CN109494142A - Magnetic insulated wire oscillator with ridge loading blade structure - Google Patents
Magnetic insulated wire oscillator with ridge loading blade structure Download PDFInfo
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- CN109494142A CN109494142A CN201811391958.2A CN201811391958A CN109494142A CN 109494142 A CN109494142 A CN 109494142A CN 201811391958 A CN201811391958 A CN 201811391958A CN 109494142 A CN109494142 A CN 109494142A
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- blade
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- ridge structure
- chokes
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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
- 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
- H01J25/36—Tubes in which an electron stream interacts with a wave travelling along a delay line or equivalent sequence of impedance elements, and without magnet system producing an H-field crossing the E-field
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Abstract
The invention relates to a high-power microwave source in the technical field of high-power microwaves, in particular to a magnetic insulated wire oscillator with a ridge loading blade structure. Wherein the choke blade is loaded with ridge structures, either or both of the slow wave blade and the extraction blade. According to the magnetic insulated wire oscillator with the ridge loading blade structure, the angularly symmetrical ridge structure is loaded on the anode blade, so that the coupling impedance of the MILO can be effectively improved, the MILO power efficiency can be effectively improved, and the volume and the weight of the MILO can be smaller.
Description
Technical field
The present invention relates to a kind of high-power microwave source, especially a kind of magnetic insulation line oscillation with ridge load blade construction
Device belongs to High-Power Microwave technical field.
Background technique
Magnetically Insulated Line Oscillator (Magnetically Insulated Transmission line Oscillator,
MILO) be a kind of gigawatt coaxial orthogonal field oscillator, it have microwave irradiation power it is high, it is stable, without externally-applied magnetic field,
The advantages that compact-sized, be current high-peak power, the Typical Representative without magnetic field, compact Narrow-band HPW source, and
Most one of the high-power microwave source of development potentiality and future in engineering applications.
Traditional MILO is as shown in Figure 1, including cathode 1, chokes blade 2, slow wave blade 3, extracting blade 4, collector 5, branch
Strut 6 and anode outer cylinder 7, total is about central axis rotational symmetry.Wherein, chokes blade 2, slow wave blade 3, extraction leaf
Piece 4 is referred to as anode blade.In order to describe conveniently, hereafter provide: collector 5 is the right end of MILO at one end, and the other end is
The left end of MILO.
Traditional MILO working principle is as follows: when the pulse high-voltage that pulse power supply generates is loaded into anode outer cylinder and cathode
Between when, the upstream (collect grade except cathode portion) of cathode and downstream (collecting the cathode portion within grade) generation electronics
Line；The electron beam bombardment that cathode downstream generates arrives collector, this part electronic beam current is known as load current, and function is production
A raw angular D.C. magnetic field around cathode；The electronic beam current that the introduction by magnetic field cathode upstream laterally emits bends towards central axis
Direction is simultaneously parallel to cathode motion, so that this part electronic beam current be avoided directly to bombard anode blade, this part electronic beam current claims
For magnetic insulation electric current；It is parallel to electronic beam current that cathode drifts about to the right and has motivated electromagnetic viscosimeter and generate electricity anode blade is intracavitary
Magnetic wave (wave frequency is mainly determined by the radial depth of anode blade chamber)；Electromagnetic wave is in turn to by the electricity near accent
Beamlet stream is modulated and is formed the space-charge cloud of density unevenness, i.e. electronics spoke；When the drift velocity of electronics spoke and certain
When the phase velocity of one electromagnetic wave is synchronous, electronics spoke and the electromagnetic wave carry out strong interaction, and energy is handed to this
One electromagnetic wave, this process are known as the conversion of beam wave energy, which is able to gradually amplify and form High-Power Microwave.
Traditional MILO by physical mechanism due to being limited, i.e., load current is consumed for generating D.C. magnetic field without joining
It is converted with beam wave energy, thus it has that power efficiency is not high.
The coupled impedance for improving MILO blade construction can effectively improve the power efficiency of MILO.Therefore, high coupling is developed
Impedance MILO is had broad application prospects and important scientific research value with improving the power efficiency of MILO.
Summary of the invention
The technical problem to be solved by the present invention is proposing a kind of MILO with ridge load blade construction, improve MILO's
Power efficiency.
The technical idea that the present invention uses is that ridge structure is loaded on the anode blade of traditional MILO, the skill that the present invention uses
Art scheme is: a kind of Magnetically Insulated Line Oscillator with ridge load blade construction, it is characterised in that: including cathode 1, several anodes
Blade, collector 5, support rod 6 and anode outer cylinder 7, the collector 5 are fixed on 7 right end chamber of anode outer cylinder by support rod 6
In, the anode blade is the disk of central hollow, is sequentially fixed on the inner wall of 7 left end of anode outer cylinder, and adjacent anode leaf
Spacing between piece is L3；The anode blade includes chokes blade 2, slow wave blade 3 and extraction blade 4；The anode blade
It may be selected to be loaded with ridge structure, the ridge structure is the disk of central hollow, and the thickness of the ridge structure is less than L3Half.
