Two-way transmission radio frequency matrix and operation method

Abstract

The invention discloses a two-way transmission radio frequency matrix and an operation method. The two-way transmission radio frequency matrix comprises an amplifier unit I, an amplifier unit II, a power division unit and a switch unit, the first amplifier unit and the second amplifier unit are respectively arranged at a signal input end and a signal output end, and the first amplifier unit and the second amplifier unit are respectively and correspondingly connected with the power division unit and the switch unit; the power division unit and the switch unit are in cross connection. According to the scheme, by selecting the amplifier a and the amplifier b, the switching function of the fan-out matrix and the fan-in matrix is realized under the condition that equipment is not replaced.

Description

Technical Field

[0001] The present invention relates to the technical field of satellite ground station radio frequency signal exchange, and in particular to a bidirectional transmission radio frequency matrix and an operation method thereof. Background Art

[0002] In satellite communications, the RF matrix routes RF signals from different antennas to appropriate receiving devices or distributes them from transmitting devices to different antennas. The use of the matrix can improve the efficiency, reliability and flexibility of the communication network and lay the foundation for the development of future communication technology. At present, the RF matrix in satellite communications is divided into fan-in matrix for reception and fan-out matrix for signal transmission. There are significant differences in the internal structure of these two matrices. The fan-in matrix and the fan-out matrix can only transmit in one direction, and the conversion from fan-in to fan-out requires the replacement of equipment to achieve it.

[0003] At present, the industry implements fan-in matrix by using amplifiers, switch branch modules, combining modules and amplifier cascades. After the input signal channel is amplified, it enters the switch branch module for selective branching. The branch output signals are connected to the input end of the combining module in turn. The combining module combines the signals and then amplifies the output.

[0004] The industry implements fan-out matrix by cascading amplifiers, power division modules, switch modules and amplifiers. After the input signal channel is amplified, it enters the power division module for branching. The branched output signals are connected to the input and input ends of the switch selection module in turn. The switch module selects the signal and then amplifies the output. The existing fan-in matrix and fan-out matrix can only transmit in one direction. The conversion from fan-in to fan-out requires changing the equipment. Summary of the invention

[0005] In response to the above technical problems, the present invention provides a bidirectional transmission RF matrix and an operating method. Based on the urgent needs of industry technological breakthroughs and market product technological innovation, the present invention aims to develop a bidirectional transmission matrix. Through software settings, a single device can complete the mutual conversion of signal fan-in to fan-out, thereby improving channel resource management efficiency and equipment operation efficiency.

[0006] The present invention is implemented by adopting the following technical scheme: a bidirectional transmission radio frequency matrix, comprising an amplifier unit 1, an amplifier unit 2, a power division unit and a switch unit; the amplifier unit 1 and the amplifier unit 2 are respectively arranged at the signal input end and the output end, and the amplifier unit 1 and the amplifier unit 2 are respectively connected to the power division unit and the switch unit; the power division unit and the switch unit are cross-connected.

[0007] Specifically, the power division unit is provided with a plurality of 1-to-M power division modules, and the switch unit is correspondingly provided with a plurality of N-to-1 switch modules; each 1-to-M power division module is connected to each N-to-1 switch module.

[0008] Specifically, the amplifier unit 1 and the amplifier unit 2 are both provided with a plurality of amplifying modules, and each amplifying module includes two selection switches and two amplifiers arranged between the two selection switches.

[0009] Specifically, in each amplifying module of the amplifier unit 1, two selection switches respectively transmit signals with the input signal and a 1-to-M power splitter module of the power splitter unit.

[0010] Specifically, in each amplifying module of the amplifier unit 2, two selection switches respectively transmit signals with the output signal and an N-to-1 switch module of the switch unit.

[0011] A bidirectional transmission radio frequency matrix operation method is implemented based on a bidirectional transmission radio frequency matrix, comprising: Amplifier unit 1 and amplifier unit 2 amplify the signal to compensate for the insertion loss of the link, and amplifier a and amplifier b are selected by setting a selection switch to complete the conversion of the fan-out matrix and the fan-in matrix; When the amplifier unit selects amplifier a, the device is a fan-out matrix, the power division unit branches the input signal, the switch unit selects and outputs the signal, and the branch outputs of the power division unit are respectively connected to the input end of the switch unit, and the switching function of the fan-out matrix is ​​completed through the branching of the power division unit and the selection output of the switch unit; When the amplifier unit selects amplifier b, the device is a fan-in matrix, the switch unit selects the branch for the signal, and the power division unit combines the signal for output. The switching function of the fan-in matrix is ​​completed by the branch selection of the switch unit and the combined output of the power division unit.

[0012] Specifically, when the device is a fan-out matrix, the signal flow direction is as follows: the device signal flows from left to right, the amplifier unit selects amplifier a through the selection switch, the input signal is amplified by amplifier a and then sent to the power division module for branching, the branch output is connected to the switch module for selection, the selected output signal is output after amplification, and the device completes the N×M fan-out switching function.

