CN204305019U - Wireless repeater and wireless communication system - Google Patents
Wireless repeater and wireless communication system Download PDFInfo
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- CN204305019U CN204305019U CN201420845499.1U CN201420845499U CN204305019U CN 204305019 U CN204305019 U CN 204305019U CN 201420845499 U CN201420845499 U CN 201420845499U CN 204305019 U CN204305019 U CN 204305019U
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Abstract
The utility model discloses a kind of wireless repeater, this wireless repeater comprises the first transmission circuit unit and the DSP for controlling the first transmission circuit cell operation; First transmission circuit unit comprises the first antenna, the first electronic switch, the first transmission circuit, the first low noise amplification filtration module and the first power amplification filtration module; The common port of the first electronic switch is connected with the first antenna, the first end of the first electronic switch is connected with the input of the first low noise amplification filtration module, second end of the first electronic switch is connected with the output of the first power amplification filtration module, and the control end of the first electronic switch is connected with DSP; The output of the first low noise amplification filtration module is connected with the receiving terminal of the first transmission circuit; The input of the first power amplification filtration module is connected with the transmitting terminal of the first transmission circuit; First transmission circuit is also connected with DSP.The utility model can increase the communication distance between reception signal terminal and signal transmitting terminal.
Description
Technical field
The utility model relates to electronic technology field, particularly a kind of wireless repeater and wireless communication system.
Background technology
Along with the fast development of science and technology, means of communication is constantly being weeded out the old and bring forth the new.At present, universal along with smart mobile phone and mobile internet device, wireless communication technique is also applied to increasing field, but, because wireless communication signal can weaken along with the increase of communication distance, thus remote-wireless communication data is caused to be sent to assigned address.
Summary of the invention
Main purpose of the present utility model is to provide a kind of wireless repeater that can increase communication distance between reception signal terminal and signal transmitting terminal.
For achieving the above object, the utility model provides a kind of wireless repeater, and described wireless repeater comprises the first transmission circuit unit and the DSP for controlling described first transmission circuit cell operation; Described first transmission circuit unit comprises the first antenna, the first electronic switch, the first transmission circuit, carries out filter amplifying processing and the signal after filter amplifying processing exported to the first low noise amplification filtration module of the receiving terminal of described first transmission circuit and be used for carrying out the signal of the transmitting terminal of described first transmission circuit the first power amplification filtration module of filter amplifying processing for the signal received described first antenna; Wherein,
The common port of described first electronic switch is connected with described first antenna, the first end of described first electronic switch is connected with the input of described first low noise amplification filtration module, second end of described first electronic switch is connected with the output of described first power amplification filtration module, and the control end of described first electronic switch is connected with described DSP; The output of described first low noise amplification filtration module is connected with the receiving terminal of described first transmission circuit; The input of described first power amplification filtration module is connected with the transmitting terminal of described first transmission circuit; Described first transmission circuit is also connected with described DSP.
Preferably, described first low noise amplification filtration module comprises the first filter circuit and amplifier circuit in low noise; Wherein,
The input of described first filter circuit is the input of described first low noise amplification filtration module, and the input of described first low noise amplification filtration module is connected with the first end of described first electronic switch; The output of described first filter circuit is connected with the input of described amplifier circuit in low noise; The output of described amplifier circuit in low noise is the output of described first low noise amplification filtration module, and the output of described first low noise amplification filtration module is connected with the receiving terminal of described first transmission circuit.
Preferably, described first filter circuit comprises the first electric capacity, the second electric capacity, the 3rd electric capacity, the 4th electric capacity, the first inductance and the first wave filter; Wherein,
The first end of described first electric capacity is the input connection of described first low noise amplification filtration module, the input of described first low noise amplification filtration module is connected with the first end of described first electronic switch, and the second end of described first electric capacity is connected with the first end of described second electric capacity and the signal input pin of described first wave filter respectively; Second end ground connection of described second electric capacity; The signal output pin of described first wave filter is connected with the first end of described 4th electric capacity and the first end of described first inductance respectively through described 3rd electric capacity; The lower margin ground connection of described first wave filter; Second end ground connection of described 4th electric capacity; Second end of described first inductance is connected with described amplifier circuit in low noise.
