CN205910337U - Millimeter wave imaging device - Google Patents
Millimeter wave imaging device Download PDFInfo
- Publication number
- CN205910337U CN205910337U CN201620834557.XU CN201620834557U CN205910337U CN 205910337 U CN205910337 U CN 205910337U CN 201620834557 U CN201620834557 U CN 201620834557U CN 205910337 U CN205910337 U CN 205910337U
- Authority
- CN
- China
- Prior art keywords
- signal
- outfan
- local oscillation
- input
- frequency
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000003384 imaging method Methods 0.000 title claims abstract description 38
- 239000013078 crystal Substances 0.000 claims abstract description 34
- 230000010355 oscillation Effects 0.000 claims description 81
- 238000000034 method Methods 0.000 claims description 12
- 230000015572 biosynthetic process Effects 0.000 abstract 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- VIKNJXKGJWUCNN-XGXHKTLJSA-N norethisterone Chemical compound O=C1CC[C@@H]2[C@H]3CC[C@](C)([C@](CC4)(O)C#C)[C@@H]4[C@@H]3CCC2=C1 VIKNJXKGJWUCNN-XGXHKTLJSA-N 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 230000011664 signaling Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Landscapes
- Radar Systems Or Details Thereof (AREA)
Abstract
The utility model belongs to millimeter wave formation of image field provides a millimeter wave imaging device. The utility model discloses an adopt including the crystal oscillator, the ware is divided to the merit, millimeter wave transceiver module, local oscillator signal processing module, first first detector and image processing module's millimeter wave imaging device, divide the ware to carry out power distribution and export clock signal and the local oscillator signal the oscillating signal that the crystal oscillator produced by the merit, first local oscillator signal is handled and exported by local oscillator signal processing module to the local oscillator signal, an intermediate frequency signal is handled and exported by millimeter wave transceiver module to the echo signal that the object that awaits measuring reflects, carry out a first local oscillator signal and an intermediate frequency signal mixing and export the 2nd intermediate frequency signal by first first detector, handle and form images the 2nd intermediate frequency signal by image processing module, because the local oscillator signal source of millimeter wave transceiver module's clock source and first first detector is regarded as simultaneously to the crystal oscillator, therefore, the device does not need additionally to increase the local oscillator signal source, the circuit structure is simplified, thus the cost is reduced.
Description
Technical field
This utility model belongs to mm-wave imaging technical field, more particularly, to a kind of mm-wave imaging device.
Background technology
Millimeter wave is the electromagnetic wave that a kind of wavelength is 1～10 millimeter, and it has preferable penetrance, reflexive and higher
Spatial resolution.Millimeter wave energy readily penetrates through fabric, nonmetallic carton, all kinds of case and bag etc., to by gold such as ferrum, steel, aluminium alloys
Belong to the cutter that material makes, dagger, iron rod, umbrella rod etc. have stronger reflexive, and be easy to be absorbed by liquid.Therefore,
Mm-wave imaging technology is widely used in the fields such as personnel's safety check, navigation for aircraft landing.
Existing mm-wave imaging device is included at crystal oscillator, millimeter wave transceiving module, local oscillation signal source, frequency mixer and image
Reason module etc., as shown in figure 1, wherein, crystal oscillator provides clock signal for millimeter wave transceiving module, and local oscillation signal source carries for frequency mixer
For local oscillation signal, millimeter wave transceiving module is launched millimeter-wave signal to object under test and is received the echo letter of object under test reflection
Number, and echo-signal is processed and provides radiofrequency signal for frequency mixer, local oscillation signal is carried out by frequency mixer with radiofrequency signal
It is mixed and exports intermediate-freuqncy signal, image processing module forms the image corresponding with object under test according to intermediate-freuqncy signal.