[0013] Specifically, when the device is a fan-in matrix, the signal flow direction is as follows: the standby signal flows from right to left, the amplifier unit selects amplifier b through the selection switch, the input signal is amplified by amplifier b and then sent to the switch module for branch selection, the branch output is connected to the input of the power division module for combining, and the combined output signal is output after amplification, and the device completes the M×N fan-in switching function.

[0014] The beneficial effects of the present invention are as follows: the present invention studies a bidirectional transmission radio frequency exchange matrix and develops a radio frequency exchange matrix with bidirectional transmission. A single device can complete the mutual conversion of signal fan-in to fan-out, solves the problem of radio frequency matrix uniformity in satellite communication stations, and effectively improves the efficiency of channel resource management and equipment operation efficiency. By selecting amplifier a and amplifier b, the switching function of the fan-out matrix and the fan-in matrix can be realized without changing the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0016] Figure 1 It is a schematic diagram of the transmission radio frequency matrix composition in an embodiment of the present invention; Figure 2 This is a fan-out matrix radio frequency signal flow diagram in an embodiment of the present invention; Figure 3 This is a fan-in matrix RF signal flow diagram in an embodiment of the present invention. DETAILED DESCRIPTION

[0017] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0018] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0019] The following is combined with Figures 1 to 3 , some embodiments of the present invention are described in detail. In the absence of conflict, the following embodiments and features in the embodiments can be combined with each other.

[0020] The present invention proposes a bidirectional transmission radio frequency matrix and an operating method. In a preferred embodiment, a bidirectional transmission radio frequency matrix includes an amplifier unit 1, an amplifier unit 2, a power division unit and a switch unit; the amplifier unit 1 and the amplifier unit 2 are respectively arranged at the signal input end and the output end, and the amplifier unit 1 and the amplifier unit 2 are respectively connected to the power division unit and the switch unit; the power division unit and the switch unit are cross-connected.

[0021] In this embodiment, the power division unit is provided with a plurality of 1-to-M power division modules, and the switch unit is correspondingly provided with a plurality of N-to-1 switch modules; each 1-to-M power division module is connected to each N-to-1 switch module.

[0022] In this embodiment, amplifier unit 1 and amplifier unit 2 are both provided with a plurality of amplifying modules, and each amplifying module includes two selection switches and two amplifiers arranged between the two selection switches. In each amplifying module of amplifier unit 1, the two selection switches respectively transmit signals with the input signal and a 1-to-M power splitter module of the power splitter unit. In each amplifying module of amplifier unit 2, the two selection switches respectively transmit signals with the output signal and an N-to-1 switch module of the switch unit.

[0023] In another embodiment, a bidirectional transmission radio frequency matrix such as Figure 1 As shown, it includes amplifier unit 1, amplifier unit 2, power division unit and switch unit. The connection relationship between the units is: two groups of amplifier units are at the input and output ends, and the amplifier units are connected to the power division units and the switch units one by one. The power division units and the switch units are cross-connected.

[0024] Amplifier unit 1 and amplifier unit 2 complete signal amplification to compensate for the insertion loss of the link. Amplifier a and amplifier b can be selected by setting a 2:1 switch in the amplifier unit, thereby completing the conversion of the fan-out matrix and the fan-in matrix.

[0025] When the amplifier unit selects amplifier a, the device is a fan-out matrix. The power division unit completes the branching of the input signal, the switch unit completes the selective output of the signal, and the branch output of the power division unit is connected to the input end of the switch unit. The switching function of the fan-out matrix is ​​completed through the branching of the power division unit and the selective output of the switch unit. Figure 2 .

[0026] When the amplifier unit selects amplifier b, the device is a fan-in matrix, the switch unit completes the signal selection and branching, and the power division unit completes the signal combination output. The switching function of the fan-in matrix is ​​completed through the switch unit's selection and branching and the power division unit's combination output. Figure 3 .

[0027] By selecting amplifier a and amplifier b, the switching function between the fan-out matrix and the fan-in matrix can be realized without replacing the equipment.

[0028] When the device is set to a fan-out matrix, the device signal flows from left to right. The amplifier unit selects amplifier a through a 2:1 switch. The input signal is amplified by amplifier a and then sent to the power division module for branching. The branch output is connected to the switch module for selection. The selected output signal is amplified and then output. The device completes the N×M fan-out switching function.

[0029] When the device is set to a fan-in matrix, the device signal flows from right to left. The amplifier unit selects amplifier b through a 2:1 switch. The input signal is amplified by amplifier b and then sent to the switch module for branch selection. The branch output is connected to the input of the power division module for combining. The combined output signal is amplified and then output. The device completes the M×N fan-in switching function.

[0030] This embodiment also proposes a bidirectional transmission radio frequency matrix operation method, which is implemented based on a bidirectional transmission radio frequency matrix and includes: Amplifier unit 1 and amplifier unit 2 amplify the signal to compensate for the insertion loss of the link, and amplifier a and amplifier b are selected by setting a selection switch to complete the conversion of the fan-out matrix and the fan-in matrix; When the amplifier unit selects amplifier a, the device is a fan-out matrix, the power division unit branches the input signal, the switch unit selects and outputs the signal, and the branch outputs of the power division unit are respectively connected to the input end of the switch unit, and the switching function of the fan-out matrix is ​​completed through the branching of the power division unit and the selection output of the switch unit; When the amplifier unit selects amplifier b, the device is a fan-in matrix, the switch unit selects the branch for the signal, and the power division unit combines the signal for output. The switching function of the fan-in matrix is ​​completed by the branch selection of the switch unit and the combined output of the power division unit.

