Ultra-wideband multi-channel transceiver module

Abstract

The utility model relates to the field of transmitting and receiving circuits, and discloses an ultra-wideband multi-channel transmitting and receiving module. According to the invention, through ingenious combination of power division, synthesis, switch switching and power-off control, four-path receiving and four-path transmitting work can be integrated under the condition of extremely small size. And the antenna port adopts a high-power GaN switch to carry out transceiving switching. Meanwhile, the receiving branch and the transmitting branch are additionally provided with turn-off switches, receiving can be turned off during transmitting, transmitting can be turned off during receiving, and transmitting and receiving isolation is high. The frequency band covered by the product is very wide, and the circuit adopts an ultra-wide-band broadband equalization optimization circuit, so that the full-band 2-18GHz receiving gain fluctuation is very small. The transmitting circuit and the receiving circuit are respectively provided with a switch matrix, input and output ports can be freely switched and correspond in a 2 * 4 mode, and using and multiplexing are convenient. The two transmitting input ports can be switched to four antenna port outputs at will. And the four antenna input ports can be randomly switched to two receiving ports for output.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of transceiver circuit, and particularly relates to an ultra-wideband multi-path transceiver module. BACKGROUND

[0002] With the development of radar, electronic reconnaissance and jamming technology, multi-target rapid tracking and reconnaissance need to be carried out, and frequency jamming in a very large range needs to be implemented. The traditional single transceiver system and the relatively narrow transceiver system are difficult to meet the needs of the development of modern information technology. In order to meet the above requirements, it is often necessary to integrate multi-path receiving and multi-path transmitting circuits, and the working frequency covered is very wide.

[0003] However, the integration of multi-path receiving and transmitting can easily cause mutual interference between receiving and transmitting, so that the transceiver system cannot work normally. At the same time, the integration of multiple transceiver modules can bring the disadvantages of complex circuit, high cost, large size and high power consumption.

[0004] Based on the above urgent problems and contradictions, an ultra-wideband multi-path transceiver module is provided. CONTENT OF THE INVENTION

[0005] The purpose of the application is to solve the above problems, and provide an ultra-wideband multi-path transceiver module.

[0006] The technical scheme adopted by the application is as follows: an ultra-wideband multi-path transceiver module, comprising: a four-channel receiving circuit and a four-channel transmitting circuit, the four-channel receiving circuit and the four-channel transmitting circuit are connected through a 2x4 switch matrix;

[0007] The four-channel receiving circuit receives the 2-18GHz signal from the antenna through the transceiver switch, performs amplitude limiting and low-noise amplification, and then is switched on, and then is amplified and filtered through the 2x4 switch matrix and is output in two ways. All devices of the receiving circuit including switches, low-noise amplifiers, amplitude limiters and the like all adopt wideband devices;

[0008] The four-channel transmitting circuit amplifies and filters the input two-way 2-18GHz radio frequency signal, outputs four ways through the 2x4 switch matrix. Each way is independent, respectively performs gain and power amplification, pushes to the required power, and finally is output to the corresponding antenna port (antenna 1-antenna 4) through the transceiver switch.

[0009] In a preferred embodiment, the four-channel receiving circuit can output the signals of the four antenna ports to two receiving ports through the 2x4 switch matrix, realize the port mapping relationship of 4 to 2, realize port multiplexing and multi-functional switching.

[0010] In a preferred embodiment, the transceiving switch of the four-channel receiving circuit adopts a high-power GaN switch, which has the characteristics of small insertion loss and high anti-burning power. The limiter prevents the high-power signal from entering in reverse through the switch during transmission, thereby preventing the receiving circuit from being burned out and protecting the receiving circuit.

[0011] In a preferred embodiment, the receiving final stage circuit of the four-channel receiving circuit adopts an ultra-wideband equalizer to achieve gain equalization of the entire frequency band, so that the gain fluctuation of the entire band is controlled within a relatively small range, i.e., within about 4 dB.

[0012] In a preferred embodiment, each receiving channel of the four-channel receiving circuit is provided with a receiving shutdown switch to improve the isolation of each receiving channel, and each channel can work independently without affecting each other.

[0013] In a preferred embodiment, the final stage power amplifier of the four-channel transmitting circuit adopts a high-power ultra-wideband GaN power amplifier, which has the advantages of high efficiency and wide operating frequency band.