However, existing mm-wave imaging device is to provide clock to believe respectively using crystal oscillator and extra local oscillation signal source
Number and local oscillation signal, and crystal oscillator originally can provide oscillator signal as source oscillation signal, but is not sufficiently utilized, from
And lead to whole system to become complex redundancy, and relatively costly.
Utility model content
The purpose of this utility model is to provide a kind of mm-wave imaging device it is intended to solve existing mm-wave imaging dress
Putting is to provide clock signal and local oscillation signal respectively using crystal oscillator and extra local oscillation signal source, and crystal oscillator is as source oscillation signal
Sufficiently do not utilized, lead to whole system to become complex redundancy, and relatively costly problem.
This utility model is achieved in that a kind of mm-wave imaging device, including crystal oscillator, millimeter wave transceiving module,
One frequency mixer and image processing module, described crystal oscillator produces oscillator signal, the rf inputs of described first frequency mixer and intermediate frequency
Outfan is connected with the outfan of described millimeter wave transceiving module and the input of described image processing module respectively, described millimeter
Ripple imaging device also includes power splitter and local oscillation signal processing module；
The signal input part of described power splitter is connected with the outfan of described crystal oscillator, the first signal output of described power splitter
End and secondary signal outfan are defeated with the clock end of described millimeter wave transceiving module and described local oscillation signal processing module respectively
Enter end to connect, the outfan of described local oscillation signal processing module is connected with the local oscillator input of described first frequency mixer；
Described power splitter carries out power distribution and exports clock signal and local oscillation signal to described oscillator signal；Described local oscillator
Signal processing module is processed to described local oscillation signal and is exported the first local oscillation signal；Described millimeter wave transceiving module is described
Under the triggering of clock signal, launch millimeter-wave signal to object under test and receive the echo-signal of described object under test reflection, and
Described echo-signal and the second local oscillation signal are mixed to export the first intermediate-freuqncy signal；Described first frequency mixer is by described
One local oscillation signal and described first intermediate-freuqncy signal are mixed and are exported the second intermediate-freuqncy signal；Described image processing module is to described
Second intermediate-freuqncy signal is processed and is formed the corresponding image of described object under test.
This utility model pass through using include crystal oscillator, power splitter, millimeter wave transceiving module, local oscillation signal processing module, the
The mm-wave imaging device of one frequency mixer and image processing module, carries out power by power splitter to the oscillator signal that crystal oscillator produces and divides
Join and export clock signal and local oscillation signal, by local oscillation signal processing module, local oscillation signal is processed and exported the first local oscillator
Signal, is processed and is exported the first intermediate-freuqncy signal by the echo-signal of millimeter wave transceiving module measuring targets reflection, by the
First local oscillation signal and the first intermediate-freuqncy signal are mixed and are exported the second intermediate-freuqncy signal, by image processing module by one frequency mixer
Second intermediate-freuqncy signal is processed and is formed the image corresponding with object under test, because crystal oscillator is simultaneously as millimeter wave transceiving
The local oscillation signal source of the clock source of module and the first frequency mixer, therefore, this device is not required to additionally increase local oscillation signal source, simplifies
Circuit structure, reduces cost.
Brief description
Fig. 1 is the structural representation of the mm-wave imaging device that prior art provides；
Fig. 2 is the modular structure schematic diagram of the mm-wave imaging device that this utility model embodiment provides；
Fig. 3 is the electrical block diagram of the mm-wave imaging device that this utility model embodiment provides.
Specific embodiment
In order that the purpose of this utility model, technical scheme and advantage become more apparent, below in conjunction with accompanying drawing and enforcement
Example, is further elaborated to this utility model.It should be appreciated that specific embodiment described herein is only in order to explain
This utility model, is not used to limit this utility model.
