CN216252744U - 5G repeater - Google Patents

5G repeater Download PDF

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Publication number
CN216252744U
CN216252744U CN202121658731.7U CN202121658731U CN216252744U CN 216252744 U CN216252744 U CN 216252744U CN 202121658731 U CN202121658731 U CN 202121658731U CN 216252744 U CN216252744 U CN 216252744U
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radio frequency
electrically connected
frequency signal
frequency switch
downlink
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林定福
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Beijing Hewei Technology Co ltd
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Beijing Hewei Technology Co ltd
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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

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Abstract

The utility model provides a 5G repeater, which comprises a forward antenna, a coupling filtering system, a first radio frequency switch, a first low noise amplifier, a first loop saturation protection system, a second radio frequency switch, a first filter and a backward antenna which are sequentially and electrically connected, a second low noise amplifier and a second loop saturation protection system which are sequentially and electrically connected with the second radio frequency switch, and a synchronous circuit which is electrically connected with the coupling filtering system, the first radio frequency switch and the second radio frequency switch, wherein the second loop saturation protection system is electrically connected with the first radio frequency switch. The utility model directly amplifies the 5G radio frequency signal without up-down frequency conversion, directly carries out the direct amplification processing of the radio frequency signal, controls the conduction and the closing of the uplink and downlink circuits through the synchronous circuit, and sets a loop saturation protection system, thereby effectively preventing the loop from being saturated and preventing the same frequency interference. The repeater has the advantages of simple working principle, high processing efficiency, relatively low cost and strong manufacturability, and is suitable for large-scale generation to solve the problem of the dead zone of the 5G signal.

