CN106783476B - A kind of radially continuous wave Terahertz of double frequency tiltedly notes pipe - Google Patents
A kind of radially continuous wave Terahertz of double frequency tiltedly notes pipe Download PDFInfo
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- CN106783476B CN106783476B CN201611031076.6A CN201611031076A CN106783476B CN 106783476 B CN106783476 B CN 106783476B CN 201611031076 A CN201611031076 A CN 201611031076A CN 106783476 B CN106783476 B CN 106783476B
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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
-
- 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
Abstract
The present invention relates to a kind of radially continuous wave Terahertzs of double frequency tiltedly to note 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 device；External magnetic field generation device generates 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, it is transmitted along the negative direction of radial direction, and different from two structural parameters fan-shaped metal plate slow-wave structure interactions respectively, the kinetic energy of two fan-shaped electron beams is converted into the electromagnetic wave energy of two different frequencies, the electromagnetic wave of two frequencies generated is radiate by coaxial output waveguide, two frequency electromagnetic outputs can be generated simultaneously so that the entire working frequency tuning range of device is widened.
Description
Technical field
The invention belongs to continuous wave Terahertz vacuum electronic radiation source technical fields, and in particular to one kind is operated in continuous wave
State, can radiate simultaneously two frequencies be all higher than 0.1 Terahertz, output power be all higher than 1 watt terahertz wave band double frequency diameter
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 generate higher output power, 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 are ground
Study carefully, produce the terahertz pulse signal that frequency is 1.03THz, output power is 1kW, Japanese Feitian university has carried out terahertz
The hereby experimental study of wave band continuous wave gyrotron.Xibei Nuclear Techn Inst surrounds overmoded surface-wave oscillator, in THz wave
A large amount of research work is also carried out in terms of generating theoretical, numerical simulation and experiment, on CKP1000 and CKP3000 accelerators
Experiment has obtained the THz wave that frequency is 0.14THz and has exported, and utilizes radiated far field power density integration method, measured power difference
Reach about 2.6MW and 5MW, and tentatively carry out the theoretical research work of 0.14THz coaxial configuration surface-wave oscillators.In order to
Reach output power more than kW magnitudes, the additional guiding magnetic needed for the Cyclotron and surface-wave oscillator developed at this stage
Field is generally large, superconducting coil need to be used to generate high-intensity magnetic field, the movement of electron beam is constrained, lead to 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 output power THz source device, can be used for the research fields such as medical imaging and detection.The type
The required electron-beam voltage of 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 room temperature, therefore
The external equipment of entire THz source is simplified, this has very important significance for the functionization of device.Due to vacuum
When the working frequency of electronic device reaches Terahertz frequency range, the electric size of device cross-section becomes smaller, 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 slot reach micron dimension, it is more difficult to process meet experiment condition high frequency it is slow
Wave structure used the high-frequency structure of modular form that can reduce the difficulty of processing, but can cause simultaneously the operating mode of device compared with
It is rare to arrive control；Terahertz vacuum electron device difficulty of processing can be reduced, while improve output work using the slow-wave structure of tablet
Rate.
The size of device can be increased using the high-frequency structure of radial direction, the slow-wave structure phase of processing periodic in slab construction
To being easier, while the electron beam that electron gun generates is transmitted along the negative direction of radial direction, and the current density of electron beam carries automatically
Height is conducive to electron beam and Terahertz frequency range electromagnetic wave is encouraged in slow-wave structure, and secondly electron gun is detached with high-frequency structure, therefore
Auxiliary magnetic field can be used to design the electron gun of function admirable.Number of patent application is 2015107029166 patent of invention " one
Kind of radial structure continuous wave Terahertz Oscillators ", the patent are proposed using axisymmetric radial direction slow-wave structure and axisymmetric
Radial Electron Beam generates frequency as electromagnetic wave more than 0.1 Terahertz.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 working performance of device can decrease to some degree.