This utility model embodiment includes crystal oscillator, power splitter, millimeter wave transceiving module, local oscillation signal process mould by adopting
The mm-wave imaging device of block, the first frequency mixer and image processing module, is carried out to the oscillator signal that crystal oscillator produces by power splitter
Power distribution simultaneously exports clock signal and local oscillation signal, and local oscillation signal is processed and exported by local oscillation signal processing module with
One local oscillation signal, is processed and exported by the echo-signal of millimeter wave transceiving module measuring targets reflection the first intermediate frequency letter
Number, by the first frequency mixer, the first local oscillation signal and the first intermediate-freuqncy signal are mixed and are exported the second intermediate-freuqncy signal, by image
Processing module is processed to the second intermediate-freuqncy signal and is formed the image corresponding with object under test, because crystal oscillator is simultaneously as milli
The local oscillation signal source of the clock source of metric wave transceiver module and the first frequency mixer, therefore, this device is not required to additionally increase local oscillation signal
Source, simplifies circuit structure, reduces cost.
Fig. 2 shows the modular structure of the mm-wave imaging device that this utility model embodiment provides, for convenience of description,
Illustrate only the part related to this utility model embodiment, details are as follows:
A kind of mm-wave imaging device, including crystal oscillator 1, millimeter wave transceiving module 3, the first frequency mixer 5 and image procossing mould
Block 6, crystal oscillator 1 produces oscillator signal, the rf inputs of the first frequency mixer 5 and medium frequency output end respectively with millimeter wave transceiving module
The input of 3 outfan and image processing module 6 connects, and mm-wave imaging device is also included at power splitter 2 and local oscillation signal
Reason module 4.
The signal input part of power splitter 2 is connected with the outfan of crystal oscillator 1, the first signal output part of power splitter 2 and second
Signal output part is connected with the clock end of millimeter wave transceiving module 3 and the input of local oscillation signal processing module 4 respectively, and local oscillator is believed
The outfan of number processing module 4 is connected with the local oscillator input of the first frequency mixer 5.
Power splitter 2 carries out power distribution and exports clock signal and local oscillation signal to described oscillator signal；At local oscillation signal
Reason module 4 is processed to described local oscillation signal and is exported the first local oscillation signal；Millimeter wave transceiving module 3 is in described clock signal
Triggering under, to object under test launch millimeter-wave signal and receive object under test reflection echo-signal, and by echo-signal with
Second local oscillation signal is mixed to export the first intermediate-freuqncy signal；First frequency mixer 5 is by described first local oscillation signal and described the
One intermediate-freuqncy signal is mixed and is exported the second intermediate-freuqncy signal；Image procossing mould 6 tuber evidence is processed to the second intermediate-freuqncy signal
And form the image corresponding with object under test.
In this utility model embodiment, the frequency of oscillation of crystal oscillator 1 is fixed frequency and the frequency with the first intermediate-freuqncy signal
Equal, the such as frequency of oscillation of crystal oscillator 1 is 200mhz with the frequency of the first intermediate-freuqncy signal.
In this utility model embodiment, the phase place of the second local oscillation signal is identical with the phase place of first echo signal.
In this utility model embodiment, power splitter 2 is one point of multi-path power divider.In actual applications, power splitter 2 is permissible
It is passive multi-path power divider and multiple-path coupler etc. or active multi-path power splitter, multiple-path coupler and variable connector etc..
In this utility model embodiment, crystal oscillator 1 is simultaneously as the clock source of millimeter wave transceiving module 3 and the first frequency mixer
5 local oscillation signal source, the utilization rate of crystal oscillator 1 is higher, can save extra local oscillation signal source, simplifies wiring so that millimeter
Ripple imaging device is easier to integrated and miniaturization, reduces cost simultaneously.
Fig. 3 shows the circuit structure of the mm-wave imaging device that this utility model embodiment provides, for convenience of description,
Illustrate only the part related to this utility model embodiment, details are as follows:
As this utility model one embodiment, millimeter wave transceiving module 3 include the first signal source 30, secondary signal source 31,
First signal processing unit 32, secondary signal processing unit 33, transmitting antenna 36, reception antenna 37, echo signal processing unit
34 and second frequency mixer 35.
