CN205319119U - Magnetically insulated transmission line oscillator - Google Patents
Magnetically insulated transmission line oscillator Download PDFInfo
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- CN205319119U CN205319119U CN201620053113.2U CN201620053113U CN205319119U CN 205319119 U CN205319119 U CN 205319119U CN 201620053113 U CN201620053113 U CN 201620053113U CN 205319119 U CN205319119 U CN 205319119U
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- line oscillator
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- insulation line
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Abstract
The utility model discloses a magnetically insulated transmission line oscillator, including positive pole urceolus, negative pole and collector, be provided with the positive pole blade on the positive pole urceolus inner wall, the collector passes through the bracing piece to be fixed in the positive pole urceolus, is provided with from the input direction of the oscillator positive pole urceolus at positive pole blade rear and draws the chamber, the utility model discloses in progressively reduce through the thickness with the positive pole blade, reduced the short period to participate in or do not participate in restrainting - proportion of the electron beam of ripples mutual effect, improved bundle - conversion efficiency of ripples mutual effect, set up and draw the chamber, added bundle - energy conversion processes of ripples mutual effect to improve microwave extraction's efficiency, reached as high as 20%.
Description
Technical field
The invention belongs to microwave electron field, be specifically related to a kind of magnetic insulation line oscillator, the present invention can be applied to High-Power Microwave technical field.
Background technology
Along with the progress of plasma technique, Pulse Power Techniques and the development of complicated PIC simulation tool, High-Power Microwave technology also grows up rapidly, especially in the development of high-power microwave source, achieve great progress, wide variety of different types of high-power pulsed ion beams has successively occurred. Wherein, magnetic insulation line oscillator (MILO) is the coaxial cross field device of GW magnitude, closely similar with linear magnetron. MILO does not need externally-applied magnetic field, and its direct magnetic field provides by tube interior electric current, and the DC electric field orthogonal with it determines the drift velocity of electronics together. The direct magnetic field that MILO produces stops electronics from emission of cathode to anode, and this kind has stopped the electron puncture of anode and cathode from insulation mechanism, allows higher impressed voltage and higher power input. Due to without the need to externally-applied magnetic field, MILO easily accomplishes miniaturization and practical.
Owing to being subject to the restriction of physical mechanism, namely part tube interior electric current is consumed for the direct magnetic field producing insulation and does not participate in bundle-Bo energy transformation, and therefore the power efficiency of MILO is all not high enough. Name is called the article (light laser and particle beam, the 19th volume the 5th phase P in 2007) of " the experiment research of ladder cathode type L-band MILO ", discloses the experiment power conversion efficiency about 10% of a kind of MILO; Name is called article (light laser and the particle beam of " design of high-efficiency magnetic insulated wire vibrator and numerical simulation ", 20th volume the 5th phase P in 2008), disclose a kind of high-level efficiency MILO, its numerical simulation power efficiency reaches 20%, but this MILO structure is more complicated, and Project Realization is more difficult. For this reason, when structure is relatively simple and engineering easily realizes, it is to increase the power efficiency of magnetic insulation vibrator has important meaning.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of magnetic insulation line oscillator, and for improving the power efficiency of magnetic insulation vibrator (MILO), its power efficiency can reach about 20%.
The technical scheme realizing the present invention is:
A kind of magnetic insulation line oscillator, comprise anode urceolus, negative electrode and collector, being provided with anode blade on described anode outer tube inner wall, described collector is fixed in anode urceolus by support bar, is provided with and extracts chamber from the input direction of vibrator on the anode urceolus at anode blade rear.
In technique scheme, described extraction chamber forms groove along anode outer tube inner wall outer wall direction.
In technique scheme, described extraction chamber and anode urceolus concentric, be evenly arranged on anode outer tube inner wall.
In technique scheme, the width in described extraction chamber and highly adjustable.
In technique scheme, described anode blade comprises 1～3 cut out tab arranged successively, 3～6 main slow wave blades and 1 extraction blade.
In technique scheme, the central aperture of each cut out tab described is close, and the central aperture of each main slow wave blade is close.
In technique scheme, described cut out tab central aperture is less than main slow wave blade center aperture, and main slow wave blade center aperture is less than extracts blade center aperture.