Description

5G repeater
Technical Field
The utility model relates to the technical field of wireless communication networks, in particular to a 5G repeater.
Background
The higher the frequency of the 5G signal is, the weaker the diffraction capability of the radio wave is, and the larger link loss problem can be faced when the 5G macro base station signal deployed in a high frequency band passes through a wall indoors, so that the indoor deep coverage is limited. Because the 5G network adopts the millimeter wave technology, it is an electromagnetic wave with weak penetration and capable of being attenuated rapidly, which determines that its anti-interference capability is weak and the signal penetration of 5G is poor, so the signal coverage of a common 5G base station is only 200 meters in general. Therefore, a repeater is needed to make up for the insufficient coverage of the 5G signal, expand the coverage of the base station, fill the coverage busy, reduce the cost of network coverage and promote the development of 5G.
In the existing repeater technology, a forward antenna is used for receiving a downlink signal of a base station into a repeater, a low-noise amplifier is used for amplifying a useful signal, the useful signal is converted into an intermediate-frequency signal through down conversion, the intermediate-frequency signal is converted into a radio frequency through up conversion, the radio frequency signal is amplified through a power amplifier, and the radio frequency signal is transmitted to a mobile station through a backward antenna, namely the radio frequency signal is transmitted to the base station through the low-noise amplifier, a down converter, a filter, a middle amplifier, an up converter and the power amplifier, so that the two-way communication between the base station and the mobile station is realized. The prior art has relatively complex circuit, relatively complex working principle and high production and manufacturing cost.
Disclosure of Invention
The utility model aims to solve the problems of relatively complex circuit and working principle and high production and manufacturing cost of the existing repeater, and provides a 5G repeater which directly amplifies a 5G radio frequency signal without up-down frequency conversion and directly performs radio frequency signal direct amplification processing, wherein an uplink circuit and a downlink circuit are controlled to be switched on and off through a synchronous circuit, and a loop saturation protection system is arranged, so that loop saturation is effectively prevented, and co-channel interference is prevented. The repeater has the advantages of simple working principle, high processing efficiency, relatively low cost and strong manufacturability, and is suitable for large-scale generation to solve the problem of the dead zone of the 5G signal.
The utility model relates to a 5G repeater, which comprises a forward antenna, a coupling filtering system, a first radio frequency switch, a first low noise amplifier, a first loop saturation protection system, a second radio frequency switch, a first filter and a backward antenna which are sequentially and electrically connected, a second low noise amplifier and a second loop saturation protection system which are sequentially and electrically connected with the second radio frequency switch, and a synchronous circuit which is electrically connected with the coupling filtering system, the first radio frequency switch and the second radio frequency switch, wherein the second loop saturation protection system is electrically connected with the first radio frequency switch;
the first loop saturation protection system comprises a first amplitude limiter and a first power amplifier which are sequentially and electrically connected, the first amplitude limiter is electrically connected with the first low-noise amplifier, and the first power amplifier is electrically connected with the second radio frequency switch;
the second loop saturation protection system comprises a second amplitude limiter and a second power amplifier which are sequentially and electrically connected, the second amplitude limiter is electrically connected with the second low-noise amplifier, and the second power amplifier is electrically connected with the first radio frequency switch;
the coupling filtering system is used for receiving the downlink radio frequency signal, filtering the downlink radio frequency signal, and outputting the downlink radio frequency signal to the first low noise amplifier through the first radio frequency switch; the coupling filtering system is used for receiving the uplink radio frequency signal, filtering the uplink radio frequency signal and outputting the filtered uplink radio frequency signal to the forward antenna.
As a preferred mode, the synchronization circuit comprises a radio frequency channel and an FPGA which are electrically connected, the radio frequency channel is electrically connected with the coupling filtering system, and the FPGA is electrically connected with the first radio frequency switch and the second radio frequency switch.
As a preferred mode, the coupling filtering system comprises a coupler and a second filter which are electrically connected, the coupler is electrically connected with the forward antenna and the synchronous circuit, and the second filter is electrically connected with the third radio frequency switch.
As a preferred mode, the second filter is electrically connected with the forward antenna, and the coupler is electrically connected with the third radio frequency switch and the synchronous circuit.
The 5G repeater further comprises a third radio frequency switch electrically connected between the first radio frequency switch and the first low noise amplifier, and the third radio frequency switch is electrically connected with the synchronous circuit.
The 5G repeater further comprises a fourth radio frequency switch electrically connected between the second radio frequency switch and the second low noise amplifier, and the fourth radio frequency switch is electrically connected with the synchronous circuit.
The 5G repeater further comprises a first driving amplifier electrically connected between the first low noise amplifier and the first loop saturation protection system.
As a preferable mode, the 5G repeater is characterized in that a second driving amplifier is electrically connected between the second low noise amplifier and the second loop saturation protection system.
