CN206864430U - A kind of across wave band controllable slow-wave structure folded form Relativistic backward-wave oscillator of multifrequency - Google Patents
A kind of across wave band controllable slow-wave structure folded form Relativistic backward-wave oscillator of multifrequency Download PDFInfo
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- CN206864430U CN206864430U CN201720700299.0U CN201720700299U CN206864430U CN 206864430 U CN206864430 U CN 206864430U CN 201720700299 U CN201720700299 U CN 201720700299U CN 206864430 U CN206864430 U CN 206864430U
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Abstract
The utility model discloses the controllable slow-wave structure folded form Relativistic backward-wave oscillator of across the wave band multifrequency of one kind, the device axial length for solving the High-Power Microwave of existing generation L ~ Ku wave bands is longer, the problem of being unfavorable for device miniaturization, including sleeve, the coaxial inner conductor set along sleeve axle center, two sections of slow-wave structures being stacked in sleeve, wherein one section of slow-wave structure includes band centre bore disk-loaded waveguide and set in sleeve lining, another section of slow-wave structure includes edge hole disk-loaded waveguide and set in coaxial inner conductor, two sections of slow-wave structures are each separately adjustable to make slow-wave structure be in the different cycles, strong current electron beam is under slow-wave structure period modulation state, device produces the High-Power Microwave of the controllable L ~ Ku wave bands of multifrequency.The utility model uses said structure so that Relativistic backward-wave oscillator can both realize that single device radiation produced L ~ Ku wave band High-Power Microwaves in the case where axial dimension is shorter, be advantageous to device miniaturization, Integration Design requirement.
Description
Technical field
The utility model belongs to high-power pulsed ion beams technical field, and in particular to a kind of across wave band controllable slow wave knot of multifrequency
Structure folded form Relativistic backward-wave oscillator.
Background technology
To tackle complexity frequency equipment, there is an urgent need to the core of research as a kind of for the controllable high-power pulsed ion beams of multifrequency
Part, the formation of such device is as High-Power Microwave technology progressively moves towards a kind of potential application scene that is practical and proposing
Implementation measure.Device is joined by adjustment structure under each pulse voltage in the controllable high-power pulsed ion beams course of work of multifrequency
Number can radiate the High-Power Microwave for producing different frequency successively, wherein each frequency can be produced by default according to certain rule, respectively
Frequency independently produces according to a graded, does not interfere with each other.
Because its structural parameters is easily adjusted to the sensitive relevance and structure that export microwave frequency, Relativistic backward-wave oscillator
One of main selection as the controllable high-power pulsed ion beams of multifrequency.The basic composition of Relativistic backward-wave oscillator mainly includes strong
Flow explosive emission negative electrode, reflection cavity, drift chamber, slow-wave structure and guiding magnetic field.Slow-wave structure is Relativistic backward-wave oscillator
Key area, relativistic backward wave oscillator is interacted using the backward wave in device and relativistic electron beam, so as to produce high power
Microwave, its slow-wave structure cycle directly determine caused by High-Power Microwave frequency.
In Relativistic backward-wave oscillator, the energy exchange between electron beam and microwave passes through the back ripple synchronous with electron beam
- 1 subharmonic complete, both electron beam velocity was probably equal with the group velocity of -1 subharmonic of back ripple.The theory of relativity backward wave oscillation
Device is generally operational in 600kV~800kV or so, and electron beam velocity is generally 0.8c, then radiate microwave frequency has with slow-wave structure
Relational expression：f(GHz)·d(cm)≈12.
There is relational expression to calculate in 1.5GHz~3GHz (L~S-band), slow wave by radiation microwave frequency and slow-wave structure
Structural cycle length is 8cm~4cm；7GHz~20GHz (C~Ku wave bands), slow-wave structure Cycle Length are 1.7cm~0.6cm.