Wherein, the clock end of the first signal source 30 and the clock end in secondary signal source 31 connect altogether as millimeter wave transceiving module
3 clock end, the outfan of the first signal source 30 and the outfan in secondary signal source 31 respectively with the first signal processing unit 32
Input and the input of secondary signal processing unit 33 connect, the outfan of the first signal processing unit 32 and transmitting antenna
36 connections, the input of echo signal processing unit 34 is connected with reception antenna 37, the local oscillation signal input of the second frequency mixer 35
End and radio-frequency (RF) signal input end respectively with the outfan of secondary signal processing unit 33 and the output of echo signal processing unit 334
End connects, and the medium frequency output end of the second frequency mixer 35 is the outfan of millimeter wave transceiving module 3.
First signal source 30 and secondary signal source 31 export the first letter under the triggering of described clock signal simultaneously and respectively
Number and secondary signal；First signal processing unit 32 carries out process of frequency multiplication and exports millimeter-wave signal to described first signal, sends out
Penetrate antenna 36 to launch millimeter-wave signal to object under test；Secondary signal processing unit 33 carries out process of frequency multiplication simultaneously to secondary signal
Export the second local oscillation signal；Reception antenna 37 receives the echo-signal of object under test reflection；Echo signal processing unit 34 to return
Ripple signal is filtered with processing and amplifying and exports first echo signal；Second frequency mixer 35 is by the second local oscillation signal and first time
Ripple signal carries out Frequency mixing processing and exports the first intermediate-freuqncy signal.
In this utility model embodiment, the first signal source 30 and secondary signal source 31 are swept signal source, and that is, first
The frequency of the sine wave signal of signal source 30 and secondary signal source 31 output is repeatedly scanned with time within the specific limits, and frequency sweep is believed
Number source is made up of the phaselocked loop that can input external reference signal.First signal source 30 and the swept frequency scope in secondary signal source 31
Can be configured according to the actual requirements with swept bandwidth.
In this utility model embodiment, the millimeter-wave signal that transmitting antenna 36 sends is the frequency sweep letter with certain bandwidth
Number, and the frequency range of the frequency range of echo-signal that receives of reception antenna 37 and the millimeter-wave signal of transmitting antenna transmitting
Identical.
In this utility model embodiment, the second frequency mixer 35 is difference frequency mixers.
As this utility model one embodiment, the first signal processing unit 32 includes the first band filter being sequentially connected
321st, the first amplifier 322, the first doubler 323, the second amplifier 324, the second band filter 325, attenuator 326 and ring
Shape device 327.Wherein, the outfan of the input of the first band filter 321 and circulator 327 is respectively the first signal processing list
The input of unit 32 and outfan.
As this utility model one embodiment, secondary signal processing unit 33 includes the 3rd band filter being sequentially connected
331st, the 3rd amplifier 332, the second doubler 333, the 4th amplifier 334 and the 4th band filter 335.Wherein, the 3rd band
The outfan of the input of bandpass filter 331 and the 4th band filter 335 is respectively the input of secondary signal processing unit 33
End and outfan.
In this utility model embodiment, the first doubler 323 and the second doubler 333 are varactor doubler.
As this utility model one embodiment, echo signal processing unit 34 includes the 5th amplifier 342 being sequentially connected
With the 5th band filter 341.Wherein, the outfan difference of the input of the 5th amplifier 342 and the 5th band filter 341
Input for echo signal processing unit 34 and outfan.
As this utility model one embodiment, local oscillation signal processing module 4 includes the 6th band filter being sequentially connected
40 and the 6th amplifier 41.Wherein, the outfan of the input of the 6th band filter 40 and the 6th amplifier 41 is respectively this
Shake the input of signal processing module 4 and outfan.