Invention content
Present invention aim to address under conditions of low-voltage, downfield, can radiate two frequencies simultaneously to be all higher than 0.1
Terahertz, output power are all higher than 1 watt of THz wave so that the entire working frequency tuning range of device was widened
The radially continuous wave Terahertz of double frequency tiltedly notes pipe.
The present invention basic principle be：
External magnetic field generation device generates the magnetostatic field along radial direction and axial direction, and two fan-shaped electron beams are in magnetostatic field
Under guiding, transmitted, and fan-shaped metal plate slow-wave structure phases different from two structural parameters respectively along the negative direction of radial direction
The kinetic energy of two fan-shaped electron beams is converted into the electromagnetic wave energy of two different frequencies by interaction, two frequencies of generation
Electromagnetic wave is radiate by coaxial output waveguide, since the device employs the different fan-shaped electron beam and two of two parameters
The different fan-shaped metal plate slow-wave structure of a structural parameters, therefore the THz wave of two frequencies can be generated simultaneously, it fans
Shape electron beam, constantly close to fan-shaped 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, reduce the difficulty that device carries out micro-nano technology
Degree；It can generate that two frequencies are all higher than 0.1 Terahertz, output power is all higher than 1 watt of Terahertz simultaneously using the oblique note pipe
Frequency range electromagnetic wave exports.
The specific technical solution of the present invention is as follows：
The present invention provides a kind of radially continuous wave Terahertzs of double frequency tiltedly to note pipe, including external magnetic field generation device, electronics
Beam generation device and coaxial output waveguide；External magnetic field generation device is for generation along the magnetostatic field of 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 for one left fan-shaped electron beam of generation and right wing shape electronics
Beam；
Further 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 axis pair
At the center for claiming metal top plate；
The coaxial output waveguide outer barrel is connected with axial symmetry metal top plate along the outer edge of radial direction and and axial symmetry
Metal top plate is vertical；The coaxial output waveguide inner cylinder is connected with axial symmetry metal base plate along the outer edge of radial direction and and axis
Symmetric metal bottom 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
Channel and right radial direction beam wave channel；The left radial direction beam wave channel and two, right radial direction beam wave channel are independently of each other；Coaxial output
Gap between waveguide inner cylinder and coaxial output waveguide outer barrel is axial bundle wave channel；Left radial direction beam wave channel and right radial direction Shu Bo
Channel connects respectively with axial bundle wave channel；
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
It states fan-shaped metal plate slow-wave structure and the different left fan-shaped metal plate slow-wave structures of structural parameters is divided by axial symmetry collector
And right wing shape metal plate slow-wave structure；Left sector 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；
On coaxial output waveguide outer barrel barrel centered on axial symmetry collector axial symmetry open up it is incident there are two electron beam
Mouthful；
The left fan-shaped electron beam and right wing shape electron beam that electron beam generating device generates are generated in external magnetic field generation device
External magnetic field guiding under enter left radial direction beam wave channel and right radial direction Shu Botong from two fan-shaped electron beam entrance ports respectively
Road；Left sector electron beam and right wing shape electron beam are absorbed by axial symmetry collector rear portion sector electron beam, and a part is beaten
It is absorbed to fan-shaped metal plate slow-wave structure surface.
It should be noted that：Left sector high-frequency structure and right wing shape high-frequency structure generate frequency more than 0.1 Terahertz, defeated
Go out the Terahertz frequency range electromagnetic wave that power is more than 1 watt
Two electron beam entrance ports are arc；Angular dimension corresponding to arc is 0 ° to 360 °；The left fan-shaped electricity
The start-stop angular range of beamlet and right wing shape electron beam is adapted with two electron beam entrance port arc sizes.I.e. that is, when
It is left sector electron beam electron beam entrance port corresponding to radian be 10 °, then it is left sector electron beam start-stop angle be exactly
10°；Similarly, when the radian corresponding to the electron beam entrance port of right wing shape electron beam is 330 °, then right wing shape electron beam rises
Angle till degree is exactly 330 °.
