CN106783476A - A kind of radially continuous ripple Terahertz of double frequency tiltedly notes pipe - Google Patents
A kind of radially continuous ripple Terahertz of double frequency tiltedly notes pipe Download PDFInfo
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- CN106783476A CN106783476A CN201611031076.6A CN201611031076A CN106783476A CN 106783476 A CN106783476 A CN 106783476A CN 201611031076 A CN201611031076 A CN 201611031076A CN 106783476 A CN106783476 A CN 106783476A
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J23/00—Details of transit-time tubes of the types covered by group H01J25/00
- H01J23/16—Circuit elements, having distributed capacitance and inductance, structurally associated with the tube and interacting with the discharge
- H01J23/24—Slow-wave structures, e.g. delay systems
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J23/00—Details of transit-time tubes of the types covered by group H01J25/00
- H01J23/02—Electrodes; Magnetic control means; Screens
- H01J23/06—Electron or ion guns
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J23/00—Details of transit-time tubes of the types covered by group H01J25/00
- H01J23/02—Electrodes; Magnetic control means; Screens
- H01J23/10—Magnet systems for directing or deflecting the discharge along a desired path, e.g. a spiral path
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- Optical Modulation, Optical Deflection, Nonlinear Optics, Optical Demodulation, Optical Logic Elements (AREA)
Abstract
Pipe, including axial symmetry metal top plate, axial symmetry metal base plate, two fan-shaped electron beams, two fan-shaped metal plate slow-wave structures, coaxial output waveguide outer barrel, coaxial output waveguide inner cylinder, axial symmetry collector and external magnetic field generation devices are tiltedly noted the present invention relates to a kind of radially continuous ripple Terahertz of double frequency；External magnetic field generation device produces the magnetostatic field along radial direction and axial direction in high frequency interaction region, two fan-shaped electron beams are under the guiding of magnetostatic field, transmitted along the opposite direction of radial direction, and fan-shaped metal plate slow-wave structures different from two structural parameters interact respectively, the kinetic energy of two fan-shaped electron beams is converted into two electromagnetic wave energies of different frequency, two electromagnetic waves of frequency for producing are radiate by coaxial output waveguide, two frequency electromagnetics can be simultaneously produced to export so that the whole working frequency tuning range of device is widened.
Description
Technical field
The invention belongs to continuous wave Terahertz vacuum electronic radiation source technical field, and in particular to one kind is operated in continuous wave
State, can simultaneously radiate two frequencies and be all higher than the double frequency footpath that 0.1 Terahertz, power output are all higher than 1 watt of terahertz wave band
Pipe is tiltedly noted to continuous wave Terahertz.
Background technology
Terahertz Technology has obtained great development in recent years, and the THz source with certain power output is Terahertz Technology
The basis of application.THz source based on vacuum electronics can produce power output higher, therefore equal Efforts To Develop both at home and abroad
The research of vacuum electronics THz source device, the experiment that Russian Applied Physics research institute has carried out 1THz gyrotrons is ground
Study carefully, generate frequency for 1.03THz, power output are the terahertz pulse signal of 1kW, the Feitian university of Japan has carried out terahertz
The hereby experimental study of wave band continuous wave gyrotron.Xibei Nuclear Techn Inst around overmoded surface-wave oscillator, in THz wave
Theoretical, numerical simulation and experiment aspect is produced also to carry out substantial amounts of research work, on CKP1000 and CKP3000 accelerators
Experiment has obtained the THz wave that frequency is 0.14THz and has exported, using radiated far field power density integration method, measured power difference
About 2.6MW and 5MW is reached, and has tentatively carried out the theoretical research work of 0.14THz coaxial configuration surface-wave oscillators.In order to
Power output more than kW magnitudes is reached, the additional guiding magnetic needed for the Cyclotron and surface-wave oscillator developed at this stage
Field is generally large, using superconducting coil motion of the high-intensity magnetic field to electron beam need to be produced to enter row constraint, causes developed Terahertz
Vacuum electron device external equipment is very huge, is unfavorable for the extensive use of Terahertz vacuum electron device.
