CN207559952U - Positive preceding radio frequency signal amplification circuit - Google Patents
Positive preceding radio frequency signal amplification circuit Download PDFInfo
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- CN207559952U CN207559952U CN201721124454.5U CN201721124454U CN207559952U CN 207559952 U CN207559952 U CN 207559952U CN 201721124454 U CN201721124454 U CN 201721124454U CN 207559952 U CN207559952 U CN 207559952U
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Abstract
The utility model discloses a kind of positive preceding radio frequency signal amplification circuits, are related to amplifying circuit technical field.The rf signal amplification circuit includes：First splitter, the first radio frequency amplifier, the first distributor, the first signal detection interface, the first radio frequency power detector, electricity adjust attenuator circuit, the second radio frequency amplifier, microprocessor, manual/auto gain control circuit, the first radio frequency power detector, the second splitter, the second distributor, Current Voltage parameter collection module, temperature collection circuit, SPI communication module and three-color LED display module.The rf signal amplification circuit, which can be realized, to be amplified and adjusts to the radiofrequency signal of input, is made it undistorted during transmission and is transmitted farther distance.
Description
Technical field
The utility model is related to amplifying circuit technical field more particularly to a kind of positive preceding radio frequency signal amplification circuits.
Background technology
The working frequency of radio-frequency power amplifier is very high, but relative band is relatively narrow, and radio-frequency power amplifier generally all uses
Frequency-selective network is as load circuit.Radio-frequency power amplifier can according to the difference at current lead-through angle, be divided into first (A), second (B),
Third (C) three classes working condition.The angle of flow of class A amplifier electric current is 360 °, is amplified suitable for small-signal low-power, and Class B is put
The angle of flow of big device electric current is equal to 180 °, and the angle of flow of Class C amplifier electric current is then less than 180 °.Class B and Class C are suitable for
High power work state, the output power and efficiency of Class C working condition are highest in three kinds of working conditions.Generally conventional electricity
Road is manufactured using traditional devices, and the big stability of power consumption is poor；Attenuation and equilibrium are inconvenient using manual control mode；Level is big
It is small that special equipment test is needed to read.
Utility model content
Technical problem to be solved in the utility model be how to provide it is a kind of it is low in energy consumption, index is excellent, job stability
Positive preceding radio frequency signal amplification circuit high, signal transmission capabilities are strong.
In order to solve the above technical problems, technical solution adopted in the utility model is：A kind of forward direction preceding radio frequency signal
Amplifying circuit, it is characterised in that：Including the first splitter, the signal input part of the first splitter is the radio frequency of the amplifying circuit
Signal input part, the signal output end of first splitter are divided into two-way, the first via and the input terminal of the first radio frequency amplifier
Connection, the second tunnel connect with the input terminal of the first distributor, and first splitter by fraction radiofrequency signal for assigning to the
One distributor, remaining most of radiofrequency signal assign to the first radio frequency amplifier, and first radio frequency amplifier is used to believe radio frequency
Number amplified for the first time；The output terminal of first distributor is divided into two-way, and the first via is connect with the first signal detection interface, the second tunnel
It is connect after the first radio frequency power detector with the signal input part of microprocessor, first distributor is penetrated for evenly distributing
On frequency signal to the first signal detection interface and the first radio frequency power detector, first radio frequency power detector is used to detect
RF signal power simultaneously feeds back to microprocessor, and the first signal detection interface believes radio frequency for being connect with external equipment
It number is detected；
The output terminal of first radio frequency amplifier adjusts the input terminal of attenuator circuit to connect with electricity, and electricity adjusts the output terminal of attenuator circuit
The input terminal for adjusting equalizing circuit with electricity is connect, and the output terminal of microprocessor is adjusted through manually/automatic gain control circuit with electricity decays
The control signal input connection of circuit, the electricity adjust attenuator circuit to be obtained for being adjusted by manual/auto gain control circuit
To suitable radio frequency level, the electricity adjusts equalizing circuit for compensating the level difference of the high low side of level, the manual/auto gain
Control circuit is controlled by microprocessor, and because input signal changes, attenuator circuit is adjusted using its adjusting electricity；
The electricity adjusts the output terminal of equalizing circuit to be connect with the input terminal of the second radio frequency amplifier, the second radio frequency amplifier
Output terminal is connect with the input terminal of the second splitter, and the output terminal of the second splitter is divided into two-way, and the first via is the amplification electricity
The RF signal output on road, the second tunnel are connect with the input terminal of the second distributor, and the output terminal of the second distributor is divided into two-way,
The first via is connected through the signal input part of the second radio frequency power detector and microprocessor, and interface is detected in the second tunnel with second signal
Connection, second splitter are used to fraction radiofrequency signal assigning to the second distributor, remaining most of radiofrequency signal carries out
Output, second distributor detect interface and the second radio frequency power detector, institute for evenly distributing signal to second signal
The second radio frequency power detector is stated for detecting radio-frequency power, feeds back to microprocessor, the second signal detection interface is used for
It is connect with external equipment, radiofrequency signal is detected.