Above-mentioned left fan-shaped electron beam and left fan-shaped metal plate slow-wave structure are sector structure；Corresponding subtended angle rises
Angle till degree is identical；Right wing shape electron beam and right wing shape metal plate slow-wave structure are sector structure；Corresponding subtended angle rises
Angle till degree is identical.
Said external magnetic field generation device is arrived in the amplitude for the radial magnetic field that fan-shaped high-frequency structure generates 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 in 1.0kV between 50kV, current density
Range is in 5A/cm2To 300A/cm2Between.Electron beam generating device is electron gun.
Specifically, the length range in each period 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 are the width range of slow-wave structure fluting
Between 0.02mm to 4.0mm, length range of the top away from axial symmetry metal top plate of left sector metal plate slow-wave structure is
Between 0.1mm to 10mm；
The length range in each period is between 0.02mm to 4.0mm in right wing shape metal plate slow-wave structure, slow wave
Structure fluting width range for 0.01mm to 3.0mm between, slow-wave structure fluting depth bounds be 0.02mm to 4.0mm it
Between, length range of the top away from axial symmetry metal top plate of left sector metal plate slow-wave structure is between 0.1mm to 10.0mm.
The technique effect that the present invention has is as follows：
1st, the present invention generates two fan-shaped electron beams transmitted along radial direction negative direction using hot cathode, and along radial direction
Nonlinear interaction occurs for fan-shaped metal plate slow-wave structure, and the kinetic energy of fan-shaped electron beam is converted into the electricity of Terahertz frequency range
Magnetic wave energy, the device can generate that two frequencies are all higher than 0.1 Terahertz, output power is all higher than 1 watt of electromagnetic wave simultaneously.
2nd, the present invention can generate two simultaneously using two fan-shaped metal plate slow-wave structures and two fan-shaped electron beams
The Terahertz frequency range electromagnetic wave of a frequency so that the entire working frequency tuning range of device is widened.
3rd, the external magnetic field generation device that the present invention uses can not only generate the guiding magnetic field along radial direction, and can also
The enough guiding magnetic field generated axially, two fan-shaped electron beams constantly lean on during being transmitted along radial direction negative direction
Nearly sector metal plate slow-wave structure, enhances fan-shaped electron beam and the coefficient of coup of fan-shaped metal plate slow-wave structure, so as to
The output power of device can be improved.
4th, the present invention is transmitted using two fan-shaped electron beams along radial direction negative direction, in the process of fan-shaped electron beam transmission
In, the density of fan-shaped electron beam constantly increases automatically, can not be exported so as to tiltedly note pipe when overcoming the density of fan-shaped electron beam relatively low
The shortcomings that electromagnetic wave, while the operating voltage of each fan-shaped electron beam can be individually adjusted, independently realize the fast of frequency
Velocity modulation is humorous.
5th, the present invention is located at using the fan-shaped electron beam along two radial direction negative direction transmission, two electron guns of hot cathode
The outside of slow-wave structure, can be independent be designed, facilitates the design of electron gun structure and the assembling of entire device.
6th, not higher than 50kV, low operating voltage can reduce the voltage of two of the present invention fan-shaped electron beams
The tiltedly volume of primary electrical potential source needed for note pipe, is conducive to being widely used for the present invention.
7th, the amplitude in the magnetic field that external magnetic field generation device of the present invention generates is less than 1.4Tesla, the guiding magnetic
The amplitude of field is smaller, can be achieved with using common coil or permanent magnet, so as to which huge outside needed for generation high-intensity magnetic field be overcome to set
The problem of standby.
8th, fan-shaped electron beam of the invention is input to from the outer barrel barrel of coaxial output waveguide in fan-shaped high-frequency structure, coaxially
The cross section of output waveguide increases so that the power capacity of export structure improves, and has the design space of bigger, is conducive to device
Heat dissipation and auxiliary magnetic field design.