With the development of Terahertz Technology and micro-nano technology technology, an important development of Terahertz vacuum electron device
Direction is the development of medium and small power output THz source device, can be used for the research fields such as medical imaging and detection.The type
Electron-beam voltage required for THz source is relatively low, electron beam density is smaller.Reduction and electronics with device operating voltages
The reduction of Shu Midu, required additional confining magnetic field intensity can also be reached using the spiral winding of permanent magnet and normal temperature, therefore
The external equipment of whole THz source is simplified, and this has very important significance for the practical of device.Due to vacuum
When the working frequency of electronic device reaches Terahertz frequency range, the electric size of device cross-section diminishes, and the machining accuracy of device is more difficult
It is guaranteed, traditional cylinder high-frequency structure is that periodic slow-wave structure is carved inside metal cylinder, works as device operating frequencies
When reaching terahertz wave band, the width and depth of groove reach micron dimension, it is more difficult to process meet experiment condition high frequency it is slow
Wave structure, using the high-frequency structure of modular form can reduce the difficulty of processing, but can cause simultaneously the mode of operation of device compared with
It is rare to arrive control；Terahertz vacuum electron device difficulty of processing can be reduced using the slow-wave structure of flat board, while improving output work
Rate.
High-frequency structure using radial direction can increase the size of device, the slow-wave structure phase of processing periodic in slab construction
To being easier, while the electron beam that electron gun is produced is transmitted along the opposite direction of radial direction, the current density of electron beam is carried automatically
Height, is conducive to electron beam that Terahertz frequency range electromagnetic wave is encouraged in slow-wave structure, and secondly electron gun is separated with high-frequency structure, therefore
The electron gun of function admirable can be designed using auxiliary magnetic field.Number of patent application is 2015107029166 patent of invention "
Kind of radial structure continuous wave Terahertz Oscillators ", the patent is proposed using axisymmetric radial direction slow-wave structure and axisymmetric
It is electromagnetic wave more than 0.1 Terahertz that Radial Electron Beam produces frequency.The device designs that the patent of invention is proposed can only
Enough to carry out frequency tuning by adjusting electron-beam voltage near working frequency, the tuning range of frequency is limited；Simultaneously with frequency
The tuning of rate, the service behaviour of device can decrease to some degree.
The content of the invention
0.1 is all higher than present invention aim to address under conditions of low-voltage, downfield, can simultaneously radiate two frequencies
Terahertz, power output are all higher than 1 watt of THz wave so that what the whole working frequency tuning range of device was widened
The radially continuous ripple Terahertz of double frequency tiltedly notes pipe.
General principle of the invention is：
External magnetic field generation device produces the magnetostatic field along radial direction and axial direction, and two fan-shaped electron beams are in magnetostatic field
Under guiding, transmitted along the opposite direction of radial direction, and fan-shaped metal plate slow-wave structure phases different from two structural parameters respectively
Interaction, two electromagnetic wave energies of different frequency are converted into by the kinetic energy of two fan-shaped electron beams, two frequencies of generation
Electromagnetic wave is radiate by coaxial output waveguide, because the device employs two different fan-shaped electron beams and two of parameter
The fan-shaped metal plate slow-wave structure that individual structural parameters are differed, therefore two THz waves of frequency can be simultaneously produced, fan
Shape electron beam, constantly near sector metal plate slow-wave structure, improves the energy conversion of fan-shaped electron beam during transmission
Efficiency；Two fan-shaped metal plate slow-wave structures are processed on metal plate simultaneously, and reducing device carries out the difficulty of micro-nano technology
Degree；Two frequencies can be simultaneously produced to be all higher than the Terahertz that 0.1 Terahertz, power output are all higher than 1 watt using the oblique note pipe
Frequency range electromagnetic wave is exported.