[0014] In a preferred embodiment, each transmitting channel of the four-channel transmitting circuit is provided with a transmitting shutdown switch to improve the isolation of the transmitting and receiving channels, so that the receiving and transmitting are not performed at the same time. In addition, the power amplifier is provided with a power modulation circuit to control the power supply of the power amplifier, which has a very fast response time and can quickly turn on and off the power amplifier. Through this design, each power amplifier can work in time-sharing mode, saving power consumption, and each power amplifier does not interfere with each other, preventing excessive heat concentration.

[0015] In a preferred embodiment, the four-channel transmitting circuit can output two input transmitting signals to four different antenna ports through a 2x4 switch matrix, realizing a 2-to-4 port mapping relationship and achieving port multiplexing and multi-function switching.

[0016] In summary, due to the adoption of the above technical solutions, the application has the following advantages:

[0017] 1. In the application, the power division, synthesis, switch switching, and power-off control combination are combined to integrate four-way receiving and four-way transmitting in a very small volume.

[0018] 2. In the application, the antenna port uses a high-power GaN switch for transceiving switching. In addition, the receiving and transmitting branches are provided with shutdown switches, which can be turned off during transmission and reception, respectively, to achieve high isolation between receiving and transmitting.

[0019] 3. In the application, the product covers a very wide frequency band, and the circuit adopts an ultra-wideband equalization optimization circuit to make the receiving gain fluctuation of the entire frequency band 2-18 GHz very small, i.e., within about 4 dB.

[0020] 4. In this application, each transmitting circuit, power amplifier adopts power modulation design, with power-off time-sharing work function, save power consumption, each way power amplifier between each other do not interfere. Take this way to work, can in the small volume integrated multi-way power amplifier work, can in four different antenna direction transmit signal, avoid heat concentration, good heat dissipation.

[0021] 5. In this application, each receiving circuit, each way built-in shutdown switch, can shut down or open a receiving channel, can work in time-sharing or simultaneously, high isolation between each other, do not interfere with each other.

[0022] 6. In this application, the transmitting and receiving circuits are designed with switch matrix, and the input and output ports can be freely switched to correspond to 2x4, which is convenient for use and reuse. Two transmitting input ports can be arbitrarily switched to four antenna port outputs. Four antenna input ports can also be arbitrarily switched to two receiving port outputs. BRIEF DESCRIPTION OF DRAWINGS

[0023] Fig. 1 is the principle block diagram of the ultra-wideband multi-channel transceiver module of the application;

[0024] Fig. 2 is the principle block diagram of the four-channel receiving circuit in the application;

[0025] Fig. 3 is the principle block diagram of the four-channel transmitting circuit in the application. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical scheme and advantages of the embodiments of the application more clear, the technical scheme in the embodiments of the application will be described clearly and completely in combination with the embodiments of the application. Obviously, the described embodiments are part of the embodiments of the application, not all the embodiments. Based on the embodiments in the application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the application.

[0027] Embodiment:

[0028] Reference Figs. 1-3 An ultra-wideband multi-channel transceiver module includes a four-channel receiving circuit and a four-channel transmitting circuit. The main function of the four-channel receiving circuit is to amplify and low-noise amplify the 2-18GHz signals received from the four-channel antenna, and then select and output two paths through a 2x4 switch matrix. The main function of the four-channel transmitting circuit is to amplify and filter the input two-way 2-18GHz radio frequency signals, select through a 2x4 switch matrix, and then enter the four-channel power amplifier circuit to push to a higher power, and then output from the four-channel antenna port through the transceiver switch.

[0029] The main function of the four-channel receiving circuit is to receive the 2-18GHz signal from the antenna through the transceiver switch, first perform amplitude limiting and low-noise amplification, then switch on, and then pass through a 2x4 switch matrix to output in two ways. All devices of the receiving circuit, including switches, low-noise amplifiers, and amplitude limiters, use broadband devices.

[0030] Through the 2x4 switch matrix, the signals of the four antenna ports can be output to two receiving ports, realizing a 4-to-2 port mapping relationship, port multiplexing, and multi-functional switching.

[0031] The transceiver switch uses a high-power GaN switch, which has the characteristics of small insertion loss and high anti-burning power. The amplitude limiter prevents the high-power signal from being input through the switch in reverse during transmission, which can burn the receiving circuit and has the function of protecting the receiving circuit.

[0032] The receiving final-stage circuit uses a super-wideband equalizer to realize gain equalization of the entire frequency band, so that the gain fluctuation of the entire band is controlled within a relatively small range, about 4dB.

[0033] Each receiving channel is provided with a receiving-off switch to improve the isolation of each receiving channel, and each channel can work independently without affecting each other.

