Radio frequency device with test function

Abstract

The embodiment of the utility model discloses a radio frequency device with a test function, and the device comprises a signal source, a spectrum analyzer, and a to-be-tested object. The output end of the signal source is connected with the input end of a to-be-tested object; the input end of the spectrum analyzer is connected with the output end of the to-be-tested object; the to-be-tested object comprises at least one of a system module, an output branch and any device in the system module and the output branch; the system module comprises a first system module, a second system module and a combiner connected with the first system module and the second system module; the output branch comprises at least one of a first branch, a second branch and a third branch. According to the embodiment of the invention, the method can achieve the testing of the radio frequency performance indexes of the dual systems, can be used for simulating the dual systems, and facilitates the design and maintenance of the dual systems.

Description

Technical Field

[0001] The present disclosure relates to the field of communication technology, and in particular to a radio frequency device with a testing function. Background Art

[0002] RF devices are an important part of mobile communication systems and the basis of indoor distribution systems. The performance of RF devices and RF systems composed of RF devices plays an important role in the quality of mobile communication systems. Therefore, testing RF devices and their systems is particularly important. Designing and analyzing RF systems through testing of RF systems is a strong guarantee for the construction and maintenance of RF systems. Utility Model Content

[0003] The disclosed embodiment provides a radio frequency device with a testing function, which can implement the testing of the radio frequency performance indicators of a dual system, can be used to simulate a dual system, and is helpful for the design and maintenance of the dual system.

[0004] In one aspect of an embodiment of the present disclosure, a radio frequency device with a test function is provided, including:

[0005] The radio frequency device includes a signal source, a spectrum analyzer and an object to be tested;

[0006] The output end of the signal source is connected to the input end of the object to be tested, and the signal source sends an input signal to the input end of the object to be tested through the output end of the signal source;

[0007] The input end of the spectrum analyzer is connected to the output end of the object to be tested, the spectrum analyzer receives the output signal sent by the output end of the object to be tested through the input end of the spectrum analyzer, tests the output signal, and outputs the spectrum power;

[0008] The object to be tested includes at least one of the following: a system module, an output branch, or any device in the system module or the output branch;

[0009] The system module comprises: a first system module, a second system module and a combiner connecting the first system module and the second system module;

[0010] The output branch includes: at least one of a first branch, a second branch and a third branch;

[0011] The first branch includes: a first directional coupler, an adjustable attenuator, a first load connected in sequence, and an antenna connected to the first directional coupler;

[0012] The second branch includes: a second directional coupler, a second load connected to the second directional coupler, and a third load;

[0013] The third branch includes: two power dividers, an attenuator, a fourth load connected in sequence, and a fifth load connected to the two power dividers.

[0014] In an exemplary embodiment, the object to be tested is specifically the system module;

[0015] The output end of the signal source is connected to the transmitting end of the first system module and the second system module respectively;

[0016] The input end of the spectrum analyzer is connected to the output end of the combiner.

[0017] In an exemplary embodiment, the object to be tested is specifically the output branch;

[0018] When the output branch is specifically the first branch, the output end of the signal source is connected to the input end of the first directional coupler, and the input end of the spectrum analyzer is connected to the output end of the first directional coupler or the output end of the adjustable attenuator;

[0019] When the output branch is specifically the second branch, the output end of the signal source is connected to the input end of the second directional coupler, and the input end of the spectrum analyzer is connected to the output end of the second directional coupler;

[0020] When the output branch is specifically the third branch, the output end of the signal source is connected to the input end of the two-power divider, and the input end of the spectrum analyzer is connected to the output end of the two-power divider or the output end of the attenuator.

[0021] In an exemplary embodiment, the object to be tested is specifically the system module and the output branch, and the input end of the output branch is connected to the output end of the combiner;

[0022] The output end of the signal source is connected to the transmitting end of at least one of the first system module and the second system module;

[0023] The input end of the spectrum analyzer is connected to the output end of the output branch.

[0024] In an exemplary embodiment, the output branch is specifically the first branch, the second branch and the third branch;

[0025] The device further comprises: a three-power divider, the input end of the three-power divider is connected to the output end of the combiner, and the output end of the three-power divider is respectively connected to the input ends of the first branch, the second branch and the third branch;

[0026] The input end of the spectrum analyzer is connected to the output end of the first directional coupler or the output end of the adjustable attenuator, to the output end of the second directional coupler, and to the output end of the two-power divider or the output end of the attenuator.

[0027] In an exemplary embodiment, the output branch is specifically a system module and the first branch;

[0028] The device further includes: a transmitting antenna communicatively connected to the antenna, the output end of the signal source being connected to the transmitting antenna;

[0029] The input end of the spectrum analyzer is connected to the receiving end of the first system module or the receiving end of the second system module.

[0030] In an exemplary embodiment, an input end and an output end of at least one device in the radio frequency device are provided with a subminiature connector.

[0031] The disclosed embodiment provides a radio frequency device with a test function, wherein the system includes a signal source, a spectrum analyzer and an object to be tested, wherein the object to be tested includes a first system module and a second system module, and the first system module and the second system module can be tested to implement the test of the radio frequency performance indicators of the dual systems, and can be used to simulate the dual systems, which is helpful for the design and maintenance of the dual systems; and the object to be tested also includes an output branch, and the output branch can be at least one of different branches, and different branches can simulate different signal distribution branches. The signal source and the spectrum analyzer test the signal quality of uplinks or downlinks of different branches by connecting the input and output ports of different branches. Through the design of different signal distribution branches, the simulation of different signal distribution scenarios can be implemented, which is beneficial for the construction and maintenance of the distribution system; and the device parameters of independent devices in the device can also be tested, which can provide a reference for the design and maintenance of the radio frequency system, which is helpful for the design and maintenance of the radio frequency system.

