CN105551916A - Non-introducing magnetic field compact high-power microwave device - Google Patents
Non-introducing magnetic field compact high-power microwave device Download PDFInfo
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- CN105551916A CN105551916A CN201510922406.XA CN201510922406A CN105551916A CN 105551916 A CN105551916 A CN 105551916A CN 201510922406 A CN201510922406 A CN 201510922406A CN 105551916 A CN105551916 A CN 105551916A
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- inner conductor
- aperture plate
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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
- H01J23/12—Vessels; Containers
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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
- H01J23/09—Electric systems for directing or deflecting the discharge along a desired path, e.g. E-type
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Abstract
The invention discloses a non-introducing magnetic field compact high-power microwave device, which comprises an anode, a cathode, a coaxial inner conductor, a coupling plate, and four annular metal grid meshes, wherein the anode is provided with an accommodating cavity; the cathode is connected with the anode via an insulator and is located in the accommodating cavity; the coaxial inner conductor is connected with the anode and is located in the accommodating cavity, and the coaxial inner conductor and the accommodating cavity form a coaxial structure; the coupling plate is connected onto the end surface of the coaxial inner conductor; the four annular metal grid meshes have the same circle center but different semidiameters; the metal grid meshes are fixedly connected onto a grid mesh supporting area and the coaxial inner conductor; and the four annular metal grid meshes, the coupling plate, and the coaxial inner conductor form a resonant cavity. An electron beam emission mode is changed into a radial direction, the metal grid meshes are used for separating the cavity; as the electron beam is radially emitted, the electron beam has a large cross section, and a higher beam current strength can be transmitted in a low current density condition; and due to the radial structure, the space charge effects are small, the current limit current is large, input of large beam current can be allowed, and virtual cathode effects are not generated.
Description
Technical field
The present invention relates to high-power pulsed ion beams technical field, be specifically related to a kind of without guiding magnetic field compact high power microwave device.
Background technology
Without the research of guiding magnetic field device progressively to high power, high efficiency future development.The nineties in last century, BarryM.Marder proposes the Split-cowity oscillator based on transit-time effect, can modulate INTENSE RELATIVISTIC ELECTRON BEAM in shorter distance and not need externally-applied magnetic field.Because electric current axially will pass through disengagement chamber wire netting, and will prevent the formation of virtual cathode, therefore current density can not be excessive, so this device is high-resistance device, have impact on the power that it exports microwave to a certain extent.
Summary of the invention
As the result of various extensive and careful research and experiment, the present inventor has been found that and utilizes intense relative annular electron beam inwardly to launch, form low-impedance device, adopt the net guided electron beam transmission of multiple layer metal, formed and be separated vibration chamber, can larger raising microwave delivery efficiency.Based on this discovery, complete the present invention.
An object of the present invention is to solve at least the problems referred to above and/or defect, and the advantage will illustrated at least is below provided.
In order to realize according to these objects of the present invention and other advantage, provide a kind of without guiding magnetic field compact high power microwave device, comprising:
Anode, it is the cylinder with container cavity; The inside of described container cavity arranges wire netting Support;
Negative electrode, it to be arranged in described container cavity and to be connected on an end face of described anode by insulator; Described negative electrode is loop configuration; The inner surface of described loop configuration adheres to velveteen to produce the annular electron beam radially-inwardly launched;
Coaxial inner conductor, it is connected in described container cavity by support bar; One end of described coaxial inner conductor is positioned at the loop configuration of described negative electrode; And described coaxial inner conductor and described container cavity form coaxial configuration; The other end connection mode transducer of described coaxial inner conductor;
Coupling plate, its end face being connected to described coaxial inner conductor is positioned at the loop configuration of described negative electrode;
First annular metal grid mesh, it to be set on described coaxial inner conductor and to form coaxial configuration with coaxial inner conductor; Described first annular metal grid mesh is connected with described anode by wire netting Support; Described first annular metal grid mesh is connected with described coupling plate, and is positioned at the below of described velveteen;
Second endless metal aperture plate, it is positioned at described first annular metal grid mesh and forms spaced cavities with the first annular metal grid mesh; Described 3rd endless metal aperture plate is connected with described anode by wire netting Support;
3rd endless metal aperture plate, its be positioned at described second endless metal aperture plate and with the second endless metal grid cavity at interval; Described 3rd endless metal aperture plate is connected with described anode by wire netting Support;
4th annular metal grid mesh, it is positioned at described 3rd endless metal aperture plate and forms spaced cavities with the 3rd endless metal aperture plate and coaxial inner conductor; Described 4th annular metal grid mesh is connected with described coupling plate, coaxial inner conductor respectively;
Wherein, described first annular metal grid mesh, the second endless metal aperture plate, the 3rd endless metal aperture plate and the 4th annular metal grid mesh are the metal grid mesh with phase concentric different radii; And four endless metal aperture plates and coupling plate, coaxial inner conductor form resonant cavity.
