Test auxiliary device and system

Abstract

The utility model provides a test auxiliary device and system, and relates to the technical field of testing. The test auxiliary device comprises a first multiplexer, a second multiplexer, a third multiplexer, a fourth multiplexer and a radio frequency signal processing module, the first radio frequency input port is connected with the first multiplexer, the first multiplexer is connected with the second multiplexer, and the second multiplexer is connected with the first radio frequency output port; the second radio frequency input port is connected with the third multiplexer, the third multiplexer is connected with the fourth multiplexer, and the fourth multiplexer is connected with the second radio frequency output port; the first multiplexer and the third multiplexer are respectively connected with the radio frequency signal processing module, and the radio frequency signal processing module is connected with the second multiplexer and the fourth multiplexer; the third radio frequency input port and the fourth radio frequency input port are respectively connected with the radio frequency signal processing module, and the radio frequency signal processing module is respectively connected with the second multiplexer and the fourth multiplexer. Therefore, the test efficiency is improved, and the cost is saved.

Description

Technical Field

[0001] The utility model relates to the technical field of testing, and in particular to a testing auxiliary device and system. Background Art

[0002] As 5G technology is applied in more and more fields, more and more 5G communication modules and terminals are being developed. Compared with the development of 4G modules or terminal applications, the number of combinations such as SA_CA (Standalone_Carrier Aggregation) / ENDC (Enhanced-Data for GSM Evolution New Radio Dual Connectivity) has also increased exponentially, especially the Throughput test. In some test scenarios, some combination tests require switching between multiple ports, and using power splitters and combiners to build a test environment is more complicated, port switching is more difficult, and the connection relationship of the hardware port needs to be manually changed, resulting in low test efficiency, easy errors, and high labor consumption.

[0003] Therefore, there is an urgent need for an efficient and low-cost testing auxiliary device. Utility Model Content

[0004] The purpose of the present invention is to provide a test auxiliary device and system to solve the problems of high test efficiency and low cost in the prior art, in view of the above-mentioned deficiencies in the prior art.

[0005] To achieve the above purpose, the technical solution adopted in the embodiment of the present application is as follows:

[0006] In a first aspect, an embodiment of the present application provides a test auxiliary device, the test auxiliary device comprising: a first RF input port, a second RF input port, a third RF input port, a fourth RF input port, a first RF output port, a second RF output port, a first multiplexer, a second multiplexer, a third multiplexer, a fourth multiplexer, and a RF signal processing module;

[0007] The first RF input port is connected to the input end of the first multiplexer, the first output end of the first multiplexer is connected to the first input end of the second multiplexer, and the output end of the second multiplexer is connected to the first RF output port; the second RF input port is connected to the input end of the third multiplexer, the first output end of the third multiplexer is connected to the first input end of the fourth multiplexer, and the output end of the fourth multiplexer is connected to the second RF output port;

[0008] The second output end of the first multiplexer and the second output end of the third multiplexer are respectively connected to the first low-frequency input end and the second low-frequency input end of the RF signal processing module, and the first low-frequency output end and the second low-frequency output end of the RF signal processing module are respectively connected to the second input end of the second multiplexer and the second input end of the fourth multiplexer;

[0009] The third RF input port and the fourth RF input port are respectively connected to the first medium and high frequency input terminal and the second medium and high frequency input terminal of the RF signal processing module, and the first medium and high frequency output terminal and the second medium and high frequency output terminal of the RF signal processing module are respectively connected to the third input terminal of the second multiplexer and the third input terminal of the fourth multiplexer.

[0010] Optionally, the radio frequency signal processing module includes: a medium and high frequency processing module and a first dual-path processing unit;

[0011] The two input ends of the medium and high frequency processing module are respectively the first medium and high frequency input end and the second medium and high frequency input end, and the two output ends of the medium and high frequency processing module are respectively the first medium and high frequency output end and the second medium and high frequency output end;

[0012] The two input ends of the first dual-path processing unit are the first low-frequency input end and the second low-frequency input end, and the two output ends of the first dual-path processing unit are the first low-frequency output end and the second low-frequency output end.

