CN207020247U - A kind of RF signal power detection means - Google Patents
A kind of RF signal power detection means Download PDFInfo
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- CN207020247U CN207020247U CN201720938601.6U CN201720938601U CN207020247U CN 207020247 U CN207020247 U CN 207020247U CN 201720938601 U CN201720938601 U CN 201720938601U CN 207020247 U CN207020247 U CN 207020247U
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Abstract
The utility model is applied to electronic technology field, discloses a kind of RF signal power detection means, including：Radio-frequency match unit, the detection unit being connected with the radio-frequency match unit, the power detection indicating member being connected with the detection unit and the power supply unit being connected respectively with the detection unit and the power detection indicating member, radiofrequency signal to be detected is carried out by power match by radio-frequency match unit, so that detection unit can detect the power of the radiofrequency signal to be detected, and according to the corresponding voltage of power output of the radiofrequency signal detected, and indicated when the power for detecting the radiofrequency signal is more than predetermined power threshold value by power detection indicating member, the power of radiofrequency signal to be detected can be detected in real time, circuit structure is simple, it is easily achieved, and cost of implementation is low.
Description
Technical field
It the utility model is related to electronic technology field, more particularly to a kind of RF signal power detection means.
Background technology
Radio-frequency filter needs to test radio-frequency filter progress RF high power signal during production.
Radio frequency is generally detected by the RF signal power detection device of outside in real time when testing RF high power signal
Whether the power of high-power signal changes, that is, tests the stability of power etc. of RF high power signal, so as to ensure that radio frequency is filtered
The reliability of ripple device.But existing RF signal power detection device is that have fixed envelope by what specific manufacturer produced
The problem of circuit is complicated and cost is high be present in dress, the integrated equipment of particular characteristic, these RF signal power detection devices.
In summary, there is the problem of circuit is complicated and cost is high in existing RF signal power detection device.
Utility model content
The purpose of this utility model is that solving existing RF signal power detection device has circuit complexity and cost
A kind of the problem of high, there is provided RF signal power detection means.
The purpose of this utility model is to provide a kind of RF signal power detection means, and it includes：
Radio-frequency match unit, for carrying out power match to the power of radiofrequency signal to be detected, so that described to be detected
The power of radiofrequency signal meet test condition；
Detection unit, it is connected with the radio-frequency match unit, the detection unit is used to detect to be treated by power match
The power of the radiofrequency signal of detection, and according to the corresponding voltage signal of power output of radiofrequency signal to be detected；
Power detection indicating member, it is connected with the detection unit, the power detection indicating member is described for detecting
Whether the power of the radiofrequency signal to be detected by power match is more than predetermined power threshold value, and passes through power match described
The power of radiofrequency signal to be detected send instruction when being more than predetermined power threshold value；
Power supply unit, it is connected respectively with the detection unit and the power detection indicating member, said supply unit is used
In providing DC power supply for the RF signal power detection means.
A kind of RF signal power detection means provided by the utility model, including：Radio-frequency match unit and radio-frequency match
The connected detection unit of unit, the power detection indicating member being connected with detection unit, respectively with detection unit and power detection
The connected power supply unit of indicating member, radiofrequency signal to be detected is carried out by power match by radio-frequency match unit, so that inspection
Ripple unit can detect the power of the radiofrequency signal to be detected, and corresponding according to the power output of the radiofrequency signal detected
Voltage, and referred to when the power for detecting the radiofrequency signal is more than predetermined power threshold value by power detection indicating member
Show, can detect the power of radiofrequency signal to be detected in real time, circuit structure is simple, it is easy to accomplish, and cost of implementation is low.
Brief description of the drawings
, below will be to embodiment or prior art in order to illustrate more clearly of the technical scheme in the embodiment of the utility model
The required accompanying drawing used is briefly described in description, it should be apparent that, drawings in the following description are only that this practicality is new
Some embodiments of type, for those of ordinary skill in the art, without having to pay creative labor, can be with
Other accompanying drawings are obtained according to these accompanying drawings.