Preferably, described insulator is for strengthening nylon insulator, and it is prepared from by strengthening nylon.
Preferably, also comprise: antenna for radiating microwave, it is connected on another end face of described anode.
Preferably, described antenna for radiating microwave is conical-horn antenna, and the antenna windows of described conical-horn antenna is prepared from by polytetrafluoroethylene.
Preferably, described anode is magnetism-free stainless steel anode, and it is prepared from by magnetism-free stainless steel, and the top of described wire netting Support adopts sunk structure.
Preferably, described coaxial inner conductor is magnetism-free stainless steel coaxial inner conductor, and it is prepared from by magnetism-free stainless steel.
Preferably, described first annular metal grid mesh, the second endless metal aperture plate, the 3rd endless metal aperture plate and the 4th annular metal grid mesh are the magnetism-free stainless steel endless metal aperture plate that thickness is 0.1cm, and it is prepared from by magnetism-free stainless steel.
Preferably, the distance of the clearance space of described first annular metal grid mesh and the second endless metal aperture plate is 1.8cm; The distance of the clearance space of described second endless metal aperture plate and the 3rd endless metal aperture plate is 1.8cm; The distance of the clearance space of described 3rd endless metal aperture plate and the 4th annular metal grid mesh is greater than 1.8cm.
Preferably, described second endless metal aperture plate is all connected with described anode with one end of the 3rd endless metal aperture plate, and the other end is all unsettled in described container cavity and and described coupling plate interval 1cm.
Preferably, described support bar has two, and microwave wavelength is transmitted at two support bar intervals 1/4th; Described support bar is magnetism-free stainless steel support bar, and it is prepared from by magnetism-free stainless steel.
The present invention at least comprises following beneficial effect:
(1) the present invention is directed to this weakness of Split-cowity oscillator, by electron beam radiation pattern by axially changing radial direction into, and then obtaining a kind of without guiding magnetic field compact high power microwave device.This devices use wire netting carrys out separation chamber, and due to electron beam radial emission, therefore the cross section of electron beam is comparatively large, can transmit higher beam intensity when current density is lower; Radial structure makes space charge effect less simultaneously, and spatial margins electric current is large, and namely this device allows larger beam electronic current input, and unlikely generation virtual cathode effect.These features make this device, and than Split-cowity oscillator, more high efficiency and more high-power microwave export;
(2) utilize intense relative annular electron beam radially-inwardly to launch, form low-impedance device, adopt multiple layer metal net guided electron beam transmission, formed and be separated vibration chamber, can larger raising microwave delivery efficiency; Calculating shows that its microwave output frequency is mainly relevant with vibration cavity configuration, and accommodation is wider, and it exports employing coaxial configuration, and microwave mode is more single, is beneficial to Microwave Extraction and radiation;
(3) adopt electron beam inwardly to launch, make overall device compact conformation, and make Microwave Extraction and patten transformation ratio be easier to realize.Microwave output frequency is main relevant with cavity resonator structure, for making overall device compact conformation, by adjusting resonant cavity radial direction and axial dimension simultaneously, can realize the output of certain frequency.The analysis of open cavity high-frequency structure is carried out to split-cavity oscillator, calculates and show in chamber, only to there is the uniform TM pattern of angle; Show that the field strength distribution in the spaced cavities that the spaced cavities that the second endless metal aperture plate and the 3rd endless metal aperture plate are formed and the 3rd endless metal aperture plate and the 4th annular metal grid mesh are formed is progressively transition to carrying out restrainting ripple mutual effect electromagnetic field analysis, make electron beam can carry out more energy exchange with microwave field, this is the main cause that device delivery efficiency is higher.
