CN206497149U - A kind of novel microwave signal power detection module - Google Patents
A kind of novel microwave signal power detection module Download PDFInfo
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- CN206497149U CN206497149U CN201720062563.2U CN201720062563U CN206497149U CN 206497149 U CN206497149 U CN 206497149U CN 201720062563 U CN201720062563 U CN 201720062563U CN 206497149 U CN206497149 U CN 206497149U
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- 238000001514 detection method Methods 0.000 title claims abstract description 34
- 230000003321 amplification Effects 0.000 claims abstract description 10
- 238000003199 nucleic acid amplification method Methods 0.000 claims abstract description 10
- 238000000034 method Methods 0.000 claims abstract description 6
- 238000004891 communication Methods 0.000 claims abstract description 5
- 238000012937 correction Methods 0.000 claims abstract description 4
- 238000001914 filtration Methods 0.000 claims abstract 2
- 239000004065 semiconductor Substances 0.000 claims description 21
- 230000005611 electricity Effects 0.000 claims description 7
- 239000003990 capacitor Substances 0.000 claims description 3
- 238000007599 discharging Methods 0.000 claims description 3
- 238000005259 measurement Methods 0.000 abstract description 13
- 238000010586 diagram Methods 0.000 description 5
- 230000005540 biological transmission Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000005764 inhibitory process Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
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Abstract
A kind of novel microwave signal power detection module, including：Detecting circuit：The microwave signal of input is converted into the detection output voltage signal of differential state to balance chopper circuit；Balance chopper circuit：Detection output voltage signal is received, the square-wave signal that the detection output voltage signal for direct current is converted into exchange is exported to amplifying circuit；Amplifying circuit：The amplitude of square-wave signal is improved, filter circuit is sent to after amplification；Filter circuit：Eliminate after the DC bias signal in the square-wave signal after amplification, filtering interference signals, transmit a signal to AD acquisition modules；AD acquisition modules：The signal received is converted into data signal by analog signal and is sent to single chip circuit；Single chip circuit：Data signal is received, with external equipment row data communication is entered after carrying out correction process using single-chip microcomputer internal processes.The utility model power detection precision is high, and measurement range pipe is effectively treated to measurement result, can communicated with external equipment.
Description
Technical field
The utility model is related to radiofrequency signal field, more particularly to a kind of novel microwave signal power detection module.
Background technology
Microwave power is an important parameter of microwave signal characteristic, the generally research and development in microwave equipment and production process
In, power measurement is all an essential step, and the thunder is just can confirm that by the transmission power of instrumentation radar emitter
The operating distance reached, equally in a communications system, the transmission power of emitter are bigger, and the region that it is covered is also bigger, improve work(
Rate will also improve system cost, start with from power measurement, equipment is met design requirement.Power measurement technology is also extensive simultaneously
Applied to the test of microwave device, but traditional microwave power detecting system circuit structure is complex, and data need outside count
Calculation machine is handled, and measurement accuracy and measurement range are all relatively low.
Utility model content
The purpose of this utility model is：Data are needed at outer computer in traditional microwave power test
Reason, there is provided a kind of novel microwave signal power detection module for measurement accuracy and all relatively low problem of measurement range.
The technical solution adopted in the utility model is as follows：
A kind of novel microwave signal power detection module, including：Detecting circuit：The microwave signal of input is converted into difference
The detection output voltage signal of state to balance chopper circuit；Balance chopper circuit：Detection output voltage signal is received, will be straight
The square-wave signal that the detection output voltage signal of stream is converted into exchange is exported to amplifying circuit；Amplifying circuit：Improve square-wave signal
Amplitude, be sent to filter circuit after amplification；Filter circuit：Eliminate the DC bias signal in the square-wave signal after amplification, filter
After interference signal, AD acquisition modules are transmitted a signal to；AD acquisition modules：The signal received is converted to by analog signal
Data signal is sent to single chip circuit；Single chip circuit：Data signal is received, is carried out using single-chip microcomputer internal processes at correction
Enter row data communication with external equipment after reason.
