CN211656153U - Connector assembly for performing multi-channel interference testing - Google Patents
Connector assembly for performing multi-channel interference testing Download PDFInfo
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- CN211656153U CN211656153U CN202020654050.2U CN202020654050U CN211656153U CN 211656153 U CN211656153 U CN 211656153U CN 202020654050 U CN202020654050 U CN 202020654050U CN 211656153 U CN211656153 U CN 211656153U
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Abstract
The application discloses a connector assembly for carrying out multichannel interference test includes: the multi-channel transmission terminal comprises a terminal equipment interface group, an interference equipment interface group, an up-down converter interface group and a path switching component for connecting the terminal equipment interface group, the interference equipment interface group and the up-down converter interface group, wherein the terminal equipment interface group comprises a plurality of interfaces for connecting with the multi-channel transmission terminal; the interference equipment interface group comprises a plurality of interfaces for connecting with interference equipment; the up-down converter interface set comprises a plurality of interfaces for connecting with the up-down converter; and the path switching assembly is arranged among the terminal equipment interface group, the interference equipment interface group and the up-down converter interface group and comprises a plurality of lines and a plurality of switch units connected with the plurality of lines, wherein the test links among the terminal equipment interface group, the interference equipment interface group and the up-down converter interface group can be switched by setting the switch states of the plurality of switch units.
Description
Technical Field
The present application relates to the field of multi-channel transmission terminal interference testing techniques, and more particularly, to a connector assembly for performing multi-channel interference testing.
Background
In a satellite navigation system, a phased array radar system, a 5G communication beam forming system and other modern technologies, a multi-channel transmission architecture with consistent amplitude and phase is required to complete functions. These multi-channel transmission terminals for transmitting signals must have strict phase consistency (the multiple channels of the terminal are correlated and the connector assembly is consistent) while being able to handle the interference added to the signals, since various interference from the outside is always added to the signal transmission. Therefore, when a function and performance evaluation test needs to be performed on the multi-channel transmission terminal itself, in addition to an actual effect (using an ideal transmission channel) test, an interference (under the transmission channel) test, that is, a test of the anti-interference capability of the multi-channel transmission terminal needs to be performed. However, a set of scientific and effective test system for interference test of the multi-channel transmission terminal is lacked at present.
SUMMERY OF THE UTILITY MODEL
The utility model provides a connector assembly for carrying out multichannel interference test can scientific and effective carry out the interference test to multichannel transmission terminal.
The application provides a connector assembly for carrying out multichannel interference test for carry out the interference test to multichannel transmission terminal, include: the multi-channel transmission terminal comprises a terminal equipment interface group, an interference equipment interface group, an up-down converter interface group and a path switching component for connecting the terminal equipment interface group, the interference equipment interface group and the up-down converter interface group, wherein the terminal equipment interface group comprises a plurality of interfaces for connecting with the multi-channel transmission terminal; the interference equipment interface group comprises a plurality of interfaces for connecting with interference equipment; the up-down converter interface set comprises a plurality of interfaces for connecting with the up-down converter; and the path switching assembly is arranged among the terminal equipment interface group, the interference equipment interface group and the up-down converter interface group and comprises a plurality of lines and a plurality of switch units connected with the plurality of lines, wherein the test links among the terminal equipment interface group, the interference equipment interface group and the up-down converter interface group can be switched by setting the switch states of the plurality of switch units.
Optionally, the terminal device interface group includes a terminal transceiving interface for connecting with a transceiving interface of the first multi-channel transmission terminal, a terminal receiving interface for connecting with a receiving interface of the second multi-channel transmission terminal, and a terminal transmitting interface for connecting with a transmitting interface of the second multi-channel transmission terminal; the interference equipment interface group comprises a noise source interface used for being connected with a noise source and an interference source interface used for being connected with an interference source; and the up-down converter interface group comprises an up-converter interface used for being connected with the up-converter and a down-converter interface used for being connected with the down-converter.
Optionally, the test link includes a first test link and a second test link, where in the first test link, the noise source interface and the interference source interface are both connected to the terminal transceiving interface, and the up-converter interface and the down-converter interface are both connected to the terminal transceiving interface; in the second test link, a noise source interface and an interference source interface are both connected with a terminal receiving interface, an up-converter interface is connected with a terminal sending interface, and a down-converter interface is connected with the terminal receiving interface; and the path switching component comprises a switch unit arranged among the noise source interface, the interference source interface, the terminal transceiving interface, the terminal receiving interface, the terminal transmitting interface, the up-converter interface and the down-converter interface and is used for realizing the switching between the first test link and the second test link.
Optionally, the test link includes a third test link and a fourth test link, where in the third test link, the noise source interface and the interference source interface are both connected to the up-converter interface, and the up-converter interface and the down-converter interface are both connected to the terminal transceiver interface; in the fourth test link, a noise source interface and an interference source interface are both connected with an up-converter interface, the up-converter interface is connected with a terminal sending interface, and a down-converter interface is connected with a terminal receiving interface; and the path switching component comprises a switch unit arranged among the noise source interface, the interference source interface, the terminal transceiving interface, the terminal receiving interface, the terminal transmitting interface, the up-converter interface and the down-converter interface and is used for realizing the switching between the third test link and the fourth test link.
Optionally, the test link includes a fifth test link and a sixth test link, where in the fifth test link, both the up-converter interface and the down-converter interface are connected to the terminal transceiver interface; in a sixth test link, an up-converter interface is connected with a terminal sending interface, and a down-converter interface is connected with a terminal receiving interface; and the path switching component comprises a switch unit arranged among the terminal transceiving interface, the terminal receiving interface, the terminal sending interface, the up-converter interface and the down-converter interface and is used for realizing the switching between the fifth test link and the sixth test link.