Part is embodied by explanation below by other advantage of the present invention, target and feature, part also will by research and practice of the present invention by those skilled in the art is understood.
Accompanying drawing illustrates:
Fig. 1 is the front section view of the present invention without guiding magnetic field compact high power microwave device.
Embodiment:
Below in conjunction with accompanying drawing, the present invention is described in further detail, can implement according to this with reference to specification word to make those skilled in the art.
Should be appreciated that used hereinly such as " to have ", other element one or more do not allotted in " comprising " and " comprising " term or the existence of its combination or interpolation.
Fig. 1 shows of the present invention a kind of without guiding magnetic field compact high power microwave device, comprising:
Anode 3, it is the cylinder with container cavity 13; The inside of described container cavity arranges wire netting Support 15;
Negative electrode 2, it to be arranged in described container cavity 13 and to be connected on an end face of described anode 3 by insulator 1; Described negative electrode 2 is loop configuration; Described negative electrode 2 is magnetism-free stainless steel negative electrode; The inner surface of described loop configuration adheres to velveteen 4 to produce the annular electron beam radially-inwardly launched; The effect of described insulator 1 carries out electric insulation to the negative electrode of device and anode, and be sealedly connected and fixed with it, forms vacuum chamber;
Coaxial inner conductor 9, it is connected in described container cavity 13 by support bar 10; One end of described coaxial inner conductor 9 is positioned at the loop configuration of described negative electrode 2; And described coaxial inner conductor 9 forms coaxial configuration with described container cavity 13; The other end connection mode transducer 11 of described coaxial inner conductor 9;
Coupling plate 14, its end face being connected to described coaxial inner conductor 9 is positioned at the loop configuration of described negative electrode 2;
First annular metal grid mesh 5, it to be set on described coaxial inner conductor 9 and to form coaxial configuration with coaxial inner conductor 9; Described first annular metal grid mesh 5 is connected with described anode 3 by wire netting Support 15, and described first annular metal grid mesh 5 is connected with described coupling plate 14, and is positioned at the below of described velveteen 4;
Second endless metal aperture plate 6, it is positioned at described first annular metal grid mesh 5 and forms spaced cavities with the first annular metal grid mesh 5; Described second endless metal aperture plate 6 is connected with described anode 3 by wire netting Support 15;
3rd endless metal aperture plate 7, it is positioned at described second endless metal aperture plate 6 and forms spaced cavities with the second endless metal aperture plate 6; Described 3rd endless metal aperture plate 7 is connected with described anode 3 by wire netting Support 15;
4th annular metal grid mesh 8, it is positioned at described 3rd endless metal aperture plate 7 and forms spaced cavities with the 3rd endless metal aperture plate 7 and coaxial inner conductor 9; Described 4th annular metal grid mesh 8 is connected with described coupling plate 14, coaxial inner conductor 9 respectively; The diameter that described coaxial inner conductor 9 is positioned at the part of the 4th annular metal grid mesh 8 is less than the diameter of other parts, i.e. Electron absorption load region 16, and itself and the 4th annular metal grid mesh 8 form electron collection area, its Main Function adopts metal grid mesh to be introduced by excess electron to absorb, the existence of Electron absorption load region reenters the district of microwave coaxial extraction in the other direction to prevent the electronics entering electron collection area from cutting across metal grid mesh, and then reduce microwave output power.The part that described coaxial inner conductor 9 diameter is larger is connected with anode urceolus by support bar, extracts district to form microwave coaxial.