Further, the detecting circuit structure is：Microwave signal input passes sequentially through electric capacity C4 and resistance R4 connections
To diode D1 positive pole and diode D2 negative pole, electric capacity C4 and resistance R4 node are grounded by resistance R8, diode D1
Negative pole pass sequentially through electric capacity C2 and electric capacity C7 and be connected to diode D2 positive pole, electric capacity C2 and electric capacity C7 node ground connection；Two
Pole pipe D1 negative pole is as detection output voltage signal positive output end, and diode D2 positive pole is negative as detection output voltage signal
Output end.Microwave signal isolates out signal DC component, two detector diode difference output difference direct current letters by electric capacity C4
Number, when can effectively eliminate power measurement after different metal be connected to contact voltage problem, it is suppressed that even-order harmonic is caused
Measurement error, eliminate common-mode noise, improve signal to noise ratio.
Further, the balance chopper circuit structure is：Signal positive input terminal passes sequentially through resistance R2 and resistance R3 and connected
It is connected to metal-oxide-semiconductor Q1 grid；Metal-oxide-semiconductor Q1 drain electrodes are connected to VCC, and it drains is grounded by resistance R1 and electric capacity C1 respectively, metal-oxide-semiconductor
Q1 drain electrode passes sequentially through electric capacity C5 and resistance R7 is connected to metal-oxide-semiconductor Q2 source electrode；Resistance R2 and resistance R3 node pass through electricity
Hold the source electrode that C8 is connected to metal-oxide-semiconductor Q2, electric capacity C8 is grounded by resistance R9 and electric capacity C9 respectively；Signal negative input end passes through resistance
R6 is connected to electric capacity C5 and resistance R7 node, and electric capacity C8 and resistance R9 node are connected to VCC, metal-oxide-semiconductor Q1 source electrode and MOS
Pipe Q2 drain electrode is connected as signal output part, and signal output part is grounded by resistance R5 and electric capacity C6 respectively, signal output part
Resistance R6 and resistance R7 node are also connected to by electric capacity C3.The conducting in turn of biswitch metal-oxide-semiconductor is make use of, device is eliminated
Internal low frequency noise.
Further, the amplification circuit structure is：Signal input part by electric capacity C20 connecting triodes Q3 base stage,
Electric capacity C16 and electric capacity C18 are parallel between triode Q3 base stage and colelctor electrode；Triode Q3 base stage is connect by resistance R25
Ground, its emitter stage passes sequentially through electric capacity C23 and resistance R26 ground connection, and its colelctor electrode is connected to the negative of amplifier U1B by resistance R19
Input；Be connected with electric capacity C19 between amplifier U1B positive input terminal and negative input end, its positive input terminal ground connection, its input and
Electric capacity C10 is connected between output end, resistance R10, resistance R11 and resistance are also in series between its its input and output end
R12；Resistance 10 and resistance R11 node are grounded by polar capacitor C14, and resistance 11 and resistance R12 node pass through polarity electricity
Hold C15 to be grounded, resistance 11 and resistance R12 node are grounded by resistance R15；Triode Q3 emitter stage passes sequentially through resistance
R21 and electric capacity C22, which are connected on integrated transporting discharging U1B output end, electric capacity C22, is in series with resistance R24, amplifier U1B output end
Pass sequentially through resistance R24, resistance R23, resistance R22 and be connected to VCC, resistance R22 and resistance R23 node and connect by resistance C24
Ground；Amplifier U1B output end is used as amplified signal output end.Amplifying circuit uses the fortune of common emitter bipolar transistor and low noise
Put, it is ensured that larger dynamic operating range.
Further, the filter circuit construction is：Signal input part passes sequentially through reversed polarity electric capacity C11, positive pole
Property electric capacity C12, resistance R13 be connected to amplifier U1A negative input end, amplifier U1A positive input terminal ground connection；Amplifier U1A's is negative defeated
Enter end and pass sequentially through resistance R20 and resistance R16 to be connected to its output end, in parallel and resistance after resistance R18 and electric capacity C17 series connection
On R20；Amplifier U1A output ends pass through resistance R17 and electricity respectively by being used as signal output part, signal output part after resistance R14
Hold C13 ground connection, effectively eliminate the noise spike of amplified signal.
Further, the AD Acquisition Circuit includes ADS83161, gradually compares cake core using 16, for same at a high speed
Signal acquisition is walked, with outstanding common mode inhibition capacity
Further, the AD Acquisition Circuit includes STM32, and convenient progress data preliminary treatment and external device data are mutual
Hand over.