In technique scheme, the vane thickness of described cut out tab, main slow wave blade and extraction blade diminishes successively gradually.
In technique scheme, the thickness of described extraction blade is 1mm～3mm.
The principle of work of the magnetic insulation line oscillator of the present invention is: under the effect of highfield, electronics is from the side-emitted of negative electrode out, wherein a part is collected pole absorption, anode is flowed back to again through the support bar between collector and anode, this part electronic beam current is called load current, its function produces a poloidal magnetic field around negative electrode, and the electron beam under slow-wave structure blade is produced the effect of magnetic insulation by this magnetic field. Drift about vertically under the acting in conjunction of the radial electric field of the electronics being under slow-wave structure blade between anode and cathode and poloidal magnetic field, when the drift velocity of electronics is close to the phase velocity of anode slow-wave structure microwave field, electron beam and field (bundle-Bo) interact, the energy transformation of electron beam is the energy of field, produce High-Power Microwave, namely the axial movement of electron beam to the right carries out restrainting-Bo energy transformation; Especially the thickness of blade is extracted by reducing anode blade thickness, then reduce the ratio extracting the corresponding ejected electron bundle of blade in total current, this portions of electronics bundle distance collector is very near, its do not participate in bundle-Bo mutual effect or the participation time very short, then just it is collected collected by pole or anode, therefore improve the ratio participating in for a long time restrainting the electron beam of-Bo mutual effect, bundle-Bo efficiency of conversion can be improved; In addition, by increasing suitable extraction chamber, be both conducive to bundle-wave interaction, be conducive to again the extraction of microwave power. Extract the radiating antenna that the High-Power Microwave exported is transferred to coaxial line and rear end again.
Compared with prior art, it is an advantage of the current invention that:
In the present invention, anode vane thickness diminishes gradually, especially extracts vane thickness and diminishes to minimum (usual 1～3mm), thus reduce the short period and participate in or do not participate in the ratio of electron beam restrainting-Bo mutual effect, it is to increase the efficiency of conversion of bundle-Bo mutual effect; 2nd is: increases by 1 microwave extraction chamber on the anode urceolus after extracting blade, thus adds the conversion process of energy of bundle-Bo mutual effect, and improves the efficiency of microwave extraction; Its power efficiency can reach about 20%.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention;
Wherein: 1 is negative electrode, 2 is anode urceolus, and 3,4,5 is bucket, and 6,7,8 is main slow wave blade, and 9 is extract blade, and 10 is extract chamber, and 11 is collector, and 12 is support bar.
Embodiment
Below in conjunction with accompanying drawing, the present invention is described in detail.
In order to make the object of the present invention, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the present invention is further elaborated. It is to be understood that specific embodiment described herein is only in order to explain the present invention, it is not intended to limit the present invention.
In FIG, a kind of high-efficiency magnetic insulated wire vibrator of the present invention, comprising on negative electrode, anode urceolus, anode outer tube inner wall seven anode blades, extraction chamber, collector and the support bar that arrange, support bar is made up of two concentric(al) circless and along the circumferential direction equally distributed four supports.
In the present embodiment, the thickness of seven anode blades is respectively 8mm, 8mm, 8mm, 7mm, 6mm, 5mm, 2mm, is provided with one and extracts chamber.
Its connection relation is, the anode blade arranged successively on anode outer tube inner wall is bucket that three central apertures are close, three, stage casing central aperture is close main slow wave blade, one extract blade and one extract chamber, wherein bucket central aperture is less than main slow wave blade center aperture, stage casing, and main slow wave blade center aperture, stage casing is less than extracts blade center aperture.
In described anode urceolus, right-hand member is provided with collector, collector is fixed in anode urceolus by support bar, the inner circle of support bar is connected with collector, the interior circular diameter of support bar mates with collector external diameter, the cylindrical of support bar is connected with anode urceolus, and the external diameter of the cylindrical of support bar mates with the internal diameter of anode urceolus.
The urceolus of the external high-voltage pulse power source of the left end of anode urceolus, the left end of negative electrode is connected with the interior conductor of high-voltage pulse power source.