As this utility model one embodiment, the first frequency mixer 5 is inphase/orthogonal frequency mixer (i/q frequency mixer).Homophase/
Orthogonal mixer is made up of two frequency mixers, 90 degree of electric bridges and a homophase power splitter.
In actual applications, the frequency range of the first signal of the first signal source 30 output is 16.1ghz～20.1ghz,
First signal sequentially passes through the first band filter 321, the first amplifier 322 and the first doubler 323 and carries out clutter filter respectively
Remove, amplify and two process of frequency multiplication after produce frequency range be 32.2ghz～40.2ghz millimeter-wave signal, due to the first frequency multiplication
The decay of device 323 is larger, therefore, the millimeter-wave signal of the first doubler 323 output need to sequentially pass through the second amplifier 324,
After second band filter 325 and attenuator 326 are amplified respectively, fundamental wave and triple-frequency harmonics filter, power adjustment processes,
Launched by transmitting antenna 36, and the effect of circulator 327 is to prevent noise signal that transmitting antenna 36 receives to front
Hold the impact of each device；The frequency range of the secondary signal of secondary signal source 31 output is 16ghz～20ghz, secondary signal
Source sequentially passes through the 3rd band filter 331, the 3rd amplifier 332 and the second doubler 333 and carries out clutter respectively and filters, amplifies
And two produce the second local oscillation signal that frequency range is 32ghz～40ghz after process of frequency multiplication, the second local oscillation signal sequentially passes through the
After four amplifiers 334 and the 4th band filter 335 are amplified respectively, fundamental wave and triple-frequency harmonics filter, export to second mixed
The local oscillation signal input of frequency device 35.The initial swept frequency of the first signal source 30 is not fixing 16.1ghz, and swept bandwidth is not
It is fixing 4ghz, the initial swept frequency in secondary signal source 31 is not fixing 16ghz, and swept bandwidth is not fixing
4ghz, only need to ensure to exist one between the initial swept frequency of the first signal source 30 and the initial swept frequency in secondary signal source 31
The difference on the frequency of individual fixation, this difference on the frequency is equal with the frequency of the first intermediate-freuqncy signal.The echo-signal that reception antenna 37 receives
Frequency range is 32.2ghz～40.2ghz, and described echo-signal is sequentially passed through the 5th amplifier by echo signal processing unit 34
342 and the 5th band filter 341 be amplified respectively, clutter filters process and generates first echo signal, and by the first echo
Signal output to the second frequency mixer 35 radio-frequency (RF) signal input end.
In actual applications, the first signal source 30 and secondary signal source 31 transmission signal simultaneously, by the first signal and
The transmission path (length of transmission line) of secondary signal carries out relative set so that inputting to the second local oscillator of the second frequency mixer 35
The phase place of signal and first echo signal remains definitely equal, so, the first intermediate-freuqncy signal of the second frequency mixer 35 output
Frequency be always fixed value (as 200mhz).Because the frequency of oscillation of crystal oscillator 1 is equal with the frequency of the first intermediate-freuqncy signal, because
This, the frequency of local oscillation signal is 200mhz, local oscillation signal filtering and the 6th amplifier 41 through the 6th band filter 40
Form the first local oscillation signal (frequency be 200mhz), the first frequency mixer 5 is by the first local oscillation signal and the first intermediate-freuqncy signal after amplification
Output in-phase signal and orthogonal signalling two-way direct current signal after being demodulated, image processing module 6 is to in-phase signal and orthogonal letter
Number it is acquired and processes, and be imaged according to result measuring targets.In actual applications, mm-wave imaging device
Also include display module 8, display module 8 is used for the image corresponding with object under test is shown.
As this utility model one embodiment, mm-wave imaging device also includes feedback module 7, and the first of feedback module 7
Outfan and the second outfan are connected with the feedback input end of power splitter 2 and the controlled end of image processing module 6 respectively, meanwhile,
The feedback output end of power splitter 2 is connected with the input of crystal oscillator 1.In actual applications, feedback module 7 is specially fpga
(field-programmable gate array, programmable gate array) programmable control panel.