Preferably, described amplifier circuit in low noise comprises the first operating voltage input, the 5th electric capacity, the 6th electric capacity, the first resistance, the second inductance and low-noise amplifier; Wherein,
The enable pin of described low-noise amplifier is connected with the first end of described 5th electric capacity and the first end of described first resistance respectively; Second end ground connection of described 5th electric capacity; Second end of described first resistance is connected with described first operating voltage input; The lower margin ground connection of described low-noise amplifier; The signal input pin of described low-noise amplifier is connected with the second end of described first inductance; The supply pin of described low-noise amplifier is connected with the first end of described first operating voltage input and described 6th electric capacity respectively through described second inductance; Second end ground connection of described 6th electric capacity; The signal output pin of described low-noise amplifier is connected with the receiving terminal of described first transmission circuit.
Preferably, described first power amplification filtration module comprises power amplifier circuit and the second filter circuit; Wherein,
The input of described power amplifier circuit is the input of described first power amplification filtration module, and the input of described first power amplification filtration module is connected with the transmitting terminal of described first transmission circuit; The output of described power amplifier circuit is connected with the input of described second filter circuit; The output of described second filter circuit is the output of described first power amplification filtration module, and the output of described first power amplification filtration module is connected with the second end of described first electronic switch.
Preferably, described power amplifier circuit comprises the second operating voltage input, the 7th electric capacity, the 8th electric capacity, the 9th electric capacity, the tenth electric capacity, the 11 electric capacity, the 12 electric capacity, the first electrochemical capacitor, the second resistance, the 3rd resistance, the 4th resistance, the 3rd inductance, power amplifier and reference voltage input terminal; Wherein,
The signal input pin of described power amplifier is connected with the first end of described 3rd resistance and the first end of described 4th resistance respectively through described 7th electric capacity; Second end ground connection of described 4th resistance; Second end of described 3rd resistance is the input of described first power amplification filtration module, the input of described first power amplification filtration module is connected with the transmitting terminal of described first transmission circuit, and the second end of described 3rd resistance is also through described second resistance eutral grounding; The supply pin of described power amplifier is connected with the first end of the first end of described 11 electric capacity, the positive pole of described first electrochemical capacitor and described 3rd inductance respectively; Second end of described 11 electric capacity and the equal ground connection of negative pole of described first electrochemical capacitor; Second end of described 3rd inductance is connected with described second operating voltage input; Described second operating voltage input is also connected with the first end of described 9th electric capacity and the first end of the tenth electric capacity respectively; Second end of described 9th electric capacity and the equal ground connection of the second end of described tenth electric capacity; The supply pin of described power amplifier is also through described 12 capacity earth; The reference voltage input pin of described power amplifier is connected with described reference voltage input terminal; The lower margin ground connection of described power amplifier; The signal output pin of described power amplifier is connected with described second filter circuit.
Preferably, described second filter circuit comprises the 5th resistance, the 13 electric capacity, the 14 electric capacity and the second wave filter; Wherein,
The first end of described 5th resistance is connected with the signal output pin of described power amplifier and the first end of described 13 electric capacity respectively, and the second end of described 5th resistance is connected with the signal input pin of described second wave filter; Second end ground connection of described 13 electric capacity; The signal output pin of described second wave filter is connected with the second end of described first electronic switch through described 14 electric capacity; The lower margin ground connection of described second wave filter.
Preferably, described wireless repeater also comprises the first control circuit for controlling described first low noise amplification filtration module work and the second control circuit for controlling described first power amplification filtration module work; Described first control circuit is connected with the control end of described first low noise amplification filtration module, and described second control circuit is connected with the control end of described first power amplification filtration module.
Preferably, described wireless repeater also comprises the second transmission circuit unit being controlled transmitting-receiving work by described DSP; The circuit structure of described second transmission circuit unit is identical with described first transmission circuit unit.
In addition, for achieving the above object, the utility model also provides a kind of wireless communication system, and described wireless communication system comprises wireless repeater; Described wireless repeater comprises the first transmission circuit unit and the DSP for controlling described first transmission circuit cell operation; Described first transmission circuit unit comprises the first antenna, the first electronic switch, the first transmission circuit, carries out filter amplifying processing and the signal after filter amplifying processing exported to the first low noise amplification filtration module of the receiving terminal of described first transmission circuit and be used for carrying out the signal of the transmitting terminal of described first transmission circuit the first power amplification filtration module of filter amplifying processing for the signal received described first antenna; Wherein,
The common port of described first electronic switch is connected with described first antenna, the first end of described first electronic switch is connected with the input of described first low noise amplification filtration module, second end of described first electronic switch is connected with the output of described first power amplification filtration module, and the control end of described first electronic switch is connected with described DSP; The output of described first low noise amplification filtration module is connected with the receiving terminal of described first transmission circuit; The input of described first power amplification filtration module is connected with the transmitting terminal of described first transmission circuit; Described first transmission circuit is also connected with described DSP.