As a preferable mode, the first loop saturation protection system further comprises a first driving amplifier electrically connected with the first low noise amplifier, and the first driving amplifier is electrically connected with the first amplitude limiter.
In a preferred embodiment of the 5G repeater, the second loop saturation protection system further includes a second driver amplifier electrically connected to the second low noise amplifier, and the second driver amplifier is electrically connected to the second limiter.
The forward antenna is used for receiving downlink radio frequency signals and outputting the downlink radio frequency signals to the coupling filter system, the coupling filter system is used for receiving the downlink radio frequency signals, filtering the downlink radio frequency signals, outputting the downlink radio frequency signals to the first low-noise amplifier through the first radio frequency switch, the coupling filter system is used for coupling and outputting the downlink radio frequency signals to the synchronous circuit, the first low-noise amplifier is used for receiving the downlink radio frequency signals, amplifying the downlink radio frequency signals and outputting the downlink radio frequency signals to the first loop saturation protection system, the first loop saturation protection system is used for receiving the downlink radio frequency signals, inhibiting the downlink radio frequency signals when the gain of the downlink radio frequency signals is too high, the first loop saturation protection system is used for receiving the downlink radio frequency signals, amplifying the downlink radio frequency signals, outputting the downlink radio frequency signals to the first filter through the second radio frequency switch, the first filter is used for receiving the downlink radio frequency signals, filtering the downlink radio frequency signals, outputting the downlink radio frequency signals to the backward antenna, and transmitting the downlink radio frequency signals, the backward antenna is used for receiving an uplink radio frequency signal and outputting the uplink radio frequency signal to the first filter, the first filter is used for receiving the uplink radio frequency signal, filtering the uplink radio frequency signal, outputting the uplink radio frequency signal to the second low noise amplifier through the second radio frequency switch, the second low noise amplifier is used for receiving the uplink radio frequency signal, amplifying the uplink radio frequency signal and outputting the uplink radio frequency signal to the second loop saturation protection system, the second loop saturation protection system receives the uplink radio frequency signal, inhibits the uplink radio frequency signal when the gain of the uplink radio frequency signal is too high, the second loop saturation protection system receives the uplink radio frequency signal, amplifies the power of the uplink radio frequency signal, outputs the uplink radio frequency signal to the coupling filter system through the first radio frequency switch, the coupling filter system receives the uplink radio frequency signal, filters the uplink radio frequency signal and transmits the uplink radio frequency signal to the forward antenna, and the synchronous circuit is used for receiving the downlink radio frequency signal coupled by the coupling filter system and controlling the first radio frequency switch and the second radio frequency switch to be turned on and turned off;
the first amplitude limiter is used for receiving the downlink radio frequency signal, inhibiting the downlink radio frequency signal when the gain of the downlink radio frequency signal is too high, and outputting the downlink radio frequency signal to the first power amplifier;
the second amplitude limiter is used for receiving the uplink radio frequency signal, inhibiting the uplink radio frequency signal when the gain of the uplink radio frequency signal is too high, and then outputting the uplink radio frequency signal to the second power amplifier, and the second power amplifier is used for receiving the uplink radio frequency signal, amplifying the uplink radio frequency signal, and then outputting the uplink radio frequency signal to the coupling filtering system through the first radio frequency switch.
The radio frequency channel is used for receiving a downlink radio frequency signal coupled and output by the coupling filter system, performing analog-to-digital conversion and down-conversion on the downlink radio frequency signal and outputting the downlink radio frequency signal to the FPGA, and the FPGA is used for receiving the downlink radio frequency signal and controlling the first radio frequency switch and the second radio frequency switch to be switched on and off;
the downlink radio frequency signals are 5G signals, and the frequency bands of the downlink radio frequency signals are N41, N77, N78 and N79;
the coupler is used for receiving the downlink radio frequency signal and coupling and outputting the downlink radio frequency signal to the second filter and the synchronous circuit, and the second filter is used for receiving the downlink radio frequency signal, filtering the downlink radio frequency signal and outputting the filtered downlink radio frequency signal to the first low noise amplifier through the first radio frequency switch;
the second filter is used for receiving the downlink radio frequency signal, filtering the downlink radio frequency signal and outputting the downlink radio frequency signal to the coupler, the coupler is used for receiving the downlink radio frequency signal and coupling and outputting the downlink radio frequency signal to the synchronous circuit, and the coupler is used for receiving the downlink radio frequency signal, coupling the downlink radio frequency signal and outputting the downlink radio frequency signal to the first low noise amplifier through the first radio frequency switch
The third radio frequency switch is electrically connected with the synchronous circuit and is switched on and off under the control of the synchronous circuit;
