test method provided in any of the embodiments shown in FIG. 1 or FIG. For example, the processor can be configured to invoke the program code, performing the following steps:

[0076] generating, by the signal generator, a radio frequency signal in a working frequency range of the device under test, and transmitting the radio frequency signal to the bridge;

[0077] the radio frequency signal is processed by the bridge and output to the network analyzer and the first polarization port of the device to be tested;

[0078] the device under test transmits a radio frequency signal leaking from the first polarization port to the second polarization port to the network analyzer through the second polarization port;

[0079] the network analyzer outputs a radio frequency signal and the bridge according to the second polarization port of the device to be tested The output RF signal calculates the input isolation between the first polarized port and the second polarized port

[0080] It should be understood that, in the embodiment of the present invention, the so-called processor 501 may be a central processing unit (CPU), and the processor may also be other general-purpose processors, digital signal processors (Digital Signal Processor) , DSP), Application Specific Integrated Circuit (ASIC), Field-Programmable Gate Array (FPGA) or other programmable logic device, discrete gate or transistor logic device, discrete hardware component, etc. The general purpose processor may be a microprocessor or the processor or any conventional processor or the like.

[0081] The input device 502 may include a touch panel, a fingerprint sensor (for collecting fingerprint information of the user and direction information of the fingerprint), a microphone, and the like, and the output device 503 may include a display (LCD or the like), a speaker, and the like.

[0082] The memory 504 can include read only memory and random access memory and provides instructions and data to the processor 501. A portion of memory 504 may also include non-volatile random access memory. For example, the memory 504 can also store information of the device type.

In a specific implementation, the processor 501, the input device 502, and the output device 503 described in the embodiments of the present invention may be described in the first embodiment and the second embodiment of the method provided by the embodiment of the present invention. The implementation manner of the terminal described in the embodiment of the present invention may also be implemented, and details are not described herein again.

[0084] In another embodiment of the present invention, a computer readable storage medium is stored, where the computer readable storage medium stores a computer program, and the computer program is executed by a processor: as shown in FIG. 1 or FIG. 2 The steps in the microwave inverter input isolation test method are provided in the illustrated embodiment. For example, the computer program is executed by the processor and the following steps are implemented:

[0085] generating, by the signal generator, a radio frequency signal in a working frequency range of the device under test, and transmitting the radio frequency signal to the bridge;

[0086] the radio frequency signal is processed by the bridge and output to the network analyzer and the first polarization port of the device to be tested;

[0087] the device under test transmits a radio frequency signal leaking from the first polarization port to the second polarization port to the network analyzer through the second polarization port;

[0088] the network analyzer outputs a radio frequency signal and the bridge according to the second polarization port of the device to be tested The output RF signal calculates the input isolation between the first polarized port and the second polarized port

[0089] The computer readable storage medium may be an internal storage unit of the terminal described in any of the foregoing embodiments, such as a hard disk or a memory of the terminal. The computer readable storage medium may also be an external storage device of the terminal, such as a plug-in hard disk equipped on the terminal, a smart memory card (SMC), and a Secure Digital (SD) card. , Flash Card, etc. Further, the computer readable storage medium may also include both an internal storage unit of the terminal and an external storage device. The computer readable storage medium is for storing the computer program and other programs and data required by the terminal. The computer readable storage medium can also be used to temporarily store data that has been output or is about to be output.

[0090] Those skilled in the art will appreciate that the elements and algorithm steps of the various examples described in connection with the embodiments disclosed herein can be implemented in electronic hardware, computer software, or a combination of both, for clarity. Interchangeability of hardware and software In the above description, the composition and steps of the examples have been generally described in terms of functions. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. A person skilled in the art can use different methods to implement the described functions for each particular application, but such implementation should not be considered to be beyond the scope of the present invention.

For a specific operation of the terminal and the unit, reference may be made to the corresponding process in the foregoing method embodiments, and details are not described herein again.

[0092] In the several embodiments provided by the present application, it should be understood that the disclosed terminal and method may be implemented in other manners. For example, the device embodiments described above are merely illustrative. For example, the division of the unit is only a logical function division, and the actual implementation may have another division manner, for example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored, or not executed. In addition, the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, or an electrical, mechanical or other form of connection.

[0093] The unit described as a separate component may or may not be physically distributed. The component displayed as a unit may or may not be a physical unit, that is, may be located in one place, or may be located in one place. Distributed to multiple network elements. Some or all of the units may be selected according to actual needs to achieve the objectives of the embodiments of the present invention.

In addition, each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit. The above integrated unit can be implemented either in the form of hardware or in the form of a software functional unit.