Further technical solution is：The rf signal amplification circuit further includes Current Voltage parameter collection module,
The Current Voltage parameter collection module is connect with the signal input part of the microprocessor, is put for acquiring the radiofrequency signal
The electric current and information of voltage of big circuit.
Further technical solution is：The rf signal amplification circuit further includes temperature collection circuit, the temperature
Acquisition Circuit is connect with the signal input part of the microprocessor, for acquiring the temperature of rf signal amplification circuit letter
Breath.
Further technical solution is：The rf signal amplification circuit further includes SPI communication module, and the SPI leads to
Letter module is bi-directionally connected with the microprocessor, for being connect with peripheral equipment, is realized to the rf signal amplification circuit
Remotely-or locally control.
Further technical solution is：The rf signal amplification circuit further includes three-color LED display module, and described
The signal output end connection of microprocessor, for showing and the relevant parameter information of the rf signal amplification circuit.
It is using advantageous effect caused by above-mentioned technical proposal：The rf signal amplification circuit includes first, the
Two power amplifiers, electricity adjust attenuator circuit, electricity to adjust equalizing circuit, first and second radio frequency power detectors etc., and circuit is using most
New MMIC designs, it is low in energy consumption, index is excellent, job stability is high, signal transmission capabilities are strong；Attenuation, equilibrium pass through microprocessor
It is controlled, precisely, conveniently；Radio frequency is shown by radio frequency power detector input microprocessor, then by microprocessor instruction
The size of output level, it is easy to operate；Microprocessor also provides Current Voltage parameter, temperature information, working condition, local or remote
The information collections such as process control and display function.
Description of the drawings
The utility model is described in further detail with reference to the accompanying drawings and detailed description.
Fig. 1 is the functional block diagram of rf signal amplification circuit described in the utility model embodiment；
Wherein：1st, the first splitter 2, the first radio frequency amplifier 3, the first distributor 4, the first signal detection interface 5, second
Radio frequency amplifier 6, the second splitter 7, the second distributor 8, second signal detection interface.
Specific embodiment
With reference to the attached drawing in the utility model embodiment, the technical scheme in the embodiment of the utility model is carried out clear
Chu is fully described by, it is clear that described embodiment is only the part of the embodiment rather than whole of the utility model
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are without making creative work
All other embodiments obtained shall fall within the protection scope of the present invention.
Many details are elaborated in the following description in order to fully understand the utility model, but this practicality is new
Type can also be implemented using other different from other manner described here, and those skilled in the art can be without prejudice to this reality
With doing similar popularization in the case of novel intension, therefore the utility model is not limited by following public specific embodiment.