Optionally, the path switching component further includes a power divider unit disposed between the terminal device interface group, the interference device interface group, and the up-down converter interface group, and configured to distribute an interference signal of the test link.
Optionally, the path switching component further includes an adjustable phase shifter unit disposed between the terminal device interface group, the interference device interface group, and the up-down converter interface group, and configured to control a phase of the test link.
Optionally, the path switching module further includes an adjustable attenuator unit disposed between the terminal device interface group, the interference device interface group, and the up-down converter interface group, and configured to control an amplitude of the test link.
Optionally, the path switching module further includes a high power attenuator unit disposed between the terminal device interface group and the up-down converter interface group, and configured to attenuate power of the test link.
Optionally, the path switching module further includes a duplexer unit disposed between the terminal transceiving interface, the interfering device interface group, and the up-down converter interface group, and configured to merge the uplink signal and the downlink signal.
Therefore, according to the connector assembly provided by the application, the connector assembly can be connected with a multi-channel transmission terminal to be tested through the terminal equipment interface group, the connector assembly can be connected with interference equipment through the interference equipment interface group, and the connector assembly can be connected with an up-down converter through the up-down converter interface group. And the testing links among the terminal equipment interface group, the interference equipment interface group and the up-down converter interface group can be switched by setting the switching states of a plurality of switching units in the path switching assembly. Therefore, the interference test can be carried out on the multi-channel transmission terminal scientifically and effectively, and meanwhile, the interference test can be carried out on the whole multi-channel transmission system and the performance test can be carried out on the multi-channel transmission terminal.
The above and other objects, advantages and features of the present application will become more apparent to those skilled in the art from the following detailed description of specific embodiments thereof, taken in conjunction with the accompanying drawings.
Drawings
Some specific embodiments of the present application will be described in detail hereinafter by way of illustration and not limitation with reference to the accompanying drawings. The same reference numbers in the drawings identify the same or similar elements or components. Those skilled in the art will appreciate that the drawings are not necessarily drawn to scale. In the drawings:
FIG. 1 is a schematic diagram of a connector assembly for performing multi-channel interference testing in accordance with an embodiment of the present application;
FIG. 2 is a schematic diagram of the internal circuit connections of the connector assembly shown in FIG. 1 for performing a multi-channel interference test;
fig. 3 is a schematic connection diagram of a first link under test according to an embodiment of the present application;
FIG. 4 is a schematic connection diagram of a second test link according to an embodiment of the present application;
FIG. 5 is a schematic connection diagram of a third test link according to an embodiment of the present application;
FIG. 6 is a schematic connection diagram of a fourth test link according to an embodiment of the present application;
FIG. 7 is a schematic connection diagram of a fifth test link according to an embodiment of the present application; and
fig. 8 is a schematic connection diagram of a sixth test link according to an embodiment of the present application.
Detailed Description
It should be noted that, in the present disclosure, the embodiments and features of the embodiments may be combined with each other without conflict. The present disclosure will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
In order to make the technical solutions of the present disclosure better understood by those skilled in the art, the technical solutions of the embodiments of the present disclosure will be clearly and completely described below with reference to the drawings in the embodiments of the present disclosure, and it is obvious that the described embodiments are only some embodiments of the present disclosure, not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments disclosed herein without making any creative effort, shall fall within the protection scope of the present disclosure.
It should be noted that the terms "first," "second," and the like in the description and claims of the present disclosure and in the above-described drawings are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the terms so used are interchangeable under appropriate circumstances for describing the embodiments of the disclosure herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.
Fig. 1 is a schematic diagram of a connector assembly 10 for performing multi-channel interference testing according to an embodiment of the present application, and referring to fig. 1, the present embodiment provides a connector assembly 10 for performing multi-channel interference testing, which is used for performing interference testing on a multi-channel transmission terminal, and includes: a terminal device interface group 100, an interference device interface group 200, an up-down converter interface group 300, and a path switching component 400 for connecting the terminal device interface group 100, the interference device interface group 200, and the up-down converter interface group 300, wherein the terminal device interface group 100 includes a plurality of interfaces for connecting with a multi-channel transmission terminal; the interfering device interface group 200 includes a plurality of interfaces for connecting with interfering devices; the up-down converter interface set 300 includes a plurality of interfaces for connecting with the up-down converter; and the path switching component 400 is disposed between the terminal device interface group 100, the interference device interface group 200, and the up-down converter interface group 300, and includes a plurality of lines and a plurality of switch units 410 connected to the plurality of lines, wherein by setting the switch states of the plurality of switch units, the test links among the terminal device interface group 100, the interference device interface group 200, and the up-down converter interface group 300 can be switched.
As described in the background, in many modern technologies, such as satellite navigation systems, phased array radar systems, and beamforming systems for 5G communications, a multi-channel transmission architecture with consistent amplitude and phase is required to perform functions. These multi-channel transmission terminals for transmitting signals must have strict phase consistency while being able to handle the interference added to the signals, since various interferences from the outside world are always added to the signal transmission. Therefore, when a function and performance evaluation test needs to be performed on the multi-channel transmission terminal itself, in addition to an actual effect test, an interference test, that is, an anti-interference capability of the multi-channel transmission terminal needs to be tested.