In summary, by adopting the above-described technical solution, the beneficial effects of the utility model are：Power detection precision
Height, measurement range pipe, is effectively treated to measurement result, can be communicated with external equipment.
Brief description of the drawings
Fig. 1 is the utility model principle assumption diagram.
Fig. 2 is the utility model detecting circuit schematic diagram.
Fig. 3 is the utility model balance chopper circuit schematic diagram.
Fig. 4 is the utility model amplifying circuit schematic diagram.
Fig. 5 is the utility model filter circuit schematic diagram.
Embodiment
All features disclosed in this specification, can be with any in addition to mutually exclusive feature and/or step
Mode is combined.
The utility model is elaborated below in conjunction with the accompanying drawings.
A kind of novel microwave signal power detection module, including：Detecting circuit：The microwave signal of input is converted into difference
The detection output voltage signal of state to balance chopper circuit；Balance chopper circuit：Detection output voltage signal is received, will be straight
The square-wave signal that the detection output voltage signal of stream is converted into exchange is exported to amplifying circuit；Amplifying circuit：Improve square-wave signal
Amplitude, be sent to filter circuit after amplification；Filter circuit：Eliminate the DC bias signal in the square-wave signal after amplification, filter
After interference signal, AD acquisition modules are transmitted a signal to；AD acquisition modules：The signal received is converted to by analog signal
Data signal is sent to single chip circuit；Single chip circuit：Data signal is received, is carried out using single-chip microcomputer internal processes at correction
Enter row data communication with external equipment after reason.
Further, the detecting circuit structure is：Microwave signal input passes sequentially through electric capacity C4 and resistance R4 connections
To diode D1 positive pole and diode D2 negative pole, electric capacity C4 and resistance R4 node are grounded by resistance R8, diode D1
Negative pole pass sequentially through electric capacity C2 and electric capacity C7 and be connected to diode D2 positive pole, electric capacity C2 and electric capacity C7 node ground connection；Two
Pole pipe D1 negative pole is as detection output voltage signal positive output end, and diode D2 positive pole is negative as detection output voltage signal
Output end.The diode uses BSS83N.
Further, the balance chopper circuit structure is：Signal positive input terminal passes sequentially through resistance R2 and resistance R3 and connected
It is connected to metal-oxide-semiconductor Q1 grid；Metal-oxide-semiconductor Q1 drain electrodes are connected to VCC, and it drains is grounded by resistance R1 and electric capacity C1 respectively, metal-oxide-semiconductor
Q1 drain electrode passes sequentially through electric capacity C5 and resistance R7 is connected to metal-oxide-semiconductor Q2 source electrode；Resistance R2 and resistance R3 node pass through electricity
Hold the source electrode that C8 is connected to metal-oxide-semiconductor Q2, electric capacity C8 is grounded by resistance R9 and electric capacity C9 respectively；Signal negative input end passes through resistance
R6 is connected to electric capacity C5 and resistance R7 node, and electric capacity C8 and resistance R9 node are connected to VCC, metal-oxide-semiconductor Q1 source electrode and MOS
Pipe Q2 drain electrode is connected as signal output part, and signal output part is grounded by resistance R5 and electric capacity C6 respectively, signal output part
Resistance R6 and resistance R7 node are also connected to by electric capacity C3.The metal-oxide-semiconductor uses ADG409.
Further, the amplification circuit structure is：Signal input part by electric capacity C20 connecting triodes Q3 base stage,
Electric capacity C16 and electric capacity C18 are parallel between triode Q3 base stage and colelctor electrode；Triode Q3 base stage is connect by resistance R25
Ground, its emitter stage passes sequentially through electric capacity C23 and resistance R26 ground connection, and its colelctor electrode is connected to the negative of amplifier U1B by resistance R19
Input；Be connected with electric capacity C19 between amplifier U1B positive input terminal and negative input end, its positive input terminal ground connection, its input and
Electric capacity C10 is connected between output end, resistance R10, resistance R11 and resistance are also in series between its its input and output end
R12；Resistance 10 and resistance R11 node are grounded by polar capacitor C14, and resistance 11 and resistance R12 node pass through polarity electricity
Hold C15 to be grounded, resistance 11 and resistance R12 node are grounded by resistance R15；Triode Q3 emitter stage passes sequentially through resistance
R21 and electric capacity C22, which are connected on integrated transporting discharging U1B output end, electric capacity C22, is in series with resistance R24, amplifier U1B output end
Pass sequentially through resistance R24, resistance R23, resistance R22 and be connected to VCC, resistance R22 and resistance R23 node and connect by resistance C24
Ground；Amplifier U1B output end is used as amplified signal output end.The triode, which belongs to, uses MMBT5089LTI, the amplifier U1B
Use OP400G.