As this utility model one embodiment, mm-wave imaging device also includes power module, and power module is whole dress
Put and be powered.
This utility model embodiment includes crystal oscillator, power splitter, millimeter wave transceiving module, local oscillation signal process mould by adopting
The mm-wave imaging device of block, the first frequency mixer and image processing module, is carried out to the oscillator signal that crystal oscillator produces by power splitter
Power distribution simultaneously exports clock signal and local oscillation signal, and local oscillation signal is processed and exported by local oscillation signal processing module with
One local oscillation signal, is processed and exported by the echo-signal of millimeter wave transceiving module measuring targets reflection the first intermediate frequency letter
Number, by the first frequency mixer, the first local oscillation signal and the first intermediate-freuqncy signal are mixed and are exported the second intermediate-freuqncy signal, by image
Processing module is processed to the second intermediate-freuqncy signal and is formed the image corresponding with object under test, because crystal oscillator is simultaneously as milli
The local oscillation signal source of the clock source of metric wave transceiver module and the first frequency mixer, therefore, this device is not required to additionally increase local oscillation signal
Source, simplifies circuit structure, reduces cost.
The foregoing is only preferred embodiment of the present utility model, not in order to limit this utility model, all this
Any modification, equivalent and improvement made within the spirit of utility model and principle etc., should be included in this utility model
Protection domain within.
Claims (10)
1. a kind of mm-wave imaging device, including crystal oscillator, millimeter wave transceiving module, the first frequency mixer and image processing module, institute
State crystal oscillator and produce oscillator signal, the rf inputs of described first frequency mixer and medium frequency output end respectively with described millimeter wave transceiving
The input of the outfan of module and described image processing module connects it is characterised in that described mm-wave imaging device also wraps
Include power splitter and local oscillation signal processing module；
The signal input part of described power splitter is connected with the outfan of described crystal oscillator, the first signal output part of described power splitter and
Secondary signal outfan respectively with the clock end of described millimeter wave transceiving module and the input of described local oscillation signal processing module
Connect, the outfan of described local oscillation signal processing module is connected with the local oscillator input of described first frequency mixer；
Described power splitter carries out power distribution and exports clock signal and local oscillation signal to described oscillator signal；Described local oscillation signal
Processing module is processed to described local oscillation signal and is exported the first local oscillation signal；Described millimeter wave transceiving module is in described clock
Under the triggering of signal, launch millimeter-wave signal to object under test and receive the echo-signal of described object under test reflection, and by institute
State echo-signal to be mixed with the second local oscillation signal to export the first intermediate-freuqncy signal；Described first frequency mixer is by described first
The signal that shakes is mixed and is exported the second intermediate-freuqncy signal with described first intermediate-freuqncy signal；Described image processing module is to described second
Intermediate-freuqncy signal is processed and is formed the image corresponding with described object under test.
2. mm-wave imaging device as claimed in claim 1 is it is characterised in that described millimeter wave transceiving module includes the first letter
Number source, secondary signal source, the first signal processing unit, secondary signal processing unit, transmitting antenna, reception antenna, echo-signal
Processing unit and the second frequency mixer；
The clock end in the clock end of described first signal source and described secondary signal source connects altogether as described millimeter wave transceiving module
Clock end, the outfan in the outfan of described first signal source and described secondary signal source respectively with described first signal processing
The input of the input of unit and described secondary signal processing unit connects, the outfan of described first signal processing unit with
Described transmitting antenna connects, and the input of described echo signal processing unit is connected with described reception antenna, described second mixing
The local oscillation signal input of device and radio-frequency (RF) signal input end respectively with the outfan of described secondary signal processing unit and described time
The outfan of ripple signal processing unit connects, and the medium frequency output end of described second frequency mixer is the defeated of described millimeter wave transceiving module
Go out end；
Described first signal source and described secondary signal source export the first letter under the triggering of described clock signal simultaneously and respectively
Number and secondary signal；Described first signal processing unit carries out process of frequency multiplication and exports millimeter-wave signal to described first signal,
Described transmitting antenna launches described millimeter-wave signal to described object under test；Described secondary signal processing unit is to described second
Signal carries out process of frequency multiplication and exports the second local oscillation signal；Described reception antenna receives the echo letter of described object under test reflection
Number；Described echo signal processing unit is filtered to described echo-signal and processing and amplifying export first echo signal；Institute
State the second frequency mixer described second local oscillation signal and described first echo signal to be carried out Frequency mixing processing and exports the first intermediate frequency letter
Number.