the first low-noise amplifier is used for receiving the downlink radio frequency signal, amplifying the downlink radio frequency signal and outputting the amplified downlink radio frequency signal to the first drive amplifier, and the first drive amplifier is used for receiving the downlink radio frequency signal, amplifying the downlink radio frequency signal and outputting the amplified downlink radio frequency signal to the first loop saturation protection system;
the first driving amplifier is used for receiving the downlink radio frequency signal, amplifying the downlink radio frequency signal and outputting the amplified downlink radio frequency signal to the first amplitude limiter;
the second driving amplifier is used for receiving the downlink radio frequency signal, amplifying the downlink radio frequency signal and outputting the amplified downlink radio frequency signal to the second amplitude limiter.
The number of rf switches may be increased to increase isolation.
The working principle of the utility model is as follows: forward antenna (receiving) downlink transceiver. The received radio frequency signal is transmitted to a synchronous circuit through a filter and a coupler, cell search is carried out, uplink and downlink time slots are resolved, time slot control level is output, and a radio frequency switch is controlled. The direct connection end passes through the downlink radio frequency switch, the downlink time slot level turns on the radio frequency switch, and the uplink radio frequency switch turns off. And outputting the downlink radio frequency signal. And the backward antenna receives the radio frequency signal, the uplink time slot level turns on the uplink radio frequency switch and turns off the downlink radio frequency switch after passing through the filter. And outputting the uplink radio frequency signal.
The application comprises the following steps: the uplink and the downlink of the 5G TDD radio frequency signal are separated, the modular design is realized, and the isolation degree is high. The method is suitable for the radio frequency front ends of 5G repeater stations and micropower stations with various powers.
The device has an input dynamic range of-100 dBm to-45 dBm, and the gains of an uplink and a downlink are 82dB respectively. Maximum output power 23 dBm; the minimum output is 0 dBm. When-75 dBm to-45 dBm is input, the output power is 23dBm +/-1. 5 dBm.
The link isolation between the uplink and the downlink is more than 180 dB. (four radio frequency switches are isolated) inputs-100 dBm and outputs 0 dBm; input-75 dBm, output 23 dBm.
To improve output power and gain, it is necessary to increase isolation, add circulators or rf switches.
The uplink and downlink do not use frequency conversion technology, but signal direct amplification processing is carried out, an independent synchronous system is used for processing TDD, the logical isolation degree of the uplink and downlink multi-radio frequency switch combination is high, each circuit is isolated in a sub-cavity, and the problem of loop coupling between amplifiers is solved. The operating voltage is 5.5V. The method is suitable for 5G n41\ n77\ n 79. The product has eight modules: the power supply comprises a forward switch module, a backward switch module, a synchronous module, an uplink drive module, a downlink drive module, an uplink power amplification module, a downlink power amplification module and a power supply module
The utility model has the following advantages:
(1) the uplink and downlink do not use frequency conversion technology, but directly amplify the 5G signals;
(2) the TDD is processed by using an independent synchronous circuit, and the logical isolation of the uplink and downlink communication multi-radio frequency switch combination is high;
(3) by setting a loop saturation system, the problem of loop coupling between amplifiers is solved, and same frequency interference is prevented;
(4) the working voltage is 5.5V, the device is suitable for n41\ n77\ n78\ n79 frequency bands of 5G, and is suitable for radio frequency front ends of 5G repeater stations and micropower stations with various powers.
Drawings
FIG. 1 is a block diagram of a 5G repeater in accordance with an embodiment 1;
FIG. 2 is a block diagram of a 5G repeater in accordance with embodiment 2;
FIG. 3 is a block diagram of a 5G repeater in accordance with an embodiment 3.
Reference numerals:
1. a forward antenna; 2. a coupling filtering system; 21. a coupler; 22. a second filter; 3. a first radio frequency switch; 4. a first low noise amplifier; 5. a first loop saturation protection system; 51. a first limiter; 52. a first power amplifier; 53. a third driver amplifier; 6. a second radio frequency switch; 7. a first filter; 8. a backward antenna; 9. A second low noise amplifier; 10. a second loop saturation protection system; 101. a second limiter; 102. a second power amplifier; 103. a fourth drive amplifier; 11. a synchronization circuit; 111. a radio frequency channel; 112. an FPGA; 12. a third radio frequency switch; 13. a fourth radio frequency switch; 14. a first driver amplifier; 15. a second driver amplifier.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Example 1
As shown in fig. 1, a 5G repeater includes a forward antenna 1, a coupling filter system 2, a first radio frequency switch 3, a first low noise amplifier 4, a first loop saturation protection system 5, a second radio frequency switch 6, a first filter 7, a backward antenna 8, a second low noise amplifier 9, a second loop saturation protection system 10, and a synchronization circuit 11, wherein the second low noise amplifier and the second loop saturation protection system are sequentially and electrically connected to the second radio frequency switch 6, and the synchronization circuit 11 is electrically connected to the coupling filter system 2, the first radio frequency switch 3, and the second radio frequency switch 6, and the second loop saturation protection system 10 is electrically connected to the first radio frequency switch 3;
the first loop saturation protection system 5 comprises a first amplitude limiter 51 and a first power amplifier 52 which are electrically connected in sequence, wherein the first amplitude limiter 51 is electrically connected with the first low noise amplifier 4, and the first power amplifier 52 is electrically connected with the second radio frequency switch 6;
the second loop saturation protection system 10 includes a second limiter 101 and a second power amplifier 102 electrically connected in sequence, the second limiter 101 is electrically connected to the second low noise amplifier 9, and the second power amplifier 102 is electrically connected to the first radio frequency switch 3.