Fig. 1 is a kind of structural representation for RF signal power detection means that the utility model embodiment provides；
Fig. 2 is a kind of structural representation for RF signal power detection means that another embodiment of the utility model provides；
Fig. 3 is a kind of structural representation for RF signal power detection means that another embodiment of the utility model provides；
Fig. 4 is the electricity of detection unit in a kind of RF signal power detection means that another embodiment of the utility model provides
Line structure schematic diagram；
Fig. 5 is that power detection indicates in a kind of RF signal power detection means that another embodiment of the utility model provides
The electrical block diagram of unit；
Fig. 6 is signal amplification unit in a kind of RF signal power detection means that another embodiment of the present embodiment provides
Electrical block diagram；
Fig. 7 is that current detecting instruction is single in a kind of RF signal power detection means that another embodiment of utility model provides
The electrical block diagram of member.
Embodiment
In order that the purpose of this utility model, technical scheme and advantage are more clearly understood, below in conjunction with accompanying drawing and implementation
Example, the utility model is further elaborated.It should be appreciated that specific embodiment described herein is only explaining this
Utility model, it is not used to limit the utility model.
Circuit complexity and cost be present to solve existing RF signal power detection device in the utility model embodiment
The problem of high, there is provided a kind of RF signal power detection means, entered radiofrequency signal to be detected by radio-frequency match unit
Row power match, so that detection unit can detect the power of the radiofrequency signal to be detected, and believed according to the radio frequency detected
Number the corresponding voltage of power output, and examined when the power for detecting the radiofrequency signal is more than predetermined power threshold value by power
Survey indicating member and indicated that can detect the power of radiofrequency signal to be detected in real time, circuit structure is simple, be easy to real
It is existing, and cost of implementation is low, efficiently solve existing RF signal power detection device and have that circuit is complicated and cost is high asks
Topic.
In order to illustrate technical scheme that the utility model embodiment is provided, said below by specific embodiment
It is bright.
Fig. 1 shows a kind of structure for RF signal power detection means that the utility model embodiment provides, such as Fig. 1 institutes
Show, a kind of RF signal power detection means 100 includes：Radio-frequency match unit 10, detection unit 20, power detection indicating member
30 and power supply unit 40.Specifically：
Radio-frequency match unit 10, for carrying out power match to the power of radiofrequency signal to be detected, so as to be detected
The power of radiofrequency signal meets test condition.
Detection unit 20, it is connected with radio-frequency match unit 10, detection unit 20 is used to detect by the to be checked of power match
The power of the radiofrequency signal of survey, and according to the corresponding voltage signal of power output of radiofrequency signal to be detected.
Power detection indicating member 30, it is connected with detection unit 20, power detection indicating member 30, which is used to detect, passes through work(
Whether the power of the radiofrequency signal to be detected of rate matching is more than predetermined power threshold value, and by the to be detected of power match
The power of radiofrequency signal sends instruction when being more than predetermined power threshold value.
Power supply unit 40, it is connected respectively with detection unit 20 and power detection indicating member 30, power supply unit 40 is for being
RF signal power detection means provides DC power supply.
It should be noted that radiofrequency signal to be detected from RF signal input end mouth input, radio-frequency match unit 10 with
Radiofrequency signal input source RF to be detected is connected, and radiofrequency signal to be detected is high-power RF signal, by radio-frequency match list
10 pairs of high-power RF signals of member carry out power match so as to realize the decay to power, so that the work(of radiofrequency signal to be detected
Rate meets test condition, that is, enables detection unit to detect the power of the radiofrequency signal to be detected through overdamping,
Then according to the power output voltage of radiofrequency signal to be detected, by the way that the voltage of output is identified, can examine in real time
The power of radiofrequency signal to be detected is measured, and is more than default work(in the power of the radiofrequency signal to be detected Jing Guo power match
Power detection indicating member 30 is controlled to send instruction during rate threshold value.
It should also be noted that, a kind of possibility realized as the present embodiment, above-mentioned power supply unit is that AC-DC power supplys are fitted
Orchestration, including a single-pole single-throw switch (SPST), the break-make for realizing power supply by single-pole single-throw switch (SPST) controls, further, above-mentioned
Power supply unit can also be powered by USB.
It is understood that power supply unit 40 can provide the direct current needed for detection for RF signal power detection means
Source, specifically, can be powered for detection unit 20 and power detection indicating member 30.