The wireless repeater that the utility model provides, comprises the first transmission circuit unit and the DSP for controlling described first transmission circuit cell operation; Described first transmission circuit unit comprises the first antenna, the first electronic switch, the first transmission circuit, carries out filter amplifying processing and the signal after filter amplifying processing exported to the first low noise amplification filtration module of the receiving terminal of described first transmission circuit and be used for carrying out the signal of the transmitting terminal of described first transmission circuit the first power amplification filtration module of filter amplifying processing for the signal received described first antenna; The common port of described first electronic switch is connected with described first antenna, the first end of described first electronic switch is connected with the input of described first low noise amplification filtration module, second end of described first electronic switch is connected with the output of described first power amplification filtration module, and the control end of described first electronic switch is connected with described DSP; The output of described first low noise amplification filtration module is connected with the receiving terminal of described first transmission circuit; The input of described first power amplification filtration module is connected with the transmitting terminal of described first transmission circuit; Described first transmission circuit is also connected with described DSP.This wireless repeater that the utility model provides, owing to being provided with described first low noise amplification filtration module between the first end and the receiving terminal of described first transmission circuit of described first electronic switch, and described first power amplification filtration module is provided with between the transmitting terminal and the second end of described first electronic switch of described first transmission circuit, thus more weak signal can be carried out filter and amplification to reception signal terminal, thus add the communication distance between reception signal terminal and signal transmitting terminal; Further, the utility model also has circuit structure advantage that is simple and that easily realize.
Accompanying drawing explanation
Fig. 1 is the modular structure schematic diagram of the utility model wireless repeater one embodiment;
Fig. 2 is the electrical block diagram of the first low noise amplification filtration module in Fig. 1;
Fig. 3 is the electrical block diagram of the first power amplification filtration module in Fig. 1;
The realization of the utility model object, functional characteristics and advantage will in conjunction with the embodiments, are described further with reference to accompanying drawing.
Detailed description of the invention
Should be appreciated that specific embodiment described herein only in order to explain the utility model, and be not used in restriction the utility model.
The utility model provides a kind of wireless repeater.
With reference to the modular structure schematic diagram that Fig. 1, Fig. 1 are the utility model wireless repeater one embodiments.
In the present embodiment, this wireless repeater comprises the first transmission circuit unit 100 and receives and dispatches the DSP 300 of work for controlling described first transmission circuit unit 100.
Wherein, described first transmission circuit unit 100 comprises the first antenna 101, first electronic switch 102, first low noise amplification filtration module 103, first power amplification filtration module 104 and the first transmission circuit 105.
In the present embodiment, described first low noise amplification filtration module 103, the signal for receiving described first antenna 101 carries out filter amplifying processing and the signal after filter amplifying processing is exported to the receiving terminal of described first transmission circuit 105;
Described first power amplification filtration module 104, the signal for the transmitting terminal to described first transmission circuit 105 carries out filter amplifying processing.
Particularly, in the present embodiment, the common port of described first electronic switch 102 is connected with described first antenna 101, the first end of described first electronic switch 102 is connected with the input of described first low noise amplification filtration module 103, second end of described first electronic switch 102 is connected with the output of described first power amplification filtration module 104, and the control end of described first electronic switch 102 is connected with described DSP 300; The output of described first low noise amplification filtration module 103 is connected with the receiving terminal of described first transmission circuit 105; The input of described first power amplification filtration module 104 is connected with the transmitting terminal of described first transmission circuit 105; Described first transmission circuit 105 is also connected with described DSP.
In the present embodiment, described first antenna 101 is directional aerial, and the orientable transmitting/receiving signal of described first antenna 101, directional transmissions/Received signal strength can increase the transmission range of the present embodiment wireless repeater.