Concrete technical scheme of the invention is as follows：
Pipe, including external magnetic field generation device, electronics are tiltedly noted the invention provides a kind of radially continuous ripple Terahertz of double frequency
Beam generation device and coaxial output waveguide；External magnetic field generation device is used to produce the magnetostatic field along radial direction and axial direction；
The coaxial output waveguide includes coaxial output waveguide inner cylinder and coaxial output waveguide outer barrel；
Its improvements is：The electron beam generating device is used to produce a left fan-shaped electron beam and right wing shape electronics
Beam；
Also include axial symmetry metal base plate, axial symmetry metal top plate and axial symmetry collector；Axial symmetry collector is installed
Between axial symmetry metal base plate and axial symmetry metal top plate, and axial symmetry collector is located at axial symmetry metal base plate and axle pair
Claim the center of metal top plate；
The coaxial output waveguide outer barrel is connected and and axial symmetry with axial symmetry metal top plate along the outward flange of radial direction
Metal top plate is vertical；The coaxial output waveguide inner cylinder is connected and and axle with axial symmetry metal base plate along the outward flange of radial direction
Symmetric metal base plate is vertical；
Gap between axial symmetry metal top plate and axial symmetry metal base plate is divided into left radial direction Shu Bo by axial symmetry collector
Passage and right radial direction beam ripple passage；The left radial direction beam ripple passage and right two, radial direction beam ripple passage are separate；Coaxial output
Gap between waveguide inner cylinder and coaxial output waveguide outer barrel is axial bundle ripple passage；Left radial direction beam ripple passage and right radial direction Shu Bo
Passage respectively with axial bundle ripple channel connection；
Axial symmetry metal base plate is being provided with fan-shaped metal plate slow-wave structure on the face of axial symmetry metal top plate；Institute
State fan-shaped metal plate slow-wave structure and the different left fan-shaped metal plate slow-wave structures of structural parameters divide into by axial symmetry collector
And right wing shape metal plate slow-wave structure；Left fan-shaped metal plate slow-wave structure and the axial symmetry metal top plate structure being oppositely arranged
Into left fan-shaped high-frequency structure；
Right wing shape metal plate slow-wave structure constitutes right wing shape high-frequency structure with the axial symmetry metal top plate being oppositely arranged；
Axial symmetry offers two electron beam incidences centered on axial symmetry collector on coaxial output waveguide outer barrel barrel
Mouthful；
The left fan-shaped electron beam and right wing shape electron beam that electron beam generating device is produced are produced in outside magnetic field generation device
External magnetic field guiding under enter left radial direction beam ripple passage and right radial direction Shu Botong from two fan-shaped electron beam entrance ports respectively
Road；Left fan-shaped electron beam and right wing shape electron beam are absorbed by axial symmetry collector rear portion sector electron beam, and a part is beaten
Absorbed to fan-shaped metal plate slow-wave structure surface.
It should be noted that：Left fan-shaped high-frequency structure and right wing shape high-frequency structure produce frequency more than 0.1 Terahertz, defeated
Go out Terahertz frequency range electromagnetic wave of the power more than 1 watt
Two electron beam entrance ports are to be arc；Angular dimension corresponding to arc is 0 ° to 360 °；The left sector
The start-stop angular range of electron beam and right wing shape electron beam is adapted with two electron beam entrance port arc sizes.I.e. that is,
When left fan-shaped electron beam electron beam entrance port corresponding to radian be 10 °, then the start-stop angle of left fan-shaped electron beam is exactly
10°；Similarly, when right wing shape electron beam electron beam entrance port corresponding to radian be 330 °, then right wing shape electron beam rise
Angle till degree is exactly 330 °.
Above-mentioned left fan-shaped electron beam is sector structure with left fan-shaped metal plate slow-wave structure；Corresponding subtended angle rise
Angle till degree is identical；Right wing shape electron beam is sector structure with right wing shape metal plate slow-wave structure；Corresponding subtended angle rise
Angle till degree is identical.
The amplitude of the radial magnetic field that said external magnetic field generation device is produced in fan-shaped high-frequency structure is arrived in 0.1Tesla
Between 1.4Tesla, the amplitude of axial magnetic field is between -0.01Tesla to 0Tesla.
The voltage range of above-mentioned left fan-shaped electron beam and right wing shape electron beam between 1.0kV to 50kV, current density
Scope is in 5A/cm2To 300A/cm2Between.Electron beam generating device is electron gun.