[0032] In the disclosed embodiment, the ports of any device in the RF device with test function are independent and can be disconnected and connected arbitrarily. The signal source and spectrum analyzer can be connected to any port to test different branches or different devices and different systems. The test parameters of each part can be used in the design and maintenance process of the RF system to provide reliable experimental parameters for the design and maintenance of the RF system. The system includes a variety of RF devices, and tests on different devices are implemented to determine the RF performance of different devices, providing guidance for using them in RF systems.

[0033] The technical solution of the present disclosure is further described in detail through the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] The accompanying drawings, which constitute a part of the specification, illustrate embodiments of the present disclosure and, together with the description, serve to explain the principles of the present disclosure.

[0035] The present disclosure may be more clearly understood from the following detailed description with reference to the accompanying drawings, in which:

[0036] Figure 1 A structural block diagram of a radio frequency device with a test function provided by an exemplary embodiment of the present disclosure;

[0037] Figure 2 A structural block diagram of a radio frequency device with a test function provided by another exemplary embodiment of the present disclosure;

[0038] Figure 3 A schematic diagram of a connection method between devices provided for an exemplary embodiment of the present disclosure;

[0039] The reference numerals are as follows:

[0040] Signal source-1, spectrum analyzer-2, combiner-3, three-power splitter-4, first duplexer-11, power amplifier-12, first filter 13, second duplexer 21, second filter-22, first directional coupler-31, adjustable attenuator-32, first load-33, antenna-34, second directional coupler-41, second load-42, third load-43, second power splitter-51, attenuator-52, fourth load-53 and fifth load-54. DETAILED DESCRIPTION

[0041] Various exemplary embodiments of the present disclosure will now be described in detail with reference to the accompanying drawings. It should be noted that the relative arrangement of components and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present disclosure unless otherwise specifically stated.

[0042] Those skilled in the art can understand that the terms "first" and "second" in the embodiments of the present disclosure are only used to distinguish different steps, devices or modules, etc., and neither represent any specific technical meaning nor indicate the necessary logical order between them.

[0043] It should also be understood that in the embodiments of the present disclosure, “plurality” may refer to two or more than two, and “at least one” may refer to one, two, or more than two.

[0044] It should also be understood that any component, data or structure mentioned in the embodiments of the present disclosure can generally be understood as one or more, unless explicitly limited or otherwise indicated in the context.

[0045] In addition, the term "and / or" in the present disclosure is only a description of the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in the present disclosure generally indicates that the associated objects before and after are in an "or" relationship.

[0046] It should also be understood that the description of the various embodiments in the present disclosure focuses on the differences between the various embodiments, and the same or similar aspects thereof can be referenced to each other, and for the sake of brevity, they will not be described one by one.

[0047] 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.

[0048] The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the present disclosure, its application, or uses.

[0049] It should be noted that like reference numerals and letters refer to similar items in the following figures, and therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.

[0050] An embodiment of the present disclosure provides a radio frequency device with a test function for simulating and testing a radio frequency system.

[0051] Figure 1 It is a structural block diagram of a radio frequency device with a test function provided by an exemplary embodiment of the present disclosure.

[0052] like Figure 1 As shown, the test device includes a signal source 1, a spectrum analyzer 2 and an object to be tested.

[0053] The signal source 1 is a device for outputting electronic signals. Optionally, the signal source 1 may be a base station signal source or a signal generator, wherein the base station signal source may be a macro base station signal source, a micro base station signal source, a repeater signal source, etc., which is not limited in this embodiment.

[0054] Different types of signal sources can be used according to different usage scenarios. For example, when used in the design and maintenance of RF systems, in order to make the simulation test closer to the real RF system, a base station signal source can be used and connected to the branch to be tested. When used in training and teaching, a signal generator can be used to improve convenience.

[0055] The output end of the signal source 1 is connected to the input end of the object to be tested, and the signal source 1 sends an input signal to the input end of the object to be tested through the output end of the signal source. The object to be tested includes at least one of the following: a system module, an output branch, or any device in the system module or the output branch. The output branch includes at least one of the first branch, the second branch, and the third branch.

[0056] That is, the output end of the signal source 1 can be connected to the transmitting end of the system module (including the first system module and the second system module), or, the output end of the signal source 1 can be connected to the signal input end of the output branch (including at least one of the first branch, the second branch and the third branch), or, the signal source 1 can be connected to the input end of any device in the apparatus.

[0057] The spectrum analyzer 2 is used to test the spectrum power of the signal. According to the spectrum power of the signal, the correlation between two system modules, the signal parameters of the test branch, or the device parameters of the test device can be analyzed. The input end of the spectrum analyzer 2 is connected to the output end of the object to be tested. The spectrum analyzer receives the output signal sent by the output end of the object to be tested through the input end of the spectrum analyzer, tests the output signal, and outputs the spectrum power.