In the present embodiment, described first electronic switch 102 is single-pole double-throw switch (SPDT), sends for the Signal reception and signal switching the present embodiment wireless repeater.The connection control of the output of the connection of the first end of described first electronic switch 102 and the input of described first low noise amplification filtration module 103 and the second end of described first electronic switch 102 and described first power amplification filtration module 104 controls by described DSP 300.Particularly, when the present embodiment wireless repeater carries out Signal reception work, described DSP 300 exports the control end of the first switch controlling signal to described first electronic switch 102, and the first end controlling described first electronic switch 102 is connected with the input of described first low noise amplification filtration module 103; When the present embodiment wireless repeater carries out signal transmission work, described DSP 300 exports the control end that second switch controls signal to described first electronic switch 102, and the second end controlling described first electronic switch 102 is connected with the output of described first power amplification filtration module 104.
Further, the present embodiment wireless repeater also comprises the first control circuit 400 for controlling described first low noise amplification filtration module 103 work and the second control circuit 500 for controlling described first power amplification filtration module 104 work.Wherein, described first control circuit 400 is connected with the control end of described first low noise amplification filtration module 103, and described second control circuit 500 is connected with the control end of described first power amplification filtration module 104.Namely in the present embodiment, the work of described first low noise amplification filtration module 103 and described first power amplification filtration module 104 controls by hardware, thus the debugging efforts of described first low noise amplification filtration module 103 can be facilitated, described first low noise amplification filtration module 103 and described first power amplification filtration module 104 is made not to need to be controlled by described DSP300, thus the I/O mouth saving described DSP 300 uses, and reduce software algorithm, improve debugging efficiency.
Further, the present embodiment wireless repeater also comprises the second transmission circuit unit 200 being controlled transmitting-receiving work by described DSP 300, and described second transmission circuit unit 200 comprises the second antenna 201, second electronic switch 202, second low noise amplification filtration module 203, second power amplification filtration module 204 and the second transmission circuit 205.In the present embodiment, described second low noise amplification filtration module 203, the signal for receiving described second antenna 201 carries out filter amplifying processing and the signal after filter amplifying processing is exported to the receiving terminal of described second transmission circuit 205; Described second power amplification filtration module 104, the signal for the transmitting terminal to described second transmission circuit 105 carries out filter amplifying processing.
Particularly, the common port of described second electronic switch 202 is connected with described second antenna 201, second end of described second electronic switch 202 is connected with the input of described second low noise amplification filtration module 203, second end of described second electronic switch 202 is connected with the output of described second power amplification filtration module 204, and the control end of described second electronic switch 202 is connected with described DSP 300; The output of described second low noise amplification filtration module 203 is connected with the receiving terminal of described second transmission circuit 205; The input of described second power amplification filtration module 204 is connected with the transmitting terminal of described second transmission circuit 205; Described second transmission circuit 205 is also connected with described DSP 300; The control end of described second low noise amplification filtration module 203 is connected with described first control circuit 400; The control end of described second power amplification filtration module 204 is connected with described second control circuit 500.
In addition, it should be noted that, the two-way transmission circuit unit (i.e. the first transmission circuit unit 100 second transmission circuit unit 200) of the present embodiment wireless repeater carries out receiving/signaling respectively, under the condition of work of same antenna, the bandwidth of antenna can be increased, thus add the operating efficiency of the present embodiment wireless repeater, and two-way transmitting-receiving can increase the stability of the present embodiment wireless repeater.
The operation principle of the present embodiment wireless repeater specifically describes as follows: when described first antenna 101 receives external signal (as when receiving the wifi signal of Airborne Camera), the first end that described DSP 300 controls described first electronic switch 102 is connected with the input of described first low noise amplification filtration module 103, the signal that described first antenna 101 receives carries out filtering through described first low noise amplification filtration module 103 and exports the receiving terminal of described first transmission circuit 105 after amplifying process to, then, described DSP300 processes useful signal (as audio-video signal), useful signal after process is sent to the transmitting terminal of described first transmission circuit 105 by described DSP 300 again, subsequently, described first power amplification filtration module 104 signal of the transmitting terminal of described first transmission circuit 105 is carried out amplifying again and filtering process (now, the second end that described DSP 300 controls described first electronic switch 102 is connected with the output of described first power amplification filtration module 104), signal after described first power amplification filtration module 104 amplification filtering process sends through described first antenna 101 again, finally, reception signal terminal terminal (as mobile phone or remote controller) receive through as described in the first power amplification filtration module 104 amplify and this signal after filtering process.This wireless repeater that the present embodiment provides, owing to being provided with described first low noise amplification filtration module 103 between the first end and the receiving terminal of described first transmission circuit 105 of described first electronic switch 102, and described first power amplification filtration module 104 is provided with between the transmitting terminal and the second end of described first electronic switch 102 of described first transmission circuit 105, thus more weak signal can be carried out filter and amplification to reception signal terminal, thus add the communication distance between reception signal terminal and signal transmitting terminal.