[0034] The main function of the four-channel transmitting circuit is to amplify and filter the input two-way 2-18GHz radio frequency signals, pass through a 2x4 switch matrix, and output four ways. Each way is independent and performs gain and power amplification to push to the required power, and finally outputs to the corresponding antenna port (antenna 1-antenna 4) through the transceiver switch.

[0035] The final-stage power amplifier uses a high-power super-wideband GaN power amplifier, which has the advantages of high efficiency and wide operating frequency band.

[0036] Each transmitting channel is provided with a transmitting-off switch to improve the isolation of the transmitting channel, so that transmission and reception are not performed at the same time. In addition, the power amplifier is provided with a power modulation circuit to control the power supply of the power amplifier, which has a very fast response time and can quickly turn on and off the power amplifier. Through this design, each power amplifier can work at different times to save power consumption, and each power amplifier does not interfere with each other to prevent excessive heat concentration.

[0037] Through the 2x4 switch matrix, the input two-way transmitting signals can be output to four different antenna ports, realizing a 2-to-4 port mapping relationship, port multiplexing, and multi-functional switching.

[0038] In this application, the power division, synthesis, switch switching, and power-off control combination can integrate four-way receiving and four-way transmitting work in a very small volume.

[0039] In the application, the antenna port adopts high-power GaN switch for transceiving switching. Meanwhile, the receiving and transmitting branches are additionally provided with off switches, which can turn off the receiving when transmitting and turn off the transmitting when receiving, and the transceiving isolation is high.

[0040] In the application, the frequency band covered by the product is very wide, and the circuit adopts a super wideband equalization optimization circuit, so that the receiving gain fluctuation of the full frequency band 2-18GHz is very small, about within 4dB.

[0041] In the application, each transmitting circuit and power amplifier adopts power modulation design, has power-off time-sharing work function, saves power consumption, and the power amplifiers do not interfere with each other. By working in this way, multiple power amplifiers can be integrated in a very small size, and signals can be transmitted in four different antenna directions, avoiding heat concentration and good heat dissipation.

[0042] In the application, each receiving circuit is provided with an off switch, which can turn off or open a receiving channel, and can work in time-sharing or simultaneously, and the isolation between them is high and they do not interfere with each other.

[0043] In the application, the transmitting and receiving circuits are both designed with a switch matrix, and the input and output ports can be freely switched to correspond to 2x4, which is convenient for use and reuse. Two transmitting input ports can be arbitrarily switched to four antenna port outputs. Four antenna input ports can also be arbitrarily switched to two receiving port outputs.

[0044] The above embodiments are only used to illustrate the technical solutions of the application, but not to limit them; although the application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the application.

Claims

1. An ultra-wideband multi-path transceiver module, characterized by: The utility model relates to a four-channel receiver and four-channel transmitter, which are connected through a 2x4 switch matrix. The four-channel receiver receives 2-18GHz signals from the antenna through a transceiver switch, performs amplitude limiting and low-noise amplification, and then is switched on through the switch matrix and is amplified and filtered in two ways. The four-channel transmitter amplifies and filters the input two-way 2-18GHz radio frequency signals, and outputs four ways through the 2x4 switch matrix. The four-channel receiver outputs the signals from the four antenna ports to two receiving ports through the 2x4 switch matrix, realizes a 4-to-2 port mapping relationship, and achieves port multiplexing and multi-functional switching.

2. The ultra-wideband multi-channel transceiver module of claim 1, wherein: The transceiver switch of the four-channel receiver uses a high-power GaN switch.

3. The ultra-wideband multiplexer module as described in claim 1, characterized in that: The receiving final-stage circuit of the four-channel receiver uses a super-wideband equalizer to realize gain equalization in the full frequency band.

4. The ultra-wide band multi-channel transceiver module of claim 1, wherein: Each receiving channel of the four-channel receiver is provided with a receiving-off switch.

5. The ultra-wideband multi-channel transceiver module of claim 1, wherein: The final-stage power amplifier of the four-channel transmitter uses a high-power super-wideband GaN power amplifier, which is provided with a power supply modulation circuit.

6. The ultra-wide band multi-channel transceiver module of claim 1, wherein: Each transmitting channel of the four-channel transmitter is provided with a transmitting-off switch to improve the isolation of the transmitting and receiving channels, and the transmitting and receiving channels work in time division.

7. The ultra-wideband multiplexer module as described in claim 1, characterized in that: The four-channel transmitter outputs the input two-way transmitting signals to four different antenna ports through the 2x4 switch matrix, realizes a 2-to-4 port mapping relationship, and achieves port multiplexing and multi-functional switching.

8. The ultra-wide band multi-channel transceiver module of claim 1, wherein: ​

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