In view of the above, the present application provides a connector assembly 10 for performing interference testing on a multi-channel transmission terminal. Referring to fig. 1, a connector assembly 10 includes a terminal equipment interface set 100, an interfering equipment interface set 200, an up-down converter interface set 300, and a path switching assembly 400. The multi-channel transmission terminal is, for example, but not limited to, a transmit-receive integrated multi-channel transmission terminal, and a transmit-receive separated multi-channel transmission terminal. In the process of performing interference test on a multi-channel transmission terminal, the connector assembly 10 may be connected to the multi-channel transmission terminal to be tested through the terminal device interface set 100, then the connector assembly 10 may be connected to an interference device (such as, but not limited to, a noise source and an interference source) through the interference device interface set 200, and the connector assembly 10 may be connected to the up-down converter through the up-down converter interface set 300.
Further, the path switching assembly 400 includes a plurality of lines and a plurality of switching units 410 connecting the plurality of lines. Thus, by setting the switching states of the plurality of switching units, the test links among the terminal device interface group 100, the interference device interface group 200, and the up-down converter interface group 300 can be switched. Therefore, by the mode, a set of complete multi-channel interference test system is formed, so that the interference test can be carried out on the multi-channel transmission terminal scientifically and effectively.
Alternatively, referring to fig. 1, the terminal device interface group 100 includes a terminal transceiving interface 110 for connecting with a transceiving interface of a first multi-channel transmission terminal, a terminal receiving interface 120 for connecting with a receiving interface of a second multi-channel transmission terminal, and a terminal transmitting interface 130 for connecting with a transmitting interface of the second multi-channel transmission terminal; the interfering device interface group 200 includes a noise source interface 210 for connecting with a noise source and an interfering source interface 220 for connecting with an interfering source; and the set of up-down converter interfaces 300 comprises an up-converter interface 310 for interfacing with an up-converter and a down-converter interface 320 for interfacing with a down-converter. The first multi-channel transmission terminal may be a transceiving multi-channel transmission terminal, and the second multi-channel transmission terminal may be a transceiving multi-channel transmission terminal. Thus, in this way, interference tests can be performed on different types of multi-channel transmission terminals.
Optionally, the test link includes a first test link and a second test link, where in the first test link, the noise source interface 210 and the interference source interface 220 are both connected to the terminal transceiver interface 110, and the up-converter interface 310 and the down-converter interface 320 are both connected to the terminal transceiver interface 110; in the second test link, the noise source interface 210 and the interference source interface 220 are both connected to the terminal receiving interface 120, the up-converter interface 310 is connected to the terminal sending interface 130, and the down-converter interface 320 is connected to the terminal receiving interface 120; and the path switching component 400 includes a switch unit disposed between the noise source interface 210, the interference source interface 220, the terminal transceiving interface 110, the terminal receiving interface 120, the terminal transmitting interface 130, the up-converter interface 310, and the down-converter interface 320, and is configured to implement switching between the first test link and the second test link.
Specifically, fig. 2 shows an internal structural diagram of the connector assembly 10, and fig. 3 shows a connection diagram of the first test link. Referring to fig. 1, 2 and 3, in the first test link, since the noise source interface 210 and the interference source interface 220 are both connected to the terminal transceiving interface 110 for connection with the first multi-channel transmission terminal, interference signals generated by a noise source (e.g., AWGN noise source) and an interference source (e.g., CW interference source) are added to four transceiving channels of the first multi-channel transmission terminal (i.e., transceiving-combined multi-channel transmission terminal), thereby performing an interference test on the transceiving-combined multi-channel transmission terminal.
Further, fig. 4 shows a connection diagram of the second test link. Referring to fig. 1, 2 and 4, in the second test link, since the noise source interface 210 and the interference source interface 220 are both connected to the terminal receiving interface 120 for connection with the second multi-channel transmission terminal, interference signals generated by a noise source (e.g., AWGN noise source) and an interference source (e.g., CW interference source) are added to four receiving channels of the second multi-channel transmission terminal (i.e., the transceiving separated multi-channel transmission terminal), thereby performing an interference test on the transceiving separated multi-channel transmission terminal. And, the switch unit in the path switching module 400 is used to switch the first test link and the second test link, so that the interference test can be performed on different types of multi-channel transmission terminals based on one set of interference test system.
In addition, the uplink power capacity of the multi-channel transmission terminal is 40W; path from the multichannel transmission terminal up to the up-converter: the frequency range is 1980-2010MHz, and the total attenuation is 46 dB; the down converter down-links to the multi-channel transmission terminal path: the frequency range is 2170-2200MHz, and the total attenuation is 55 dB; and interference or noise sources to the multi-channel transmission terminal path: the frequency range is 1980-2200 MHz, and the total attenuation is about 32 dB.
Optionally, the test link includes a third test link and a fourth test link, where in the third test link, the noise source interface 210 and the interference source interface 220 are both connected to the up-converter interface 310, and the up-converter interface 310 and the down-converter interface 320 are both connected to the terminal transceiver interface 110; in the fourth test link, the noise source interface 210 and the interference source interface 220 are both connected to the up-converter interface 310, the up-converter interface 310 is connected to the terminal sending interface 130, and the down-converter interface 320 is connected to the terminal receiving interface 120; and the path switching component 400 includes a switch unit disposed between the noise source interface 210, the interference source interface 220, the terminal transceiving interface 110, the terminal receiving interface 120, the terminal transmitting interface 130, the up-converter interface 310, and the down-converter interface 320, and is configured to implement switching between the third test link and the fourth test link.