With reference to the electrical block diagram that Fig. 2, Fig. 2 are the first low noise amplification filtration modules in Fig. 1.In the present embodiment, described first low noise amplification filtration module 103 comprises the first filter circuit 1031 and amplifier circuit in low noise 1032.
Wherein, the input of described first filter circuit 1031 is the input of described first low noise amplification filtration module 103, and the input of described first low noise amplification filtration module 103 is connected with the first end of described first electronic switch 102; The output of described first filter circuit 1031 is connected with the input of described amplifier circuit in low noise 1032; The output of described amplifier circuit in low noise 1032 is the output of described first low noise amplification filtration module 103, and the output of described first low noise amplification filtration module 103 is connected with the receiving terminal of described first transmission circuit 105.
Particularly, in the present embodiment, described first filter circuit 1031 comprises the first electric capacity C1, the second electric capacity C2, the 3rd electric capacity C3, the 4th electric capacity C4, the first inductance L 1 and the first wave filter F1.Wherein, the first end of described first electric capacity C1 is the input IN1 of described first low noise amplification filtration module, the input IN1 of described first low noise amplification filtration module is connected with the first end of described first electronic switch 102, and second end of described first electric capacity C1 is connected with the first end of described second electric capacity C2 and the signal input pin IN of described first wave filter F1 respectively; The second end ground connection of described second electric capacity C2; The signal output pin OUT of described first wave filter F1 is connected with the first end of described 4th electric capacity C4 and the first end of described first inductance L 1 respectively through described 3rd electric capacity C3; The lower margin GND ground connection of described first wave filter F1; The second end ground connection of described 4th electric capacity C4; Second end of described first inductance L 1 is connected with described amplifier circuit in low noise 1032;
Described amplifier circuit in low noise 1032 comprises the first operating voltage input VDD1, the 5th electric capacity C5, the 6th electric capacity C6, the first resistance R1, the second inductance L 2 and low-noise amplifier U1.Wherein, the enable pin V_ENABLE of described low-noise amplifier U1 is connected with the first end of described 5th electric capacity C5 and the first end of described first resistance R1 respectively; The second end ground connection of described 5th electric capacity C5; Second end of described first resistance R1 is connected with described first operating voltage input VDD1; The lower margin GND ground connection of described low-noise amplifier U1; The signal input pin RF_IN of described low-noise amplifier U1 is connected with the second end of the first inductance L 1 in described first filter circuit 1031; The supply pin VCC of described low-noise amplifier U1 is connected with the first end of described first operating voltage input VDD1 and described 6th electric capacity C6 respectively through described second inductance L 2; The second end ground connection of described 6th electric capacity C6; The signal output pin RF_OUT of described low-noise amplifier U1 is the output OUT1 of described first low noise amplification filtration module 103, and the output OUT1 of described first low noise amplification filtration module 103 is connected with the receiving terminal of described first transmission circuit 105.In the present embodiment, the voltage of described first operating voltage input VDD2 is 3.3V.
With reference to the electrical block diagram that Fig. 3, Fig. 3 are the first power amplification filtration modules in Fig. 1.In the present embodiment, described first power amplification filtration module 104 comprises power amplifier circuit 1041 and the second filter circuit 1042.
Wherein, the input of described power amplifier circuit 1041 is the input of described first power amplification filtration module 104, and the input of described first power amplification filtration module 104 is connected with the transmitting terminal of described first transmission circuit 105; The output of described power amplifier circuit 1041 is connected with the input of described second filter circuit 1042; The output of described second filter circuit 1042 is the output of described first power amplification filtration module 104, and the output of described first power amplification filtration module 104 is connected with the second end of described first electronic switch 102.