Wherein, described first annular metal grid mesh 5, second endless metal aperture plate 6, the 3rd endless metal aperture plate 7 and the 4th annular metal grid mesh 8 are for having the metal grid mesh of phase concentric different radii; And four endless metal aperture plates (5,6,7,8) form resonant cavity with coupling plate 14, wire netting Support 15.
In this technical scheme, the effect of the first annular metal grid mesh 5 is incorporated in resonant cavity by the strong current electron beam that velveteen cathode emission produces, second endless metal aperture plate 6, the 3rd endless metal aperture plate 7 one end are fixed on device anode 3, one end is unsettled in addition, and there is certain intervals with coupling plate 14, its effect guides strong current electron beam to transmit in resonant cavity and be coupled by limit to restraint ripple strong interaction, produces High-Power Microwave.4th annular metal grid mesh 8 is connected with coupling plate 14 and coaxial inner conductor 9, and its effect is incorporated in Electron absorption collection by the electron beam having participated in the mutual effect of bundle ripple, prevents reflecting electron beam from reentering resonant cavity again, affects microwave and exports.One end of coaxial inner conductor 9 is connected with coupling plate 14, and the support bar 10 that microwave wavelength is transmitted by two time intervals 1/4th in one end is in addition fixedly connected with anode 3, and its effect makes device transmission microwave TEM pattern.The effect of mode converter 11 is TM by TEM patten transformation
01pattern.
In this technical scheme, will without vacuum degree process in guiding magnetic field compact high power microwave device to milli handkerchief magnitude with vacuum acquirement device.Apply high voltage between anode and cathode, when voltage strength reaches the electron emission threshold of cathode material, velveteen cathode emission produces radially-inwardly strong current electron beam.Strong current electron beam radially-inwardly transmits and enters resonant cavity under the first annular metal grid mesh guides, and under the guiding of the second endless metal aperture plate 6 and the 3rd endless metal aperture plate 7, in resonant cavity, complete the mutual effect of bundle ripple, energy is given microwave field by electron beam, produces High-Power Microwave.The annular metal grid mesh 8 of excess electron Shu Jing tetra-guides, and is absorbed by coaxial inner conductor.The coaxial waveguide that High-Power Microwave is consisted of coaxial inner conductor and the outer waveguide of anode is in a tem mode transmitted, and through mode converter with TM
01pattern is gone out through aerial radiation.
In technique scheme, described insulator is for strengthening nylon insulator, and it is prepared from by strengthening nylon.
In technique scheme, described microwave device also comprises: antenna for radiating microwave 12, for being gone out by microwave on its another end face being connected to described anode.
In technique scheme, described antenna for radiating microwave is conical-horn antenna, and the antenna windows of described conical-horn antenna is prepared from by polytetrafluoroethylene.
In technique scheme, described anode is magnetism-free stainless steel anode, and it is prepared from by magnetism-free stainless steel, and the top of described wire netting Support adopts sunk structure, to reduce the possibility of cathode point electric discharge.
In technique scheme, described coaxial inner conductor is magnetism-free stainless steel coaxial inner conductor, and it is prepared from by magnetism-free stainless steel.
In technique scheme, described first annular metal grid mesh, the second endless metal aperture plate, the 3rd endless metal aperture plate and the 4th annular metal grid mesh are the magnetism-free stainless steel endless metal aperture plate that thickness is 0.1cm, and it is prepared from by magnetism-free stainless steel.