Further, a kind of possibility realized as the present embodiment, above-mentioned RF signal power detection means 100 are also wrapped
Include current detecting indicating member 50, current detecting indicating member 50 be used to testing RF signal power detection means electric current whether
Beyond predetermined current threshold, and instruction is sent when the electric current of RF signal power detection means exceeds predetermined current threshold.Its
In, current detecting indicating member 50 connects the entirety of RF signal power detection means, specifically, connection RF signal power inspection
The current detecting end of device is surveyed, by the match circuit and computational algorithm of current detecting chip itself, is recognizing radiofrequency signal
The overall power consumption stream of power detection device sends instruction when exceeding predetermined current threshold, indicates the RF signal power detection means
Entirety there is the situation of excessively stream.Power supply unit 40 can also be that current detecting indicating member 50 is powered.It is it should be noted that electric
Stream detection indicating member 50 is also connected with externally fed power supply, and externally fed power supply can be that current detecting indicating member 50 supplies
Electricity.
A kind of RF signal power detection means that the utility model embodiment provides, it can be incited somebody to action by radio-frequency match unit
Radiofrequency signal to be detected carries out power match, power attenuation is realized, so that detection unit can detect the radio frequency to be detected
The power of signal, and according to the corresponding voltage of power output of the radiofrequency signal detected, by knowing to the voltage of output
It is other, the power of radiofrequency signal to be detected can be detected in real time, and is more than in the power for detecting the radiofrequency signal and is preset
Indicated during power threshold by power detection indicating member, the work(of radiofrequency signal to be detected can be detected in real time
Rate, circuit structure are simple, it is easy to accomplish, and cost of implementation is low, efficiently solves existing RF signal power detection device and deposits
It is complicated and the problem of cost is high in circuit.
Fig. 2 shows a kind of structure for RF signal power detection means that another embodiment of the utility model provides, such as
It is different from a upper embodiment shown in Fig. 2, a kind of RF signal power detection means 100 in the present embodiment, in addition to, letter
Number amplifying unit 60.
Signal amplification unit 60, it is connected with detection unit 20, the voltage for detection unit to be exported is amplified.
Because the change of the voltage of the detection output of detection unit 20 is very small, therefore by signal amplification unit 60 to inspection
After the voltage that ripple unit 20 exports is amplified, the voltage after amplification is exported, can be further accurately detected
The power of radiofrequency signal to be detected.
It should be noted that a kind of possibility realized as the present embodiment, above-mentioned signal amplification unit 60 is by detection list
The voltage of the output of member 20 carries out twice of amplification, and the voltage after amplification is directly exported.
Fig. 3 shows a kind of structure for RF signal power detection means that another embodiment of the utility model provides, such as
It is different from first embodiment shown in Fig. 3, a kind of RF signal power detection means 100 in the present embodiment, in addition to, it is single
Piece machine control unit 70.
Single chip control unit 70, it is connected between detection unit 20 and power detection indicating member 30, single-chip microcomputer control
Unit 70 is used to the voltage of detection unit output carrying out analog-to-digital conversion, and the voltage exported according to detection unit judges to be detected
Whether the power of radiofrequency signal is more than predetermined power threshold value, and is more than predetermined power threshold value in the power of radiofrequency signal to be detected
When control power detection indicating member 30 to send instruction.
It should be noted that above-mentioned single chip control unit 70 includes single-chip microcomputer and by resistance, electric capacity and inductance etc.
The periphery matching of component composition.The voltage that single chip control unit 70 exports to detection unit 20 carries out analog-to-digital conversion, then
Magnitude of voltage output after analog-to-digital conversion is given to computer, computer can calculate radio frequency letter to be detected according to the magnitude of voltage
Number power, in addition, single chip control unit 70 can also be according to the magnitude of voltage and predetermined voltage threshold obtained by analog-to-digital conversion
It is compared, when the magnitude of voltage is more than default voltage threshold, confirms that the power of the radiofrequency signal to be detected is more than and preset
Power threshold, now, control power detection indicating member 30 send instruction.In addition, single chip control unit 70 is acceptable and upper
State current detecting indicating member 50 to connect, be more than predetermined current threshold in the electric current for detecting RF signal power detection means 100
During value, control electric current detection indicating member 50 sends instruction.
