CN108615665A - A kind of Relativistic backward-wave oscillator using magnet tail field - Google Patents
A kind of Relativistic backward-wave oscillator using magnet tail field Download PDFInfo
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- CN108615665A CN108615665A CN201810608335.XA CN201810608335A CN108615665A CN 108615665 A CN108615665 A CN 108615665A CN 201810608335 A CN201810608335 A CN 201810608335A CN 108615665 A CN108615665 A CN 108615665A
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- mode structure
- wave
- magnet
- basic mode
- tail field
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J25/00—Transit-time tubes, e.g. klystrons, travelling-wave tubes, magnetrons
- H01J25/34—Travelling-wave tubes; Tubes in which a travelling wave is simulated at spaced gaps
- H01J25/42—Tubes in which an electron stream interacts with a wave travelling along a delay line or equivalent sequence of impedance elements, and with a magnet system producing an H-field crossing the E-field
- H01J25/46—Tubes in which an electron stream interacts with a wave travelling along a delay line or equivalent sequence of impedance elements, and with a magnet system producing an H-field crossing the E-field the backward travelling wave being utilised
-
- 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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- Electron Sources, Ion Sources (AREA)
Abstract
The invention discloses a kind of Relativistic backward-wave oscillators using magnet tail field, solve oversized, the preponderance of existing magnet system, it is unfavorable for the problem of device realizes miniaturization, include the cathode being arranged in the outer barrel of device and slow-wave structure, the cathode is coaxial with outer barrel, it is characterized in that the slow-wave structure includes the basic mode structure set gradually along sleeve axis direction and mode structure excessively, the mode structure of crossing guides magnetic field using the end of magnet, and the High-Power Microwave generated to basic mode structure is amplified.The Relativistic backward-wave oscillator of the present invention using the above structure can make full use of the tail field in guiding magnetic field to realize the generation of High-Power Microwave, and the overall structure of device system is compacter, more conducively the miniaturization of device system.
Description
Technical field
The invention belongs to high-power pulsed ion beams technical fields, and in particular to a kind of slow-wave structure is by basic mode structure and crosses mould
Structure is constituted, and utilizes the Relativistic backward-wave oscillator of magnet tail field.
Background technology
It is 1~300GHz models that High-Power Microwave (HPM), which generally refers to peak power in 100MW or more, working frequency,
Enclose interior electromagnetic wave.The research and development of High-Power Microwave technology and microwave device has more than 30 years history, in recent years, with
Pulse Power Techniques and the continuous development of plasma physics, High-Power Microwave technology is quickly grown, especially in high power
Great progress is achieved in terms of the development of microwave source.Up to the present, power level has been improved compared to conventional microwave source
Several magnitudes are widely used in multiple scientific domains, to also make High-Power Microwave become a new technology, it by
In the modern great power of relativistic electron beam technology and energy reserve ability by force just towards the side of shorter wavelength and ultra high power
To development.
Up to the present, the development of High-Power Microwave has passed by what the pure new concept that single power is pursued was explored
Stage, research emphasis are transferred into related with High-Power Microwave practical application more careful technical.Wherein, it improves high
Power microwave source system generation efficiency and single pulse energy, system compact, Integration Design and the intelligent high power of development
Microwave device is the main research of current High-Power Microwave source technology.The further functionization of high-power pulsed ion beams is small
Type.
Magnet system is weight in device system, the maximum component of volume accounting.As shown in Figure 1, general theory of relativity backward wave
Oscillator is integrally all placed in the uniform magnetic field region of magnet, to reduce overall dimensions, the weight of device system, realizes that device system is small
Type, a kind of feasible method are that the tail field in guiding magnetic field is made full use of to realize the generation of High-Power Microwave.
Invention content
The invention discloses a kind of Relativistic backward-wave oscillators using magnet tail field, solve the ruler of existing magnet system
Very little excessive, preponderance is unfavorable for the problem of device realizes miniaturization.High power is realized by using the tail field in guiding magnetic field
The overall structure of the generation of microwave, device system is compacter, more conducively the miniaturization of device system.
The present invention to achieve the above object, is achieved through the following technical solutions：
A kind of Relativistic backward-wave oscillator using magnet tail field includes the cathode being arranged in the outer barrel of device and slow wave knot
Structure, the cathode are coaxial with outer barrel, it is characterised in that the slow-wave structure includes the basic mode set gradually along sleeve axis direction
Structure and cross mode structure, it is described cross mode structure using magnet end guide magnetic field, to basic mode structure generate High-Power Microwave
It is amplified.
In the above-mentioned technical solutions, the basic mode structure includes front-reflection chamber, slow-wave structure and back reflection chamber.