In particular, fig. 5 shows a connection diagram of the third test link. Referring to fig. 1, 2 and 5, in the third test link, since the noise source interface 210 and the interference source interface 220 are both connected to the up converter interface 310, and the up converter interface 310 and the down converter interface 320 are both connected to the terminal transceiver interface 110, interference signals generated by a noise source (e.g., AWGN noise source) and an interference source (e.g., CW interference source) are added to the up converter and the back end (i.e., from the up converter to the first multi-channel transmission terminal), so that the uplink power of the first multi-channel transmission terminal is superimposed on the interference signals and then enters the up converter. Thus, in this way, it is possible to detect noise (interference signal) carried by the first multi-channel transmission terminal (i.e., the transmission/reception integrated multi-channel transmission terminal) itself, and to detect the interference resistance of the entire multi-channel transmission system by adding the interference signal generated by the noise source or the interference source to the up-converter and the back end. By the method, the interference test can be carried out on the multi-channel transmission system consisting of the transceiving multi-channel transmission terminal and the up-down converter.
Further, fig. 6 shows a connection diagram of a fourth test link. Referring to fig. 1, 2 and 6, in the fourth test link, since the noise source interface 210 and the interference source interface 220 are both connected to the up converter interface 310, and the up converter interface 310 is connected to the terminal transmission interface 130, and the down converter interface 320 is connected to the terminal reception interface 120, so that interference signals generated by a noise source (e.g., AWGN noise source) and an interference source (e.g., CW interference source) are added to the up converter and the back end (i.e., from the up converter to the second multi-channel transmission terminal), and the uplink power of the second multi-channel transmission terminal is superimposed on the interference signals and then enters the up converter. Thus, in this way, it is possible to detect noise (interference signal) carried by the second multi-channel transmission terminal (i.e., the multi-channel transmission terminal separated by transmission and reception) itself, and to detect the interference resistance of the entire multi-channel transmission system by adding the interference signal generated by the noise source or the interference source to the up-converter and the back end. By the method, the interference test can be carried out on the multi-channel transmission system consisting of the multi-channel transmission terminal and the up-down converter which are separated by transceiving. And, the switch unit in the path switching module 400 is used to switch the third test link and the fourth test link, so that the interference test can be performed on a multi-channel transmission system composed of multi-channel transmission terminals and up/down converters of different types based on one set of interference test system.
In addition, the uplink power capacity of the multi-channel transmission terminal is 40W; path from the multichannel transmission terminal up to the up-converter: the frequency range is 1980-2010MHz, and the total attenuation is 46 dB; the down converter down-links to the multi-channel transmission terminal path: the frequency range is 2170-2200MHz, and the total attenuation is 55 dB; and interference or noise sources to the multi-channel transmission terminal path: the frequency range is 1980-2200 MHz, and the total attenuation is about 32 dB.
Optionally, the test link includes a fifth test link and a sixth test link, where in the fifth test link, the up-converter interface 310 and the down-converter interface 320 are both connected to the terminal transceiver interface 110; in the sixth test link, the up-converter interface 310 is connected to the terminal sending interface 130, and the down-converter interface 320 is connected to the terminal receiving interface 120; and the path switching component 400 includes a switch unit disposed among the terminal transceiving interface 110, the terminal receiving interface 120, the terminal transmitting interface 130, the up-converter interface 310, and the down-converter interface 320, and is configured to implement switching between the fifth test link and the sixth test link.
In particular, fig. 7 shows a connection diagram of a fifth test link. Referring to fig. 1, 2 and 7, in the fifth test link, the interference signal is no longer added to the channel of the first multi-channel transmission terminal, and the performance test is performed on the first multi-channel transmission terminal (i.e. the transceiving multi-channel transmission terminal) by connecting both the up-converter interface 310 and the down-converter interface 320 to the terminal transceiving interface 110, where the performance test includes: reference sensitivity, output power, switching time template, radio frequency template, power control, and transmit turn-off power, etc.
Further, fig. 8 shows a connection diagram of a sixth test link. Referring to fig. 1, 2 and 8, in the sixth test link, the interference signal is also no longer added to the channel of the second multi-channel transmission terminal, and the performance test is performed on the second multi-channel transmission terminal (i.e. the multi-channel transmission terminal with separate transceiving) by connecting the up-converter interface 310 with the terminal sending interface 130 and connecting the down-converter interface 320 with the terminal receiving interface 120, where the performance test includes: reference sensitivity, output power, switching time template, power control, transmit turn-off power, etc. And, the switch unit in the path switching module 400 is used to switch the fifth test link and the sixth test link, so that the performance test can be performed on different types of multi-channel transmission terminals based on one set of interference test system.
In addition, the uplink power capacity of the multi-channel transmission terminal is 40W; path from the multichannel transmission terminal up to the up-converter: the frequency range is 1980-2010MHz, and the total attenuation is 46 dB; and a down converter descending to a multi-channel transmission terminal path: the frequency range is 2170-2200MHz and the total attenuation is 55 dB.
Optionally, the path switching module 400 further includes a power divider unit 420 disposed between the terminal device interface group 100, the interference device interface group 200, and the up-down converter interface group 300, and configured to distribute an interference signal of the test link.
Specifically, referring to fig. 2, the path switching module 400 further includes a power divider unit 420, which is disposed between the terminal device interface group 100, the interference device interface group 200, and the up-down converter interface group 300, and is configured to distribute an interference signal of the test link. The power divider unit 420 may be, for example, but not limited to, composed of 12 one-to-four power dividers, which form a matrix pattern, and uniformly add interference signals generated by a noise source (e.g., AWGN noise source) and an interference source (e.g., CW interference source) to each channel of the multi-channel transmission terminal. Specifically, the one-to-four power divider can be used for power distribution and power synthesis, and after the same one-to-four power divider is used to form a cross matrix, a signal network with uniform and consistent directions of each channel can be formed, so that interference signals can be uniformly added to each channel of the multi-channel transmission terminal.