[0013] Optionally, the medium and high frequency processing module includes: a first duplexer, a second duplexer, a third duplexer, a fourth duplexer, and a second two-way processing unit;

[0014] The input end of the first duplexer and the input end of the second duplexer are respectively the first medium and high frequency input end and the second medium and high frequency input end; the medium frequency output end of the first duplexer and the medium frequency output end of the second duplexer are respectively connected to the two input ends of the second two-way processing unit; the high frequency output end of the first duplexer and the high frequency output end of the second duplexer are respectively connected to the high frequency input end of the third duplexer and the high frequency input end of the fourth duplexer; the two output ends of the second two-way processing unit are respectively connected to the medium frequency input end of the third duplexer and the medium frequency input end of the fourth duplexer; the output end of the third duplexer and the output end of the fourth duplexer are respectively the first medium and high frequency output end and the second medium and high frequency output end.

[0015] Optionally, the first dual-path processing unit is a combiner / splitter having two input interfaces and two output interfaces.

[0016] Optionally, the second dual-path processing unit is a combiner / splitter having two input interfaces and two output interfaces.

[0017] Optionally, the test auxiliary device further includes: a third RF output port and a fourth RF output port, the third output end of the first multiplexer is connected to the third RF output port, and the third output end of the third multiplexer is connected to the fourth RF output port.

[0018] Optionally, the first RF input port, the second RF input port, the third RF input port, the fourth RF input port, the first RF output port, the second RF output port, the third RF output port, and the fourth RF output port are all impedance structures.

[0019] In a second aspect, an embodiment of the present application provides a radio frequency test system, the radio frequency test system comprising: a radio frequency comprehensive tester, at least one test auxiliary device, and a test device; the test auxiliary device is any test auxiliary device described in the first aspect above;

[0020] The first RF terminal, the second RF terminal, the third RF terminal and the fourth RF terminal of the RF comprehensive tester are respectively connected to the first RF input port, the second RF input port, the third RF input port and the fourth RF input port of the test auxiliary device; the first RF output terminal and the second RF output terminal of the test auxiliary device are respectively connected to the first antenna terminal and the second antenna terminal of the test equipment.

[0021] Optionally, if the test auxiliary device further includes: a third RF output port and a fourth RF output port, the third RF output port is connected to the third RF input port, and the fourth RF output port is connected to the fourth RF input port.

[0022] Optionally, the third RF output port is connected to the third RF input port via a RF coaxial line, and the fourth RF output port is connected to the fourth RF input port via a RF coaxial line.

[0023] Compared with the prior art, this application has the following beneficial effects:

[0024] The present application provides a test auxiliary device and system. The test auxiliary device includes: a first RF input port, a second RF input port, a third RF input port, a fourth RF input port, a first RF output port, a second RF output port, a first multiplexer, a second multiplexer, a third multiplexer, a fourth multiplexer, and a RF signal processing module; the first RF input port is connected to the input end of the first multiplexer, the first output end of the first multiplexer is connected to the first input end of the second multiplexer, and the output end of the second multiplexer is connected to the first RF output port; the second RF input port is connected to the input end of the third multiplexer, the first output end of the third multiplexer is connected to the first input end of the fourth multiplexer, and the output end of the fourth multiplexer is connected to the first RF output port. Connect the second RF output port; the second output end of the first multiplexer and the second output end of the third multiplexer are respectively connected to the first low-frequency input end and the second low-frequency input end of the RF signal processing module, and the first low-frequency output end and the second low-frequency output end of the RF signal processing module are respectively connected to the second input end of the second multiplexer and the second input end of the fourth multiplexer; the third RF input port and the fourth RF input port are respectively connected to the first medium-high frequency input end and the second medium-high frequency input end of the RF signal processing module, and the first medium-high frequency output end and the second medium-high frequency output end of the RF signal processing module are respectively connected to the third input end of the second multiplexer and the third input end of the fourth multiplexer. Thus, without changing the hardware port connection, the signal switching is realized through the internal structure, and the corresponding combination test environment is built, which shortens the R&D verification time, improves the test efficiency, and thus improves the development progress and saves costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0026] Figure 1 A schematic diagram of the structure of a test auxiliary device provided in an embodiment of the present application;

[0027] Figure 2 A schematic diagram of the structure of another test auxiliary device provided in an embodiment of the present application;

[0028] Figure 3 A schematic diagram of the structure of another test auxiliary device provided in an embodiment of the present application;

[0029] Figure 4 A structural schematic diagram of another test auxiliary device provided in an embodiment of the present application;

[0030] Figure 5A schematic diagram of the structure of another test auxiliary device provided in an embodiment of the present application;

[0031] Figure 6 A schematic diagram of the structure of a radio frequency test system provided in an embodiment of the present application;

[0032] Figure 7 A schematic diagram of the structure of another radio frequency test system provided in an embodiment of the present application;

[0033] Figure 8 A schematic diagram of the structure of another radio frequency testing system provided in an embodiment of the present application.