Fig. 4 shows a kind of tool of the detection unit for device for detecting power of radio frequency that another embodiment of the utility model provides
Body circuit, as shown in figure 4, detection unit 20 includes：First electric capacity C1, the second electric capacity C2, the 3rd electric capacity C3, first resistor R1,
Detection tube U1, the 4th electric capacity C4, second resistance R2,3rd resistor R3, the 5th electric capacity C5, the 6th electric capacity C6, the 4th resistance R4,
Seven electric capacity C7.
Detection tube U1 differential signal input INHI, INLO is connected with radio-frequency match unit, and the public of detection tube U1 connects
Ground terminal COMM is grounded, and detection tube U1 filtering end CHPF is connected with the first electric capacity C1 first end, the first electric capacity C1 the second end
Ground connection, detection tube U1 the first decoupling end DECL1 are connected with the second electric capacity C2 first end, the second electric capacity C2 the second termination
Ground, detection tube U1 the second decoupling end DECL2 are connected with the 3rd electric capacity C3 first end, the 3rd electric capacity C3 the second end ground connection,
Detection tube U1 switch control terminal PWDN is connected with first resistor R1 first end, first resistor R1 the second end ground connection, detection
Pipe U1 power end VPOS is connected with the 4th electric capacity C4 first end, the 4th electric capacity C4 the second end ground connection, second resistance R2's
First end is connected with the 4th electric capacity C4 first end, and second resistance R2 the second end is connected with the 5th electric capacity C5 first end, the
Five electric capacity C5 the second end ground connection, the 5th electric capacity C5 first end are connected with power supply unit 40, detection tube U1 voltage output end
VOUT is connected with 3rd resistor R3 first end, 3rd resistor R3 the second end output voltage signal, and detection tube U1 electric capacity connects
End CLPF is met be connected with the 6th electric capacity C6 first end, the 6th electric capacity C6 the second end is grounded, the 4th resistance R4 first end and
3rd resistor R3 the second end connection, the 4th resistance R4 the second end are connected with the 6th electric capacity C6 the second end, the 7th electric capacity C7
First end and the second end be connected respectively with the 4th resistance R4 first end and the second end.
Further, as a kind of possibility realized of the present utility model, above-mentioned detection tube U1 is model：AD8362's
Detection tube.
Fig. 5 shows a kind of power detection instruction for device for detecting power of radio frequency that another embodiment of the utility model provides
The physical circuit of unit, as shown in figure 5, power detection indicating member 30 includes：5th resistance R5, first switch pipe Q1, first
Luminous tube LED1, the 6th resistance R6.
5th resistance R5 first end is connected with detection unit, the 5th resistance R5 the second end and first switch pipe Q1 by
End connection is controlled, first switch pipe Q1 hot end is connected with the first luminous tube LED1 negative pole, and the first luminous tube LED1 is just
Pole is connected with the 6th resistance R6 first end, and the 6th resistance R6 the second end is connected with power supply unit, and first switch pipe Q1's is low
Potential end is grounded.
Further, as a kind of possibility realized of the utility model, first switch pipe Q1 is NPN type triode Q1, the
One switching tube Q1 controlled end is NPN type triode Q1 base stage, and first switch pipe Q1 hot end is NPN type triode Q1
Colelctor electrode, first switch pipe Q1 cold end is NPN type triode Q1 emitter stages.
Fig. 6 shows a kind of signal amplification unit for device for detecting power of radio frequency that another embodiment of the utility model provides
Physical circuit, as shown in fig. 6, signal amplification unit includes：7th resistance R7, the 8th resistance R8, the 9th resistance R9, the tenth electricity
Hinder R10, operational amplifier U2, the 8th electric capacity C8, the 9th electric capacity C9, the 11st resistance R11, the 12nd resistance R12.