By above-mentioned calculating seeing as slow-wave structure cycle and the strong incidence relation of frequency, adjusting one section of slow-wave structure merely can not realize
Relativistic backward-wave oscillator produces in the High-Power Microwave of L~Ku wave bands.To realize that single device produces covering L~Ku wave bands
High-Power Microwave, a kind of method are to use two sections of controllable slow wave periodic structures, and the slow-wave structure in two sections of adjustable cycles respectively can
Produce the controllable low-frequency range of multifrequency (L~S-band) and the controllable high band of multifrequency (C~Ku wave bands) High-Power Microwave.But this design
Method virtually extends the axial length of device, is unfavorable for device miniaturization, Integration Design requirement, more primary disadvantage is that
Add the power supply requirement in guiding magnetic field so that unit construction system is very huge.
Utility model content
The utility model provides a kind of across wave band controllable slow-wave structure folded form Relativistic backward-wave oscillator of multifrequency, solves
To realize that single device produces the High-Power Microwave of covering L~Ku wave bands, using two sections of controllable slow wave periodic structures, two sections can
The slow-wave structure of regulating cycle can produce the controllable low-frequency range of multifrequency (L~S-band) and multifrequency controllable high band (C~Ku ripples respectively
Section) High-Power Microwave, but this design method virtually extends the axial length of device, is unfavorable for device miniaturization, integrates
Change design requirement, more important is the power supply requirement for adding guiding magnetic field so that the problem of unit construction system is very huge.
The utility model utilizes coaxial Relativistic backward-wave oscillator design feature, by including two sections of slow wave knots with centre bore disk-loaded waveguide
On high band slow-wave structure reversion " folding " to coaxial inner conductor in structure, being used on coaxial inner conductor includes edge porose disc lotus
Cycle adjustable height frequency range (C~Ku wave bands) slow-wave structure of waveguide.
The utility model to achieve the above object, adopts the following technical scheme that：A kind of across wave band controllable slow-wave structure of multifrequency
Folded form Relativistic backward-wave oscillator, including sleeve, the coaxial inner conductor along the setting of sleeve axle center, are stacked with the sleeve
Two sections of slow-wave structures, described wherein one section includes the slow-wave structure with centre bore disk-loaded waveguide and is set in sleeve lining, described another
One section of slow-wave structure for including edge hole disk-loaded waveguide is set in coaxial inner conductor, and the cycle of two sections of slow wave knots passes through regulation
Mechanism is adjusted, and device can produce the High-Power Microwave of the controllable L~Ku wave bands of multifrequency.
Further, when being worked including the slow-wave structure with centre bore disk-loaded waveguide, including edge hole disk-loaded waveguide
Slow-wave structure Cycle Length is 0, and it turns into the inner wire of device.
Further, when the slow-wave structure work including edge hole disk-loaded waveguide, including the disk-loaded waveguide with centre bore
The slow-wave structure cycle be 0, it turns into one section of electron beam transmission waveguide.
Further, the slow-wave structure with centre bore disk-loaded waveguide is low-frequency range slow-wave structure, and the low-frequency range is slow
Wave structure produces the controllable High-Power Microwave of low-frequency range (L~S-band) multifrequency.
Further, the slow-wave structure of the edge hole disk-loaded waveguide is high band slow-wave structure, the high band slow wave
Structure produces the controllable High-Power Microwave of high band (C~Ku wave bands) multifrequency.
Further, including with governor motion two stepper motors being connected, the governor motion include edge porose disc lotus
Waveguide governor motion, band centre bore disk-loaded waveguide governor motion, with the step being connected with centre bore disk-loaded waveguide governor motion
Stepper motor is located at device exterior, and the stepper motor being connected with the edge hole disk-loaded waveguide governor motion is located in coaxial inner conductor
Portion.
Further, each slow-wave structure is attached by the screw rod with the equal difference pitch of thread, the governor motion
It is connected by helicitic texture with screw rod.