[0058] The radio frequency device with test function provided in the embodiment of the present disclosure includes a system module, which includes a first system module, a second system module and a combiner 3 connecting the first system module and the second system module, wherein the output end of the combiner 3 outputs the combined signal of the two systems. Figure 1 As shown, the first system module includes a first duplexer 11 , and the second system module includes a second duplexer 21 . The antenna ends of the first duplexer 11 and the second duplexer 21 are connected to the input end of the combiner 3 .

[0059] And if Figure 1 As shown, the output branch includes at least one of a first branch, a second branch, and a third branch.

[0060] The system provided in the embodiment of the present disclosure includes a dual system and includes different signal distribution branches. The signal distribution branches include different radio frequency devices. The system, signal distribution branches and radio frequency devices can be tested according to the test requirements. According to the test requirements, the signal source 1 and the spectrum analyzer 2 can be connected to the input and output ports of any device for testing. Among them, the signal source 1 can be connected to any input port, and the spectrum analyzer 2 can be connected to any output port.

[0061] Optionally, the signal source 1 and the spectrum analyzer 2 are used to test the correlation between the first system module and the second system module.

[0062] When testing the correlation between two system modules, the signal source 1 can provide input signals to the two system modules respectively, and the spectrum analyzer 2 can be used to test the output signals after the transmission signals of the two system modules are combined, and the correlation between the two systems can be determined based on the combined output signals.

[0063] Optionally, the signal source 1 and the spectrum analyzer 2 are used to test the signal quality of the uplink and / or downlink of the output branch (including at least one of the first branch, the second branch and the third branch). In this process, the output end of the signal source 1 is connected to the signal input end of the output branch, and the input end of the spectrum analyzer 2 is connected to the signal output end of the output branch. The signal source 1 provides an input signal to the output branch, and the spectrum analyzer 2 tests the spectrum power of the output signal, so that the signal quality can be determined.

[0064] Optionally, the signal source 1 and the spectrum analyzer 2 can also be used to test the system module and the output branch. In this case, the combiner 3 can be connected to at least one of the first branch, the second branch and the third branch.

[0065] Optionally, the signal source 1 and the spectrum analyzer 2 are used to test the device parameters of the first branch, the second branch, the third branch, and any device in the system module. In this process, the output end of the signal source 1 is connected to the signal input end of the target device (which can be any device), and the input end of the spectrum analyzer 2 is connected to the signal output end of the target RF device. The signal source 1 provides an input signal to the target RF device, and the device parameters of the target RF device are determined based on the spectrum power of the output signal tested by the spectrum analyzer 2. In the process of testing the device, the input and output ends of the device need to be disconnected from the device ports to which they were originally connected, and then connected to the signal source 1 and the spectrum analyzer 2 respectively.

[0066] It should be noted that the input signal and output signal involved in the embodiments of the present disclosure are for the object to be tested. The input signal refers to the signal input into the object to be tested, and the output signal is the signal output after the input signal passes through the object to be tested, that is, the output signal is the signal output by the object to be tested in response to the input signal.

[0067] The first branch includes a first directional coupler 31, an adjustable attenuator 32, a first load 33, and an antenna 34 connected to the first directional coupler in sequence; the second branch includes a second directional coupler 41, a second load 42 and a third load 43 connected to the second directional coupler 41; the third branch includes a second power divider 51, an attenuator 52, a fourth load 53, and a fifth load 54 connected to the second power divider in sequence. The first branch, the second branch, and the third branch are respectively composed of different devices, which can simulate different signal distribution branches. And it can also realize the test of different RF discrete devices.

[0068] The radio frequency device with a test function provided in the embodiments of the present disclosure can be used to test dual systems, different signal distribution branches, and different radio frequency discrete components, and can provide a reference for the design of a radio frequency system.

[0069] The disclosed embodiment provides a radio frequency device with a test function, wherein the system includes a signal source, a spectrum analyzer and an object to be tested, wherein the object to be tested includes a first system module and a second system module, and the first system module and the second system module can be tested to implement the test of the radio frequency performance indicators of the dual systems, which can be used to simulate the dual systems, and is helpful for the design and maintenance of the dual systems; and the object to be tested also includes an output branch, and the output branch can be different branches, and different branches can simulate different signal distribution branches. The signal source and the spectrum analyzer test the signal quality of uplinks or downlinks of different branches by connecting the input and output ports of different branches. Through the design of different signal distribution branches, the simulation of different signal distribution scenarios can be implemented, which is beneficial for the construction and maintenance of the distribution system; and the device parameters of independent devices in the device can also be tested, which can provide a reference for the design and maintenance of the radio frequency system, and is helpful for the design and maintenance of the radio frequency system.

[0070] Among them, the signal source 1 and the spectrum analyzer 2 can be used to test the correlation between the first system module and the second system module, that is, the object to be tested is the system module. When testing the correlation between systems, the output end of the signal source 1 is connected to the transmitting end of the first system module and the second system module respectively; and the input end of the spectrum analyzer 2 is connected to the output end of the combiner.

[0071] Optionally, during the correlation test, the same signal source may be used to provide radio frequency signals of different frequency bands to the first system module and the second system module, or different signal sources may be used to provide radio frequency signals of different frequency bands to the first system module and the second system module, for example, a 5G frequency band signal and a 4G frequency band signal may be sent to the first system module and the second system module, respectively, to input dual system signals.