In the present embodiment, the support bar arranged in anode urceolus is two rows. The cavity internal diameter arranging anode blade is less than the internal diameter of anode urceolus.
The working process of the magnetic insulation vibrator of the present invention is, a high electric field pulse is inputted by high-voltage pulse power source, under the effect of highfield, electronics is from the side-emitted of negative electrode out, radial electric field between anode and cathode and drifting about vertically under the acting in conjunction of poloidal magnetic field, when the drift velocity of electronics is suitable with the phase velocity of anode slow-wave structure microwave field, electron beam and field interactions, the energy transformation of electron beam is the energy of microwave field, produces High-Power Microwave. In PIC simulates, according to L-band design, the device voltage 635kV as input electric power 42.2GW, exports microwave power 8.7GW, and power efficiency reaches 20.6%, and output microwave frequency is 1.54GHz.
The foregoing is only the better embodiment of the present invention, not in order to limit the present invention, all any amendment, equivalent replacement and improvement etc. done within the spirit and principles in the present invention, all should be included within protection scope of the present invention.
Claims (9)
1. a magnetic insulation line oscillator, comprise anode urceolus, negative electrode and collector, described anode outer tube inner wall is provided with anode blade, described collector is fixed in anode urceolus by support bar, it is characterised in that is provided with on the anode urceolus at anode blade rear from the input direction of vibrator and extracts chamber.
2. a kind of magnetic insulation line oscillator according to claim 1, it is characterised in that described extraction chamber forms groove along anode outer tube inner wall outer wall direction.
3. a kind of magnetic insulation line oscillator according to claim 2, it is characterised in that described extraction chamber and anode urceolus concentric, be evenly arranged on anode outer tube inner wall.
4. a kind of magnetic insulation line oscillator according to claim 3, it is characterised in that the width in described extraction chamber and highly adjustable.
5. a kind of magnetic insulation line oscillator according to claim 1, it is characterised in that described anode blade comprises 1～3 cut out tab arranged successively, 3～6 main slow wave blades and 1 extraction blade.
6. a kind of magnetic insulation line oscillator according to claim 5, it is characterised in that the central aperture of each cut out tab described is close, and the central aperture of each main slow wave blade is close.
7. a kind of magnetic insulation line oscillator according to claim 6, it is characterised in that described cut out tab central aperture is less than main slow wave blade center aperture, main slow wave blade center aperture is less than extracts blade center aperture.
8. according to a kind of magnetic insulation line oscillator described in any one in claim 5～7, it is characterised in that described cut out tab, main slow wave blade and the vane thickness extracting blade diminish successively gradually.
9. a kind of magnetic insulation line oscillator according to claim 8, it is characterised in that the thickness of described extraction blade is 1mm～3mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620053113.2U CN205319119U (en) | 2016-01-20 | 2016-01-20 | Magnetically insulated transmission line oscillator |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620053113.2U CN205319119U (en) | 2016-01-20 | 2016-01-20 | Magnetically insulated transmission line oscillator |
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| CN205319119U true CN205319119U (en) | 2016-06-15 |
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| CN201620053113.2U Active CN205319119U (en) | 2016-01-20 | 2016-01-20 | Magnetically insulated transmission line oscillator |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105470074A (en) * | 2016-01-20 | 2016-04-06 | 中国工程物理研究院应用电子学研究所 | Magnetically insulated transmission line oscillator |
| CN109935507A (en) * | 2019-03-08 | 2019-06-25 | 长沙魔豆智能科技有限公司 | A kind of coaxial gaussian model Microwave Extraction device of magnetron |
-
2016
- 2016-01-20 CN CN201620053113.2U patent/CN205319119U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105470074A (en) * | 2016-01-20 | 2016-04-06 | 中国工程物理研究院应用电子学研究所 | Magnetically insulated transmission line oscillator |
| CN109935507A (en) * | 2019-03-08 | 2019-06-25 | 长沙魔豆智能科技有限公司 | A kind of coaxial gaussian model Microwave Extraction device of magnetron |
| CN109935507B (en) * | 2019-03-08 | 2020-11-20 | 长沙魔豆智能科技有限公司 | Magnetron coaxial Gaussian mode microwave extractor |
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