3. mm-wave imaging device as claimed in claim 2 is it is characterised in that described first signal processing unit is included successively
Connected the first band filter, the first amplifier, the first doubler, the second amplifier, the second band filter, attenuator and
Circulator；
The outfan of the input of described first band filter and described circulator is respectively described first signal processing unit
Input and outfan.
4. mm-wave imaging device as claimed in claim 2 is it is characterised in that described secondary signal processing unit is included successively
Connected the 3rd band filter, the 3rd amplifier, the second doubler, the 4th amplifier and the 4th band filter；
The outfan of the input of described 3rd band filter and described 4th band filter is respectively described secondary signal
The input of processing unit and outfan.
5. mm-wave imaging device as claimed in claim 2 is it is characterised in that described echo signal processing unit is included successively
The 5th connected amplifier and the 5th band filter；
The outfan of the input of described 5th amplifier and described 5th band filter is respectively described echo signal processing
The input of unit and outfan.
6. mm-wave imaging device as claimed in claim 2 it is characterised in that the phase place of described second local oscillation signal with described
The phase place of first echo signal is identical.
7. mm-wave imaging device as claimed in claim 2 is it is characterised in that the frequency of oscillation of described crystal oscillator and described first
The frequency of intermediate-freuqncy signal is equal.
8. mm-wave imaging device as claimed in claim 2 is it is characterised in that described first signal source and described secondary signal
Source is swept signal source.
9. mm-wave imaging device as claimed in claim 1 is it is characterised in that described local oscillation signal processing module is included successively
The 6th connected band filter and the 6th amplifier；
The outfan of the input of described 6th band filter and described 6th amplifier is respectively described local oscillation signal and processes
The input of module and outfan.
10. mm-wave imaging device as claimed in claim 1 is it is characterised in that described first frequency mixer mixes for inphase/orthogonal
Frequency device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620834557.XU CN205910337U (en) | 2016-08-03 | 2016-08-03 | Millimeter wave imaging device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620834557.XU CN205910337U (en) | 2016-08-03 | 2016-08-03 | Millimeter wave imaging device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205910337U true CN205910337U (en) | 2017-01-25 |
Family
ID=57803350
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620834557.XU Expired - Fee Related CN205910337U (en) | 2016-08-03 | 2016-08-03 | Millimeter wave imaging device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205910337U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106019276A (en) * | 2016-08-03 | 2016-10-12 | 华讯方舟科技有限公司 | Millimeter-wave imaging device |
| CN106932831A (en) * | 2017-03-10 | 2017-07-07 | 四川莱源科技有限公司 | Revolution door type radar imagery safety check instrument |
| CN107070464A (en) * | 2017-06-13 | 2017-08-18 | 吉林大学 | A kind of Multi-path synchronous frequency division multiplexing millimeter wave swept-frequency signal generation device and method |
-
2016
- 2016-08-03 CN CN201620834557.XU patent/CN205910337U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106019276A (en) * | 2016-08-03 | 2016-10-12 | 华讯方舟科技有限公司 | Millimeter-wave imaging device |
| CN106019276B (en) * | 2016-08-03 | 2018-11-23 | 华讯方舟科技有限公司 | A kind of mm-wave imaging device |