7th resistance R7 first end is connected with detection unit, and the of the 7th resistance R7 the second end and operational amplifier U2
One input is connected, and operational amplifier U2 the second input is connected with the 8th resistance R8 first end, and the of the 8th resistance R8
Two ends are grounded, and the 9th resistance R9 first end is connected with the 7th resistance R7 the second end, the 9th resistance R9 the second end ground connection, fortune
The positive power source terminal for calculating amplifier U2 is connected with the tenth resistance R10 first end, the tenth resistance R10 the second end and power supply unit phase
Even, the 8th electric capacity C8 first end is connected with the tenth resistance R10 first end, the 8th electric capacity C8 the second end ground connection, the 9th electricity
The first end for holding C9 is connected with the tenth resistance R10 the second end, the 9th electric capacity C9 the second end ground connection, the 11st resistance R11's
First end is connected with the 8th resistance R8 first end, and the 11st resistance R11 the second end connects with the 12nd resistance R12 first end
Connect, the 12nd resistance R12 first end concatenation operation amplifier U2 output end, the 12nd resistance R12 the second end output warp
Voltage after being amplified by signal amplification unit.
Fig. 7 shows a kind of current detecting instruction for device for detecting power of radio frequency that another embodiment of the utility model provides
The physical circuit of unit, as shown in fig. 7, current detecting indicating member includes：13rd resistance R13, the 14th resistance R14, electricity
Flow detection chip U3, the 15th resistance R15, the tenth electric capacity C10, the 16th resistance R16, the 17th resistance R17, second switch pipe
Q2, the second luminous tube LED2, the 18th resistance R18.
13rd resistance R13 first end is connected with the current detecting end of RF signal power detection means, the 13rd electricity
Resistance R13 first end is connected with the 14th resistance R14 first end, the 14th resistance R14 the second end and the 13rd resistance R13
The connection of the second end, current detecting chip U3 first input end VIN is connected with the 14th resistance R14 first end, and electric current is examined
The the second input LOAD for surveying chip U3 is connected with the 14th resistance R14 the second end, current detecting chip U3 output end
VOUT is connected with the 15th resistance R15 first end, and the 15th the second ends of resistance R15 are connected with the tenth electric capacity C10 first end,
Tenth electric capacity C10 the second end ground connection, the 16th resistance R16 first end are connected with the tenth electric capacity C10 first end, and the 16th
Resistance R16 the second end is connected with the tenth electric capacity C10 the second end, the 17th resistance R17 first end and the 16th resistance R16
First end connection, the 17th resistance R17 the second end is connected with second switch pipe Q2 controlled end, second switch pipe Q2 height
Potential end is connected with the second luminous tube LED2 negative pole, the second luminous tube LED2 positive pole and the 18th resistance R18 first end
Connection, the 18th resistance R18 the second termination power supply, second switch pipe Q2 cold end ground connection.
Further, as a kind of possibility realized of the utility model, second switch pipe Q2 is NPN type triode Q2, the
Two switching tube Q2 controlled end is NPN type triode Q2 base stage, and second switch pipe Q2 hot end is NPN type triode Q2
Colelctor electrode, second switch pipe Q2 cold end is NPN type triode Q2 emitter stages.
Further, as a kind of possibility realized of the present utility model, above-mentioned current detecting chip U3 is model
ZXCT1009 current detecting chip.
Operation principle of the present utility model is described in detail the particular circuit configurations of following unit.
Radio-frequency match unit is decayed the power of radiofrequency signal to be detected, and detection tube U1 enters to the power after decay
Row detection, and corresponding voltage signal is exported, as a kind of implementation of the present utility model, detection tube U1 is exported
Voltage signal is directly exported, and the performance number of radiofrequency signal to be detected is just can determine that out according to the voltage signal of output, by detection
The voltage signal of pipe U1 outputs is given to power detection indicating member 30, when the voltage of detection tube U1 outputs reaches first switch pipe Q1
Conducting voltage when, first switch pipe Q1 conductings, specifically, the magnitude of voltage of detection tube U1 outputs reaches first switch pipe Q1 base
Between pole and emitter stage during minimum saturation voltage (0.75V), first switch pipe Q1 conductings, and then cause the first light emitting diode
LED1 is lighted, and to indicate that the power of radiofrequency signal to be detected exceeds predetermined power threshold value, current detecting indicating member 50 is being penetrated
When the electric current of frequency signal power detection means is excessive, current detecting chip U3 output end has voltage output, works as current detecting
When the voltage of chip U3 output end output reaches second switch pipe Q2 conducting voltage, second switch pipe Q2 conductings, specifically,
The magnitude of voltage of current detecting chip U3 output end output reaches minimum between second switch pipe Q2 base stage and emitter stage and satisfied
During with voltage (0.75V), second switch pipe Q2 conductings, and then make it that the second LED 2 is luminous, to indicate that radio frequency is believed
The electric current of number power detection device exceeds predetermined current threshold.