Further, the filter circuit construction is：Signal input part passes sequentially through reversed polarity electric capacity C11, positive pole
Property electric capacity C12, resistance R13 be connected to amplifier U1A negative input end, amplifier U1A positive input terminal ground connection；Amplifier U1A's is negative defeated
Enter end and pass sequentially through resistance R20 and resistance R16 to be connected to its output end, in parallel and resistance after resistance R18 and electric capacity C17 series connection
On R20；Amplifier U1A output ends pass through resistance R17 and electricity respectively by being used as signal output part, signal output part after resistance R14
Hold C13 ground connection.
Further, the AD Acquisition Circuit includes ADS83161.
Further, the AD Acquisition Circuit includes STM32.
Claims (7)
1. a kind of novel microwave signal power detection module, it is characterised in that including：
Detecting circuit：The microwave signal of input is converted into the detection output voltage signal of differential state to balance chopper circuit；
Balance chopper circuit：Detection output voltage signal is received, exchange will be converted into for the detection output voltage signal of direct current
Square-wave signal is exported to amplifying circuit；
Amplifying circuit：The amplitude of square-wave signal is improved, filter circuit is sent to after amplification；
Filter circuit：Eliminate after the DC bias signal in the square-wave signal after amplification, filtering interference signals, transmit a signal to
AD acquisition modules；AD acquisition modules：The signal received is converted into data signal by analog signal and is sent to single chip circuit；
Single chip circuit：Data signal is received, with external equipment line number is entered after carrying out correction process using single-chip microcomputer internal processes
According to communication.
2. a kind of novel microwave signal power detection module according to claim 1, it is characterised in that the detecting circuit
Structure is：Microwave signal input passes sequentially through electric capacity C4 and resistance R4 and is connected to diode D1 positive pole and bearing for diode D2
Pole, electric capacity C4 and resistance R4 node are grounded by resistance R8, and diode D1 negative pole passes sequentially through electric capacity C2 and electric capacity C7 and connected
It is connected to the node ground connection of diode D2 positive pole, electric capacity C2 and electric capacity C7；Diode D1 negative pole is believed as detection output voltage
Number positive output end, diode D2 positive pole is used as detection output voltage signal negative output terminal.
3. a kind of novel microwave signal power detection module according to claim 1, it is characterised in that the balance copped wave
Circuit structure is：Signal positive input terminal passes sequentially through resistance R2 and resistance R3 is connected to metal-oxide-semiconductor Q1 grid；Metal-oxide-semiconductor Q1 drains
VCC is connected to, it drains is grounded by resistance R1 and electric capacity C1 respectively, and metal-oxide-semiconductor Q1 drain electrode passes sequentially through electric capacity C5 and resistance
R7 is connected to metal-oxide-semiconductor Q2 source electrode；Resistance R2 and resistance R3 node are connected to metal-oxide-semiconductor Q2 source electrode, electric capacity by electric capacity C8
C8 is grounded by resistance R9 and electric capacity C9 respectively；Signal negative input end is connected to electric capacity C5 and resistance R7 section by resistance R6
Point, electric capacity C8 and resistance R9 node are connected to VCC, and the drain electrode connection of metal-oxide-semiconductor Q1 source electrode and metal-oxide-semiconductor Q2 is used as signal output
End, signal output part is grounded by resistance R5 and electric capacity C6 respectively, signal output part also by electric capacity C3 be connected to resistance R6 and
Resistance R7 node.