[0034] Icons: 11-first RF input port, 12-second RF input port, 13-third RF input port, 14-fourth RF input port, 15-first RF output port, 16-second RF output port, 21-first multiplexer, 22-second multiplexer, 23-third multiplexer, 24-fourth multiplexer, 3-RF signal processing module, 31-medium and high frequency processing module, 32-first dual-channel processing unit, 311-first duplexer, 312-second duplexer , 313-third duplexer, 314-fourth duplexer, 315-second dual-path processing unit, 17-third RF output port, 18-fourth RF output port, 01-RF comprehensive tester, 02-test auxiliary device, 03-test equipment, 011-first RF terminal, 012-second RF terminal, 013-third RF terminal, 014-fourth RF terminal, 031-first antenna terminal, 032-second antenna terminal, 033-third antenna terminal, 034-fourth antenna terminal. DETAILED DESCRIPTION

[0035] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. The components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various different configurations.

[0036] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application for protection, but merely represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present application.

[0037] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0038] In addition, the terms “first”, “second”, etc., if used, are merely used to distinguish between the descriptions and should not be understood as indicating or implying relative importance.

[0039] It should be noted that, in the absence of conflict, the features in the embodiments of the present invention may be combined with each other.

[0040] The following is an explanation of a test auxiliary device provided in an embodiment of the present application through a specific example.

[0041] Figure 1 This is a schematic diagram of the structure of a test auxiliary device provided in an embodiment of the present application. Figure 1 As shown, the test auxiliary device includes: a first RF input port 11, a second RF input port 12, a third RF input port 13, a fourth RF input port 14, a first RF output port 15, a second RF output port 16, a first multiplexer 21, a second multiplexer 22, a third multiplexer 23, a fourth multiplexer 24, and a RF signal processing module 3.

[0042] The first RF input port 11 is connected to the input end of the first multiplexer 21, the first output end of the first multiplexer 21 is connected to the first input end of the second multiplexer 22, and the output end of the second multiplexer 22 is connected to the first RF output port 15; the second RF input port 12 is connected to the input end of the third multiplexer 23, the first output end of the third multiplexer 23 is connected to the first input end of the fourth multiplexer 24, and the output end of the fourth multiplexer 24 is connected to the second RF output port 16.

[0043] The second output end of the first multiplexer 21 and the second output end of the third multiplexer 23 are respectively connected to the first low-frequency input end and the second low-frequency input end of the RF signal processing module 3, and the first low-frequency output end and the second low-frequency output end of the RF signal processing module 3 are respectively connected to the second input end of the second multiplexer 22 and the second input end of the fourth multiplexer 24.

[0044] The third RF input port 13 and the fourth RF input port 14 are respectively connected to the first medium and high frequency input terminal and the second medium and high frequency input terminal of the RF signal processing module 3, and the first medium and high frequency output terminal and the second medium and high frequency output terminal of the RF signal processing module 3 are respectively connected to the third input terminal of the second multiplexer 22 and the third input terminal of the fourth multiplexer 24.

[0045] The first RF input port 11, the second RF input port 12, the third RF input port 13, and the fourth RF input port 14 are connected to multiple ports of the RF comprehensive tester for receiving RF signals. The first RF output port 15 and the second RF output port 16 are used to send RF signals.

[0046] Among them, the first RF input port 11 and the second RF input port 12 can receive RF signals of multiple frequency bands, and the third RF input port 13 and the fourth RF input port 14 are used to receive RF signals of medium and high frequency bands (MHB). The structure of the test auxiliary device in this embodiment corresponds to the RF comprehensive tester being provided with a medium and high frequency RF output port independent of the RF output port, that is, the first RF input port 11 and the second RF input port 12 are respectively connected to the RF output ports provided by the RF comprehensive tester, and the third RF input port 13 and the fourth RF input port 14 are respectively connected to the medium and high frequency RF output ports provided by the RF comprehensive tester.

[0047] After the first multiplexer 21 receives the first RF signal transmitted by the first RF input port 11, the first RF signal of the ultra-high frequency band (UHB) is transmitted from the first output end to the first input end of the second multiplexer 22, and the first RF signal of the low frequency band (LB) is transmitted from the second output end to the first low frequency input end of the RF signal processing module 3.