As another implementation of the present utility model, above-mentioned detection tube U1 is defeated after being detected to the power after decay
Go out corresponding voltage signal, the voltage signal is subjected to voltage signal amplification by the operational amplifier U2 of signal amplification unit 60
Afterwards, then by the voltage signal after amplification exported, can further be accurately detected the work(of radiofrequency signal to be detected
Rate.
As another implementation of the present utility model, above-mentioned detection tube U1 is defeated after being detected to the power after decay
Go out corresponding voltage signal, the voltage signal is output to single chip control unit 70, passes through the list of single chip control unit 70
Piece machine is uploaded to computer after carrying out analog-to-digital conversion to the voltage signal, analyzes to calculate by computer and obtains this and to be detected penetrate
The power of frequency signal, moreover it is possible to be entered by single-chip microcomputer according to the magnitude of voltage obtained by analog-to-digital conversion with predetermined voltage threshold
Row compares, and when the magnitude of voltage is more than default voltage threshold, confirms that the power of the radiofrequency signal to be detected is more than default work(
Rate threshold value, now, the Q1 conductings of control first switch pipe, and then the first luminous tube LED1 is lighted, to indicate to be detected penetrate
The power of frequency signal exceeds predetermined power threshold value.In addition, single-chip microcomputer can also detect the RF signal power detection means 100
Electric current, and when the electric current for detecting RF signal power detection means 100 is more than predetermined current threshold, control second switch pipe
Q2 is turned on, and then the second luminous tube LED2 is lighted, and exceeds predetermined current threshold with the electric current of RF signal power detection means
Value.
The RF signal power detection means that the present embodiment provides, by radio-frequency match unit by radiofrequency signal to be detected
Power match is carried out, realizes power attenuation, so that detection unit can detect the power of the radiofrequency signal to be detected, and according to
The corresponding voltage of power output of the radiofrequency signal detected, or will be put again after the voltage of detection unit output is amplified
Big voltage is exported, or is by the voltage output of detection unit output end to single chip control unit, passes through monolithic
Machine control unit is uploaded to computer after carrying out analog-to-digital conversion to the voltage, then can be real by the way that the voltage of output is identified
When the power for detecting radiofrequency signal to be detected, and when the power for detecting the radiofrequency signal is more than predetermined power threshold value
Indicated by power detection indicating member, moreover it is possible to when the electric current of the RF signal power detection means is excessive, hair
Go out instruction, can detect the power of radiofrequency signal to be detected in real time, circuit structure is simple, it is easy to accomplish, and be implemented as
This is low, efficiently solves existing RF signal power detection device and the problem of circuit is complicated and cost is high be present.
Above content is to combine specific preferred embodiment further detailed description of the utility model, it is impossible to
Assert that specific implementation of the present utility model is confined to these explanations.For the ordinary skill of the utility model art
For personnel, make some equivalent substitutes or obvious modification without departing from the concept of the premise utility, and performance or
Purposes is identical, should all be considered as belonging to the scope of patent protection that the utility model is determined by the claims submitted.
Claims (10)
1. a kind of RF signal power detection means, it is characterised in that the detection means includes：
Radio-frequency match unit, for carrying out power match to the power of radiofrequency signal to be detected, so that described to be detected penetrates
The power of frequency signal meets test condition；
Detection unit, it is connected with the radio-frequency match unit, the detection unit is used to detect by the to be detected of power match
Radiofrequency signal power, and according to the corresponding voltage signal of power output of radiofrequency signal to be detected；
Power detection indicating member, it is connected with the detection unit, the power detection indicating member is used to detect the process
Whether the power of the radiofrequency signal to be detected of power match is more than predetermined power threshold value, and is treated described by power match
The power of the radiofrequency signal of detection sends instruction when being more than predetermined power threshold value；
Power supply unit, it is connected respectively with the detection unit and the power detection indicating member, said supply unit is for being
The RF signal power detection means provides DC power supply.