The forward antenna 1 is used for receiving downlink radio frequency signals and outputting the downlink radio frequency signals to the coupling filter system 2, the coupling filter system 2 is used for receiving the downlink radio frequency signals, filtering the downlink radio frequency signals, and outputting the downlink radio frequency signals to the first low noise amplifier 4 through the first radio frequency switch 3, the coupling filter system 2 is used for coupling and outputting the downlink radio frequency signals to the synchronous circuit 11, the first low noise amplifier 4 is used for receiving the downlink radio frequency signals, amplifying the downlink radio frequency signals, and outputting the downlink radio frequency signals to the first loop saturation protection system 5, the first loop saturation protection system 5 is used for receiving the downlink radio frequency signals, amplifying the downlink radio frequency signals, and outputting the downlink radio frequency signals to the first filter 7 through the second radio frequency switch 6, the first filter 7 is used for receiving the downlink radio frequency signals, filtering the downlink radio frequency signals, and outputting the downlink radio frequency signals to the backward antenna 8, the backward antenna 8 is used for receiving downlink radio frequency signals and transmitting the downlink radio frequency signals, the backward antenna 8 is used for receiving uplink radio frequency signals and outputting the uplink radio frequency signals to the first filter 7, the first filter 7 is used for receiving uplink radio frequency signals and filtering the uplink radio frequency signals and then outputting the uplink radio frequency signals to the second low noise amplifier 9 through the second radio frequency switch 6, the second low noise amplifier 9 is used for receiving uplink radio frequency signals and amplifying the uplink radio frequency signals and then outputting the uplink radio frequency signals to the second loop saturation protection system 10, the second loop saturation protection system 10 receives uplink radio frequency signals and inhibits the uplink radio frequency signals when the gain of the uplink radio frequency signals is too high, the second loop saturation protection system 10 is used for receiving uplink radio frequency signals and amplifying the uplink radio frequency signals and then outputting the uplink radio frequency signals to the coupling filter system 2 through the first radio frequency switch 3, and the coupling filter system 2 is used for receiving uplink radio frequency signals and filtering the uplink radio frequency signals and then outputting the uplink radio frequency signals to the forward antenna 1, the forward antenna 1 is used for receiving and transmitting an uplink radio frequency signal, and the synchronization circuit 11 is used for receiving a downlink radio frequency signal coupled by the coupling filter system 2, resolving a 5G TDD uplink time slot signal and a 5G TDD downlink time slot signal and controlling the on and off of the first radio frequency switch 3 and the second radio frequency switch 6;
the first amplitude limiter 51 is configured to receive a downlink radio frequency signal, suppress the downlink radio frequency signal when a gain of the downlink radio frequency signal is too high, and output the downlink radio frequency signal to the first power amplifier 52, and the first power amplifier 52 is configured to receive the downlink radio frequency signal, amplify power of the downlink radio frequency signal, and output the downlink radio frequency signal to the first filter 7 through the second radio frequency switch 6;
the second amplitude limiter 101 is configured to receive an uplink radio frequency signal, suppress the uplink radio frequency signal when the gain of the uplink radio frequency signal is too high, and output the uplink radio frequency signal to the second power amplifier 102, and the second power amplifier 102 is configured to receive the uplink radio frequency signal, amplify the uplink radio frequency signal, and output the uplink radio frequency signal to the coupling filtering system 2 through the first radio frequency switch 3.
Example 2
As shown in fig. 2, a 5G repeater includes a forward antenna 1, a coupling filter system 2, a first radio frequency switch 3, a third radio frequency switch 12, a first low noise amplifier 4, a first driving amplifier 14, a first loop saturation protection system 5, a second radio frequency switch 6, a first filter 7, a backward antenna 8, a fourth radio frequency switch 13, a second low noise amplifier 9, a second driving amplifier 15, a second loop saturation protection system 10, which are electrically connected to the second radio frequency switch 6 in sequence, and a synchronization circuit 11, which is electrically connected to the coupling filter system 2, the first radio frequency switch 3, the second radio frequency switch 6, the third radio frequency switch 12, and the fourth radio frequency switch 13;
the coupling filtering system 2 comprises a coupler 21 and a second filter 22 which are electrically connected, wherein the coupler 21 is electrically connected with the forward antenna 1 and the synchronous circuit 11, and the second filter 22 is electrically connected with the third radio frequency switch 12;
the first loop saturation protection system 5 comprises a third drive amplifier 53, a first amplitude limiter 51 and a first power amplifier 52 which are electrically connected in sequence, wherein the third drive amplifier 53 is electrically connected with the first drive amplifier 14, and the first power amplifier 52 is electrically connected with the second radio frequency switch 6;
the second loop saturation protection system 10 comprises a second amplitude limiter 101, a second power amplifier 102 and a fourth drive amplifier 103 which are electrically connected in sequence, wherein the second amplitude limiter 101 is electrically connected with the second drive amplifier 15, and the second power amplifier 102 is electrically connected with the first radio frequency switch 3;
the synchronization circuit 11 includes an rf path 111 and an FPGA112 electrically connected, the rf path 111 being electrically connected to the coupler 21,