Particularly, in the present embodiment, described power amplifier circuit 1041 comprises the second operating voltage input VDD2, the 7th electric capacity C7, the 8th electric capacity C8, the 9th electric capacity C9, the tenth electric capacity C10, the 11 electric capacity C11, the 12 electric capacity C12, the first electrochemical capacitor E1, the second resistance R2, the 3rd resistance R3, the 4th resistance R4, the 3rd inductance L 3, power amplifier U2 and reference voltage input terminal Vref.Wherein, the signal input pin RF IN of described power amplifier U2 is connected with the first end of described 3rd resistance R3 and the first end of described 4th resistance R4 respectively through described 7th electric capacity C7; The second end ground connection of described 4th resistance R4; Second end of described 3rd resistance R3 is the input IN2 of described first power amplification filtration module 104, the input IN2 of described first power amplification filtration module 104 is connected with the transmitting terminal of described first transmission circuit 105, and second end of described 3rd resistance R3 is also through described second resistance R2 ground connection; The supply pin VCC of described power amplifier U2 is connected with the first end of the first end of described 11 electric capacity C11, the positive pole of described first electrochemical capacitor E1 and described 3rd inductance L 3 respectively; Second end of described 11 electric capacity C11 and the equal ground connection of negative pole of described first electrochemical capacitor E1; Second end of described 3rd inductance L 3 is connected with described second operating voltage input VDD2; Described second operating voltage input VDD2 is also connected with the first end of described 9th electric capacity C9 and the first end of the tenth electric capacity C10 respectively; Second end of described 9th electric capacity C9 and the equal ground connection of the second end of described tenth electric capacity C10; The supply pin VCC of described power amplifier U2 is also through described 12 electric capacity C12 ground connection; The reference voltage input pin V REF of described power amplifier U2 is connected with described reference voltage input terminal Vref; The lower margin GND ground connection of described power amplifier U2; The signal output pin RF OUT of described power amplifier U2 is connected with described second filter circuit 1042.In the present embodiment, the voltage of described reference voltage input terminal Vref is 2V to 2.8V, and the voltage of described second operating voltage input VDD2 is 3.3V.
In the present embodiment, described second filter circuit 1042 comprises the 5th resistance R5, the 13 electric capacity C13, the 14 electric capacity C14 and the second wave filter F2.Wherein, the first end of described 5th resistance R5 is connected with the signal output pin RF OUT of the power amplifier U2 in described power amplifier circuit 1041 and the first end of described 13 electric capacity C13 respectively, and second end of described 5th resistance R5 is connected with the signal input pin IN of described second wave filter F2; The second end ground connection of described 13 electric capacity C13; The signal output pin OUT of described second wave filter F2 is connected with the first end of described 14 electric capacity C14; Second end of described 14 electric capacity C14 is the output OUT2 of described first power amplification filtration module 104, and the output OUT2 of described first power amplification filtration module 104 is connected with the second end of described first electronic switch 102; The lower margin GND ground connection of described second wave filter F2.
In the present embodiment, the circuit structure of described second low noise amplification filtration module 203 is identical with the circuit structure of described first low noise amplification filtration module 103, the circuit structure of described second power amplification filtration module 204 is identical with the circuit structure of described first power amplification filtration module 104, repeats no more herein.
The wireless repeater that the present embodiment provides, comprises the first transmission circuit unit and the DSP for controlling described first transmission circuit cell operation; Described first transmission circuit unit comprises the first antenna, the first electronic switch, the first transmission circuit, carries out filter amplifying processing and the signal after filter amplifying processing exported to the first low noise amplification filtration module of the receiving terminal of described first transmission circuit and be used for carrying out the signal of the transmitting terminal of described first transmission circuit the first power amplification filtration module of filter amplifying processing for the signal received described first antenna; The common port of described first electronic switch is connected with described first antenna, the first end of described first electronic switch is connected with the input of described first low noise amplification filtration module, second end of described first electronic switch is connected with the output of described first power amplification filtration module, and the control end of described first electronic switch is connected with described DSP; The output of described first low noise amplification filtration module is connected with the receiving terminal of described first transmission circuit; The input of described first power amplification filtration module is connected with the transmitting terminal of described first transmission circuit; Described first transmission circuit is also connected with described DSP.This wireless repeater that the present embodiment provides, owing to being provided with described first low noise amplification filtration module between the first end and the receiving terminal of described first transmission circuit of described first electronic switch, and described first power amplification filtration module is provided with between the transmitting terminal and the second end of described first electronic switch of described first transmission circuit, thus more weak signal can be carried out filter and amplification to reception signal terminal, thus add the communication distance between reception signal terminal and signal transmitting terminal; Further, the present embodiment also has circuit structure advantage that is simple and that easily realize.