9th, low-voltage proposed by the present invention radially tiltedly notes the Terahertz that pipe can be also used for generating two other frequencies simultaneously
The tiltedly development of note pipe.
Description of the drawings
Fig. 1 is diagrammatic cross-section of the present invention in x-z-plane；
Fig. 2 is diagrammatic cross-section of the present invention in y-z plane；
Fig. 3 is structure diagram of the present invention in x-y plane；
Fig. 4 is the schematic diagram of the left fan-shaped metal plate slow-wave structure of the present invention；
Fig. 5 is the width and position view of the left fan-shaped electron beam of the present invention；
Fig. 6 is the schematic diagram of right wing shape metal plate slow-wave structure of the present invention；
Fig. 7 is the width and position view of right wing shape electron beam of the present invention；
Fig. 8 is the coaxial output waveguide schematic diagram of the present invention；
Fig. 9 be the present invention using simultaneously generation two frequencies as 0.305 Terahertz and the double frequency diameter of 0.34 terahertz electromagnetic wave
The spectrogram that pipe is 0.305 terahertz electromagnetic wave caused by embodiment is tiltedly noted to continuous wave Terahertz；
Figure 10 be the present invention using simultaneously generation two frequencies as 0.305 Terahertz and the double frequency diameter of 0.34 terahertz electromagnetic wave
The power output figure that pipe is 0.305 terahertz electromagnetic wave caused by embodiment is tiltedly noted to continuous wave Terahertz；
Figure 11 be the present invention using simultaneously generation two frequencies as 0.305 Terahertz and the double frequency diameter of 0.34 terahertz electromagnetic wave
The spectrogram that pipe is 0.34 terahertz electromagnetic wave produced by embodiment is tiltedly noted to continuous wave Terahertz；
Figure 12 be the present invention using simultaneously generation two frequencies as 0.305 Terahertz and the double frequency diameter of 0.34 terahertz electromagnetic wave
The power output figure that pipe is 0.34 terahertz electromagnetic wave caused by embodiment is tiltedly noted to continuous wave Terahertz.
Reference numeral 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
Belong to tablet 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 external
Magnetic field generation device；9th, axial symmetry metal base plate；10th, axial symmetry collector.
Specific embodiment
The present invention relates to can generate the radially continuous wave of double frequency of two frequency electromagnetics under a kind of low voltage condition simultaneously too
Hertz tiltedly note pipe, device using two along radial direction negative direction transmission fan-shaped electron beam and two various sizes of sectors
Metal plate slow-wave structure, device can generate two frequencies simultaneously with continuous wave working condition in terahertz wave band and be all higher than
0.1 Terahertz, output power are more than 1 watt of electromagnetic wave.
The present invention to generate 0.305 Terahertz and 0.34 terahertz electromagnetic wave as embodiment 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 the electromagnetic wave of 0.305 Terahertz and 0.34 Terahertz is generated, the output power of the two frequency electromagnetics is respectively
9.1 watts and 23.8 watts.
As shown in Figs. 1-3, the device is by left fan-shaped electron beam A1, right wing shape electron beam B2, left fan-shaped metal plate slow 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 wave
Outer barrel 7, external magnetic field generation device 8, axial symmetry metal base plate 9 and axial symmetry collector 10 is led to form；All metal materials
Material is the higher copper of conductivity, and introduced ohmic loss is smaller.