[0048] After the third multiplexer 23 receives the second RF signal transmitted by the second RF input port 12, it transmits the second RF signal of the ultra-high frequency band (UHB) from the first output end to the first input end of the fourth multiplexer 24, and transmits the second RF signal of the low frequency band (LB) from the second output end to the second low frequency input end of the RF signal processing module 3.

[0049] The first RF signal in the medium and high frequency band is transmitted to the first medium and high frequency input terminal of the RF signal processing module 3 through the third RF input port 13, and the second RF signal in the medium and high frequency band is transmitted to the second medium and high frequency input terminal of the RF signal processing module 3 through the fourth RF input port 14.

[0050] The RF signal processing module 3 processes the first RF signal in the low frequency band and the second RF signal in the low frequency band, and outputs the RF signal in the low frequency band to the second input end of the second multiplexer 22 and the second input end of the fourth multiplexer 24, respectively, to achieve signal switching. For example, the first RF signal in the low frequency band can be input to the second input end of the second multiplexer 22, and the second RF signal in the low frequency band can be input to the second input end of the fourth multiplexer 24, or the second RF signal in the low frequency band can be input to the second input end of the second multiplexer 22, and the first RF signal in the low frequency band can be input to the second input end of the fourth multiplexer 24.

[0051] The RF signal processing module 3 processes the first RF signal in the medium and high frequency bands and the second RF signal in the medium and high frequency bands, and outputs the RF signals in the medium and high frequency bands to the third input terminal of the second multiplexer 22 and the third input terminal of the fourth multiplexer 24 respectively, thereby realizing signal switching.

[0052] The second multiplexer 22 combines the received RF signals of the low frequency band, the medium and high frequency band, and the ultra-high frequency band, and transmits them to the first RF output port 15, and the first RF output port 15 outputs the combined RF signal. The fourth multiplexer 24 combines the received RF signals of the low frequency band, the medium and high frequency band, and the ultra-high frequency band, and transmits them to the second RF output port 16, and the second RF output port 16 outputs the combined RF signal.

[0053] Thus, two RF inputs and two RF outputs can be realized through the 2×2 test auxiliary device. Without changing the hardware port connection, the signal switching is realized through the internal structure, and the corresponding combination test environment is built, which shortens the R&D verification time, improves the test efficiency, and thus speeds up the development progress and saves costs.

[0054] In summary, in this embodiment, the test auxiliary device includes: a first RF input port, a second RF input port, a third RF input port, a fourth RF input port, a first RF output port, a second RF output port, a first multiplexer, a second multiplexer, a third multiplexer, a fourth multiplexer, and a RF signal processing module; the first RF input port is connected to the input end of the first multiplexer, the first output end of the first multiplexer is connected to the first input end of the second multiplexer, and the output end of the second multiplexer is connected to the first RF output port; the second RF input port is connected to the input end of the third multiplexer, the first output end of the third multiplexer is connected to the first input end of the fourth multiplexer, and the fourth multiplexer is connected to the first multiplexer. The output end is connected to the second RF output port; the second output end of the first multiplexer and the second output end of the third multiplexer are respectively connected to the first low-frequency input end and the second low-frequency input end of the RF signal processing module, and the first low-frequency output end and the second low-frequency output end of the RF signal processing module are respectively connected to the second input end of the second multiplexer and the second input end of the fourth multiplexer; the third RF input port and the fourth RF input port are respectively connected to the first medium-high frequency input end and the second medium-high frequency input end of the RF signal processing module, and the first medium-high frequency output end and the second medium-high frequency output end of the RF signal processing module are respectively connected to the third input end of the second multiplexer and the third input end of the fourth multiplexer. Thus, without changing the hardware port connection, the signal switching is realized through the internal structure, and the corresponding combination test environment is built, which shortens the R&D verification time, improves the test efficiency, thereby improving the development progress and saving costs.

[0055] In the above Figure 1 Based on the corresponding embodiments, the present application also provides another test auxiliary device. Figure 2 This is a schematic diagram of the structure of another test auxiliary device provided in an embodiment of the present application. Figure 2 As shown, the radio frequency signal processing module includes: a medium and high frequency processing module 31 and a first dual-path processing unit 32 .

[0056] The two input terminals of the medium and high frequency processing module 31 are respectively a first medium and high frequency input terminal and a second medium and high frequency input terminal, and the two output terminals of the medium and high frequency processing module 31 are respectively a first medium and high frequency output terminal and a second medium and high frequency output terminal.

[0057] The two input terminals of the first dual-path processing unit 32 are respectively a first low-frequency input terminal and a second low-frequency input terminal, and the two output terminals of the first dual-path processing unit 32 are respectively a first low-frequency output terminal and a second low-frequency output terminal.