[0072] The signal output by the combiner 3 is the signal output after the two signals are combined. The input end of the spectrum analyzer 2 can be connected to the output end of the combiner 3. The signals of the two systems are combined by the combiner and output to the spectrum analyzer 2. The output signal tested by the spectrum analyzer 2 includes the signals of the two systems. The correlation between the two systems can be determined based on the spectrum power output by the spectrum analyzer 2.

[0073] In another possible implementation, the object to be tested includes a system module and an output branch, and in this case, the output end of the combiner 3 is connected to the input end of the output branch. In this case, when testing the system correlation, the output end of the signal source 1 is respectively connected to the transmitting end of the first system module and the second system module; the input end of the spectrum analyzer 2 is connected to the output end of the output branch.

[0074] The output branch includes at least one of the first branch, the second branch and the third branch. The signals in the first branch, the second branch and the third branch are all signals after being combined by the combiner, wherein the signals in the first branch, the second branch and the third branch all include two RF signals, therefore, the spectrum analyzer 2 can be connected to the output end of any one of the first branch, the second branch and the third branch to test the spectrum of the two RF signals, and the correlation between the two systems can be determined according to the spectrum of the two RF signals.

[0075] Optionally, when the output branch is the first branch, the test can be performed based on the output end of the first branch. The input end of the first directional coupler 31 in the first branch is connected to the first output end of the three-power divider 4, the through end of the first directional coupler 31 is connected to the input end of the adjustable attenuator 32, and the coupling end of the first directional coupler 31 is connected to the antenna 34, and the output end of the adjustable attenuator 32 is connected to the first load 33. In the process of testing the correlation, the signal source 1 is connected to the transmitting end of the first system module and the second system module, and the spectrum analyzer 2 is connected to the output end of the first directional coupler 31 in the first branch to test the spectrum of the two RF signals; alternatively, the output end of the signal source 1 can also be connected to the transmitting end of the first system module and the second system module, and the output end of the spectrum analyzer 2 is connected to the output end of the adjustable attenuator 32. The input signal sent by the signal source to the first system module and the second system module is input to the first branch through the combiner 3, and then output to the spectrum analyzer 2 through the through end of the first directional coupler 31 in the first branch, or the output end of the adjustable attenuator 32. The spectrum power of the test output signal of the spectrum analyzer 2 is analyzed to obtain the system correlation.

[0076] Alternatively, the system correlation can also be tested based on the second branch. The input end of the second directional coupler 41 in the second branch is connected to the second output end of the three-power divider 4, and the output end of the second directional coupler 41 is connected to the third load 43, and the coupling end of the second directional coupler 41 is connected to the second load 42. At this time, the input end of the spectrum analyzer 2 is connected to the output end of the second directional coupler 41 in the second branch to test the spectrum of the two RF signals. The input signal sent by the signal source to the first system module and the second system module is input to the first branch through the combiner 3, and then output to the spectrum analyzer 2 through the second directional coupler 41 in the second branch. The spectrum power of the test output signal of the spectrum analyzer 2 is analyzed to obtain the system correlation.

[0077] Alternatively, the system correlation can also be tested based on the third branch. The first input end of the second power divider 51 in the third branch is connected to the third output end of the third power divider 4, and the first output end of the second power divider 51 is connected to the input end of the attenuator 52, the output end of the attenuator 52 is connected to the fourth load 53, and the second input end of the second power divider 51 is connected to the fifth load 54. At this time, the input end of the spectrum analyzer 2 is connected to the second output end of the second power divider 51 in the third branch to test the spectrum of the two RF signals. Alternatively, the input end of the spectrum analyzer 2 is connected to the output end of the attenuator 52 in the third branch. The input signal sent by the signal source to the first system module and the second system module is input to the third branch through the combiner 3, and then output to the spectrum analyzer 2 through the second power divider 51 or the attenuator 52 in the third branch. The spectrum analyzer 2 tests the spectrum power of the output signal and analyzes to obtain the system correlation.

[0078] The signal source 1 and the spectrum analyzer 2 can be used to test the uplink or downlink of the output branch. That is, the object to be tested is specifically the output branch.

[0079] When testing the downlink of the output branch, the output end of the signal source 1 is connected to the input end of the output branch, and the input end of the spectrum analyzer 2 is connected to the output end of the output branch.

[0080] And when the output branch is the first branch, the output end of the signal source 1 is connected to the input end of the first directional coupler 31, and the input end of the spectrum analyzer 2 is connected to the output end of the first directional coupler 31 or the output end of the adjustable attenuator 32. That is, the input signal sent by the signal source 1 is output to the spectrum analyzer 2 through the first directional coupler 31, or is output to the spectrum analyzer 2 through the first directional coupler 31 and the adjustable attenuator 32. The spectrum analyzer 2 can test the spectrum power of the output signal of the first branch to perform a downlink test on the first branch.

[0081] When the output branch is the second branch, the output end of the signal source 1 is connected to the input end of the second directional coupler 41, and the input end of the spectrum analyzer 2 is connected to the output end of the second directional coupler 41. The input signal sent by the signal source 1 is output to the spectrum analyzer 2 through the second directional coupler 41, and the spectrum analyzer 2 can test the spectrum power of the output signal of the second branch to perform a downlink test on the second branch.