Left sector electron beam A1 is distributed with left fan-shaped metal plate slow-wave structure A3 in fan-shaped, and corresponding angular range is equal
From 120 degree to 240 degree, left sector electron beam A1 caused by external magnetic field generation device 8 radially and axial magnetostatic field
It is continuous close to left fan-shaped metal plate slow-wave structure A3 during being transmitted along radial direction negative direction under guiding, with left fan
Shape metal plate slow-wave structure A3 generates interaction with the fan-shaped high-frequency structure that axial symmetry metal top plate 5 is formed, by left sector
The kinetic energy of electron beam A1 is converted into the energy of electromagnetic wave, generates the electromagnetic wave of 0.305 Terahertz, passes through coaxial output waveguide inner cylinder
6 export with the axial bundle wave channel that coaxial output waveguide outer barrel 7 is formed；The part electron beam of left sector electron beam A1 gets to sector
It is absorbed on metal plate slow-wave structure A3, remaining electron beam, which is got on axial symmetry collector 10, to be 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, right wing shape electron beam B2 is in the guiding in the axially and radially magnetic field that external magnetic field generation device 8 generates
Under, during being transmitted along radial direction negative direction, constantly close to right wing shape metal plate slow-wave structure B4, with right wing shape metal
Tablet slow-wave structure B4 forms fan-shaped high-frequency structure with axial symmetry metal top plate 5 and generates interaction, 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, generates the electromagnetic wave of 0.34 Terahertz, passes through coaxial output waveguide
The axial bundle wave channel output that inner cylinder 6 is formed with coaxial output waveguide outer barrel 7；The part electron beam of right wing shape electron beam B2 is got to
It is absorbed on right wing shape metal plate slow-wave structure B4, remaining electron beam, which is got on axial symmetry collector 10, to be absorbed.Axial symmetry
Metal base plate 9 is one piece of axisymmetric flat metal structure, left sector 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 4, the left fan-shaped high-frequency structure includes left sector metal plate slow-wave structure A3 and axial symmetry metal
Top plate 5, the number of cycles of left sector metal plate slow-wave structure A3 is 60, each in left sector metal plate slow-wave structure A3
The length R2 in a period 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 away from axial symmetry metal top plate 5 of 0.2mm, fan-shaped metal plate slow-wave structure A3 are 0.42mm.
Shown in Fig. 5, the current density of left sector 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 electron beam bottom position is away from the length h1 at the top of left fan-shaped metal plate slow-wave structure A3
0.01mm, it is 0.6Tesla to be generated in the high frequency interaction region external magnetic field generation device 8 along the amplitude of radial magnetic field, along
Axial magnetic field amplitude is negative 0.002Tesla.
Shown in Fig. 6, 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 are 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 away from axial symmetry metal top plate 5 of right wing shape metal plate slow-wave structure B4 is 0.42mm.
Shown in Fig. 7, 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 electron beam bottom position is away from the length h3 at the top of right wing shape metal plate slow-wave structure B4
0.01mm, it is 0.6Tesla to be generated in the high frequency interaction region external magnetic field generation device 8 along the amplitude of radial magnetic field, along
The amplitude of axial magnetic field is negative 0.002Tesla.
Fig. 8 is the schematic diagram of the coaxial output waveguide of the present 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 connect 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
It connects, 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
Result of calculations of Fig. 9-Figure 12 for the embodiment of the present invention using particle simulation software emulation, the embodiment of the present invention
As shown in Figure 1-Figure 3, Fig. 9 shows that the device architecture of the embodiment of the present invention can generate frequency as 0.305 Terahertz to computation model
Electromagnetic wave, Figure 10 show that the output power of 0.305 terahertz electromagnetic wave that the device architecture of the embodiment of the present invention generates is 9.1
Watt；Figure 11 shows that the device architecture of the embodiment of the present invention can generate the electromagnetic wave that frequency is 0.34 Terahertz, and Figure 12 shows this hair
The output power for 0.34 terahertz electromagnetic wave that the device architecture of bright embodiment generates is 23.8 watts.