Optionally, the path switching module 400 further includes an adjustable phase shifter unit 430 disposed between the terminal device interface set 100, the interference device interface set 200, and the up-down converter interface set 300, and configured to control a phase of the test link.
In particular, referring to fig. 2, the path switching assembly 400 further comprises an adjustable phase shifter element 430 for controlling the phase of the test link. Wherein the tunable phase shifter unit 430 comprises a plurality of tunable phase shifters. In order to achieve phase consistency of multiple channels, it is not enough to rely on rf devices and cables, the devices themselves have parameter deviations, and even if the rf cables are bent, phase shift may be caused, so the adjustable phase shifter unit 430 is also needed to adjust the phase of the test link to achieve phase consistency of multiple channels.
Optionally, the path switching module 400 further includes an adjustable attenuator unit 440 disposed between the terminal device interface group 100, the interference device interface group 200 and the up-down converter interface group 300, and configured to control the amplitude of the test link.
Specifically, referring to fig. 2, the path switching assembly 400 further includes an adjustable attenuator unit 440 for controlling the amplitude of the test link. Wherein the adjustable attenuator unit 440 comprises a plurality of adjustable attenuators. In order to achieve amplitude consistency of multiple channels, it is not enough to rely on only rf devices and cables, and the devices themselves have parameter deviations, so the adjustable attenuator unit 440 is also needed to adjust the amplitude of the test link to achieve amplitude consistency of multiple channels.
Optionally, the path switching module 400 further comprises a high power attenuator unit 450 disposed between the terminal equipment interface set 100 and the up-down converter interface set 300 for attenuating the power of the test link.
In particular, the path switching assembly 400 further includes a high power attenuator unit 450 for attenuating the power of the test link. Since the uplink power of the multi-channel transmission terminal in satellite communication is very large (about 40W), the signal power reaching the down converter is small after atmospheric transmission. Therefore, in order to simulate the attenuation generated during the atmospheric transmission process during the interference test, it is necessary to provide a high-power attenuator unit 450 between the terminal equipment interface group 100 and the up-down converter interface group 300, that is, a high-power attenuator is provided in the transmission link of each channel for attenuating the power of the test link.
Optionally, the path switching module 400 further includes a duplexer unit 460 disposed between the terminal transceiving interface 110, the interfering device interface set 200 and the up-down converter interface set 300, and configured to merge the uplink signal and the downlink signal.
Specifically, referring to fig. 2, the path switching module 400 further includes a duplexer unit 460 disposed between the terminal transceiving interface 110, the interfering device interface set 200, and the up-down converter interface set 300. Wherein the duplexer unit 460 includes a plurality of duplexers. Therefore, the uplink and downlink signals are fused by arranging the duplexer on a link of a receiving and transmitting integrated terminal port.
Further, fig. 2 shows an internal structural schematic of the connector assembly 10. Referring to fig. 2, the switch unit 410 includes a first switch 4101, a second switch 4102, a third switch 4103, a fourth switch 4104, a fifth switch 4105, a sixth switch 4106, a seventh switch 4107, an eighth switch 4108, a ninth switch 4109, a tenth switch 4110, an eleventh switch 4111, and a twelfth switch 4112. Wherein each switch is a radio frequency switch.
The power divider unit 420 includes a first power divider 4201, a second power divider 4202, a third power divider 4203, a fourth power divider 4204, a fifth power divider 4205, a sixth power divider 4206, a seventh power divider 4207, an eighth power divider 4208, a ninth power divider 4209, a tenth power divider 4210, an eleventh power divider 4211, and a twelfth power divider 4212.
The tunable phase shifter unit 430 includes a first tunable phase shifter 4301, a second tunable phase shifter 4302, a third tunable phase shifter 4303, a fourth tunable phase shifter 4304, a fifth tunable phase shifter 4305, a sixth tunable phase shifter 4306, a seventh tunable phase shifter 4307, and an eighth tunable phase shifter 4308.
The adjustable attenuator unit 440 comprises a first adjustable attenuator 4401, a second adjustable attenuator 4402, a third adjustable attenuator 4403, a fourth adjustable attenuator 4404, a fifth adjustable attenuator 4405, a sixth adjustable attenuator 4406, a seventh adjustable attenuator 4407, an eighth adjustable attenuator 4408, a ninth adjustable attenuator 4409 and a tenth adjustable attenuator 4410.
The high power attenuator unit 450 includes a first high power attenuator 4501, a second high power attenuator 4502, a third high power attenuator 4503, a fourth high power attenuator 4504, a fifth high power attenuator 4505, a sixth high power attenuator 4506, a seventh high power attenuator 4507, and an eighth high power attenuator 4508.
The duplexer unit 460 includes a first duplexer 4601, a second duplexer 4602, a third duplexer 4603, and a fourth duplexer 4604. Wherein, each duplexer is designed to be broadband, and can cover the 2170-2200MHz and 1980-2010MHz frequency bands.
The load unit 470 includes a first load 4701 and a second load 4702.