[0082] When the output branch is the third branch, the output end of the signal source 1 is connected to the input end of the second power divider 51, and the input end of the spectrum analyzer 2 is connected to the output end of the second power divider 51 or the output end of the attenuator 52. The input signal sent by the signal source 1 is output to the spectrum analyzer 2 through the second power divider 51, or is output to the spectrum analyzer 2 through the second power divider 51 and the attenuator 52. The spectrum analyzer 2 can test the spectrum power of the output signal of the second branch to perform a downlink test on the second branch.

[0083] When the object to be tested includes a system module and an output branch, the signal input end of the output branch is the transmitting end of the first system module or the second system module, the signal source 1 can be connected to the transmitting end of the first system module or the second system module, and the spectrum analyzer 2 is connected to the output end of the output branch.

[0084] In another possible implementation, during the test of the downlink of the first branch, the input end of the signal source 1 can be connected to any transmitting end of the first system module or the second system module, and the first branch includes an output end of a first directional coupler 31 connected to an antenna 34 and an output end of an adjustable attenuator 32 connected to a first load 33. The spectrum analyzer 2 can be connected to the output end of the first directional coupler 31, or the spectrum analyzer 2 can be connected to the output end of the adjustable attenuator 32 to test the downlink of the first branch.

[0085] In another possible implementation, when a downlink test is performed on the second branch, the input end of the signal source 1 can be connected to any transmitting end of the first system module or the second system module, and the output end and the coupling end of the second directional coupler 41 in the second branch can be connected to the second load 42 and the third load 43 respectively, and the spectrum analyzer 2 can be connected to the output end of the second directional coupler 41 to test the downlink of the second branch.

[0086] In another possible implementation, when a downlink test is performed on the third branch, the input end of the signal source 1 can be connected to any transmitting end of the first system module or the second system module, and the third branch includes an output end of an attenuator 52 connected to a fourth load 53 and a second output end of a power divider 51 connected to a fifth load 54. The spectrum analyzer 2 can be connected to the output end of the attenuator 52, or the spectrum analyzer 2 can be connected to the second output end of the power divider 51 to test the downlink of the third branch.

[0087] And when the output branch includes the first branch, the second branch and the third branch, if Figure 2 As shown, the device further includes a three-power divider 4, the input end of the three-power divider 4 is connected to the output end of the combiner 3, and the output end of the three-power divider 4 is respectively connected to the input ends of the first branch, the second branch and the third branch.

[0088] The output end of the signal source is connected to the transmitting end of the first system module or the second system module. The input end of the spectrum analyzer is connected to the output end of the first directional coupler or the output end of the adjustable attenuator, to the output end of the second directional coupler, and to the output end of the two-power divider or the output end of the attenuator. That is, the spectrum analyzer 2 is respectively connected to the output ends of the first branch, the second branch and the third branch to test the downlink of the first branch, the second branch and the third branch. At this time, the input signal provided by the signal source passes through the first system module or the second system module to the combiner, and then input into the first branch, the second branch and the third branch.

[0089] Optionally, the signal source 1 and the spectrum analyzer 2 may also be used to test the uplink of the output branch.

[0090] Specifically, the objects to be tested are the system module and the first branch. In this case, the device also includes: a transmitting antenna connected to the antenna communication, the output end of the signal source is connected to the transmitting antenna; the input end of the spectrum analyzer is connected to the receiving end of the first system module or the receiving end of the second system module.

[0091] Among them, the transmitting antenna can be any type of antenna, and this embodiment does not limit this. Schematically, the transmitting antenna can be an omnidirectional whip antenna. When the uplink of the first branch is tested, the signal source can be connected to the port of the omnidirectional whip antenna, and then the omnidirectional whip antenna is placed near the antenna in the first branch, and the preset power is transmitted through the omnidirectional whip antenna. Then the spectrum analyzer 2 is connected to the receiving end of the first system module or the second system module. At this time, the receiving end of the first system module or the second system module has a signal received through the first branch, and the uplink can be tested.

[0092] That is, the output branch is the first branch. When the uplink of the first branch is tested, the signal source 1 can be connected to the input port of the transmitting antenna, and a communication connection is established between the transmitting antenna and the antenna 34 to transmit a signal of a preset power to the antenna 34. Then, the spectrum analyzer 2 is connected to the receiving end of either the first system module or the second system module to realize the test of the uplink of the first branch.

[0093] Optionally, the uplink test of the second branch and the third branch can also be performed. When the uplink of the second branch is tested, the signal source 1 can be connected to the input port of the transmitting antenna. The second branch includes a second load 42 and a third load 43. Any device provided in the embodiment of the present disclosure is a detachable device, and the second load 42 or the third load 43 can be replaced by an antenna. The transmitting antenna is used to transmit a signal of preset power to the replaced antenna. Similarly, the receiving end of the first system module or the second system module of the signal source 1 is connected to realize the uplink test of the second branch.

[0094] Optionally, when testing the uplink of the third branch, the signal source 1 may be connected to the input port of the transmitting antenna. The third branch includes a fourth load 53 and a fifth load 54. Any device provided in the embodiment of the present disclosure is a detachable device, and the fourth load 53 or the fifth load 54 may be replaced by an antenna. The transmitting antenna is used to transmit a signal of preset power to the replaced antenna. Similarly, the receiving end of the first system module or the second system module of the signal source 1 is connected to realize the test of the uplink of the third branch.