The utility model compared with prior art, has advantages below and beneficial effect：
Compared with prior art, the utility model utilizes coaxial Relativistic backward-wave oscillator design feature, will include in band
On high band slow-wave structure reversion " folding " to coaxial inner conductor in two sections of slow-wave structures of heart hole disk-loaded waveguide, in coaxial
Using cycle adjustable height frequency range (C~Ku wave bands) slow-wave structure for including edge hole disk-loaded waveguide on conductor.Band center porose disc lotus
When the slow-wave structure of waveguide is in running order, the edge hole disk-loaded slow-wave period modulation positioned at coaxial inner conductor is
Zero, device radiation produces the controllable High-Power Microwave of low-frequency range multifrequency；When edge hole disk-loaded slow-wave is in running order,
Band centre bore disk-loaded slow-wave period modulation is zero, and device radiation produces the controllable High-Power Microwave of high band multifrequency.
The controllable Relativistic backward-wave oscillator design method of multifrequency in the utility model takes full advantage of band center porose disc lotus
Waveguide and the high-frequency microwave physical characteristic of edge hole disk-loaded waveguide, inner wire is changed into adjustable week using edge hole disk-loaded waveguide
The slow-wave structure of phase, expand the application of coaxial Relativistic backward-wave oscillator so that Relativistic backward-wave oscillator is in axial direction
Both it can realize that single device radiation produced L~Ku wave band High-Power Microwaves in the case that size is shorter, and be advantageous to devices small again
Change, Integration Design requirement.
Brief description of the drawings
Fig. 1 is the front section view of the controllable slow-wave structure folded form Relativistic backward-wave oscillator of across wave band multifrequency.
Fig. 2 is the controllable slow-wave structure folded form Relativistic backward-wave oscillator of across wave band multifrequency in low-frequency range working condition
Front section view.
Fig. 3 is the controllable slow-wave structure folded form Relativistic backward-wave oscillator of across wave band multifrequency in high band operation state
Front section view.
Wherein：1st, sleeve, 2, produce low-frequency range band centre bore disk-loaded slow-wave, 3, produce high band edge
Hole disk-loaded slow-wave, 4, band centre bore disk-loaded waveguide governor motion, 5, edge hole disk-loaded waveguide governor motion, 6, high current
Electron beam, 7, the stepper motor being connected with edge hole disk-loaded waveguide governor motion.
Embodiment
As shown in figure 1, a kind of across wave band controllable slow-wave structure folded form Relativistic backward-wave oscillator of multifrequency, each part of device
Material is magnetism-free stainless steel.Including sleeve, its effect is fixed each slow-wave structure and relevant connection section, it is ensured that each portion of device
Divide and complete various actions around device sleeve axis.The axle center of sleeve is provided with coaxial inner conductor.
Two sections of slow-wave structures are stacked with sleeve, wherein one section of slow-wave structure includes band center porose disc lotus ripple, in sleeve
Inside set；Another section of slow-wave structure includes belt edge hole disk-loaded waveguide, is set on coaxial inner conductor.Two sections of slow-wave structures
Independently of each other, and it is each separately adjustable slow-wave structure be in the different cycles, strong current electron beam is in slow-wave structure cycle tune
Under whole state, device produces the High-Power Microwave of the controllable L~Ku wave bands of multifrequency.
It is low-frequency range slow-wave structure including the slow-wave structure with centre bore disk-loaded waveguide, slow-wave structure has equal difference by one
The screw rod of the pitch of thread is attached, and is adjusted by screw rod so that each slow-wave structure is in different cycles, low-frequency range slow-wave structure with
The relativistic electron beam interaction of low-frequency range slow-wave structure is passed through, produces controllable low-frequency range (L~S-band) high power of multifrequency
Microwave.Under extreme case, slow-wave structure Cycle Length be 0, so as to form one end electron beam transmission waveguide, be not involved in electron beam with
The interaction of slow-wave structure.
Slow-wave structure including edge hole disk-loaded waveguide is high band slow-wave structure, and slow-wave structure has equal difference spiral shell by one
Line away from screw rod be attached, adjusted by screw rod so that each slow-wave structure is in different cycles, and high band slow-wave structure is with wearing
The more relativistic electron beam interaction of high band slow-wave structure, produces controllable high band (C~Ku wave bands) high power of multifrequency
Microwave.Under extreme case, slow-wave structure Cycle Length be 0, so as to formed backward wave device vibration inner wire, be not involved in electron beam with
The interaction of slow-wave structure.