Optionally, referring to fig. 2, in the first test link, after passing through the eleventh switch 4111, the tenth adjustable attenuator 4410, the twelfth switch 4112 and the second power divider 4202, the interference source interface 220 is connected to four interfaces of the terminal transceiving interface 110 through the third to sixth power dividers 4203 to 4206, the corresponding first to fourth adjustable phase shifters 4301 to 4304, the corresponding first to fourth adjustable attenuators 4401 to 4404, the corresponding first to fourth switches 4101 to 4104, and the corresponding first to fourth duplexers 4601 to 4604, respectively; the noise source interface 210 passes through the ninth switch 4109, the nineteenth adjustable attenuator 4409, the tenth switch 4110 and the first power divider 4201, and then passes through the third to sixth power dividers 4203 to 4206, the corresponding first to fourth adjustable phase shifters 4301 to 4304, the corresponding first to fourth adjustable attenuators 4401 to 4404, the corresponding first to fourth switches 4101 to 4104, and the corresponding first to fourth duplexers 4601 to 4604, respectively, to connect with four interfaces of the terminal transceiving interface 110; the down-converter interface 320 is connected with four interfaces of the terminal transceiving interface 110 through fifth to eighth large power attenuators 4505 to 4508, corresponding third to sixth power dividers 4203 to 4206, corresponding first to fourth adjustable phase shifters 4301 to 4304, corresponding first to fourth adjustable attenuators 4401 to 4404, corresponding first to fourth switches 4101 to 4104, and corresponding first to fourth duplexers 4601 to 4604, respectively; the up-converter interface 310 is connected to four interfaces of the terminal transceiver interface 110 through the fifth to eighth tunable phase shifters 4305 to 4308, the corresponding fifth to eighth tunable attenuators 4405 to 4408, the corresponding ninth to twelfth power splitters 4209 to 4212, the corresponding first to fourth high-power attenuators 4501 to 4504, and the corresponding fifth to eighth switches 4105 to 4108, respectively.
Further, in the second test link, after passing through the eleventh switch 4111, the tenth adjustable attenuator 4410, the twelfth switch 4112 and the second power divider 4202, the interference source interface 220 is connected to four interfaces of the terminal receiving interface 1120 through the third to sixth power dividers 4203 to 4206, the corresponding first to fourth adjustable phase shifters 4301 to 4304, the corresponding first to fourth adjustable attenuators 4401 to 4404, and the corresponding first to fourth switches 4101 to 4104, respectively; the noise source interface 210 passes through the ninth switch 4109, the nineteenth adjustable attenuator 4409, the tenth switch 4110, and the first power divider 4201, and then passes through the third to sixth power dividers 4203 to 4206, the corresponding first to fourth adjustable phase shifters 4301 to 4304, the corresponding first to fourth adjustable attenuators 4401 to 4404, and the corresponding first to fourth switches 4101 to 4104, respectively, to be connected to four interfaces of the terminal receiving interface 1120; the down-converter interface 320 is connected with four interfaces of the terminal receiving interface 120 through the fifth to eighth large power attenuators 4505 to 4508, the corresponding third to sixth power dividers 4203 to 4206, the corresponding first to fourth adjustable phase shifters 4301 to 4304, the corresponding first to fourth adjustable attenuators 4401 to 4404, the corresponding first to fourth switches 4101 to 4104, and the corresponding first to fourth duplexers 4601 to 4604, respectively; the up-converter interface 310 is connected to four interfaces of the terminal transmission interface 130 through the fifth to eighth tunable phase shifters 4305 to 4308, the corresponding fifth to eighth tunable attenuators 4405 to 4408, the corresponding ninth to twelfth power splitters 4209 to 4212, the corresponding first to fourth high-power attenuators 4501 to 4504, and the corresponding fifth to eighth switches 4105 to 4108, respectively.
Further, in the third test link, after passing through the eleventh switch 4111, the tenth adjustable attenuator 4410, the twelfth switch 4112 and the seventh power divider 4207, the interference source interface 220 is connected to each interface of the up-converter interface 310 through the ninth to twelfth power dividers 4209 to 4212, the corresponding fifth to eighth adjustable attenuators 4405 to 4408, and the corresponding fifth to eighth adjustable phase shifters 4305 to 4308, respectively; the noise source interface 210 passes through the ninth switch 4109, the nineteenth adjustable attenuator 4409, the tenth switch 4110 and the seventh eighth power divider 4208, and then passes through the ninth to twelfth power dividers 4209 to 4212, the corresponding fifth to eighth adjustable attenuators 4405 to 4408, the corresponding fifth to eighth adjustable phase shifters 4305 to 4308 to be connected to each interface of the up-converter interface 310; the down-converter interface 320 is connected with four interfaces of the terminal transceiving interface 110 through fifth to eighth large power attenuators 4505 to 4508, corresponding third to sixth power dividers 4203 to 4206, corresponding first to fourth adjustable phase shifters 4301 to 4304, corresponding first to fourth adjustable attenuators 4401 to 4404, corresponding first to fourth switches 4101 to 4104, and corresponding first to fourth duplexers 4601 to 4604, respectively; the up-converter interface 310 is connected to four interfaces of the terminal transceiver interface 110 through the fifth to eighth tunable phase shifters 4305 to 4308, the corresponding fifth to eighth tunable attenuators 4405 to 4408, the corresponding ninth to twelfth power splitters 4209 to 4212, the corresponding first to fourth high-power attenuators 4501 to 4504, and the corresponding fifth to eighth switches 4105 to 4108, respectively.