the FPGA112 is electrically connected with the first radio frequency switch 3, the second radio frequency switch 6, the third radio frequency switch 12 and the fourth radio frequency switch 13.
The forward antenna 1 is configured to receive a downlink radio frequency signal and output the downlink radio frequency signal to the coupler 21, the coupler 21 is configured to couple and output the downlink radio frequency signal to the synchronization circuit 11 and the second filter 22, the second filter 22 is configured to receive the downlink radio frequency signal, filter the downlink radio frequency signal, output the downlink radio frequency signal to the first low noise amplifier 4 through the first radio frequency switch 3 and the third radio frequency switch 12, the first low noise amplifier 4 is configured to receive the downlink radio frequency signal, amplify the downlink radio frequency signal, and output the amplified downlink radio frequency signal to the first driver amplifier 14, the first driver amplifier 14 is configured to receive the downlink radio frequency signal, amplify the amplified downlink radio frequency signal, and output the amplified downlink radio frequency signal to the third driver amplifier 53, the third driver amplifier 53 is configured to receive the downlink radio frequency signal, amplify the amplified downlink radio frequency signal, and output the amplified downlink radio frequency signal to the first amplitude limiter 51, the first amplitude limiter 51 is configured to receive the downlink radio frequency signal, suppress the amplified downlink radio frequency signal when the gain of the downlink radio frequency signal is too high, and output the first power amplifier 52, the first power amplifier 52 is configured to receive the downlink radio frequency signal, amplify the power of the downlink radio frequency signal, and output the downlink radio frequency signal to the first filter 7 through the second radio frequency switch 6, where the first filter 7 is configured to receive the downlink radio frequency signal, filter the downlink radio frequency signal, and output the downlink radio frequency signal to the backward antenna 8, and the backward antenna 8 is configured to receive the downlink radio frequency signal and transmit the downlink radio frequency signal;
the backward antenna 8 is used for receiving an uplink radio frequency signal and outputting the uplink radio frequency signal to the first filter 7, the first filter 7 is used for receiving the uplink radio frequency signal, filtering the uplink radio frequency signal, outputting the uplink radio frequency signal to the second low-noise amplifier 9 through the second radio frequency switch 6 and the fourth radio frequency switch 13, the second low-noise amplifier 9 is used for receiving the uplink radio frequency signal, amplifying the uplink radio frequency signal, and outputting the uplink radio frequency signal to the second drive amplifier 15, the second drive amplifier 15 is used for receiving the uplink radio frequency signal, amplifying the uplink radio frequency signal, and outputting the uplink radio frequency signal to the fourth drive amplifier 103, the fourth drive amplifier 103 is used for receiving the uplink radio frequency signal, amplifying the uplink radio frequency signal, and outputting the uplink radio frequency signal to the second amplitude limiter 101, the second amplitude limiter 101 is used for receiving the uplink radio frequency signal, inhibiting the uplink radio frequency signal when the gain of the uplink radio frequency signal is too high, and outputting the uplink radio frequency signal to the second power amplifier 102, the uplink radio frequency signal is used for receiving the uplink radio frequency signal, amplifying, and outputting the uplink radio frequency signal through the first radio frequency switch 3 The signal is output to a second filter 22, the second filter 22 is used for receiving an uplink radio frequency signal, filtering the uplink radio frequency signal and outputting the filtered uplink radio frequency signal to a coupler 21, the coupler 21 is used for receiving the uplink radio frequency signal and outputting the uplink radio frequency signal to a forward antenna 1, and the forward antenna 1 is used for receiving the uplink radio frequency signal and transmitting the uplink radio frequency signal;
the synchronization circuit 11 is configured to receive the downlink radio frequency signal coupled by the coupler 21, resolve a 5G TDD uplink timeslot signal and a 5G TDD downlink timeslot signal, and control the first radio frequency switch 3, the second radio frequency switch 6, the third radio frequency switch 12, and the fourth radio frequency switch 13 to be turned on and off.
The device has an input dynamic range of-100 dBm to-45 dBm, and the gains of an uplink and a downlink are 82dB respectively. Maximum output power 23 dBm; the minimum output is 0 dBm. When-75 dBm to-45 dBm is input, the output power is 23dBm +/-1. 5 dBm.
The link isolation between the uplink and the downlink is more than 180dB, minus 100dBm is input, and 0dBm is output; input-75 dBm, output 23 dBm.
Example 3
As shown in fig. 3, a 5G repeater includes a forward antenna 1, a coupling filter system 2, a first radio frequency switch 3, a third radio frequency switch 12, a first low noise amplifier 4, a first driving amplifier 14, a first loop saturation protection system 5, a second radio frequency switch 6, a first filter 7, a backward antenna 8, a fourth radio frequency switch 13, a second low noise amplifier 9, a second driving amplifier 15, a second loop saturation protection system 10, which are electrically connected to the second radio frequency switch 6 in sequence, and a synchronization circuit 11, which is electrically connected to the coupling filter system 2, the first radio frequency switch 3, the second radio frequency switch 6, the third radio frequency switch 12, and the fourth radio frequency switch 13;
the coupling filtering system 2 comprises a coupler 21 and a second filter 22 which are electrically connected, the second filter 22 is electrically connected with the forward antenna 1, and the coupler 21 is electrically connected with the third radio frequency switch 12 and the synchronous circuit 11;