When wherein one section of slow-wave structure is in running order, the Cycle Length of another section of slow-wave structure need to adjust most 0.
Specifically, when the slow-wave structure period modulation for including edge hole disk-loaded waveguide on coaxial inner conductor is zero, including band centre bore
The slow-wave structure cycle of disk-loaded waveguide can be adjusted by device governor motion, and then more under device radiation generation low frequency state
Frequently controllable High-Power Microwave；When being zero including the slow-wave structure period modulation with centre bore disk-loaded waveguide, device is coaxially interior
The slow-wave structure cycle including edge hole hole disk-loaded waveguide can be entered by the device governor motion inside coaxial inner conductor on conductor
Row regulation, and then device radiation produces the High-Power Microwave that multifrequency is controllable under high frequency state.
Governor motion in device is easy to adjust slow-wave structure Cycle Length, and governor motion is entered by helicitic texture and screw rod
Row connection, its power are provided by stepper motor.Governor motion includes edge hole disk-loaded waveguide governor motion and with center porose disc lotus
Waveguide governor motion, the stepper motor being connected with edge hole disk-loaded waveguide governor motion is located inside coaxial inner conductor, with center
The stepper motor of hole disk-loaded waveguide governor motion connection is located at device exterior.It is fixedly connected between coaxial inner conductor and outer conductor
Support bar, support bar provide passage as electric power, and the stepper motor inside coaxial inner conductor passes through support bar and belt edge porose disc
Lotus waveguide governor motion electrically connects.
The even regulation in disk-loaded waveguide cycle is adjusted by the distance between two disk-loaded waveguide pieces to realize.It is specifically adjusted
Implementation is：Disk-loaded waveguide piece is connected by notch with metal circular waveguide, and by helicitic texture and has equal difference spiral shell
Line away from screw rod connection.Its pitch of thread of multi stage screw be respectively M, 2M, 3M ..., nM (M is screw thread distance length)；Each disk lotus ripple
The coupled screw rod of guide card is corresponding to the same.According to the needs of patten transformation frequency, rotary screw certain angle θ (units：
Radian), disk-loaded waveguide piece each move axially distance for θ M, 2 θ M, 3 θ M ..., n θ M so that disk-loaded waveguide piece is each
From axial movement distance for l, 2l, 3l ..., nl (l=θ M).So the distance between disk-loaded waveguide piece is changed into d ± l by d,
Corresponding band centre bore disk-loaded waveguide Cycle Length is changed into p ± l from p.
The controllable slow-wave structure folded form the theory of relativity backward wave of across wave band multifrequency in low-frequency range working condition as shown in Figure 2
Oscillator, it is 0 that the slow-wave structure of high band device is adjusted to Cycle Length by the screw rod being connected in this condition, is made
It turns into the inner wire of device, is not involved in the interaction of electron beam and slow-wave structure.Low-frequency range slow wave knot is adjusted by screw rod
Structure, various sizes of slow-wave structure periodic state is at, and with passing through the relativistic electron beam phase of low-frequency range slow-wave structure
Interaction, produce controllable low-frequency range (L~S-band) High-Power Microwave of multifrequency.
The controllable slow-wave structure folded form the theory of relativity backward wave of across wave band multifrequency in low-frequency range working condition as shown in Figure 3
Oscillator, it is 0 that the slow-wave structure of low-frequency range device is adjusted to Cycle Length by the screw rod being connected in this condition, is made
It turns into one section of electron beam transmission waveguide, is not involved in the interaction of electron beam and slow-wave structure.High band is adjusted by screw rod
Slow-wave structure, various sizes of slow-wave structure periodic state is at, and with passing through the theory of relativity electricity of high band slow-wave structure
Beamlet interacts, and produces controllable high band (C~Ku wave bands) High-Power Microwave of multifrequency.
Preferred embodiment of the present utility model is the foregoing is only, it is all at this not to limit the utility model
All any modification, equivalent and improvement made within the spirit and principle of utility model etc., should be included in the utility model
Protection domain within.