| US11156710B2 (en) | 2016-08-03 | 2021-10-26 | China Communication Technology Co., Ltd. | Millimeter wave imaging apparatus |
| CN106932831A (en) * | 2017-03-10 | 2017-07-07 | 四川莱源科技有限公司 | Revolution door type radar imagery safety check instrument |
| CN107070464A (en) * | 2017-06-13 | 2017-08-18 | 吉林大学 | A kind of Multi-path synchronous frequency division multiplexing millimeter wave swept-frequency signal generation device and method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106019276B (en) | A kind of mm-wave imaging device | |
| CN101866018B (en) | Radio frequency receiving and transmitting front end for millimeter wave holographic imaging security check system | |
| CN205910337U (en) | Millimeter wave imaging device | |
| CN101262239B (en) | Mm wave RF receiving/transmission device | |
| CN206431285U (en) | A kind of Ku wave bands continuous wave radar radio circuit | |
| CN102707273B (en) | THz radar transmitting/receiving front end | |
| CN203872167U (en) | Millimeter wave integrated transmit-receive channel | |
| CN205829606U (en) | A kind of based on DDS with the frequency synthesizer module of fractional frequency-division phase-locked loop | |
| CN206164476U (en) | Ultra wide band millimeter wave down coversion system | |
| CN109462414A (en) | A kind of 18-30GHz front end receiver component | |
| CN109521490A (en) | A kind of millimeter wave array radiation meter front end of achievable analog beam figuration | |
| CN106067815A (en) | A kind of based on DDS with the frequency synthesizer of fractional frequency-division phase-locked loop | |
| CN108459305A (en) | Terahertz radar transmit-receive system and single-shot receive Terahertz coherent radar more | |
| CN209526721U (en) | A kind of millimeter wave transceiving equipment | |
| CN108459326A (en) | Terahertz radar transmit-receive system and single-shot receive Terahertz coherent radar more | |
| CN105445706B (en) | With frequency noise jamming compensation device and X-band single antenna continuous-wave radar system | |
| CN204180057U (en) | Modulate emission module | |
| CN207283538U (en) | A kind of millimeter wave multichannel transmitting-receiving system | |
| CN208836123U (en) | A kind of 18-30GHz front end receiver component | |
| CN108896965B (en) | 200GHz frequency band signal receiving and transmitting measurement system | |
| CN203747755U (en) | Millimeter-wave down-conversion assembly | |
| US6411252B1 (en) | Narrow band millimeter wave VNA for testing automotive collision avoidance radar components | |
| CN207704020U (en) | A kind of integrated R-T units of 94GHz | |
| CN113777570B (en) | Millimeter wave radar interference testing device and electronic equipment | |
| Forouzandeh et al. | Low-cost chipless RFID reader for polarizer tags |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PP01 | Preservation of patent right |
Effective date of registration: 20210630 Granted publication date: 20170125 |
|
| PP01 | Preservation of patent right | ||
| PD01 | Discharge of preservation of patent |
Date of cancellation: 20230421 Granted publication date: 20170125 |
|
| PD01 | Discharge of preservation of patent | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20230802 Address after: 518000 404, building 37, chentian Industrial Zone, chentian community, Xixiang street, Bao'an District, Shenzhen City, Guangdong Province Patentee after: Shenzhen Huaxun ark Photoelectric Technology Co.,Ltd. Patentee after: SHENZHEN INSTITUTE OF TERAHERTZ TECHNOLOGY AND INNOVATION Co.,Ltd. Address before: 518000 1 / F and 2 / F, building 37, chentian Industrial Zone, Baoan District, Shenzhen City, Guangdong Province Patentee before: CHINA COMMUNICATION TECHNOLOGY Co.,Ltd. Patentee before: SHENZHEN INSTITUTE OF TERAHERTZ TECHNOLOGY AND INNOVATION Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170125 |