In technique scheme, the distance of the clearance space of described first annular metal grid mesh 5 and the second endless metal aperture plate 6 is 1.8cm; The distance of the clearance space of described second endless metal aperture plate 6 and the 3rd endless metal aperture plate 7 is 1.8cm; The distance of the clearance space of described 3rd endless metal aperture plate 7 and the 4th annular metal grid mesh 8 is greater than 1.8cm; By four endless metal aperture plates (5,6,7,8) link together by becoming coupling effect between three spaced cavities that radial separations becomes, it is to make electronics have enough deceleration spaces that the distance of the clearance space of described 3rd endless metal aperture plate 7 and the 4th annular metal grid mesh 8 becomes large reason, thus is better microwave energy the kinetic transformation of electronics
Preferably, described second endless metal aperture plate is all connected with described anode with one end of the 3rd endless metal aperture plate, and the other end is all unsettled in described container cavity and and described coupling plate interval 1cm.
Preferably, described support bar has two, and microwave wavelength is transmitted at two support bar intervals 1/4th; Described support bar is magnetism-free stainless steel support bar, and it is prepared from by magnetism-free stainless steel.
Although embodiment of the present invention are open as above, but it is not restricted to listed in specification and execution mode utilization, it can be applied to various applicable the field of the invention completely, for those skilled in the art, can easily realize other amendment, therefore do not deviating under the universal that claim and equivalency range limit, the present invention is not limited to specific details and illustrates here and the legend described.
Claims (10)
1., without a guiding magnetic field compact high power microwave device, it is characterized in that, comprising:
Anode, it is the cylinder with container cavity, and the inside of described container cavity arranges wire netting Support;
Negative electrode, it to be arranged in described container cavity and to be connected on an end face of described anode by insulator; Described negative electrode is loop configuration; The inner surface of described loop configuration adheres to velveteen to produce the annular electron beam radially-inwardly launched;
Coaxial inner conductor, it is connected in described container cavity by support bar; One end of described coaxial inner conductor is positioned at the loop configuration of described negative electrode; And described coaxial inner conductor and described container cavity form coaxial configuration; The other end connection mode transducer of described coaxial inner conductor;
Coupling plate, its end face being connected to described coaxial inner conductor is positioned at the loop configuration of described negative electrode;
First annular metal grid mesh, it to be set on described coaxial inner conductor and to form coaxial configuration with coaxial inner conductor; Described first annular metal grid mesh is connected with described anode by wire netting Support; Described first annular metal grid mesh is connected with coupling plate, and is positioned at the below of described velveteen;
Second endless metal aperture plate, it is positioned at described first annular metal grid mesh and forms spaced cavities with the first annular metal grid mesh; Described second endless metal aperture plate is connected with described anode by wire netting Support;
3rd endless metal aperture plate, its be positioned at described second endless metal aperture plate and with the second endless metal grid cavity at interval; Described 3rd endless metal aperture plate is connected with described anode by wire netting Support;
4th annular metal grid mesh, it is positioned at described 3rd endless metal aperture plate and forms spaced cavities with the 3rd endless metal aperture plate and coaxial inner conductor; Described 4th annular metal grid mesh is connected with described coupling plate, coaxial inner conductor respectively;
Wherein, described first annular metal grid mesh, the second endless metal aperture plate, the 3rd endless metal aperture plate and the 4th annular metal grid mesh are the metal grid mesh with phase concentric different radii; And four endless metal aperture plates and coupling plate, coaxial inner conductor form resonant cavity.
2. as claimed in claim 1 without guiding magnetic field compact high power microwave device, it is characterized in that, described insulator is for strengthening nylon insulator, and it is prepared from by strengthening nylon.
3. as claimed in claim 1 without guiding magnetic field compact high power microwave device, it is characterized in that, also comprise: antenna for radiating microwave, it is connected on another end face of described anode.
4. as claimed in claim 3 without guiding magnetic field compact high power microwave device, it is characterized in that, described antenna for radiating microwave is conical-horn antenna, and the antenna windows of described conical-horn antenna is prepared from by polytetrafluoroethylene.
5. as claimed in claim 1 without guiding magnetic field compact high power microwave device, it is characterized in that, described anode is magnetism-free stainless steel anode, and it is prepared from by magnetism-free stainless steel; The top of described wire netting Support adopts sunk structure.