Specifically, the length range in each cycle is arrived for 0.02mm in left fan-shaped metal plate slow-wave structure
Between 4.0mm, between 0.01mm to 3.0mm, the depth bounds of slow-wave structure fluting is for the width range of slow-wave structure fluting
Between 0.02mm to 4.0mm, the length range of the top of left fan-shaped metal plate slow-wave structure away from axial symmetry metal top plate is
Between 0.1mm to 10mm；
In right wing shape metal plate slow-wave structure the length range in each cycle be 0.02mm to 4.0mm between, slow wave
The width range of structure fluting between 0.01mm to 3.0mm, the depth bounds of slow-wave structure fluting for 0.02mm to 4.0mm it
Between, the length range of the top of right wing shape metal plate slow-wave structure away from axial symmetry metal top plate is between 0.1mm to 10.0mm.
The technique effect that the present invention has is as follows：
1st, the present invention produces two fan-shaped electron beams transmitted along radial direction opposite direction using hot cathode, and along radial direction
There is nonlinear interaction in fan-shaped metal plate slow-wave structure, the kinetic energy of fan-shaped electron beam is converted into the electricity of Terahertz frequency range
Magnetic wave energy, the device can simultaneously produce two frequencies to be all higher than the electromagnetic wave that 0.1 Terahertz, power output are all higher than 1 watt.
2nd, the present invention can simultaneously produce two using two fan-shaped metal plate slow-wave structures and two fan-shaped electron beams
The Terahertz frequency range electromagnetic wave of individual frequency so that the whole working frequency tuning range of device is widened.
3rd, the external magnetic field generation device that the present invention is used can not only be produced along the guiding magnetic field of radial direction, and can also
The enough guiding magnetic field for producing axially, two fan-shaped electron beams are constantly leaned on during being transmitted along radial direction opposite direction
Nearly sector metal plate slow-wave structure, enhances the coefficient of coup of fan-shaped electron beam and fan-shaped metal plate slow-wave structure, so that
The power output of device can be improved.
4th, the present invention is transmitted using two fan-shaped electron beams along radial direction opposite direction, in the process of fan-shaped electron beam transmission
In, the density of fan-shaped electron beam constantly increases automatically, so as to tiltedly note pipe cannot be exported when overcoming the density of fan-shaped electron beam relatively low
The shortcoming of electromagnetic wave, while the operating voltage of each fan-shaped electron beam can be adjusted individually, independently realizes the fast of frequency
Velocity modulation is humorous.
5th, using the fan-shaped electron beam transmitted along two radial direction opposite directions, two electron guns of hot cathode are located at the present invention
The outside of slow-wave structure, can be independent be designed, facilitates the design of electron gun structure and the assembling of whole device.
6th, the voltage of two of the present invention fan-shaped electron beams is not higher than 50kV, and low operating voltage can reduce
Tiltedly the volume of primary electrical potential source needed for note pipe, is conducive to of the invention widely using.
7th, the amplitude in the magnetic field that external magnetic field generation device of the present invention is produced is less than 1.4Tesla, the guiding magnetic
The amplitude of field is smaller, be can be achieved with using common coil or permanent magnet, so as to huge outside needed for overcoming generation high-intensity magnetic field sets
Standby problem.
8th, fan-shaped electron beam of the invention is input into fan-shaped high-frequency structure from the outer barrel barrel of coaxial output waveguide, coaxially
The cross section of output waveguide increases so that the power capacity of export structure is improved, and with bigger design space, is conducive to device
Radiating and auxiliary magnetic field design.
9th, radially tiltedly note pipe can be also used for producing two Terahertzs of other frequencies simultaneously low-voltage proposed by the present invention
The tiltedly development of note pipe.