[0095] The integrated unit, if implemented in the form of a software functional unit and sold or used as a standalone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention contributes in essence or to the prior art, or all or part of the technical solution may be embodied in the form of a software product stored in a storage medium. A number of instructions are included to cause a computer device (which may be a personal computer, server, or network device, etc.) to perform all or part of the steps of the methods described in various embodiments of the present invention. The foregoing storage medium includes: a USB flash drive, a removable hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk, and the like. .

The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the present invention. Within the scope of protection of the invention.

Claims

Claim

[Claim 1] A microwave inverter input isolation test method, comprising:

Generating, by the signal generator, a radio frequency signal in a range of a working frequency range of the device under test, and transmitting the radio frequency signal to the bridge;

The radio frequency signal is processed by the bridge and output to the network analyzer and the first polarization port of the device to be tested;

Transmitting, by the device under test, a radio frequency signal leaking from the first polarized port into the second polarized port to the network analyzer through a second polarization port; the network analyzer is configured according to the test The RF isolation signal output by the second polarization port of the device and the RF signal output by the bridge calculate an input isolation between the first polarization port and the second polarization port.

The method of claim 1, wherein the network analyzer outputs a radio frequency signal and the bridge according to a second polarization port of the device under test. The output RF signal calculates that the input isolation between the first polarization port and the second polarization port specifically includes:

Obtaining a first power of the radio frequency signal output by the second polarized port of the device to be tested and a second power of the radio frequency signal output by the bridge, and calculating a ratio of the first power to the second power, where The ratio is the input isolation between the first polarized port and the second polarized port.

The method of claim 1, wherein the device under test leaks from the first polarization port to the second pole through the second polarization port. Before the RF signal in the port is transmitted to the network analyzer, it also includes:

Performing high frequency detection on the radio frequency signal leaking from the first polarization port to the second polarization port, and determining whether the frequency of the radio frequency signal is within a preset frequency range;

If within a predetermined frequency range, the radio frequency signal is transmitted to the network analyzer for processing.

The method of claim 3, wherein the predetermined frequency range is 10 MHz to 18 GHz.

The method of claim 1 , wherein the network analyzer is configured to generate a radio frequency signal according to the bridge and a second polarization port of the device to be tested. After the output RF signal calculates the input isolation between the first polarized port and the second polarized port, the method further includes:

Determine whether the input isolation is in compliance with the preset isolation criteria; if the preset isolation criteria are not met, the tester is prompted.

[Claim 6] A microwave inverter input isolation test system, comprising: a signal generator, a bridge, a device to be tested, and a network analyzer, wherein the device to be tested includes a first polarization port and a second pole The signal generator is connected to the input end of the bridge, and the output end of the bridge is connected to the first input end of the network analyzer and the first polarization port of the object to be tested, The second polarization port of the object to be tested is connected to the second input port of the network analyzer, where: the signal generator is configured to generate a radio frequency signal in a working frequency range of the device under test, and the The radio frequency signal is transmitted to the bridge;

The bridge is configured to output the radio frequency signal to the network analyzer and the first polarization port of the device to be tested after processing the radio frequency signal; The polarized port transmits a radio frequency signal leaking from the first polarized port to the second polarized port to the network analyzer;

The network analyzer is configured to calculate, according to the radio frequency signal output by the second polarized port of the device under test and the radio frequency signal output by the bridge, the first polarized port and the second polarized port Input isolation between.

[Claim 7] The microwave inverter input isolation test system according to claim 6, wherein the network analyzer is specifically configured to:

[Claim 8] The microwave inverter input isolation test system according to claim 6, wherein A high frequency detector coupled between the second polarization port and the network analyzer is included, wherein:

The high frequency detector is configured to perform high frequency detection on the radio frequency signal leaking from the first polarization port to the second polarization port, and determine whether the frequency of the radio frequency signal is within a preset frequency range; If within a predetermined frequency range, the radio frequency signal is transmitted to the network analyzer for processing.

The microwave inverter input isolation test system according to claim 8, wherein the preset frequency range is 10 MHz to 18 GHz.

The microwave inverter input isolation test system according to claim 6, wherein the network analyzer is further configured to:

Determining whether the input isolation is in compliance with a preset isolation criterion;

If the default isolation criteria are not met, the tester is prompted.

A microwave inverter input isolation test system, comprising: a processor, an input device, an output device and a memory, wherein the processor, the input device, the output device and the memory are connected to each other, wherein the memory is used for storing an application Program code, the processor being configured to invoke the program code to perform the method of any of claims 1-5.

A computer readable storage medium, characterized in that the computer storage medium stores a computer program, the computer program comprising program instructions, the program instructions being executed by a processor, causing the processor to execute as claimed in claim 1. The method of any of item 5.