[0058] The mid-high frequency processing module 31 processes the first RF signal in the mid-high frequency band and the second RF signal in the mid-high frequency band, and outputs the RF signals in the mid-high frequency band to the third input terminal of the second multiplexer 22 and the third input terminal of the fourth multiplexer 24 respectively, thereby realizing signal switching.

[0059] The first dual-path processing unit 32 processes the first RF signal in the low frequency band and the second RF signal in the low frequency band, and outputs the RF signal in the low frequency band to the second input end of the second multiplexer 22 and the second input end of the fourth multiplexer 24 respectively, thereby realizing signal switching.

[0060] In summary, in this embodiment, the RF signal processing module includes: a medium and high frequency processing module and a first dual-channel processing unit; the two input ends of the medium and high frequency processing module are respectively the first medium and high frequency input end and the second medium and high frequency input end, and the two output ends of the medium and high frequency processing module are respectively the first medium and high frequency output end and the second medium and high frequency output end; the two input ends of the first dual-channel processing unit are respectively the first low frequency input end and the second low frequency input end, and the two output ends of the first dual-channel processing unit are respectively the first low frequency output end and the second low frequency output end. Thus, without changing the hardware port connection, the signal switching is realized through the internal structure.

[0061] In the above Figure 2 Based on the corresponding embodiments, the present application also provides another test auxiliary device. Figure 3 This is a schematic diagram of the structure of another test auxiliary device provided in an embodiment of the present application. Figure 3 As shown, the medium and high frequency processing module 31 includes: a first duplexer 311 , a second duplexer 312 , a third duplexer 313 , a fourth duplexer 314 , and a second two-way processing unit 315 .

[0062] The input end of the first duplexer 311 and the input end of the second duplexer 312 are the first medium and high frequency input end and the second medium and high frequency input end respectively. The medium frequency output end of the first duplexer 311 and the medium frequency output end of the second duplexer 312 are connected to the two input ends of the second two-way processing unit 315 respectively. The high frequency output end of the first duplexer 311 and the high frequency output end of the second duplexer 312 are connected to the high frequency input end of the third duplexer 313 and the high frequency input end of the fourth duplexer 314 respectively. The two output ends of the second two-way processing unit 315 are connected to the medium frequency input end of the third duplexer 313 and the medium frequency input end of the fourth duplexer 314 respectively. The output end of the third duplexer 313 and the output end of the fourth duplexer 314 are the first medium and high frequency output end and the second medium and high frequency output end respectively.

[0063] After receiving the first RF signal in the medium and high frequency bands, the first duplexer 311 transmits the first RF signal in the medium frequency band to the first input end of the second two-way processing unit 315 , and transmits the first RF signal in the high frequency band to the third duplexer 313 .

[0064] After receiving the second RF signal in the medium and high frequency bands, the second duplexer 312 transmits the second RF signal in the medium frequency band to the second input end of the second two-way processing unit 315 , and transmits the second RF signal in the high frequency band to the fourth duplexer 314 .

[0065] The second two-way processing unit 315 processes the first RF signal of the intermediate frequency band and the second RF signal of the intermediate frequency band, and outputs the RF signal of the intermediate frequency band to the intermediate frequency input end of the third duplexer 313 and the intermediate frequency input end of the fourth duplexer 314, respectively, to realize the switching of the intermediate frequency band signal. For example, the first RF signal of the intermediate frequency band can be input to the intermediate frequency input end of the third duplexer 313, and the second RF signal of the intermediate frequency band can be input to the intermediate frequency input end of the fourth duplexer 314, or the second RF signal of the intermediate frequency band can be input to the intermediate frequency input end of the third duplexer 313, and the first RF signal of the intermediate frequency band can be input to the intermediate frequency input end of the fourth duplexer 314.

[0066] In summary, in this embodiment, the medium and high frequency processing module includes: a first duplexer, a second duplexer, a third duplexer, a fourth duplexer, and a second two-way processing unit; the input end of the first duplexer and the input end of the second duplexer are respectively the first medium and high frequency input end and the second medium and high frequency input end, the intermediate frequency output end of the first duplexer and the intermediate frequency output end of the second duplexer are respectively connected to the two input ends of the second two-way processing unit, the high frequency output end of the first duplexer and the high frequency output end of the second duplexer are respectively connected to the high frequency input end of the third duplexer and the high frequency input end of the fourth duplexer, the two output ends of the second two-way processing unit are respectively connected to the intermediate frequency input end of the third duplexer and the intermediate frequency input end of the fourth duplexer, the output end of the third duplexer and the output end of the fourth duplexer are respectively the first medium and high frequency output end and the second medium and high frequency output end. Thus, without changing the hardware port connection, the signal switching is realized through the internal structure.