In the above scheme, the first ridge structure 8 and are only loaded with respectively on the chokes blade 2 and slow wave blade 3
Two ridge structures 9.
In the above scheme, the first ridge structure 8 and the are only loaded on blade 4 respectively in the chokes blade 2 and extracting
Three ridge structures 10.
In the above scheme, it is loaded with the first ridge knot respectively on the chokes blade 2, slow wave blade 3 and extraction blade 4
Structure 8, the second ridge structure 9 and third ridge structure 10.
In the above scheme, the inside radius R of described its inside radius of first ridge structure 8 and chokes blade 23It is identical, outer half
Diameter RS1Less than the outer radius R of chokes blade 24；The inside radius R of described its inside radius of second ridge structure 9 and slow wave blade 35It is identical,
Its outer radius RS2Less than the outer radius R of slow wave blade 36。
In the above scheme, the inside radius R of described its inside radius of first ridge structure 8 and chokes blade 23It is identical, outer half
Diameter RS1Less than the outer radius R of chokes blade 24；Described its inside radius of third ridge structure 10 and the inside radius R for extracting blade 47Phase
Together, outer radius RS3Less than the outer radius R for extracting blade 48。
In the above scheme, the inside radius R of described its inside radius of first ridge structure 8 and chokes blade 23It is identical, outer half
Diameter RS1Less than the outer radius R of chokes blade 24；The inside radius R of described its inside radius of second ridge structure 9 and slow wave blade 35It is identical,
Its outer radius RS2Less than the outer radius R of slow wave blade 36；Described its inside radius of third ridge structure 10 and the inside radius for extracting blade 4
R7It is identical, outer radius RS3Less than the outer radius R for extracting blade 48。
In the above scheme, the number of the slow wave blade 3 is 3~5, and the number for extracting blade 4 is 1~4.
In the above scheme, the support rod 6, cross sectional shape are rectangular, round or other shapes, are set as 2~4
Group, every group of 6 number of support rod are no less than three and are angularly uniformly distributed.
Following technical effect can achieve using the present invention:
1. the present invention loads angular symmetrical ridge structure on anode blade, the coupled impedance of MILO can effectively improve,
So as to effectively improve MILO power efficiency；
2. output microwave frequency under the same conditions, compared with tradition MILO, the present invention can make the volume and again of MILO
It measures smaller.
Detailed description of the invention
Cross-sectional view of Fig. 1 tradition MILO along central axis.
Cross-sectional view of Fig. 2 MILO of the present invention with ridge load blade construction along central axis.
There is Fig. 3 ridge load and the coupled impedance of the MILO blade construction without ridge load to compare figure.
Specific embodiment
With reference to the accompanying drawing, the present invention is described in detail.
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.
Fig. 1 show traditional MILO along the cross-sectional view of central axis.Traditional MILO is by cathode 1, chokes blade 2, slow wave leaf
Piece 3 extracts blade 4, collector 5, support rod 6 and the composition of anode outer cylinder 7, and total is about central axis rotational symmetry.Tool
Body connection relationship is: the inner conductor of the external pulse power supply in 1 left end of cathode；Chokes blade 2, slow wave blade 3, extract blade 4 according to
It is secondary to be embedded in from anode right end, it is fixed on the inner wall of 7 left end of anode outer cylinder；Collector 5 enters from anode right end, with anode outer cylinder
7 constitute coaxial configuration；Collector 5 is fixed in the chamber of 7 right end of anode outer cylinder by support rod 6.
Cathode 1 is the convex cylindrical body to fall, and left-right parts radius is respectively R1And R2, meet R2>R1, cathode left end
The inner conductor of external pulse power supply.Chokes blade 2, slow wave blade 3 and extraction blade 4 are all the disks for central hollow.Its
In, the inside radius of chokes blade 2 is R3, outer radius R4, meet R4>R3>R2.2 left side of chokes blade is apart from 1 left side of cathode
Distance is L1, L1For 10~30mm；The inside radius of slow wave blade 3 is R5, outer radius R6；The inside radius for extracting blade 4 is R7, outside
Radius is R8, meet R8=R6=R4>R7>R5>R3.The period of two neighboring blade is L2, L2For 15~30mm, two neighboring leaf
The spacing of piece is L3, L3For 13~28mm.For MILO, the number of slow wave blade 3 is generally 3~5, extracts blade 4
Number be generally 1~4, concrete condition is depending on need of work.Chokes blade 2 has 1 in the present embodiment, slow wave blade 3
It is made of 3 slow wave blades, extracts blade 4 and be made of 2 extraction blades.It extracts 4 right end end face of blade and collector 5 is most left
Holding end face distance is L4, L4For 10~40mm.Collector 5 is connect by support rod 6 with anode outer cylinder 7, outside collector 5 and anode
Cylinder 7 constitutes coaxial export structure.The cross sectional shape of support rod 6 is rectangular, round or other shapes, can according to circumstances be set as 2
~4 groups, every group of 6 number of support rod is no less than three and is angularly uniformly distributed, and the both ends of every support rod 6 are respectively and outside anode
Cylinder 7 is fixedly connected with collector 5.The inside radius of anode outer cylinder 7 is R9, meet R9=R8=R6=R4, 7 left end of anode outer cylinder is external
The outer conductor of pulse power supply.When assembly, chokes blade 2, slow wave blade 3 and extraction blade 4 are successively from the right side of anode outer cylinder 7
Side, along inner wall that is axial, being close to anode outer cylinder 7, be embedded in along anode outer cylinder 7.