[0095] The signal source 1 and the spectrum analyzer 2 are also used to test the filter. During the test, the signal source 1 can be connected to the input end of the transmitting antenna and placed near the antenna 34 in the first branch. Another signal source can be connected to the output end of the attenuator 52 in the third branch. The spectrum analyzer 2 is then connected to the antenna end of any duplexer to test the combined signals of the two systems and record the power of the combined signals. The spectrum analyzer 2 is then connected to the receiving ends of the two systems to obtain the output signals of the two systems. By comparing the test signals, it can be evaluated whether the filter meets the filtering requirements.

[0096] Furthermore, the signal source 1 and the spectrum analyzer 2 can also be used to test device parameters of target test devices in the first branch, the second branch, the third branch, and the fourth branch.

[0097] Different radio frequency devices are required in the radio frequency system, and the first branch, the second branch, and the third branch provided in the embodiment of the present disclosure are respectively composed of different radio frequency devices, and the first system module and the second system module also include different radio frequency devices.

[0098] The first system module further includes a power amplifier 12 and a first filter 13; the second system module further includes a second filter 22; the transmitting end of the first system module is connected to the input end of the power amplifier 12, the output end of the power amplifier 12 is connected to the transmitting end of the first duplexer 11, the receiving end of the first duplexer 11 is connected to the input end of the first filter 13, and the output end of the first filter 13 is connected to the receiving end of the first duplexer 11; the transmitting end of the second system module is connected to the transmitting end of the second duplexer 21, the receiving end of the second duplexer 21 is connected to the input end of the second filter 22, and the output end of the second filter 22 is connected to the receiving end of the second system module. The first branch includes a first directional coupler 31, an adjustable attenuator 32, a first load 33, and an antenna 34; the second branch includes a second directional coupler 41, a second load 42, and a third load 43; the third branch includes a second power divider 51, an attenuator 52, a fourth load 53, and a fifth load 54.

[0099] Among them, the adjustable attenuator is used to control the signal transmission energy and can be used to adjust the antenna power in the radio frequency system; the power amplifier is used to amplify the signal and can compensate for the power when the power becomes low and cannot meet the coverage requirements; the power divider is used to distribute the signal evenly to multiple branches, such as a three-power divider is used to distribute the signal evenly to three branches, and a two-power divider is used to distribute the signal evenly to two branches; the directional coupler is used to couple the signal to different output ports in different proportions to achieve unequal distribution; the filter is used to filter signals of preset frequencies.

[0100] The antenna in each branch is used to transmit or receive signals, and the load is used to achieve impedance matching of the device. Optionally, the power of the first load, the second load, the third load, the fourth load, and the fifth load is greater than or equal to 5W, and the impedance of each device can be 50 ohms to achieve impedance matching. Optionally, the loads in the branches can be replaced with antennas to simulate more signal distribution branches.

[0101] In the system provided by the embodiment of the present disclosure, each device is connected to the feeder through a connector, and each device is a detachable device. Optionally, the feeder can be a 3 / 4 inch feeder.

[0102] According to the test requirements, the signal source 1 and the spectrum analyzer 2 can be connected to any port of the device for testing. The signal source 1 can be connected to any input port, and the spectrum analyzer 2 can be connected to any output port.

[0103] When testing the target RF device, the input end of the signal source 1 may be connected to the input end of the target RF device; and the input end of the spectrum analyzer 2 may be connected to the output end of the target RF device.

[0104] Optionally, the signal source 1 and the spectrum analyzer 2 are used to test the isolation of the duplexer, the loss value of the attenuator, the coupling value of the directional coupler, and the gain of the power amplifier.

[0105] In an illustrative embodiment, the signal source 1 and the spectrum analyzer 2 are used to test the isolation of the duplexer. When testing the first duplexer 11, the three ports of the first duplexer 11 can be disconnected, the output end of the signal source 1 is connected to the transmitting end and the antenna end of the first duplexer 11, and the receiving end of the first duplexer 11 is connected to the input end of the spectrum analyzer 2. A signal with a preset power can be sent to the first duplexer 11 by the signal source 1, and the spectrum analyzer 2 can test the power of the signal received by the first duplexer 11. According to the preset power and the tested power, the isolation of the first duplexer 11 can be determined.

[0106] In another illustrative embodiment, the signal source 1 and the spectrum analyzer 2 are used to test the coupling value of the second directional coupler 41. The output end of the signal source 1 can be connected to the input end of the second directional coupler 41, and the output end of the spectrum analyzer 2 can be connected to the coupling end of the second directional coupler 41. The coupling value of the second directional coupler 21 can be determined based on the preset power sent by the signal source 1 and the actual power tested by the spectrum analyzer 2.

[0107] In another exemplary embodiment, the signal source 1 and the spectrum analyzer 2 are used to test the first adjustable attenuator 32, and the input end of the first adjustable attenuator 32 can be disconnected from the first directional coupler 31 and connected to the output end of the signal source 1, and the output end of the first adjustable attenuator 32 can be disconnected from the first load 33 and connected to the spectrum analyzer 2. The signal source 1 sends a signal of preset power to the first adjustable attenuator 32, and the spectrum analyzer 2 can test the power value of the output signal.