[0067] In the above Figure 3 On the basis of the corresponding embodiment, in another embodiment of the present application, the first dual-path processing unit 32 is: a combiner and splitter having two input interfaces and two output interfaces.

[0068] The combiner and power splitter include: combiner and power splitter. The combiner is used to receive two input RF signals and combine the two input RF signals. The power splitter is used to split the combined RF signal into two paths and output them.

[0069] In the above Figure 3 On the basis of the corresponding embodiment, in another embodiment of the present application, the second dual-path processing unit 315 is: a combiner and splitter having two input interfaces and two output interfaces.

[0070] The second dual-path processing unit 315 has a similar structure to the first dual-path processing unit 32, and will not be described in detail herein.

[0071] In the above Figure 1 Based on the corresponding embodiments, the present application also provides a test auxiliary device. Figure 4 A schematic diagram of the structure of another test auxiliary device provided in an embodiment of the present application.

[0072] like Figure 4 As shown, the test auxiliary device further includes: a third RF output port 17 and a fourth RF output port 18. The third output end of the first multiplexer 21 is connected to the third RF output port 17, and the third output end of the third multiplexer 23 is connected to the fourth RF output port 18.

[0073] The structure of the test auxiliary device in this embodiment corresponds to the RF comprehensive tester that does not have a medium-high frequency RF output port independent of the RF output port, that is, the first RF input port 11 and the second RF input port 12 are respectively connected to the RF output ports set in the RF comprehensive tester, and the third RF input port 13 and the fourth RF input port 14 are not connected to the RF comprehensive tester.

[0074] When the test auxiliary device in this embodiment is used for work, if the RF comprehensive tester is provided with a medium-high frequency RF output port independent of the RF output port, the working method is similar to the above embodiment and will not be repeated here, and the third RF output port 17 and the fourth RF output port 18 will not work.

[0075] If the RF comprehensive tester is not provided with a medium-high frequency RF output port independent of the RF output port, that is, the first RF input port 11 and the second RF input port 12 are respectively connected to the RF output ports provided in the RF comprehensive tester, and the third RF input port 13 and the fourth RF input port 14 are not connected to the RF comprehensive tester. It is also necessary to connect the third RF output port 17 to the third RF input port 13, and the fourth RF output port 18 to the fourth RF input port 14.

[0076] The first multiplexer 21 transmits the first RF signal in the medium and high frequency band to the third RF output port 17 , and the first RF signal in the medium and high frequency band is transmitted to the third RF input port 13 through the third RF output port 17 .

[0077] The third multiplexer 23 transmits the second RF signal in the medium and high frequency band to the fourth RF output port 18 , and the second RF signal in the medium and high frequency band is transmitted to the fourth RF input port 14 through the fourth RF output port 18 .

[0078] Therefore, it is possible to independently receive radio frequency signals in the medium and high frequency bands, and also to receive radio frequency signals in the medium and high frequency bands from a multiplexer, thereby expanding the applicability of the test auxiliary device.

[0079] In summary, in this embodiment, the test auxiliary device further includes: a third RF output port and a fourth RF output port, the third output end of the first multiplexer is connected to the third RF output port, and the third output end of the third multiplexer is connected to the fourth RF output port. Thus, the applicability of the test auxiliary device is expanded.

[0080] In the above Figure 4 On the basis of the corresponding embodiments, in another embodiment of the present application, the first RF input port 11, the second RF input port 12, the third RF input port 13, the fourth RF input port 14, the first RF output port 15, the second RF output port 16, the third RF output port 17, and the fourth RF output port 18 are all impedance structures.

[0081] Illustratively, the impedance structure is a 50 ohm impedance.

[0082] In the above Figure 1-Figure 4 On the basis of the corresponding embodiment, the embodiment of the present application also provides another test auxiliary device. Figure 5 This is a schematic diagram of the structure of another test auxiliary device provided in an embodiment of the present application. Figure 5 As shown, the device includes the technical features of all the above embodiments and can achieve the beneficial effects of all the above embodiments.