6. as claimed in claim 1 without guiding magnetic field compact high power microwave device, it is characterized in that, described coaxial inner conductor is magnetism-free stainless steel coaxial inner conductor, and it is prepared from by magnetism-free stainless steel.
7. as claimed in claim 1 without guiding magnetic field compact high power microwave device, it is characterized in that, described first annular metal grid mesh, the second endless metal aperture plate, the 3rd endless metal aperture plate and the 4th annular metal grid mesh are the magnetism-free stainless steel endless metal aperture plate that thickness is 0.1cm, and it is prepared from by magnetism-free stainless steel.
8. as claimed in claim 1 without guiding magnetic field compact high power microwave device, it is characterized in that, the distance of the clearance space of described first annular metal grid mesh and the second endless metal aperture plate is 1.8cm; The distance of the clearance space of described second endless metal aperture plate and the 3rd endless metal aperture plate is 1.8cm; The distance of the clearance space of described 3rd endless metal aperture plate and the 4th annular metal grid mesh is greater than 1.8cm.
9. as claimed in claim 1 without guiding magnetic field compact high power microwave device, it is characterized in that, described second endless metal aperture plate is all connected with described anode with one end of the 3rd endless metal aperture plate, and the other end is all unsettled in described container cavity and and described coupling plate interval 1cm.
10. as claimed in claim 1 without guiding magnetic field compact high power microwave device, it is characterized in that, described support bar has two, and microwave wavelength is transmitted at two support bar intervals 1/4th; Described support bar is magnetism-free stainless steel support bar, and it is prepared from by magnetism-free stainless steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510922406.XA CN105551916A (en) | 2015-12-11 | 2015-12-11 | Non-introducing magnetic field compact high-power microwave device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510922406.XA CN105551916A (en) | 2015-12-11 | 2015-12-11 | Non-introducing magnetic field compact high-power microwave device |
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| Publication Number | Publication Date |
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| CN105551916A true CN105551916A (en) | 2016-05-04 |
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| CN201510922406.XA Pending CN105551916A (en) | 2015-12-11 | 2015-12-11 | Non-introducing magnetic field compact high-power microwave device |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106785247A (en) * | 2016-11-22 | 2017-05-31 | 中国人民解放军国防科学技术大学 | Broadband coaxial High-Power Microwave TEM TM01Mode-transducing antenna |
| CN107946156A (en) * | 2017-12-04 | 2018-04-20 | 中国人民解放军国防科技大学 | Electronic collector of coaxial transit time oscillator capable of working in long pulse state |
| CN108807111A (en) * | 2018-06-13 | 2018-11-13 | 中国工程物理研究院应用电子学研究所 | A kind of no magnetic field electron beam self-excitation radiation high-power pulsed ion beams |
| CN109616393A (en) * | 2018-12-10 | 2019-04-12 | 中国工程物理研究院应用电子学研究所 | A kind of low guidance magnetic field compact high power microwave device of L-band |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106785247A (en) * | 2016-11-22 | 2017-05-31 | 中国人民解放军国防科学技术大学 | Broadband coaxial High-Power Microwave TEM TM01Mode-transducing antenna |
| CN107946156A (en) * | 2017-12-04 | 2018-04-20 | 中国人民解放军国防科技大学 | Electronic collector of coaxial transit time oscillator capable of working in long pulse state |
| CN108807111A (en) * | 2018-06-13 | 2018-11-13 | 中国工程物理研究院应用电子学研究所 | A kind of no magnetic field electron beam self-excitation radiation high-power pulsed ion beams |
| CN109616393A (en) * | 2018-12-10 | 2019-04-12 | 中国工程物理研究院应用电子学研究所 | A kind of low guidance magnetic field compact high power microwave device of L-band |
| CN109616393B (en) * | 2018-12-10 | 2020-09-22 | 中国工程物理研究院应用电子学研究所 | L-band low-guiding magnetic field compact high-power microwave device |
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Application publication date: 20160504 |