In the above-mentioned technical solutions, basic mode structure front-reflection chamber is arranged on basic mode structure one end close to cathode, is used for
The strong current electron beam that beam wave interaction is carried out to entering basic mode structure carries out premodulated, and basic mode structure back reflection chamber is located at basic mode knot
Between structure and excessively mode structure, enhance microwave reflection, improves beam wave interaction intensity.
In the above-mentioned technical solutions, the internal diameter for crossing mode structure gradually amplifies along sleeve axis direction.
In the above-mentioned technical solutions, it is provided with corrugated waveguide structure between the basic mode structure and mistake mode structure.
In the above-mentioned technical solutions, device electronic beam transmission end has collector and corrugated horn structure.
By adopting the above-described technical solution, the present invention has following advantageous effects：
Mode structure of crossing in device of the present invention guides magnetic field using the end of magnet, reduces the axial dimension of device and corresponding reduction
Magnet size and weight, and then the overall dimensions of device are smaller compared with existing Relativistic backward-wave oscillator, weight is more
Light, the overall structure of device system is compacter, is conducive to the miniaturization of device system.
The device microwave delivery efficiency and output quality of the present invention is high, by increasing reflection cavity before and after basic mode structure, crosses mould
The microwave that structure generates basic mode structure is amplified, and prevents the breakdown of device internal electric field from improving microwave transmission efficiency；Electron beam passes
The collector of defeated end prevents strong current electron beam bombardment anode from generating plasma and generates interference to radiation microwave；And electron beam
The corrugated horn structure for transmitting end improves microwave transmission efficiency for inhibiting parasitic mode.
Description of the drawings
Fig. 1 is existing Relativistic backward-wave oscillator system structure diagram.
Fig. 2 is the Relativistic backward-wave oscillator system structure diagram of the present invention.
Fig. 3 is front section view of the present invention using the Relativistic backward-wave oscillator of magnet tail field.
Wherein：1, cathode, 2, front-reflection chamber, 3, basic mode structure, 4, after return and penetrate chamber, 5, progressive mutation corrugated waveguide structure,
6, mode structure is crossed, 7, collector, 8, corrugated horn structure, 9, intense relative annular electron beam.
Specific implementation mode
The object, technical solution and advantage of invention are more clearly understood, with reference to the accompanying drawings and embodiments, to the present invention into
Row is further described.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, it is not used to limit
The fixed present invention.
As shown in Fig. 2, a kind of Relativistic backward-wave oscillator using magnet tail field, including the cathode that is arranged in outer barrel and slow
Wave structure, cathode is coaxial with outer barrel and for emitting high current electronics, and the material of cathode generally uses graphite.
Slow-wave structure includes front and back two parts, and front is divided into the basic mode structure close to cathode setting, and latter half was mould
Structure, basic mode structure are set gradually with mode structure is crossed along the axis direction of outer barrel.The main function of basic mode structure is locked out output
Microwave frequency guides magnetic field using magnet end, generates the High-Power Microwave that pattern is basic mode.Cross the internal diameter and magnet of mode structure
The shape distribution of tail field is consistent, and internal diameter is distributed along the axis direction of outer barrel in gradually amplification, is crossed mode structure and is used for slow wave knot
The High-Power Microwave that basic mode structure generates in structure is amplified, and prevents device internal electric field from puncturing, and then improves microwave delivery efficiency.
On the basis of using the device of magnet tail field, as shown in figure 3, increase has tuned reflection before and after basic mode structure
Chamber, wherein front-reflection chamber are arranged on basic mode structure one end close to cathode, and structural parameters and the output of preceding resonant reflector are joined
Number is closely related, and effect is that the strong current electron beam progress premodulated of beam wave interaction is carried out to entering basic mode structure, is improved micro-
The efficiency of transmission of wave.Back reflection chamber is being arranged crossing between mode structure and basic mode structure, after return that penetrate the effect of chamber be enhancing microwave
Reflection, increases the interaction intensity of Shu Bo.
It is arranged in basic mode structure and between crossing mode structure and is connected with one section of progressive mutation corrugated waveguide structure, progressive mutation wave
Ripple guide structure can inhibit the parasitic mode starting of oscillation caused by device internal diameter.
Intense relative annular electron beam is sent out from cathode, enters resonant cavity by looping pit, at slow-wave structure edge along outer barrel
Axis direction be transmitted, slow-wave structure further includes the collector set gradually in Intense current transport end and ripple loudspeaker
Structure.Collector generates interference, ripple loudspeaker for preventing strong current electron beam bombardment anode from generating plasma to radiation microwave
Structure improves microwave transmission efficiency for inhibiting parasitic mode.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
All any modification, equivalent and improvement etc., should all be included in the protection scope of the present invention made by within refreshing and principle.