Brief description of the drawings
Figure 1A is generalized section of the present invention in x-z-plane；
Figure 1B is generalized section of the present invention in y-z plane；
Fig. 1 C are structural representation of the present invention in x-y plane；
Fig. 2A is the schematic diagram of the left fan-shaped metal plate slow-wave structure of the present invention；
Fig. 2 B are the width and position view of the left fan-shaped electron beam of the present invention；
Fig. 3 A are the schematic diagram of right wing shape metal plate slow-wave structure of the present invention；
Fig. 3 B are the width and position view of right wing shape electron beam of the present invention；
Fig. 4 is the coaxial output waveguide schematic diagram of the present invention；
Fig. 5 A are the present invention to produce the double frequency footpath that two frequencies are 0.305 Terahertz and 0.34 terahertz electromagnetic wave simultaneously
The spectrogram of 0.305 terahertz electromagnetic wave of the pipe produced by embodiment is tiltedly noted to continuous wave Terahertz；
Fig. 5 B are the present invention to produce the double frequency footpath that two frequencies are 0.305 Terahertz and 0.34 terahertz electromagnetic wave simultaneously
The power output figure of 0.305 terahertz electromagnetic wave of the pipe produced by embodiment is tiltedly noted to continuous wave Terahertz；
Fig. 6 A are the present invention to produce the double frequency footpath that two frequencies are 0.305 Terahertz and 0.34 terahertz electromagnetic wave simultaneously
It is the spectrogram of 0.34 terahertz electromagnetic wave produced by embodiment tiltedly to note pipe to continuous wave Terahertz；
Fig. 6 B are the present invention to produce the double frequency footpath that two frequencies are 0.305 Terahertz and 0.34 terahertz electromagnetic wave simultaneously
The power output figure of 0.34 terahertz electromagnetic wave of the pipe produced by embodiment is tiltedly noted to continuous wave Terahertz.
Reference is as follows：
1st, left fan-shaped electron beam A；2nd, right wing shape electron beam B；3rd, left fan-shaped metal plate slow-wave structure A；4th, right wing shape gold
Category flat board slow-wave structure B；5th, axial symmetry metal top plate；6th, coaxial output waveguide inner cylinder；7th, coaxial output waveguide outer barrel；8th, it is outside
Magnetic field generation device；9th, axial symmetry metal base plate；10th, axial symmetry collector.
Specific embodiment
The present invention relates to two frequency electromagnetics can be simultaneously produced under a kind of low voltage condition the radially continuous ripple of double frequency too
Hertz tiltedly manage by note, in device using the two fan-shaped electron beams and two various sizes of sectors along the transmission of radial direction opposite direction
Metal plate slow-wave structure, device can simultaneously produce two frequencies to be all higher than in terahertz wave band with continuous wave working condition
The electromagnetic wave of 0.1 Terahertz, power output more than 1 watt.
The present invention is embodiment to produce 0.305 Terahertz and 0.34 terahertz electromagnetic wave simultaneously below, to the present invention
It is described in detail：
The device can be 0.6Tesla in radial directed magnetic field amplitude, axially directed magnetic field amplitude is negative 0.002Tesla
When, while producing the electromagnetic wave of 0.305 Terahertz and 0.34 Terahertz, the power output of the two frequency electromagnetics is respectively
9.1 watts and 23.8 watts.
As shown in figs. 1A-1 c, the device is slow by left fan-shaped electron beam A1, right wing shape electron beam B2, left fan-shaped metal plate
Wave structure A3, right wing shape metal plate slow-wave structure B4, axial symmetry metal top plate 5, coaxial output waveguide inner cylinder 6, coaxial output
Waveguide outer barrel 7, external magnetic field generation device 8, axial symmetry metal base plate 9 and axial symmetry collector 10 are constituted；All metal materials
Material be electrical conductivity copper higher, introduced ohmic loss is smaller.
Left fan-shaped electron beam A1 and left fan-shaped metal plate slow-wave structure A3 is distributed in fan-shaped, and corresponding angular range is equal
From 120 degree to 240 degree, left fan-shaped electron beam A1 is in the radial direction produced by outside magnetic field generation device 8 and axial magnetostatic field
Under guiding, during being transmitted along radial direction opposite direction, constantly near left fan-shaped metal plate slow-wave structure A3, with left fan
Shape metal plate slow-wave structure A3 produces interaction with the fan-shaped high-frequency structure that axial symmetry metal top plate 5 is constituted, by left sector
The kinetic energy of electron beam A1 is converted into the energy of electromagnetic wave, the electromagnetic wave of 0.305 Terahertz is produced, by coaxial output waveguide inner cylinder
6 export with the axial bundle ripple passage that coaxial output waveguide outer barrel 7 is constituted；The part electron beam of left fan-shaped electron beam A1 gets to sector
Absorbed on metal plate slow-wave structure A3, remaining electron beam is got on axial symmetry collector 10 and absorbed.