The present invention also provides a kind of wireless communication system, and this wireless communication system comprises wireless repeater, and circuit structure and the operation principle thereof of this wireless repeater can refer to above-described embodiment, do not repeat them here.Naturally, the wireless communication system due to the present embodiment have employed the technical scheme of above-mentioned wireless repeater, and therefore this wireless communication system has all beneficial effects of above-mentioned wireless repeater.
Claims (10)
1. a wireless repeater, is characterized in that, comprises the first transmission circuit unit and the DSP for controlling described first transmission circuit cell operation; Described first transmission circuit unit comprises the first antenna, the first electronic switch, the first transmission circuit, carries out filter amplifying processing and the signal after filter amplifying processing exported to the first low noise amplification filtration module of the receiving terminal of described first transmission circuit and be used for carrying out the signal of the transmitting terminal of described first transmission circuit the first power amplification filtration module of filter amplifying processing for the signal received described first antenna; Wherein,
The common port of described first electronic switch is connected with described first antenna, the first end of described first electronic switch is connected with the input of described first low noise amplification filtration module, second end of described first electronic switch is connected with the output of described first power amplification filtration module, and the control end of described first electronic switch is connected with described DSP; The output of described first low noise amplification filtration module is connected with the receiving terminal of described first transmission circuit; The input of described first power amplification filtration module is connected with the transmitting terminal of described first transmission circuit; Described first transmission circuit is also connected with described DSP.
2. wireless repeater as claimed in claim 1, it is characterized in that, described first low noise amplification filtration module comprises the first filter circuit and amplifier circuit in low noise; Wherein,
The input of described first filter circuit is the input of described first low noise amplification filtration module, and the input of described first low noise amplification filtration module is connected with the first end of described first electronic switch; The output of described first filter circuit is connected with the input of described amplifier circuit in low noise; The output of described amplifier circuit in low noise is the output of described first low noise amplification filtration module, and the output of described first low noise amplification filtration module is connected with the receiving terminal of described first transmission circuit.
3. wireless repeater as claimed in claim 2, it is characterized in that, described first filter circuit comprises the first electric capacity, the second electric capacity, the 3rd electric capacity, the 4th electric capacity, the first inductance and the first wave filter; Wherein,
The first end of described first electric capacity is the input of described first low noise amplification filtration module, the input of described first low noise amplification filtration module is connected with the first end of described first electronic switch, and the second end of described first electric capacity is connected with the first end of described second electric capacity and the signal input pin of described first wave filter respectively; Second end ground connection of described second electric capacity; The signal output pin of described first wave filter is connected with the first end of described 4th electric capacity and the first end of described first inductance respectively through described 3rd electric capacity; The lower margin ground connection of described first wave filter; Second end ground connection of described 4th electric capacity; Second end of described first inductance is connected with described amplifier circuit in low noise.
4. wireless repeater as claimed in claim 3, it is characterized in that, described amplifier circuit in low noise comprises the first operating voltage input, the 5th electric capacity, the 6th electric capacity, the first resistance, the second inductance and low-noise amplifier; Wherein,
The enable pin of described low-noise amplifier is connected with the first end of described 5th electric capacity and the first end of described first resistance respectively; Second end ground connection of described 5th electric capacity; Second end of described first resistance is connected with described first operating voltage input; The lower margin ground connection of described low-noise amplifier; The signal input pin of described low-noise amplifier is connected with the second end of described first inductance; The supply pin of described low-noise amplifier is connected with the first end of described first operating voltage input and described 6th electric capacity respectively through described second inductance; Second end ground connection of described 6th electric capacity; The signal output pin of described low-noise amplifier is connected with the receiving terminal of described first transmission circuit.
5. wireless repeater as claimed in claim 1, it is characterized in that, described first power amplification filtration module comprises power amplifier circuit and the second filter circuit; Wherein,
The input of described power amplifier circuit is the input of described first power amplification filtration module, and the input of described first power amplification filtration module is connected with the transmitting terminal of described first transmission circuit; The output of described power amplifier circuit is connected with the input of described second filter circuit; The output of described second filter circuit is the output of described first power amplification filtration module, and the output of described first power amplification filtration module is connected with the second end of described first electronic switch.