Further, in the fourth test link, after passing through the eleventh switch 4111, the tenth adjustable attenuator 4410, the twelfth switch 4112 and the seventh power divider 4207, the interference source interface 220 is connected to each interface of the up-converter interface 310 through the ninth to twelfth power dividers 4209 to 4212, the corresponding fifth to eighth adjustable attenuators 4405 to 4408, and the corresponding fifth to eighth adjustable phase shifters 4305 to 4308, respectively; the noise source interface 210 passes through the ninth switch 4109, the nineteenth adjustable attenuator 4409, the tenth switch 4110 and the seventh eighth power divider 4208, and then passes through the ninth to twelfth power dividers 4209 to 4212, the corresponding fifth to eighth adjustable attenuators 4405 to 4408, the corresponding fifth to eighth adjustable phase shifters 4305 to 4308 to be connected to each interface of the up-converter interface 310; the down-converter interface 320 is connected with four interfaces of the terminal receiving interface 120 through the fifth to eighth large power attenuators 4505 to 4508, the corresponding third to sixth power dividers 4203 to 4206, the corresponding first to fourth adjustable phase shifters 4301 to 4304, the corresponding first to fourth adjustable attenuators 4401 to 4404, the corresponding first to fourth switches 4101 to 4104, and the corresponding first to fourth duplexers 4601 to 4604, respectively; the up-converter interface 310 is connected to four interfaces of the terminal transmission interface 130 through the fifth to eighth tunable phase shifters 4305 to 4308, the corresponding fifth to eighth tunable attenuators 4405 to 4408, the corresponding ninth to twelfth power splitters 4209 to 4212, the corresponding first to fourth high-power attenuators 4501 to 4504, and the corresponding fifth to eighth switches 4105 to 4108, respectively.
Further, in the fifth test link, the down converter interface 320 is connected to four interfaces of the terminal transceiving interface 110 through fifth to eighth large power attenuators 4505 to 4508, corresponding third to sixth power dividers 4203 to 4206, corresponding first to fourth adjustable phase shifters 4301 to 4304, corresponding first to fourth adjustable attenuators 4401 to 4404, corresponding first to fourth switches 4101 to 4104, and corresponding first to fourth duplexers 4601 to 4604, respectively; the up-converter interface 310 is connected to four interfaces of the terminal transceiver interface 110 through the fifth to eighth tunable phase shifters 4305 to 4308, the corresponding fifth to eighth tunable attenuators 4405 to 4408, the corresponding ninth to twelfth power splitters 4209 to 4212, the corresponding first to fourth high-power attenuators 4501 to 4504, and the corresponding fifth to eighth switches 4105 to 4108, respectively.
Further, in the sixth test link, the down converter interface 320 is connected to four interfaces of the terminal receiving interface 120 through the fifth to eighth large power attenuators 4505 to 4508, the corresponding third to sixth power dividers 4203 to 4206, the corresponding first to fourth adjustable phase shifters 4301 to 4304, the corresponding first to fourth adjustable attenuators 4401 to 4404, the corresponding first to fourth switches 4101 to 4104, and the corresponding first to fourth duplexers 4601 to 4604, respectively; the up-converter interface 310 is connected to four interfaces of the terminal transmission interface 130 through the fifth to eighth tunable phase shifters 4305 to 4308, the corresponding fifth to eighth tunable attenuators 4405 to 4408, the corresponding ninth to twelfth power splitters 4209 to 4212, the corresponding first to fourth high-power attenuators 4501 to 4504, and the corresponding fifth to eighth switches 4105 to 4108, respectively.
In addition, in this embodiment, the provided multi-channel interference test system has an uplink channel with a symmetrical structure from the multi-channel transmission terminal to be tested to the up-converter, and a downlink channel (from the down-converter to the multi-channel transmission terminal to be tested). The uplink channel comprises 4 channels, and the radio frequency device and the radio frequency cable of each channel are consistent as much as possible; the downstream channel, which contains 4 channels, the rf devices, the rf cables, of each channel are all tried to be identical.
It should be noted that the ninth switch and the eleventh switch are used to disconnect the path and match the path to the load 4701 and the load 4702 when the AWGN noise source interface 210 and the CW interference source interface 220 are not used. And the ninth adjustable attenuator and the tenth adjustable attenuator can control the amplitude of interference signals generated by an AWGN noise source and a CW interference source, and the tenth switch and the twelfth switch adopt switches with terminals for switching the interference signals and ensuring that the other unused path is in a matching state. Therefore, through the structure, the phase deviation is within 3 degrees and the amplitude deviation is within 1dB among multiple channels with amplitude and phase consistency.
Thus, according to the connector assembly 10 provided in the embodiment of the present application, the connector assembly 10 can be connected to a multi-channel transmission terminal to be tested through the terminal device interface set 100, the connector assembly 10 can be connected to an interfering device such as, but not limited to, a noise source and an interference source through the interfering device interface set 200, and the connector assembly 10 can be connected to an up-down converter through the up-down converter interface set 300. And, by setting the switching states of the plurality of switching units in the path switching component 400, the test links between the terminal device interface group 100, the interference device interface group 200, and the up-down converter interface group 300 can be switched. Therefore, the interference test can be carried out on the multi-channel transmission terminal scientifically and effectively, and meanwhile, the interference test can be carried out on the whole multi-channel transmission system and the performance test can be carried out on the multi-channel transmission terminal.
The relative arrangement of the components and steps, the numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present disclosure unless specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.
Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
In the description of the present disclosure, it is to be understood that the orientation or positional relationship indicated by the directional terms such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal" and "top, bottom", etc., are generally based on the orientation or positional relationship shown in the drawings, and are presented only for the convenience of describing and simplifying the disclosure, and in the absence of a contrary indication, these directional terms are not intended to indicate and imply that the device or element being referred to must have a particular orientation or be constructed and operated in a particular orientation, and therefore, should not be taken as limiting the scope of the disclosure; the terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself.
The above description is only for the preferred embodiment of the present application, but the scope of the present application is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present application should be covered within the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.