Right wing shape electron beam B2 and right wing shape metal plate slow-wave structure B4 is distributed in fan-shaped, and corresponding angular range is equal
From minus 60 degree to 60 degree, the guiding in the axially and radially magnetic field that right wing shape electron beam B2 is produced in outside magnetic field generation device 8
Under, during being transmitted along radial direction opposite direction, constantly near right wing shape metal plate slow-wave structure B4, with right wing shape metal
Flat board slow-wave structure B4 constitutes fan-shaped high-frequency structure and produces interaction with axial symmetry metal top plate 5, and right wing shape metal is put down
The kinetic energy of plate slow-wave structure B4 is converted into the energy of electromagnetic wave, the electromagnetic wave of 0.34 Terahertz is produced, by coaxial output waveguide
The axial bundle ripple passage output that inner cylinder 6 is constituted with coaxial output waveguide outer barrel 7；The part electron beam of right wing shape electron beam B2 is got to
Absorbed on right wing shape metal plate slow-wave structure B4, remaining electron beam is got on axial symmetry collector 10 and absorbed.Axial symmetry
Metal base plate 9 is one piece of axisymmetric flat metal structure, left fan-shaped metal plate slow-wave structure A3 and right wing shape metal plate
Slow-wave structure B4 is manufactured by micro-nano technology technology in the upper surface of axial symmetry metal base plate 9.
As shown in Figure 2 A, the left fan-shaped high-frequency structure includes left fan-shaped metal plate slow-wave structure A3 and axial symmetry metal
Top board 5, the number of cycles of left fan-shaped metal plate slow-wave structure A3 is 60, each in left fan-shaped metal plate slow-wave structure A3
The length R2 in individual cycle is 0.1mm, and the width R1 of slow-wave structure fluting is 0.06mm, and the depth L2 of slow-wave structure fluting is
Length L1 of the top of 0.2mm, fan-shaped metal plate slow-wave structure A3 away from axial symmetry metal top plate 5 is 0.42mm.
Shown in Fig. 2 B, the current density of left fan-shaped electron beam A1 is 16.8A/cm2, energy is 5 kiloelectron-volts, left fan-shaped electricity
The width h2 of beamlet A1 is 0.1mm, and length h1 of the electron beam bottom position at the top of left fan-shaped metal plate slow-wave structure A3 is
0.01mm, it is 0.6Tesla to be produced along the amplitude of radial magnetic field in the high frequency interaction region external magnetic field generation device 8, along
The magnetic field amplitude of axial direction is negative 0.002Tesla.
Shown in Fig. 3 A, right wing shape high-frequency structure includes right wing shape metal plate slow-wave structure B4 and axial symmetry metal top plate
The number of cycles of 5, right wing shape metal plate slow-wave structure B4 is 60, each week in right wing shape metal plate slow-wave structure B4
The length R4 of phase is 0.1mm, and the width R3 of slow-wave structure fluting is 0.06mm, and the depth L4 of slow-wave structure fluting is 0.18mm,
Length L3 of the top of right wing shape metal plate slow-wave structure B4 away from axial symmetry metal top plate 5 is 0.42mm.
Shown in Fig. 3 B, the current density of right wing shape electron beam B2 is 16.8A/cm2, energy is 7 kiloelectron-volts, right wing shape electricity
The width h4 of beamlet B2 is 0.1mm, and length h3 of the electron beam bottom position at the top of right wing shape metal plate slow-wave structure B4 is
0.01mm, it is 0.6Tesla to be produced along the amplitude of radial magnetic field in the high frequency interaction region external magnetic field generation device 8, along
The amplitude of axial magnetic field is negative 0.002Tesla.
Fig. 4 is the schematic diagram of coaxial output waveguide of the invention.Axial symmetry metal base plate 9 is away from axial symmetry metal top plate 5
Length L5 is 0.42mm, and axial symmetry metal base plate 9 is connected with coaxial output waveguide inner cylinder 6, coaxial output waveguide inner cylinder 6
Length L6 is 1.08mm, and the length R5 away from symmetry axis is 9.0mm；Coaxial output waveguide outer barrel 7 connects with axial symmetry metal top plate 5
Connect, and coaxial output waveguide outer barrel 7 is 1.5mm along the length L7 of axis direction, the length R6 away from symmetry axis is 9.5mm
Fig. 5-6 is the result of calculation of the embodiment of the present invention using particle simulation software emulation, the meter of the embodiment of the present invention
Calculate model as shown in figs. 1A-1 c, Fig. 5 A show that the device architecture of the embodiment of the present invention can produce the electricity that frequency is 0.305 Terahertz
Magnetic wave, Fig. 5 B show that the power output of 0.305 terahertz electromagnetic wave that the device architecture of the embodiment of the present invention is produced is 9.1 watts；
Fig. 6 A show that the device architecture of the embodiment of the present invention can produce the electromagnetic wave that frequency is 0.34 Terahertz, Fig. 6 B to show of the invention real
The power output for applying 0.34 terahertz electromagnetic wave of the device architecture generation of example is 23.8 watts.