2. RF signal power detection means as claimed in claim 1, it is characterised in that the RF signal power detection dress
Putting also includes：
Signal amplification unit, it is connected with the detection unit, the voltage for the detection unit to be exported is amplified.
3. RF signal power detection means as claimed in claim 1, it is characterised in that the RF signal power detection dress
Putting also includes：
Single chip control unit, it is connected between the detection unit and the power detection indicating member, the single-chip microcomputer control
The voltage that unit processed is used to export the detection unit carries out analog-to-digital conversion, and the voltage exported according to the detection unit judges
Whether the power of the radiofrequency signal to be detected is more than predetermined power threshold value, and in the power of the radiofrequency signal to be detected
The power detection indicating member is controlled to send instruction during more than predetermined power threshold value.
4. the RF signal power detection means as described in claims 1 to 3 any one, it is characterised in that the radio frequency letter
Number power detection device also includes：
Whether current detecting indicating member, the electric current for testing the RF signal power detection means exceed predetermined current threshold
Value, and send instruction when the electric current of the RF signal power detection means exceeds predetermined current threshold.
5. RF signal power detection means as claimed in claim 1, it is characterised in that the detection unit includes：First
Electric capacity, the second electric capacity, the 3rd electric capacity, first resistor, detection tube, the 4th electric capacity, second resistance, 3rd resistor, the 5th electric capacity,
Six electric capacity, the 4th resistance, the 7th electric capacity；
The differential signal input of the detection tube is connected with radio-frequency match unit, the common ground end ground connection of the detection tube,
The filtering end of the detection tube is connected with the first end of first electric capacity, the second end ground connection of first electric capacity, the inspection
First decoupling end of wave duct is connected with the first end of second electric capacity, the second end ground connection of second electric capacity, the detection
Second decoupling end of pipe is connected with the first end of the 3rd electric capacity, the second end ground connection of the 3rd electric capacity, the detection tube
Switch control terminal be connected with the first end of the first resistor, the second end of first resistor ground connection, the detection tube
Power end is connected with the first end of the 4th electric capacity, the second end ground connection of the 4th electric capacity, and the first of the second resistance
End is connected with the first end of the 4th electric capacity, and the second end of the second resistance is connected with the first end of the 5th electric capacity,
The second end ground connection of 5th electric capacity, the first end of the 5th electric capacity are connected with power supply unit, the voltage of the detection tube
Output end is connected with the first end of the 3rd resistor, the second end output voltage signal of the 3rd resistor, the detection tube
Capacitance connection end be connected with the first end of the 6th electric capacity, the second end of the 6th electric capacity ground connection, the 4th resistance
First end be connected with the second end of the 3rd resistor, the second end of the 4th resistance and the second end of the 6th electric capacity
Connection, the first end of the 7th electric capacity and the second end are connected with the first end of the 4th resistance and the second end respectively.
6. RF signal power detection means as claimed in claim 1, it is characterised in that the power detection indicating member bag
Include：5th resistance, first switch pipe, the first luminous tube, the 6th resistance；
The first end of 5th resistance is connected with the detection unit, the second end and the first switch of the 5th resistance
The controlled end connection of pipe, the hot end of the first switch pipe are connected with the negative pole of first luminous tube, first hair
The positive pole of light pipe is connected with the first end of the 6th resistance, and the second end of the 6th resistance is connected with said supply unit,
The cold end ground connection of the first switch pipe.