[0108] In another exemplary embodiment, the signal source 1 and the spectrum analyzer 2 are used to test the power amplifier 12, and the input end of the power amplifier 12 can be connected to the output end of the signal source 1, and the output end of the power amplifier 12 is disconnected from the first duplexer 11 and connected to the input end of the spectrum analyzer 2. According to the preset power of the signal sent by the signal source 1 and the actual power tested by the spectrum analyzer 2, the gain of the power amplifier can be calculated.

[0109] It should be noted that during the test process, the signal source can emit a preset signal that meets the test requirements according to the test requirements, such as a signal in the 5G frequency band.

[0110] In the disclosed embodiment, the ports of any device in the RF device with test function are independent and can be disconnected and connected arbitrarily. The signal source and spectrum analyzer can be connected to any port to test different branches or different devices and different systems. The test parameters of each part can be used in the design and maintenance process of the RF system to provide reliable experimental parameters for the design and maintenance of the RF system. The system includes a variety of RF devices, and tests on different devices are implemented to determine the RF performance of different devices, providing guidance for using them in RF systems.

[0111] In order to more easily connect the input and output ports of the port device, in the embodiment of the present disclosure, the input and output ends of at least one device in the radio frequency device are provided with a subminiature connector. Optionally, the subminiature connector may be a subminiature version A (SMA).

[0112] That is, any device in the first branch, the second branch, and the third branch and the input and output ports of the devices in the first system module and the second system module are connected through the SMA connector.

[0113] Most of the ports of the device are N-type ports. Since N-type ports are not easy to operate, in order to more conveniently connect the ports, the N-type ports are uniformly converted to SMA-type ports for connection. Figure 3 As shown, for an N-type port of a device, it is first converted to an SMA-type port through an N-to-SMA connector, and then the SMA port is connected to the SMA-to-N connector, and the SMA-to-N connector is then connected to the N-type port of another device to be connected. The SMA port is connected to the SMA-to-N connector and the N-to-SMA connector through the opening of the SMA, and the two SMA ports are connected through a feeder.

[0114] In combination with the above example, when the output end of the three-power divider 4 and the input port of the first directional coupler 31 are both N-type ports and the two need to be connected, the output end of the three-power divider 4 can be connected to the N-to-SMA connector, and then the N-to-SMA connector is connected to the SMA port through the SMA bayonet, and the SMA port is then connected to the SMA-to-N connector, and the input N-type port of the first directional coupler 31 is connected to the SMA-to-N connector, so as to realize the connection between the output end of the three-power divider 4 and the input port of the first directional coupler 31.

[0115] Different types of antennas may be used in the RF system to transmit or receive signals. To help technicians better understand the differences between different types of antennas and the actual effects achieved, the loads in the first branch, the second branch, and the third branch can be replaced with antennas, and different types of antennas can be used in different test branches.

[0116] Optionally, the first branch, the second branch and the third branch include at least two different types of antennas.

[0117] In a possible implementation manner, the first branch, the second branch, and the third branch may respectively use antennas of different types.

[0118] In another possible implementation manner, there may be at least two antennas of the same type in the first branch, the second branch, and the third branch, for comparison of different branches.

[0119] Illustratively, the antennas in two different branches may be indoor mushroom antennas; the other antennas in the two different branches may be log-periodic antennas; and another branch may be a plate antenna.

[0120] By using different types of antennas, the performance of different antennas in the RF system can be simulated, providing a reference for the selection of antennas during the design process, so as to better design the RF system.

[0121] The RF device with testing function provided in the embodiment of the present disclosure integrates discrete RF devices commonly used in mobile communication systems and indoor distribution systems, which can be used to test the performance indicators of the RF devices themselves and the comprehensive performance of the integrated system to achieve simulation of the RF system.

[0122] In a possible scenario, the radio frequency device with a test function provided by the embodiment of the present disclosure can be used in the design and maintenance process of the radio frequency system. In the design or debugging process of the radio frequency system, the radio frequency device with a test function provided by the embodiment of the present disclosure can be used to simulate and test different signal distribution branches, and test and analyze the signal distribution conditions of different signal distribution branches. According to the test and analysis results, problems existing in the radio frequency system can be found and analyzed to better design and maintain the radio frequency system. And the system provided by the embodiment of the present disclosure can be used in the design and maintenance process of the dual system. The dual system can combine and transmit radio frequency signals of different frequency bands. When used in an indoor distribution system, signals of different frequency bands can be transmitted to indoor distribution antennas to achieve better signal coverage. Schematically, the dual system can be the Long-Term Evolution (LTE) system of the fourth generation mobile technology (4G) and the new wireless system (NewRadio, NR) of the fifth generation mobile technology (5G). That is, the first system module and the second system module of the test device provided by the embodiment of the present disclosure can respectively input signals of different systems, such as LTE and NR signals.

[0123] In another possible scenario, the radio frequency device with a test function provided by the embodiment of the present disclosure can be used in the training and teaching process related to the radio frequency system. In the training and teaching process related to the radio frequency system, the test device provided by the embodiment of the present disclosure can be used to test the signal distribution effect that can be brought about by different signal distribution branches, and by testing different devices, the role of different devices in the radio frequency system can be intuitively demonstrated, which helps technicians to understand the radio frequency system more intuitively. Accordingly, it can be used in the training and teaching process of the dual system.