Claims (7)
1. a kind of radially continuous wave 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 for generation along the magnetostatic field of radial direction and axial direction；It is described coaxial defeated
Go out waveguide and include coaxial output waveguide inner cylinder and coaxial output waveguide outer barrel；
It is characterized in that：The electron beam generating device is for one left fan-shaped electron beam of generation and right wing shape electron beam；
Further include axial symmetry metal base plate, axial symmetry metal top plate and axial symmetry collector；Axial symmetry collector is mounted on axis
Between symmetric metal bottom plate and axial symmetry metal top plate, and axial symmetry collector is located at axial symmetry metal base plate and axial symmetry gold
At the center for belonging to top plate；
The coaxial output waveguide outer barrel be connected with axial symmetry metal top plate along the outer edge of radial direction and with axial symmetry metal
Top plate is vertical；The coaxial output waveguide inner cylinder is connected with axial symmetry metal base plate along the outer edge of radial direction and and axial symmetry
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 wave channel by axial symmetry collector
With right radial direction beam wave channel；The left radial direction beam wave channel and two, right radial direction beam wave channel are independently of each other；Coaxial output waveguide
Gap between inner cylinder and coaxial output waveguide outer barrel is axial bundle wave channel；Left radial direction beam wave channel and right radial direction beam wave channel
It is connected respectively with axial bundle wave channel；
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 be divided into the different left fan-shaped metal plate slow-wave structure of structural parameters and
Right wing shape metal plate slow-wave structure；Left sector metal plate slow-wave structure is constituted with the axial symmetry metal top plate being oppositely arranged
Left sector 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 opens up that there are 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 that electron beam generating device generates are under the action of external magnetic field generation device
Enter left radial direction beam wave channel and right radial direction beam wave channel from two fan-shaped electron beam entrance ports respectively；Left sector 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 wave 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 generate the Terahertz frequency range electromagnetism that frequency is more than 1 watt more than 0.1 Terahertz, output power
Wave.
3. the radially continuous wave Terahertz of double frequency according to claim 1 or 2 tiltedly notes pipe, it is characterised in that：Described two electricity
Beamlet entrance port is arc；Angular dimension corresponding to arc is 0 ° to 360 °；The left fan-shaped electron beam and right wing shape electricity
The start-stop angular range of beamlet is adapted with the angular dimension corresponding to two electron beam entrance port arcs.
4. the radially continuous wave 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 and right wing shape metal plate slow-wave structure are sector structure；The start-stop angle of corresponding subtended angle is identical.
5. the radially continuous wave Terahertz of double frequency according to claim 4 tiltedly notes pipe, it is characterised in that：The external magnetic field production
The amplitude of radial magnetic field that generating apparatus is generated in fan-shaped high-frequency structure is between 0.1Tesla to 1.4Tesla, the width of axial magnetic field
Value is between -0.01Tesla to 0Tesla.
6. the radially continuous wave Terahertz of double frequency according to claim 5 tiltedly notes pipe, it is characterised in that：The left fan-shaped electronics
The voltage range of beam and right wing shape electron beam is in 1.0kV between 50kV, and current density range is in 5A/cm2To 300A/cm2
Between.
7. the radially continuous wave Terahertz of double frequency according to claim 6 tiltedly notes pipe, it is characterised in that：The left fan-shaped metal
The length range in each period is between 0.02mm to 4.0mm in tablet slow-wave structure, the width range of slow-wave structure fluting
For between 0.01mm to 3.0mm, the depth of slow-wave structure fluting is between 0.02mm to 4.0mm, left sector metal plate slow wave
Between ranging from 0.1mm to the 10.0mm of length of the top of structure away from axial symmetry metal top plate；
In right wing shape metal plate slow-wave structure between ranging from 0.02mm to the 4.0mm of the length in each period, slow wave knot
Structure fluting width range between 0.01mm to 3.0mm, slow-wave structure fluting depth bounds be 0.02mm to 4.0mm it
Between, length range of the top away from axial symmetry metal top plate of left sector metal plate slow-wave structure is between 0.1mm to 10.0mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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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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