As shown in Figure 1, the utility model embodiment discloses a kind of positive preceding radio frequency signal amplification circuit, including first
Splitter 1, the signal input part of the first splitter 1 are the RF signal input end of the amplifying circuit, first splitter 1
Signal output end be divided into two-way, the first via is connect with the input terminal of the first radio frequency amplifier 2, the second tunnel and the first distributor 3
Input terminal connection, first splitter 1 is used to fraction radiofrequency signal assigning to the first distributor 3, remaining major part is penetrated
Frequency signal assigns to the first radio frequency amplifier 2, and first radio frequency amplifier 2 is used to amplify radiofrequency signal for the first time；First
The output terminal of distributor 3 is divided into two-way, and the first via is connect with the first signal detection interface 4, second tunnel the first radio-frequency power inspection
It is connect after surveying device with the signal input part of microprocessor, first distributor 3 is believed for evenly distributing radiofrequency signal to first
On number detection 4 and first radio frequency power detector of interface, first radio frequency power detector is for detecting RF signal power
And microprocessor is fed back to, the first signal detection interface 4 is detected radiofrequency signal for being connect with external equipment；
The output terminal of first radio frequency amplifier 2 adjusts the input terminal of attenuator circuit to connect with electricity, and electricity adjusts the output of attenuator circuit
It holds and the input terminal of equalizing circuit is adjusted to connect with electricity, the output terminal of microprocessor declines through manually/automatic gain control circuit and electricity tune
The control signal input connection on powered down road, the electricity adjust attenuator circuit for being adjusted by manual/auto gain control circuit,
Suitable radio frequency level is obtained, the electricity adjusts equalizing circuit for compensating the level difference of the high low side of level, the manual/auto increasing
Beneficial control circuit is controlled by microprocessor, and because input signal changes, attenuator circuit is adjusted using its adjusting electricity；
The electricity adjusts the output terminal of equalizing circuit to be connect with the input terminal of the second radio frequency amplifier 5, the second radio frequency amplifier 5
Output terminal connect with the input terminal of the second splitter 6, the output terminal of the second splitter 6 is divided into two-way, and the first via is put to be described
The RF signal output of big circuit, the second tunnel are connect with the input terminal of the second distributor 7, the output terminal point of the second distributor 7
For two-way, the first via is connected through the signal input part of the second radio frequency power detector and microprocessor, the second tunnel and second signal
Detection interface 8 connects, and second splitter 6 is used to fraction radiofrequency signal assigning to the second distributor 7, remaining major part is penetrated
Frequency signal is exported, and second distributor 7 detects 8 and second radio frequency work(of interface for evenly distributing signal to second signal
Rate detector, second radio frequency power detector feed back to microprocessor, the second signal inspection for detecting radio-frequency power
Interface is surveyed for being connect with external equipment, radiofrequency signal is detected.
Further, the rf signal amplification circuit further includes Current Voltage parameter collection module, the Current Voltage
Parameter collection module is connect with the signal input part of the microprocessor, for acquiring the electric current of the rf signal amplification circuit
And information of voltage.
Further, the rf signal amplification circuit further includes temperature collection circuit, the temperature collection circuit and institute
The signal input part connection of microprocessor is stated, for acquiring the temperature information of the rf signal amplification circuit.
Further, the rf signal amplification circuit further includes SPI communication module, the SPI communication module with it is described
Microprocessor is bi-directionally connected, and for being connect with peripheral equipment, realizes the remotely-or locally control to the rf signal amplification circuit
System.
Further, the rf signal amplification circuit further includes three-color LED display module, the letter with the microprocessor
Number output terminal connection, for showing and the relevant parameter information of the rf signal amplification circuit.
The signal amplification circuit is used for the amplification and adjusting of radiofrequency signal, operation principle：After radiofrequency signal input, through fixed
To coupler, preceding radio frequency amplification, electricity tune is decayed, electricity adjusts balanced, postposition radio frequency to amplify, radio frequency letter is exported after directional coupler
Number.Directional coupler branch connection distributor wherein after radiofrequency signal input, detects signal, another way for testing mouth all the way
Through radio frequency power detector input microprocessor, then the size by microprocessor instruction display radio frequency incoming level；Electricity is adjusted equal
The difference of weighing apparatus control signal height frequency, compensates the different loss values generated by coaxial cable height frequency；Electricity adjusts adjustable attenuation
Signal attenuation (may be configured as MGC or AGC state)；MGC/AGC is controlled for manual gain and automatic growth control, automatic gain
Control function is changed in a certain range in input signal, and the radiofrequency signal size detected by microprocessor automatically controls electricity
Attenuation is adjusted to go to realize that radio frequency output signal remains unchanged；The amplified directional coupler branch connection distributor of postposition, is used all the way
In test mouth detection signal, another way is through radio frequency power detector input microprocessor, then is shown and penetrated by microprocessor instruction
The size of frequency output level.
Microprocessor also provides the information collections such as Current Voltage parameter, temperature information, working condition, Local or Remote control
And display function, it is easy to use.