[0083] Based on the above embodiments, the embodiments of the present application also provide a radio frequency testing system. Figure 6 A schematic diagram of the structure of a radio frequency test system provided in an embodiment of the present application. Figure 6 As shown, the radio frequency test system includes: a radio frequency comprehensive tester 01, at least one test auxiliary device 02, and a test equipment 03; the test auxiliary device 02 is any of the test auxiliary devices 02 in the above embodiments.

[0084] The first RF terminal 011, the second RF terminal 012, the third RF terminal 013, and the fourth RF terminal 014 of the RF comprehensive tester 01 are respectively connected to the first RF input port 11, the second RF input port 12, the third RF input port 13, and the fourth RF input port 14 of the test auxiliary device 02; the first RF output port 15 and the second RF output port 16 of the test auxiliary device 02 are respectively connected to the first antenna terminal 031 and the second antenna terminal 032 of the test equipment 03.

[0085] The first RF terminal 011 and the second RF terminal 012 of the RF comprehensive tester 01 are used to output UHB RF signals and LB RF signals, and the third RF terminal 013 and the fourth RF terminal 014 of the RF comprehensive tester 01 are used to output MHB RF signals.

[0086] In summary, in this embodiment, the RF test system includes: an RF comprehensive tester, at least one test auxiliary device, and a test device; the test auxiliary device is any of the test auxiliary devices in the above embodiments; the first RF end, the second RF end, the third RF end, and the fourth RF end of the RF comprehensive tester are respectively connected to the first RF input port, the second RF input port, the third RF input port, and the fourth RF input port of the test auxiliary device; the first RF output end and the second RF output end of the test auxiliary device are respectively connected to the first antenna end and the second antenna end of the test device. Thus, without changing the hardware port connection, the signal switching is realized through the internal structure, and the corresponding combined test environment is built, which shortens the R&D verification time, improves the test efficiency, and thus improves the development progress and saves costs.

[0087] In the above Figure 6Based on the corresponding embodiment, the embodiment of the present application also provides another radio frequency testing system. Figure 7 This is a schematic diagram of the structure of another radio frequency test system provided in an embodiment of the present application. Figure 7 As shown, if the test auxiliary device 02 further includes: a third RF output port 17 and a fourth RF output port 18 , the third RF output port 17 is connected to the third RF input port 13 , and the fourth RF output port 18 is connected to the fourth RF input port 14 .

[0088] The first RF terminal 011 , the second RF terminal 012 , the third RF terminal 013 , and the fourth RF terminal 014 of the RF comprehensive tester 01 are all used to output UHB RF signals, MHB RF signals, and LB RF signals.

[0089] In summary, in this embodiment, if the test auxiliary device further includes: a third RF output port and a fourth RF output port, the third RF output port is connected to the third RF input port, and the fourth RF output port is connected to the fourth RF input port, thereby improving the test applicability.

[0090] exist Figure 7 On the basis of the corresponding embodiment, in another embodiment of the present application, the third RF output port 17 is connected to the third RF input port 13 through a RF coaxial line, and the fourth RF output port 18 is connected to the fourth RF input port 14 through a RF coaxial line.

[0091] Based on the above embodiments, the embodiments of the present application further provide another radio frequency testing system. Figure 8 A schematic diagram of the structure of another radio frequency testing system provided in an embodiment of the present application.

[0092] like Figure 8 As shown, a 4×4 test auxiliary device is built by two 2×2 test auxiliary devices to achieve four RF inputs and four RF outputs. The connection structure of the 4×4 test auxiliary device is similar to that of the 2×2 test auxiliary device and will not be repeated here. Furthermore, the test auxiliary device provided in the embodiment of the present application can be expanded to an n×n test auxiliary device, where n is a positive integer multiple of 2.

[0093] Furthermore, the first RF terminal 011, the second RF terminal 012, the third RF terminal 013, and the fourth RF terminal 014 of the RF comprehensive tester 01, and the first antenna terminal 031, the second antenna terminal 032, the third antenna terminal 033, and the fourth antenna terminal 034 of the test equipment 03 are respectively connected to the corresponding terminals of the 4×4 test auxiliary device.