Claims (10)
1. A connector assembly (10) for performing multi-channel interference testing for interference testing of a multi-channel transmission terminal, comprising: a terminal device interface set (100), an interfering device interface set (200), an up-down converter interface set (300) and a path switching component (400) for connecting the terminal device interface set (100), the interfering device interface set (200) and the up-down converter interface set (300), wherein
The terminal equipment interface group (100) comprises a plurality of interfaces for connecting with the multi-channel transmission terminal;
the interfering device interface group (200) comprises a plurality of interfaces for connecting with interfering devices;
the set (300) of up-down converter interfaces comprises a plurality of interfaces for connecting with up-down converters; and
the path switching component (400) is arranged between the terminal device interface group (100), the interference device interface group (200) and the up-down converter interface group (300), and comprises a plurality of lines and a plurality of switch units (410) connected with the lines, wherein by setting the switch states of the switch units, the test links among the terminal device interface group (100), the interference device interface group (200) and the up-down converter interface group (300) can be switched.
2. The connector assembly (10) of claim 1,
the terminal equipment interface group (100) comprises a terminal transceiving interface (110) connected with a transceiving interface of a first multi-channel transmission terminal, a terminal receiving interface (120) connected with a receiving interface of a second multi-channel transmission terminal and a terminal transmitting interface (130) connected with a transmitting interface of the second multi-channel transmission terminal;
the interfering device interface group (200) comprises a noise source interface (210) for connecting with a noise source and an interfering source interface (220) for connecting with an interfering source; and
the set of up-down converter interfaces (300) comprises an up-converter interface (310) for connection with an up-converter and a down-converter interface (320) for connection with a down-converter.
3. The connector assembly (10) of claim 2, wherein the test link comprises a first test link and a second test link, wherein
In the first test link, the noise source interface (210) and the interference source interface (220) are both connected to the terminal transceiver interface (110), and the up-converter interface (310) and the down-converter interface (320) are both connected to the terminal transceiver interface (110);
in the second test link, the noise source interface (210) and the interference source interface (220) are both connected to the terminal receiving interface (120), the up-converter interface (310) is connected to the terminal transmitting interface (130), and the down-converter interface (320) is connected to the terminal receiving interface (120); and is
The path switching component (400) comprises a switch unit arranged between the noise source interface (210), the interference source interface (220), the terminal transceiving interface (110), the terminal receiving interface (120), the terminal transmitting interface (130), the up-converter interface (310) and the down-converter interface (320), and is used for realizing switching between the first test link and the second test link.
4. The connector assembly (10) of claim 2, wherein the test link comprises a third test link and a fourth test link, wherein
In the third test link, the noise source interface (210) and the interference source interface (220) are both connected to the up-converter interface (310), and the up-converter interface (310) and the down-converter interface (320) are both connected to the terminal transceiver interface (110);
in the fourth test link, the noise source interface (210) and the interference source interface (220) are both connected to the up-converter interface (310), the up-converter interface (310) is connected to the terminal transmission interface (130), and the down-converter interface (320) is connected to the terminal reception interface (120); and is
The path switching component (400) comprises a switch unit arranged between the noise source interface (210), the interference source interface (220), the terminal transceiving interface (110), the terminal receiving interface (120), the terminal transmitting interface (130), the up-converter interface (310) and the down-converter interface (320), and is used for realizing switching between the third test link and the fourth test link.
5. The connector assembly (10) of claim 2, wherein the test link comprises a fifth test link and a sixth test link, wherein
In the fifth test link, the up-converter interface (310) and the down-converter interface (320) are both connected to the terminal transceiver interface (110);
in the sixth test link, the up-converter interface (310) is connected to the terminal transmit interface (130), and the down-converter interface (320) is connected to the terminal receive interface (120); and is
The path switching component (400) includes a switch unit disposed between the terminal transceiver interface (110), the terminal receiver interface (120), the terminal transmitter interface (130), the up-converter interface (310), and the down-converter interface (320), and is configured to implement switching between the fifth test link and the sixth test link.
6. The connector assembly (10) of claim 1, wherein the path switching assembly (400) further comprises a power divider unit (420) disposed between the terminal device interface set (100), the interfering device interface set (200), and the up-down converter interface set (300) for distributing the interfering signal of the test link.
7. The connector assembly (10) of claim 1, wherein the path switching assembly (400) further comprises an adjustable phase shifter unit (430) disposed between the terminal equipment interface set (100), the interfering equipment interface set (200), and the up-down converter interface set (300) for controlling the phase of the test link.
8. The connector assembly (10) of claim 1, wherein the path switching assembly (400) further comprises an adjustable attenuator unit (440) disposed between the set of terminal equipment interfaces (100), the set of interfering equipment interfaces (200), and the set of up-down converter interfaces (300) for controlling the amplitude of the test link.
9. The connector assembly (10) of claim 1, wherein the path switching assembly (400) further comprises a high power attenuator unit (450) disposed between the terminal equipment interface set (100) and the up-down converter interface set (300) for attenuating power of the test link.
10. The connector assembly (10) of claim 2, wherein the path switching assembly (400) further comprises a diplexer unit (460) disposed between the terminal transceiver interface (110), the interfering device interface set (200), and the up-down converter interface set (300) for merging the upstream signal and the downstream signal.
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| CN202020654050.2U CN211656153U (en) | 2020-04-26 | 2020-04-26 | Connector assembly for performing multi-channel interference testing |
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| CN202020654050.2U CN211656153U (en) | 2020-04-26 | 2020-04-26 | Connector assembly for performing multi-channel interference testing |
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