Claims (5)
1. a kind of Relativistic backward-wave oscillator using magnet tail field includes the cathode being arranged in the outer barrel of device and slow wave knot
Structure, the cathode are coaxial with outer barrel, it is characterised in that the slow-wave structure includes the basic mode set gradually along sleeve axis direction
Structure and cross mode structure, it is described cross mode structure using magnet end guide magnetic field, to basic mode structure generate High-Power Microwave
It is amplified.
2. a kind of Relativistic backward-wave oscillator using magnet tail field according to claim 1, it is characterised in that the base
Mode structure includes front-reflection chamber and back reflection chamber, and basic mode structure front-reflection chamber is arranged on basic mode structure one end close to cathode,
Strong current electron beam for carrying out beam wave interaction to entering basic mode structure carries out premodulated, and basic mode structure back reflection chamber is located at base
Between mode structure and excessively mode structure, enhance microwave reflection, improves beam wave interaction intensity.
3. a kind of Relativistic backward-wave oscillator using magnet tail field according to claim 1, it is characterised in that the mistake
The internal diameter of mode structure gradually amplifies along sleeve axis direction.
4. a kind of Relativistic backward-wave oscillator using magnet tail field according to claim 1, it is characterised in that the base
It is provided with progressive mutation corrugated waveguide structure between mode structure and excessively mode structure.
5. a kind of Relativistic backward-wave oscillator using magnet tail field according to claim 1, it is characterised in that the device
Part electron beam transmission end has collector and corrugated horn structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810608335.XA CN108615665B (en) | 2018-06-13 | 2018-06-13 | A kind of Relativistic backward-wave oscillator using magnet tail field |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810608335.XA CN108615665B (en) | 2018-06-13 | 2018-06-13 | A kind of Relativistic backward-wave oscillator using magnet tail field |
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| Publication Number | Publication Date |
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| CN108615665A true CN108615665A (en) | 2018-10-02 |
| CN108615665B CN108615665B (en) | 2019-09-27 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110007139A (en) * | 2019-03-28 | 2019-07-12 | 安徽华东光电技术研究所有限公司 | The method that backward wave tube oscillating microwave signal frequency and power are tested simultaneously |
| CN111916323A (en) * | 2020-08-21 | 2020-11-10 | 电子科技大学 | Over-mode dual-band extension interaction oscillator based on three-dimensional metal grid |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103137399A (en) * | 2013-02-01 | 2013-06-05 | 中国人民解放军国防科学技术大学 | Coaxial-extraction long-pulse relativistic backward-wave oscillator |
| US9111714B2 (en) * | 2013-09-04 | 2015-08-18 | Electronics And Telecommunications Research Institute | Backward-wave oscillator in communication system |
| CN106449337A (en) * | 2016-08-12 | 2017-02-22 | 中国人民解放军国防科学技术大学 | Relativistic backward-wave oscillator with collector shaped as Chinese character chang |
| CN107527781A (en) * | 2017-09-01 | 2017-12-29 | 电子科技大学 | TE capable of directly outputting11Dual-frequency relativistic backward wave oscillator of mode electromagnetic wave |
-
2018
- 2018-06-13 CN CN201810608335.XA patent/CN108615665B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103137399A (en) * | 2013-02-01 | 2013-06-05 | 中国人民解放军国防科学技术大学 | Coaxial-extraction long-pulse relativistic backward-wave oscillator |
| US9111714B2 (en) * | 2013-09-04 | 2015-08-18 | Electronics And Telecommunications Research Institute | Backward-wave oscillator in communication system |
| CN106449337A (en) * | 2016-08-12 | 2017-02-22 | 中国人民解放军国防科学技术大学 | Relativistic backward-wave oscillator with collector shaped as Chinese character chang |
| CN107527781A (en) * | 2017-09-01 | 2017-12-29 | 电子科技大学 | TE capable of directly outputting11Dual-frequency relativistic backward wave oscillator of mode electromagnetic wave |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110007139A (en) * | 2019-03-28 | 2019-07-12 | 安徽华东光电技术研究所有限公司 | The method that backward wave tube oscillating microwave signal frequency and power are tested simultaneously |
| CN110007139B (en) * | 2019-03-28 | 2021-04-13 | 安徽华东光电技术研究所有限公司 | Method for simultaneously testing frequency and power of oscillation microwave signal of backward wave tube |
| CN111916323A (en) * | 2020-08-21 | 2020-11-10 | 电子科技大学 | Over-mode dual-band extension interaction oscillator based on three-dimensional metal grid |
| CN111916323B (en) * | 2020-08-21 | 2022-10-11 | 电子科技大学 | Over-mode dual-band expansion interaction oscillator based on three-dimensional metal grid |
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| CN108615665B (en) | 2019-09-27 |
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