Claims (5)
1. a kind of forward direction preceding radio frequency signal amplification circuit, it is characterised in that：Including the first splitter, the signal of the first splitter
Input terminal is the RF signal input end of the amplifying circuit, and the signal output end of first splitter is divided into two-way, first
Road is connect with the input terminal of the first radio frequency amplifier, and the second tunnel is connect with the input terminal of the first distributor, first splitter
For fraction radiofrequency signal to be assigned to the first distributor, remaining most of radiofrequency signal assigns to the first radio frequency amplifier, described
First radio frequency amplifier is used to amplify radiofrequency signal for the first time；The output terminal of first distributor is divided into two-way, the first via with
First signal detection interface connects, and the second tunnel is connect after the first radio frequency power detector with the signal input part of microprocessor,
First distributor is used to evenly distribute radiofrequency signal to the first signal detection interface and the first radio frequency power detector, institute
The first radio frequency power detector is stated for detecting RF signal power and feeding back to microprocessor, the first signal detection interface
For being connect with external equipment, radiofrequency signal is detected；
The output terminal of first radio frequency amplifier adjusts the input terminal of attenuator circuit to connect with electricity, and electricity adjusts the output terminal and electricity of attenuator circuit
The input terminal connection of equalizing circuit is adjusted, the output terminal of microprocessor adjusts attenuator circuit through manually/automatic gain control circuit and electricity
Control signal input connection, it is described electricity adjust attenuator circuit be used for by manual/auto gain control circuit adjust radio frequency electrical
Flat, the electricity adjusts equalizing circuit to be used to compensate the level difference of the high low side of level, and the manual/auto gain control circuit is by micro- place
Device control is managed, because input signal changes, attenuator circuit is adjusted using its adjusting electricity；
The electricity adjusts the output terminal of equalizing circuit to be connect with the input terminal of the second radio frequency amplifier, the output of the second radio frequency amplifier
End is connect with the input terminal of the second splitter, and the output terminal of the second splitter is divided into two-way, and the first via is the amplifying circuit
RF signal output, the second tunnel are connect with the input terminal of the second distributor, and the output terminal of the second distributor is divided into two-way, and first
The signal input part of the second radio frequency power detector of road and microprocessor connects, and the second tunnel connects with second signal detection interface
It connects, second splitter is used to fraction radiofrequency signal assigning to the second distributor, remaining most of radiofrequency signal carries out defeated
Go out, second distributor detects interface and the second radio frequency power detector for evenly distributing signal to second signal, described
Second radio frequency power detector feeds back to microprocessor for detecting radio-frequency power, the second signal detection interface be used for
External equipment connects, and radiofrequency signal is detected.
2. forward direction preceding radio frequency signal amplification circuit as described in claim 1, it is characterised in that：The radiofrequency signal amplification electricity
Road further includes Current Voltage parameter collection module, and the signal of the Current Voltage parameter collection module and the microprocessor inputs
End connection, for acquiring the electric current of the rf signal amplification circuit and information of voltage.
3. forward direction preceding radio frequency signal amplification circuit as described in claim 1, it is characterised in that：The radiofrequency signal amplification electricity
Road further includes temperature collection circuit, and the temperature collection circuit is connect with the signal input part of the microprocessor, for acquiring
The temperature information of the rf signal amplification circuit.
4. forward direction preceding radio frequency signal amplification circuit as described in claim 1, it is characterised in that：The radiofrequency signal amplification electricity
Road further includes SPI communication module, and the SPI communication module is bi-directionally connected with the microprocessor, for being connect with peripheral equipment,
Realize the remotely-or locally control to the rf signal amplification circuit.
5. forward direction preceding radio frequency signal amplification circuit as described in claim 1, it is characterised in that：The radiofrequency signal amplification electricity
Road further includes three-color LED display module, is connect with the signal output end of the microprocessor, for showing and the radiofrequency signal
The relevant parameter information of amplifying circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721124454.5U CN207559952U (en) | 2017-09-04 | 2017-09-04 | Positive preceding radio frequency signal amplification circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721124454.5U CN207559952U (en) | 2017-09-04 | 2017-09-04 | Positive preceding radio frequency signal amplification circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207559952U true CN207559952U (en) | 2018-06-29 |
Family
ID=62676114
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721124454.5U Active CN207559952U (en) | 2017-09-04 | 2017-09-04 | Positive preceding radio frequency signal amplification circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207559952U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112532256A (en) * | 2020-10-30 | 2021-03-19 | 南京航空航天大学 | Automatic gain control circuit of transmitting terminal with bidirectional configurable gain |
-
2017
- 2017-09-04 CN CN201721124454.5U patent/CN207559952U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112532256A (en) * | 2020-10-30 | 2021-03-19 | 南京航空航天大学 | Automatic gain control circuit of transmitting terminal with bidirectional configurable gain |
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