[0124] The basic principles of the present disclosure are described above in conjunction with specific embodiments. However, it should be noted that the advantages, strengths, effects, etc. mentioned in the present disclosure are only examples and not limitations, and it cannot be considered that these advantages, strengths, effects, etc. are required by each embodiment of the present disclosure. In addition, the specific details disclosed above are only for the purpose of illustration and ease of understanding, and are not limitations. The above details do not limit the present disclosure to the necessity of adopting the above specific details to be implemented.

[0125] Each embodiment in this specification is described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the embodiments can be referred to each other. For the system embodiment, since it basically corresponds to the method embodiment, the description is relatively simple, and the relevant parts can be referred to the partial description of the method embodiment.

[0126] The block diagrams of the devices, apparatuses, equipment, and systems involved in this disclosure are only illustrative examples and are not intended to require or imply that they must be connected, arranged, and configured in the manner shown in the block diagrams. As will be appreciated by those skilled in the art, these devices, apparatuses, equipment, and systems can be connected, arranged, and configured in any manner. Words such as "including," "comprising," "having," and the like are open words, referring to "including but not limited to," and can be used interchangeably therewith. The words "or" and "and" used herein refer to the words "and / or," and can be used interchangeably therewith, unless the context clearly indicates otherwise. The word "such as" used herein refers to the phrase "such as but not limited to," and can be used interchangeably therewith.

[0127] The apparatus of the present disclosure may be implemented in many ways. For example, the apparatus of the present disclosure may be implemented by hardware, firmware, or any combination of hardware and firmware.

[0128] It should also be noted that in the device of the present disclosure, each component or each step can be decomposed and / or reassembled. These decompositions and / or reassemblies should be regarded as equivalent solutions of the present disclosure.

[0129] The above description of the disclosed aspects is provided to enable any person skilled in the art to make or use the present disclosure. Various modifications to these aspects will be readily apparent to those skilled in the art, and the general principles defined herein may be applied to other aspects without departing from the scope of the present disclosure. Therefore, the present disclosure is not intended to be limited to the aspects shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

[0130] The above description has been given for the purpose of illustration and description. In addition, this description is not intended to limit the embodiments of the present disclosure to the forms disclosed herein. Although multiple example aspects and embodiments have been discussed above, those skilled in the art will recognize certain variations, modifications, changes, additions and sub-combinations thereof.

Claims

1. A radio frequency device with a testing function, characterized in that: The radio frequency device includes a signal source, a spectrum analyzer and an object to be tested; The output end of the signal source is connected to the input end of the object to be tested, and the signal source sends an input signal to the input end of the object to be tested through the output end of the signal source; The input end of the spectrum analyzer is connected to the output end of the object to be tested, the spectrum analyzer receives the output signal sent by the output end of the object to be tested through the input end of the spectrum analyzer, tests the output signal, and outputs the spectrum power; The object to be tested includes at least one of the following: a system module, an output branch, or any device in the system module or the output branch; The system module comprises: a first system module, a second system module and a combiner connecting the first system module and the second system module; The output branch includes at least one of a first branch, a second branch and a third branch; The first branch includes: a first directional coupler, an adjustable attenuator, a first load connected in sequence, and an antenna connected to the first directional coupler; The second branch includes: a second directional coupler, a second load connected to the second directional coupler, and a third load; The third branch includes: two power dividers, an attenuator, a fourth load connected in sequence, and a fifth load connected to the two power dividers.

2. The device according to claim 1, characterized in that The object to be tested is specifically the system module; The output end of the signal source is connected to the transmitting end of the first system module and the second system module respectively; The input end of the spectrum analyzer is connected to the output end of the combiner.

3. The device according to claim 1, characterized in that The object to be tested is specifically the output branch; When the output branch is specifically the first branch, the output end of the signal source is connected to the input end of the first directional coupler, and the input end of the spectrum analyzer is connected to the output end of the first directional coupler or the output end of the adjustable attenuator; When the output branch is specifically the second branch, the output end of the signal source is connected to the input end of the second directional coupler, and the input end of the spectrum analyzer is connected to the output end of the second directional coupler; When the output branch is specifically the third branch, the output end of the signal source is connected to the input end of the two-power divider, and the input end of the spectrum analyzer is connected to the output end of the two-power divider or the output end of the attenuator.

4. The device according to claim 1, characterized in that The object to be tested is specifically the system module and the output branch, and the input end of the output branch is connected to the output end of the combiner; The output end of the signal source is connected to the transmitting end of at least one of the first system module and the second system module; The input end of the spectrum analyzer is connected to the output end of the output branch.

5. The device according to claim 4, characterized in that The output branch is specifically the first branch, the second branch and the third branch; The device further comprises: a three-power divider, the input end of the three-power divider is connected to the output end of the combiner, and the output end of the three-power divider is respectively connected to the input ends of the first branch, the second branch and the third branch; The input end of the spectrum analyzer is connected to the output end of the first directional coupler or the output end of the adjustable attenuator, to the output end of the second directional coupler, and to the output end of the two-power divider or the output end of the attenuator.

6. The device according to claim 1, characterized in that The output branch is specifically a system module and the first branch; The device further includes: a transmitting antenna communicatively connected to the antenna, the output end of the signal source being connected to the transmitting antenna; The input end of the spectrum analyzer is connected to the receiving end of the first system module or the receiving end of the second system module.

7. The device according to any one of claims 1 to 6, characterized in that: The input end and the output end of at least one device in the radio frequency device are provided with subminiature connectors.

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