the first loop saturation protection system 5 comprises a third drive amplifier 53, a first amplitude limiter 51, a first power amplifier 52 and a second power amplifier, wherein the third drive amplifier 53, the first amplitude limiter 51 and the first power amplifier 52 are electrically connected in sequence, the third drive amplifier 53 is electrically connected with the first drive amplifier 14, and the first power amplifier 52 is electrically connected with the second radio frequency switch 6;
the second loop saturation protection system 10 comprises a second amplitude limiter 101, a second power amplifier 102 and a fourth drive amplifier 103 which are electrically connected in sequence, wherein the second amplitude limiter 101 is electrically connected with the second drive amplifier 15, and the second power amplifier 102 is electrically connected with the first radio frequency switch 3;
the synchronization circuit 11 includes an rf path 111 and an FPGA112 electrically connected, the rf path 111 being electrically connected to the coupler 21,
the FPGA112 is electrically connected with the first radio frequency switch 3, the second radio frequency switch 6, the third radio frequency switch 12 and the fourth radio frequency switch 13.
The forward antenna 1 is configured to receive a downlink radio frequency signal and output the downlink radio frequency signal to a second filter 22, the second filter 22 is configured to receive the downlink radio frequency signal, filter the downlink radio frequency signal and transmit the downlink radio frequency signal to a coupler 21, the coupler 21 is configured to couple and output the downlink radio frequency signal to a synchronization circuit 11, the coupler 21 is configured to receive the downlink radio frequency signal, filter the downlink radio frequency signal and output the downlink radio frequency signal to a first low noise amplifier 4 through a first radio frequency switch 3 and a third radio frequency switch 12, the first low noise amplifier 4 is configured to receive the downlink radio frequency signal, amplify the downlink radio frequency signal and output the amplified downlink radio frequency signal to a first driving amplifier 14, the first driving amplifier 14 is configured to receive the downlink radio frequency signal and output the amplified downlink radio frequency signal to a third driving amplifier 53, the third driving amplifier 53 is configured to receive the downlink radio frequency signal and output the amplified downlink radio frequency signal to a first amplitude limiter 51, the first amplitude limiter 51 is configured to receive the downlink radio frequency signal, suppress the amplified downlink radio frequency signal and output the suppressed when a gain of the downlink radio frequency signal is too high, and output the first amplitude limiter 51 The first power amplifier 52 is configured to receive the downlink radio frequency signal, amplify the downlink radio frequency signal with power, and output the amplified downlink radio frequency signal to the first filter 7 through the second radio frequency switch 6, the first filter 7 is configured to receive the downlink radio frequency signal, filter the downlink radio frequency signal, and output the filtered downlink radio frequency signal to the backward antenna 8, and the backward antenna 8 is configured to receive the downlink radio frequency signal and transmit the filtered downlink radio frequency signal;
the backward antenna 8 is used for receiving an uplink radio frequency signal and outputting the uplink radio frequency signal to the first filter 7, the first filter 7 is used for receiving the uplink radio frequency signal, filtering the uplink radio frequency signal, outputting the uplink radio frequency signal to the second low-noise amplifier 9 through the second radio frequency switch 6 and the fourth radio frequency switch 13, the second low-noise amplifier 9 is used for receiving the uplink radio frequency signal, amplifying the uplink radio frequency signal, and outputting the uplink radio frequency signal to the second drive amplifier 15, the second drive amplifier 15 is used for receiving the uplink radio frequency signal, amplifying the uplink radio frequency signal, and outputting the uplink radio frequency signal to the fourth drive amplifier 103, the fourth drive amplifier 103 is used for receiving the uplink radio frequency signal, amplifying the uplink radio frequency signal, and outputting the uplink radio frequency signal to the second amplitude limiter 101, the second amplitude limiter 101 is used for receiving the uplink radio frequency signal, inhibiting the uplink radio frequency signal when the gain of the uplink radio frequency signal is too high, and outputting the uplink radio frequency signal to the second power amplifier 102, the uplink radio frequency signal is used for receiving the uplink radio frequency signal, amplifying, and outputting the uplink radio frequency signal through the first radio frequency switch 3 The signal is output to a second filter 22, the second filter 22 is used for receiving an uplink radio frequency signal, filtering the uplink radio frequency signal and outputting the filtered uplink radio frequency signal to a coupler 21, the coupler 21 is used for receiving the uplink radio frequency signal and outputting the uplink radio frequency signal to a forward antenna 1, and the forward antenna 1 is used for receiving the uplink radio frequency signal and transmitting the uplink radio frequency signal;
the synchronization circuit 11 is configured to receive the downlink radio frequency signal coupled by the coupler 21, resolve a 5G TDD uplink timeslot signal and a 5G TDD downlink timeslot signal, and control the first radio frequency switch 3, the second radio frequency switch 6, the third radio frequency switch 12, and the fourth radio frequency switch 13 to be turned on and off.
The device has an input dynamic range of-100 dBm to-45 dBm, and the gains of an uplink and a downlink are 82dB respectively. Maximum output power 23 dBm; the minimum output is 0 dBm. When-75 dBm to-45 dBm is input, the output power is 23dBm +/-1. 5 dBm.
The link isolation between the uplink and the downlink is more than 180dB, minus 100dBm is input, and 0dBm is output; input-75 dBm, output 23 dBm.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and equivalent alternatives or modifications according to the technical solution of the present invention and the inventive concept thereof should be covered by the scope of the present invention.