Claims (7)
1. a kind of radially continuous ripple Terahertz of double frequency tiltedly notes pipe, including external magnetic field generation device, electron beam generating device and
Coaxial output waveguide；The external magnetic field generation device is used to produce the magnetostatic field along radial direction and axial direction；It is described coaxial defeated
Going out waveguide includes coaxial output waveguide inner cylinder and coaxial output waveguide outer barrel；
It is characterized in that：The electron beam generating device is used to produce a left fan-shaped electron beam and right wing shape electron beam；
Also include axial symmetry metal base plate, axial symmetry metal top plate and axial symmetry collector；Axial symmetry collector is arranged on axle
Between symmetric metal base plate and axial symmetry metal top plate, and axial symmetry collector is located at axial symmetry metal base plate and axial symmetry gold
Belong to the center of top board；
The coaxial output waveguide outer barrel be connected along the outward flange of radial direction with axial symmetry metal top plate and with axial symmetry metal
Top board is vertical；The coaxial output waveguide inner cylinder is connected and and axial symmetry with axial symmetry metal base plate along the outward flange of radial direction
Metal base plate is vertical；
Gap between axial symmetry metal top plate and axial symmetry metal base plate is divided into left radial direction beam ripple passage by axial symmetry collector
With right radial direction beam ripple passage；The left radial direction beam ripple passage and right two, radial direction beam ripple passage are separate；Coaxial output waveguide
Gap between inner cylinder and coaxial output waveguide outer barrel is axial bundle ripple passage；Left radial direction beam ripple passage and right radial direction beam ripple passage
Respectively with axial bundle ripple channel connection；
Axial symmetry metal base plate is being provided with fan-shaped metal plate slow-wave structure on the face of axial symmetry metal top plate；The fan
Shape metal plate slow-wave structure by axial symmetry collector divide into the different left fan-shaped metal plate slow-wave structure of structural parameters and
Right wing shape metal plate slow-wave structure；Left fan-shaped metal plate slow-wave structure is constituted with the axial symmetry metal top plate being oppositely arranged
Left fan-shaped high-frequency structure；
Right wing shape metal plate slow-wave structure constitutes right wing shape high-frequency structure with the axial symmetry metal top plate being oppositely arranged；
Axial symmetry offers two electron beam entrance ports centered on axial symmetry collector on coaxial output waveguide outer barrel barrel；
The left fan-shaped electron beam and right wing shape electron beam of electron beam generating device generation are in the presence of outside magnetic field generation device
Enter left radial direction beam ripple passage and right radial direction beam ripple passage from two fan-shaped electron beam entrance ports respectively；Left fan-shaped electron beam and the right side
Fan-shaped electron beam is got to axial symmetry collector rear portion sector electron beam and is absorbed, and a part gets to fan-shaped metal plate slow wave
Body structure surface is absorbed.
2. the radially continuous ripple Terahertz of double frequency according to claim 1 tiltedly notes pipe, it is characterised in that：The left fan-shaped high frequency
Structure and right wing shape high-frequency structure produce Terahertz frequency range electromagnetism of the frequency more than 0.1 Terahertz, power output more than 1 watt
Ripple.
3. the radially continuous ripple Terahertz of double frequency according to claim 1 and 2 tiltedly notes pipe, it is characterised in that：Described two electricity
Beamlet entrance port is to be arc；Angular dimension corresponding to arc is 0 ° to 360 °；The left fan-shaped electron beam and right wing shape
The start-stop angular range of electron beam is adapted with the angular dimension corresponding to two electron beam entrance port arcs.