[0031] In this embodiment, when the device is a fan-out matrix, the signal flow direction is specifically as follows: the device signal flows from left to right, the amplifier unit selects amplifier a through the selection switch, the input signal is amplified by amplifier a and then sent to the power division module for branching, the branch output is connected to the switch module for selection, the selected output signal is output after amplification, and the device completes the N×M fan-out switching function.

[0032] When the device is a fan-in matrix, the signal flow direction is as follows: the backup signal flows from right to left, the amplifier unit selects amplifier b through the selection switch, the input signal is amplified by amplifier b and then sent to the switch module for branching selection, the branch output is connected to the input of the power division module for combining, and the combined output signal is output after amplification, and the device completes the M×N fan-in switching function.

[0033] For the aforementioned embodiments, for the sake of simplicity, they are all described as a series of action combinations, but those skilled in the art should be aware that the present application is not limited by the order of the actions described, because according to the present application, some steps can be performed in other orders or simultaneously. Secondly, those skilled in the art should also be aware that the embodiments described in the specification are preferred embodiments, and the actions involved are not necessarily required by the present application.

[0034] The above embodiments describe the basic principles and main features of the present invention and the advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the changes and modifications made by those skilled in the art shall be within the scope of protection of the appended claims of the present invention without departing from the spirit and scope of the present invention.

Claims

1. A bidirectional transmission radio frequency matrix, characterized in that: It includes an amplifier unit 1, an amplifier unit 2, a power division unit and a switch unit; the amplifier unit 1 and the amplifier unit 2 are respectively arranged at the signal input end and the output end, and the amplifier unit 1 and the amplifier unit 2 are respectively connected to the power division unit and the switch unit; the power division unit and the switch unit are cross-connected.

2. A bidirectional transmission radio frequency matrix as claimed in claim 1, characterized in that: The power division unit is provided with a plurality of 1-to-M power division modules, and the switch unit is correspondingly provided with a plurality of N-to-1 switch modules; each 1-to-M power division module is connected to each N-to-1 switch module.

3. A bidirectional transmission radio frequency matrix as claimed in claim 2, characterized in that: The amplifier unit 1 and the amplifier unit 2 are both provided with a plurality of amplifying modules, and each amplifying module includes two selection switches and two amplifiers arranged between the two selection switches.

4. A bidirectional transmission radio frequency matrix as claimed in claim 3, characterized in that: In each amplifying module of the amplifier unit 1, two selection switches respectively transmit signals with the input signal and a 1-to-M power splitter module of the power splitter unit.

5. A bidirectional transmission radio frequency matrix as claimed in claim 4, characterized in that: In each amplifying module of the amplifier unit 2, two selection switches respectively transmit signals with the output signal and an N-to-1 switch module of the switch unit.

6. A method for operating a bidirectional transmission radio frequency matrix, implemented based on a bidirectional transmission radio frequency matrix according to any one of claims 1 to 5, characterized in that: include: Amplifier unit 1 and amplifier unit 2 amplify the signal to compensate for the insertion loss of the link, and amplifier a and amplifier b are selected by setting a selection switch to complete the conversion of the fan-out matrix and the fan-in matrix; When the amplifier unit selects amplifier a, the device is a fan-out matrix, the power division unit branches the input signal, the switch unit selects and outputs the signal, and the branch outputs of the power division unit are respectively connected to the input end of the switch unit, and the switching function of the fan-out matrix is ​​completed through the branching of the power division unit and the selection output of the switch unit; When the amplifier unit selects amplifier b, the device is a fan-in matrix, the switch unit selects the branch for the signal, and the power division unit combines the signal for output. The switching function of the fan-in matrix is ​​completed by the branch selection of the switch unit and the combined output of the power division unit.

7. A bidirectional transmission radio frequency matrix operation method as claimed in claim 6, characterized in that: When the device is a fan-out matrix, the signal flow direction is specifically as follows: the device signal flows from left to right, the amplifier unit selects amplifier a through the selection switch, the input signal is amplified by amplifier a and then sent to the power division module for branching, the branch output is connected to the switch module for selection, the selected output signal is output after amplification, and the device completes the N×M fan-out switching function.

8. A bidirectional transmission radio frequency matrix operation method as claimed in claim 7, characterized in that: When the device is a fan-in matrix, the signal flow direction is specifically as follows: the standby signal flows from right to left, the amplifier unit selects amplifier b through the selection switch, the input signal is amplified by amplifier b and then sent to the switch module for selection and branching, the branch output is connected to the input of the power division module for combining, and the combined output signal is output after amplification, and the device completes the M×N fan-in switching function.

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