Claims (10)

1. A5G repeater is characterized in that: the antenna comprises a forward antenna (1), a coupling filtering system (2), a first radio frequency switch (3), a first low noise amplifier (4), a first loop saturation protection system (5), a second radio frequency switch (6), a first filter (7), a backward antenna (8), a second low noise amplifier (9) and a second loop saturation protection system (10) which are sequentially and electrically connected with the second radio frequency switch (6), and a synchronous circuit (11) which is electrically connected with the coupling filtering system (2), the first radio frequency switch (3) and the second radio frequency switch (6), wherein the second loop saturation protection system (10) is electrically connected with the first radio frequency switch (3);
the first loop saturation protection system (5) comprises a first amplitude limiter (51) and a first power amplifier (52) which are electrically connected in sequence, the first amplitude limiter (51) is electrically connected with the first low noise amplifier (4), and the first power amplifier (52) is electrically connected with the second radio frequency switch (6);
the second loop saturation protection system (10) comprises a second amplitude limiter (101) and a second power amplifier (102) which are electrically connected in sequence, the second amplitude limiter (101) is electrically connected with the second low noise amplifier (9), and the second power amplifier (102) is electrically connected with the first radio frequency switch (3).
2. The 5G repeater according to claim 1, wherein: the synchronous circuit (11) comprises a radio frequency channel (111) and an FPGA (field programmable gate array) (112), the radio frequency channel (111) is electrically connected with the coupling filtering system (2), and the FPGA (112) is electrically connected with the first radio frequency switch (3) and the second radio frequency switch (6).
3. The 5G repeater according to claim 1, wherein: the coupling filtering system (2) comprises a coupler (21) and a second filter (22) which are electrically connected, wherein the coupler (21) is electrically connected with the forward antenna (1) and the synchronous circuit (11), and the second filter (22) is electrically connected with a third radio frequency switch (12).
4. The 5G repeater according to claim 3, wherein: the second filter (22) is electrically connected to the forward antenna (1), and the coupler (21) is electrically connected to the third radio frequency switch (12) and the synchronization circuit (11).
5. The 5G repeater according to claim 1, wherein: and the radio frequency control circuit further comprises a third radio frequency switch (12) electrically connected between the first radio frequency switch (3) and the first low noise amplifier (4), wherein the third radio frequency switch (12) is electrically connected with the synchronous circuit (11).
6. The 5G repeater according to claim 1, wherein: and the radio frequency circuit further comprises a fourth radio frequency switch (13) electrically connected between the second radio frequency switch (6) and the second low noise amplifier (9), wherein the fourth radio frequency switch (13) is electrically connected with the synchronous circuit (11).
7. The 5G repeater according to claim 1, wherein: further comprising a first driver amplifier (14) electrically connected between the first low noise amplifier (4) and the first loop saturation protection system (5).
8. The 5G repeater according to claim 1, wherein: a second drive amplifier (15) is electrically connected between the second low noise amplifier (9) and the second loop saturation protection system (10).
9. The 5G repeater according to any one of claims 1-8, wherein: the first loop saturation protection system (5) further comprises a third driver amplifier (53) electrically connected to the first low noise amplifier (4), the third driver amplifier (53) being electrically connected to the first limiter (51).
10. The 5G repeater according to any one of claims 1-8, wherein: the second loop saturation protection system (10) further comprises a fourth drive amplifier (103) electrically connected to the second low noise amplifier (9), the fourth drive amplifier (103) being electrically connected to the second limiter (101).
CN202121658731.7U 2021-07-21 2021-07-21 5G repeater Active CN216252744U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202121658731.7U CN216252744U (en) 2021-07-21 2021-07-21 5G repeater

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202121658731.7U CN216252744U (en) 2021-07-21 2021-07-21 5G repeater

Publications (1)

Publication Number Publication Date
CN216252744U true CN216252744U (en) 2022-04-08

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN202121658731.7U Active CN216252744U (en) 2021-07-21 2021-07-21 5G repeater

Country Status (1)

Country Link
CN (1) CN216252744U (en)

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