6. wireless repeater as claimed in claim 5, it is characterized in that, described power amplifier circuit comprises the second operating voltage input, the 7th electric capacity, the 8th electric capacity, the 9th electric capacity, the tenth electric capacity, the 11 electric capacity, the 12 electric capacity, the first electrochemical capacitor, the second resistance, the 3rd resistance, the 4th resistance, the 3rd inductance, power amplifier and reference voltage input terminal; Wherein,
The signal input pin of described power amplifier is connected with the first end of described 3rd resistance and the first end of described 4th resistance respectively through described 7th electric capacity; Second end ground connection of described 4th resistance; Second end of described 3rd resistance is the input of described first power amplification filtration module, the input of described first power amplification filtration module is connected with the transmitting terminal of described first transmission circuit, and the second end of described 3rd resistance is also through described second resistance eutral grounding; The supply pin of described power amplifier is connected with the first end of the first end of described 11 electric capacity, the positive pole of described first electrochemical capacitor and described 3rd inductance respectively; Second end of described 11 electric capacity and the equal ground connection of negative pole of described first electrochemical capacitor; Second end of described 3rd inductance is connected with described second operating voltage input; Described second operating voltage input is also connected with the first end of described 9th electric capacity and the first end of the tenth electric capacity respectively; Second end of described 9th electric capacity and the equal ground connection of the second end of described tenth electric capacity; The supply pin of described power amplifier is also through described 12 capacity earth; The reference voltage input pin of described power amplifier is connected with described reference voltage input terminal; The lower margin ground connection of described power amplifier; The signal output pin of described power amplifier is connected with described second filter circuit.
7. wireless repeater as claimed in claim 6, it is characterized in that, described second filter circuit comprises the 5th resistance, the 13 electric capacity, the 14 electric capacity and the second wave filter; Wherein,
The first end of described 5th resistance is connected with the signal output pin of described power amplifier and the first end of described 13 electric capacity respectively, and the second end of described 5th resistance is connected with the signal input pin of described second wave filter; Second end ground connection of described 13 electric capacity; The signal output pin of described second wave filter is connected with the second end of described first electronic switch through described 14 electric capacity; The lower margin ground connection of described second wave filter.
8. the wireless repeater as described in any one of claim 1 to 7, it is characterized in that, described wireless repeater also comprises the first control circuit for controlling described first low noise amplification filtration module work and the second control circuit for controlling described first power amplification filtration module work; Described first control circuit is connected with the control end of described first low noise amplification filtration module, and described second control circuit is connected with the control end of described first power amplification filtration module.
9. wireless repeater as claimed in claim 8, is characterized in that, described wireless repeater also comprises the second transmission circuit unit being controlled transmitting-receiving work by described DSP; The circuit structure of described second transmission circuit unit is identical with described first transmission circuit unit.
10. a wireless communication system, is characterized in that, comprises the wireless repeater according to any one of claim 1 to 9.
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| CN201420845499.1U CN204305019U (en) | 2014-12-25 | 2014-12-25 | Wireless repeater and wireless communication system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105678989A (en) * | 2015-12-31 | 2016-06-15 | 深圳一电航空技术有限公司 | Remote controller |
| CN106464289A (en) * | 2015-11-04 | 2017-02-22 | 深圳博芯科技股份有限公司 | A 5.8 G long-distance wireless data transmission system |
| CN107182133A (en) * | 2017-07-27 | 2017-09-19 | 惠州Tcl移动通信有限公司 | A kind of WIFI signal relay and its control method |
| CN110658562A (en) * | 2019-10-23 | 2020-01-07 | 中国工程物理研究院电子工程研究所 | Millimeter wave transceiving switch array and control method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106464289A (en) * | 2015-11-04 | 2017-02-22 | 深圳博芯科技股份有限公司 | A 5.8 G long-distance wireless data transmission system |
| CN106464289B (en) * | 2015-11-04 | 2019-07-05 | 深圳博芯科技股份有限公司 | 5.8G remote-wireless data transmission system |
| CN105678989A (en) * | 2015-12-31 | 2016-06-15 | 深圳一电航空技术有限公司 | Remote controller |
| CN105678989B (en) * | 2015-12-31 | 2021-04-20 | 深圳一电航空技术有限公司 | Remote controller |
| CN107182133A (en) * | 2017-07-27 | 2017-09-19 | 惠州Tcl移动通信有限公司 | A kind of WIFI signal relay and its control method |
| CN107182133B (en) * | 2017-07-27 | 2021-10-22 | 惠州Tcl移动通信有限公司 | WIFI signal relay device and control method thereof |
| CN110658562A (en) * | 2019-10-23 | 2020-01-07 | 中国工程物理研究院电子工程研究所 | Millimeter wave transceiving switch array and control method thereof |
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