7. RF signal power detection means as claimed in claim 2, it is characterised in that the signal amplification unit includes：
7th resistance, the 8th resistance, the 9th resistance, the tenth resistance, operational amplifier, the 8th electric capacity, the 9th electric capacity, the 11st resistance,
12nd resistance；
The first end of 7th resistance is connected with detection unit, the second end and the operational amplifier of the 7th resistance
First input end is connected, and the second input of the operational amplifier is connected with the first end of the 8th resistance, and the described 8th
The second end ground connection of resistance, the first end of the 9th resistance are connected with the second end of the 7th resistance, the 9th resistance
The second end ground connection, the positive power source terminal of the operational amplifier is connected with the first end of the tenth resistance, the tenth resistance
The second end be connected with power supply unit, the first end of the 8th electric capacity is connected with the first end of the tenth resistance, described
The second end ground connection of eight electric capacity, the first end of the 9th electric capacity are connected with the second end of the tenth resistance, the 9th electricity
The the second end ground connection held, the first end of the 11st resistance are connected with the first end of the 8th resistance, the 11st electricity
Second end of resistance is connected with the first end of the 12nd resistance, and the first end of the 12nd resistance connects the operation amplifier
The output end of device, the second end output of the 12nd resistance is via the voltage after signal amplification unit amplification.
8. RF signal power detection means as claimed in claim 4, it is characterised in that the current detecting indicating member bag
Include：13rd resistance, the 14th resistance, current detecting chip, the 15th resistance, the tenth electric capacity, the 16th resistance, the 17th electricity
Resistance, second switch pipe, the second luminous tube, the 18th resistance；
The first end of 13rd resistance is connected with the current detecting end of RF signal power detection means, the 13rd electricity
The first end of resistance is connected with the first end of the 14th resistance, the second end and the 13rd resistance of the 14th resistance
The connection of the second end, the first input end of the current detecting chip is connected with the first end of the 14th resistance, the electricity
Stream detection chip the second input be connected with the second end of the 14th resistance, the output end of the current detecting chip and
The first end connection of 15th resistance, second end of the 15th resistance are connected with the first end of the tenth electric capacity, institute
The second end ground connection of the tenth electric capacity is stated, the first end of the 16th resistance is connected with the first end of the tenth electric capacity, described
16th the second end of resistance is connected with the second end of the tenth electric capacity, the first end and the described 16th of the 17th resistance
The first end connection of resistance, the second end of the 17th resistance are connected with the controlled end of the second switch pipe, and described second
The hot end of switching tube is connected with the negative pole of second luminous tube, the positive pole of second luminous tube and the described 18th electricity
The first end connection of resistance, the second termination power supply of the 18th resistance, the cold end ground connection of the second switch pipe.
9. RF signal power detection means as claimed in claim 6, it is characterised in that the first switch pipe is NPN type
Triode, the controlled end of the first switch pipe are the base stage of the NPN type triode, the hot end of the first switch pipe
For the colelctor electrode of the NPN type triode, the cold end of the first switch pipe is the NPN type triode emitter stage.
10. RF signal power detection means as claimed in claim 8, it is characterised in that the second switch pipe is NPN type
Triode, the controlled end of the second switch pipe are the base stage of the NPN type triode, the hot end of the second switch pipe
For the colelctor electrode of the NPN type triode, the cold end of the second switch pipe is the NPN type triode emitter stage.
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| CN201720938601.6U CN207020247U (en) | 2017-07-28 | 2017-07-28 | A kind of RF signal power detection means |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113109620A (en) * | 2021-03-03 | 2021-07-13 | 昆明理工大学 | Power measurement circuit of high-power radio frequency signal |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113109620A (en) * | 2021-03-03 | 2021-07-13 | 昆明理工大学 | Power measurement circuit of high-power radio frequency signal |
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Effective date of registration: 20190211 Address after: 518000 Guangming Street, Guangming New District, Shenzhen City, Guangdong Province, Genyu Road, Mobi Science and Technology Building Co-patentee after: Mobile Antenna Technologies (Shenzhen) Co., Ltd. Patentee after: Mobi Technology (Shenzhen) Co., Ltd. Co-patentee after: Mobile Antenna Technologies (Jian) Co., Ltd. Co-patentee after: MOBI Technologies (Xi'an) Co., Ltd. Address before: 518057 Mobi Building, Langshan Road, North District of Nanshan High-tech Industrial Park, Shenzhen City, Guangdong Province Co-patentee before: Mobile Antenna Technologies (Jian) Co., Ltd. Patentee before: Mobile Antenna Technologies (Shenzhen) Co., Ltd. Co-patentee before: MOBI Technologies (Xi'an) Co., Ltd. |
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