Claims (7)
1. a kind of across wave band controllable slow-wave structure folded form Relativistic backward-wave oscillator of multifrequency, including sleeve, set along sleeve axle center
The coaxial inner conductor put, it is characterised in that two sections of slow-wave structures are stacked with the sleeve, described wherein one section is included in band
The slow-wave structure of heart hole disk-loaded waveguide is set in sleeve lining, and the described another section slow-wave structure for including edge hole disk-loaded waveguide exists
Coaxial inner conductor is set, and the cycle of two sections of slow wave knots is adjusted by governor motion, device can produce the controllable L of multifrequency ~
The High-Power Microwave of Ku wave bands.
2. the controllable slow-wave structure folded form Relativistic backward-wave oscillator of across the wave band multifrequency of one kind according to claim 1, its
It is characterised by the slow-wave structure week for when being worked including the slow-wave structure with centre bore disk-loaded waveguide, including edge hole disk-loaded waveguide
Phase length is 0, and it turns into the inner wire of device.
3. the controllable slow-wave structure folded form Relativistic backward-wave oscillator of across the wave band multifrequency of one kind according to claim 1, its
It is characterised by the slow-wave structure for when the slow-wave structure work including edge hole disk-loaded waveguide, including the disk-loaded waveguide with centre bore
Cycle is 0, and it turns into one section of electron beam transmission waveguide.
4. the controllable slow-wave structure folded form Relativistic backward-wave oscillator of across the wave band multifrequency of one kind according to claim 1, its
It is low-frequency range slow-wave structure to be characterised by the slow-wave structure with centre bore disk-loaded waveguide, and the low-frequency range slow-wave structure produces
The controllable High-Power Microwave of low-frequency range multifrequency, the low-frequency range are L ~ S-band.
5. the controllable slow-wave structure folded form Relativistic backward-wave oscillator of across the wave band multifrequency of one kind according to claim 1, its
The slow-wave structure for being characterised by the edge hole disk-loaded waveguide is high band slow-wave structure, and the high band slow-wave structure produces high
The controllable High-Power Microwave of frequency range multifrequency, the high band are C ~ Ku wave bands.
6. the controllable slow-wave structure folded form Relativistic backward-wave oscillator of across the wave band multifrequency of one kind according to claim 1, its
It is characterised by including two stepper motors being connected with governor motion, the governor motion includes edge hole disk-loaded waveguide regulation machine
Structure, band centre bore disk-loaded waveguide governor motion, are located at the stepper motor being connected with centre bore disk-loaded waveguide governor motion
Device exterior, the stepper motor being connected with the edge hole disk-loaded waveguide governor motion are located inside coaxial inner conductor.
7. the controllable slow-wave structure folded form Relativistic backward-wave oscillator of across the wave band multifrequency of one kind according to claim 1, its
It is characterised by that each slow-wave structure is attached by the screw rod with the equal difference pitch of thread, the governor motion passes through screw thread knot
Structure is connected with screw rod.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108962705A (en) * | 2018-07-30 | 2018-12-07 | 合肥工业大学 | A kind of rectangle double grid slow-wave structure with bielectron note channel |
| CN109585242A (en) * | 2018-11-08 | 2019-04-05 | 西北核技术研究所 | A kind of double-frequency high-power microwave generator |
| CN110211855A (en) * | 2019-06-04 | 2019-09-06 | 电子科技大学 | A kind of multipole many electrons' system radiation source based on cold cathode |
-
2017
- 2017-06-16 CN CN201720700299.0U patent/CN206864430U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108962705A (en) * | 2018-07-30 | 2018-12-07 | 合肥工业大学 | A kind of rectangle double grid slow-wave structure with bielectron note channel |
| CN109585242A (en) * | 2018-11-08 | 2019-04-05 | 西北核技术研究所 | A kind of double-frequency high-power microwave generator |
| CN110211855A (en) * | 2019-06-04 | 2019-09-06 | 电子科技大学 | A kind of multipole many electrons' system radiation source based on cold cathode |
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