[0094] The above description is only the preferred embodiment of the present application, and is not intended to limit the present application. For those skilled in the art, the present application may have various changes and variations. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application. It should be noted that similar numbers and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings. The above description is only the preferred embodiment of the present application, and is not intended to limit the present application. For those skilled in the art, the present application may have various changes and variations. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A test auxiliary device, characterized in that: The test auxiliary device comprises: a first RF input port, a second RF input port, a third RF input port, a fourth RF input port, a first RF output port, a second RF output port, a first multiplexer, a second multiplexer, a third multiplexer, a fourth multiplexer, and a RF signal processing module; The first RF input port is connected to the input end of the first multiplexer, the first output end of the first multiplexer is connected to the first input end of the second multiplexer, and the output end of the second multiplexer is connected to the first RF output port; the second RF input port is connected to the input end of the third multiplexer, the first output end of the third multiplexer is connected to the first input end of the fourth multiplexer, and the output end of the fourth multiplexer is connected to the second RF output port; The second output end of the first multiplexer and the second output end of the third multiplexer are respectively connected to the first low-frequency input end and the second low-frequency input end of the RF signal processing module, and the first low-frequency output end and the second low-frequency output end of the RF signal processing module are respectively connected to the second input end of the second multiplexer and the second input end of the fourth multiplexer; The third RF input port and the fourth RF input port are respectively connected to the first medium and high frequency input terminal and the second medium and high frequency input terminal of the RF signal processing module, and the first medium and high frequency output terminal and the second medium and high frequency output terminal of the RF signal processing module are respectively connected to the third input terminal of the second multiplexer and the third input terminal of the fourth multiplexer.

2. The test auxiliary device according to claim 1, characterized in that: The radio frequency signal processing module includes: a medium and high frequency processing module and a first dual-path processing unit; The two input ends of the medium and high frequency processing module are respectively the first medium and high frequency input end and the second medium and high frequency input end, and the two output ends of the medium and high frequency processing module are respectively the first medium and high frequency output end and the second medium and high frequency output end; The two input ends of the first dual-path processing unit are the first low-frequency input end and the second low-frequency input end, and the two output ends of the first dual-path processing unit are the first low-frequency output end and the second low-frequency output end.

3. The test auxiliary device according to claim 2, characterized in that: The medium and high frequency processing module includes: a first duplexer, a second duplexer, a third duplexer, a fourth duplexer, and a second two-way processing unit; The input end of the first duplexer and the input end of the second duplexer are respectively the first medium and high frequency input end and the second medium and high frequency input end; the medium frequency output end of the first duplexer and the medium frequency output end of the second duplexer are respectively connected to the two input ends of the second two-way processing unit; the high frequency output end of the first duplexer and the high frequency output end of the second duplexer are respectively connected to the high frequency input end of the third duplexer and the high frequency input end of the fourth duplexer; the two output ends of the second two-way processing unit are respectively connected to the medium frequency input end of the third duplexer and the medium frequency input end of the fourth duplexer; the output end of the third duplexer and the output end of the fourth duplexer are respectively the first medium and high frequency output end and the second medium and high frequency output end.

4. The test auxiliary device according to claim 3, characterized in that: The first dual-path processing unit is a combiner / divider having two input interfaces and two output interfaces.

5. The test auxiliary device according to claim 3, characterized in that: The second dual-path processing unit is a combiner / divider having two input interfaces and two output interfaces.

6. The test assisting device according to claim 1, characterized in that: The test auxiliary device also includes: a third RF output port and a fourth RF output port, the third output end of the first multiplexer is connected to the third RF output port, and the third output end of the third multiplexer is connected to the fourth RF output port.

7. The test assisting device according to claim 6, characterized in that: The first RF input port, the second RF input port, the third RF input port, the fourth RF input port, the first RF output port, the second RF output port, the third RF output port, and the fourth RF output port are all impedance structures.

8. A radio frequency testing system, characterized in that: The radio frequency test system comprises: a radio frequency comprehensive tester, at least one test auxiliary device, and a test device; the test auxiliary device is the test auxiliary device described in any one of claims 1 to 7 above; The first RF terminal, the second RF terminal, the third RF terminal and the fourth RF terminal of the RF comprehensive tester are respectively connected to the first RF input port, the second RF input port, the third RF input port and the fourth RF input port of the test auxiliary device; the first RF output terminal and the second RF output terminal of the test auxiliary device are respectively connected to the first antenna terminal and the second antenna terminal of the test equipment.

9. The radio frequency testing system according to claim 8, characterized in that: If the test auxiliary device further includes: a third RF output port and a fourth RF output port, the third RF output port is connected to the third RF input port, and the fourth RF output port is connected to the fourth RF input port.

10. The radio frequency testing system according to claim 9, characterized in that: The third RF output port is connected to the third RF input port via a RF coaxial line, and the fourth RF output port is connected to the fourth RF input port via a RF coaxial line.

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