4. a kind of novel microwave signal power detection module according to claim 1, it is characterised in that the amplifying circuit
Structure is：Signal input part is by electric capacity C20 connecting triodes Q3 base stage, and electric capacity C16 and electric capacity C18 are parallel to triode Q3
Base stage and colelctor electrode between；Triode Q3 base stage is grounded by resistance R25, and its emitter stage passes sequentially through electric capacity C23 and electricity
R26 ground connection is hindered, its colelctor electrode is connected to amplifier U1B negative input end by resistance R19；Amplifier U1B positive input terminal and negative defeated
Enter and be connected with electric capacity C19 between end, its positive input terminal ground connection is connected with electric capacity C10 between its input and output end, its its it is defeated
Enter and be also in series with resistance R10, resistance R11 and resistance R12 between end and output end；Resistance 10 and resistance R11 node pass through pole
Property electric capacity C14 ground connection, resistance 11 and resistance R12 node is grounded by polar capacitor C15, resistance 11 and resistance R12 node
It is grounded by resistance R15；Triode Q3 emitter stage passes sequentially through resistance R21 and electric capacity C22 is connected to the defeated of integrated transporting discharging U1B
Go out and resistance R24 is in series with end, electric capacity C22, amplifier U1B output end passes sequentially through resistance R24, resistance R23, resistance R22 and connected
The node for being connected to VCC, resistance R22 and resistance R23 is grounded by resistance C24；Amplifier U1B output end is exported as amplified signal
End.
5. a kind of novel microwave signal power detection module according to claim 1, it is characterised in that the filter circuit
Structure is：Signal input part passes sequentially through reversed polarity electric capacity C11, normal polarity electric capacity C12, resistance R13 and is connected to amplifier U1A
Negative input end, amplifier U1A positive input terminal ground connection；Amplifier U1A negative input end passes sequentially through resistance R20 and resistance R16 and connected
Its output end is connected to, after resistance R18 and electric capacity C17 connect in parallel and resistance R20；After amplifier U1A output ends are by resistance R14
As signal output part, signal output part is grounded by resistance R17 and electric capacity C13 respectively.
6. a kind of novel microwave signal power detection module according to claim 1, it is characterised in that the AD gathers mould
Block includes ADS83161.
7. a kind of novel microwave signal power detection module according to claim 1, it is characterised in that the AD gathers mould
Block includes STM32.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201720062563.2U CN206497149U (en) | 2017-01-18 | 2017-01-18 | A kind of novel microwave signal power detection module |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201720062563.2U CN206497149U (en) | 2017-01-18 | 2017-01-18 | A kind of novel microwave signal power detection module |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107516410A (en) * | 2017-09-18 | 2017-12-26 | 合肥瑞纳表计有限公司 | A kind of main frame MBUS receiving circuits applied to multinode |
| CN108230652A (en) * | 2017-10-16 | 2018-06-29 | 瑞纳智能设备股份有限公司 | A kind of high-power MBUS master circuits |
| CN109799386A (en) * | 2017-11-17 | 2019-05-24 | 华为技术有限公司 | A kind of power detector |
| CN112684246A (en) * | 2020-12-17 | 2021-04-20 | 东南大学 | High-sensitivity microwave power detection system |
| CN107516410B (en) * | 2017-09-18 | 2024-05-03 | 瑞纳智能设备股份有限公司 | Be applied to host computer MBUS receiving circuit of multinode |
-
2017
- 2017-01-18 CN CN201720062563.2U patent/CN206497149U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107516410A (en) * | 2017-09-18 | 2017-12-26 | 合肥瑞纳表计有限公司 | A kind of main frame MBUS receiving circuits applied to multinode |
| CN107516410B (en) * | 2017-09-18 | 2024-05-03 | 瑞纳智能设备股份有限公司 | Be applied to host computer MBUS receiving circuit of multinode |
| CN108230652A (en) * | 2017-10-16 | 2018-06-29 | 瑞纳智能设备股份有限公司 | A kind of high-power MBUS master circuits |
| CN108230652B (en) * | 2017-10-16 | 2024-05-03 | 瑞纳智能设备股份有限公司 | High-power MBUS master controller circuit |
| CN109799386A (en) * | 2017-11-17 | 2019-05-24 | 华为技术有限公司 | A kind of power detector |
| CN109799386B (en) * | 2017-11-17 | 2022-03-29 | 华为技术有限公司 | Power detector |
| CN112684246A (en) * | 2020-12-17 | 2021-04-20 | 东南大学 | High-sensitivity microwave power detection system |
| CN112684246B (en) * | 2020-12-17 | 2023-08-08 | 东南大学 | High-sensitivity microwave power detection system |
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