4. the radially continuous ripple Terahertz of double frequency according to claim 3 tiltedly notes pipe, it is characterised in that：The left fan-shaped electronics
Beam is sector structure with left fan-shaped metal plate slow-wave structure；The start-stop angle of corresponding subtended angle is identical；Right wing shape electronics
Beam is sector structure with right wing shape metal plate slow-wave structure；The start-stop angle of corresponding subtended angle is identical.
5. the radially continuous ripple Terahertz of double frequency according to claim 4 tiltedly notes pipe, it is characterised in that：Produce the external magnetic field
The amplitude of the radial magnetic field that generating apparatus are produced in fan-shaped high-frequency structure between 0.1Tesla to 1.4Tesla, the width of axial magnetic field
Value is between -0.01Tesla to 0Tesla.
6. the radially continuous ripple Terahertz of double frequency according to claim 5 tiltedly notes pipe, it is characterised in that：The left fan-shaped electronics
Between 1.0kV to 50kV, current density range is in 5A/cm for the voltage range of beam and right wing shape electron beam2To 300A/cm2
Between.
7. the radially continuous ripple Terahertz of double frequency according to claim 6 tiltedly notes pipe, it is characterised in that：The left fan-shaped metal
In flat board slow-wave structure the length range in each cycle be 0.02mm to 4.0mm between, slow-wave structure fluting width range
For between 0.01mm to 3.0mm, the depth of slow-wave structure fluting between 0.02mm to 4.0mm, left fan-shaped metal plate slow wave
The scope of length of the top of structure away from axial symmetry metal top plate is between 0.1mm to 10.0mm；
In right wing shape metal plate slow-wave structure the scope of the length in each cycle be 0.02mm to 4.0mm between, slow wave knot
The width range of structure fluting between 0.01mm to 3.0mm, the depth bounds of slow-wave structure fluting for 0.02mm to 4.0mm it
Between, the length range of the top of right wing shape metal plate slow-wave structure away from axial symmetry metal top plate is between 0.1mm to 10.0mm.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111540656A (en) * | 2020-04-02 | 2020-08-14 | 中国工程物理研究院应用电子学研究所 | S and C waveband double-frequency controllable high-power microwave device |
| CN111554468A (en) * | 2020-06-03 | 2020-08-18 | 中国电子科技集团公司第九研究所 | Magnetic field generating device for terahertz traveling wave tube |
| CN114005720A (en) * | 2021-11-09 | 2022-02-01 | 北京航空航天大学 | Terahertz traveling wave tube slow wave focusing integrated structure and manufacturing method thereof |
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| CN102403180A (en) * | 2010-09-08 | 2012-04-04 | 中国科学院电子学研究所 | Distribution terahertz oscillator |
| CN102436115A (en) * | 2011-12-23 | 2012-05-02 | 天津大学 | Method for improving terahertz wave generation efficiency and transmissivity |
| CN105244248A (en) * | 2015-10-26 | 2016-01-13 | 西北核技术研究所 | Radial structure continuous wave terahertz oscillator |
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| CN102403180A (en) * | 2010-09-08 | 2012-04-04 | 中国科学院电子学研究所 | Distribution terahertz oscillator |
| CN102436115A (en) * | 2011-12-23 | 2012-05-02 | 天津大学 | Method for improving terahertz wave generation efficiency and transmissivity |
| CN105244248A (en) * | 2015-10-26 | 2016-01-13 | 西北核技术研究所 | Radial structure continuous wave terahertz oscillator |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111540656A (en) * | 2020-04-02 | 2020-08-14 | 中国工程物理研究院应用电子学研究所 | S and C waveband double-frequency controllable high-power microwave device |
| CN111540656B (en) * | 2020-04-02 | 2023-03-31 | 中国工程物理研究院应用电子学研究所 | S and C waveband double-frequency controllable high-power microwave device |
| CN111554468A (en) * | 2020-06-03 | 2020-08-18 | 中国电子科技集团公司第九研究所 | Magnetic field generating device for terahertz traveling wave tube |
| CN114005720A (en) * | 2021-11-09 | 2022-02-01 | 北京航空航天大学 | Terahertz traveling wave tube slow wave focusing integrated structure and manufacturing method thereof |
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