Fig. 2 is cross-sectional view of the MILO along central axis that blade construction is loaded with ridge.
The present invention does not need to change the original structure of traditional MILO, only need to be loaded on chokes blade 2 first ridge structure 8,
The second ridge structure 9 is loaded on slow wave blade 3, third ridge structure 10 is loaded on extracting blade 4.First ridge structure
8,9 and 10 be all the disk of central hollow.The inside radius of first ridge structure 8 and the inside radius R of chokes blade 23It is identical, outer radius
For RS1, with a thickness of d1, meet R3<RS1<R4；The inside radius of second ridge structure 9 and the inside radius R of slow wave blade 35It is identical, outer radius
For RS2, with a thickness of d2, meet R5<RS2<R6；The inside radius of third ridge structure 10 and the inside radius R for extracting blade 47It is identical, outer half
Diameter is RS3, with a thickness of d3, meet R7<RS3<R8；The thickness of first ridge structure 8,9 and 10 meets 2d1<L3, 2d2<L3, 2d3<L3。
Under conditions of keeping MILO other structures size constancy, only the first ridge knot of load can be selected according to working condition
Structure 8 and the second ridge structure 9 perhaps only load the first ridge structure 8 and third ridge structure 10 or the first ridge structure 8, second of load
Ridge structure 9 and third ridge structure 10.
By taking a L-band MILO as an example, it is assumed that chokes blade 2, slow wave blade 3 and the interior outer radius difference for extracting blade 4
For R3=35mm, R5=41mm, R7=49mm, R9=R8=R6=R4=85mm, blade cyclic L2=29mm, blade pitgh L3=
26mm, the microwave frequency that when no ridge generates are 1.67GHz.
If loading the first ridge structure 8 and the second ridge structure 9 in chokes blade 2 and slow wave blade 3 respectively, wherein ridge structure
Outer radius be respectively RS1=64mm, RS2=63mm, ridge structure with a thickness of d1=d2=2mm can be such that the microwave of MILO exports
Frequency is reduced to 1.57GHz.If the method for not using load ridge structure, but uses and increase by 5 inside radius R of anode outer cylinder9's
Method reduces microwave frequency, then needs to make its inside radius R990mm is increased to from 85mm.Therefore, it is in output microwave frequency
Under conditions of 1.57GHz, it is assumed that the length of MILO is constant, and outer radius R5 is reduced to 85mm from 90mm, then the volume of MILO device subtracts
It is small by 12%.
In addition, in the case where identical input electric power 18.17GW, the microwave power efficiency that when no ridge generates is
11.32%, coupled impedance is 17.14 Ω；The microwave power efficiency generated when having ridge is 15.48%, coupled impedance 75.68
Ω.Therefore, under conditions of identical input electric power, compared with traditional MILO, the function of the MILO with ridge load blade construction
Rate efficiency improves 36.75%.
Fig. 3 compares figure for the coupled impedance of common blade structure and ridge load blade construction.
Compared to common blade structure, ridge load blade construction provided by the present invention all has higher in entire frequency band
Coupled impedance value.Illustrate that the MILO that blade construction is loaded with ridge has higher coupled impedance value in entire frequency band,
Also there is higher power efficiency.
It can be seen that can effectively improve the power efficiency and coupled impedance of MILO using the present invention, effectively reduce simultaneously
The volume and weight of MILO device.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Made any modifications, equivalent replacements, and improvements etc., should all be included in the protection scope of the present invention within mind and principle.
Claims (9)
1. a kind of Magnetically Insulated Line Oscillator with ridge load blade construction, it is characterised in that: including cathode (1), several anodes
Blade, collector (5), support rod (6) and anode outer cylinder (7), the collector (5) are fixed on outside anode by support rod (6)
In cylinder (7) right end chamber, the anode blade is the disk of central hollow, is sequentially fixed on the inner wall of anode outer cylinder (7) left end,
And the spacing between adjacent anode blade is L3；The anode blade includes chokes blade (2), slow wave blade (3) and extraction leaf
Piece (4)；The anode blade may be selected to be loaded with ridge structure, and the ridge structure is the disk of central hollow, the thickness of the ridge structure
Degree is less than L3Half.
2. the Magnetically Insulated Line Oscillator according to claim 1 with ridge load blade construction, it is characterised in that: only in institute
It states and is loaded with the first ridge structure (8) and the second ridge structure (9) respectively on chokes blade (2) and slow wave blade (3).
3. the Magnetically Insulated Line Oscillator according to claim 1 with ridge load blade construction, it is characterised in that: only in institute
It states chokes blade (2) and extracts and be loaded with the first ridge structure (8) and third ridge structure (10) respectively on blade (4).
4. the Magnetically Insulated Line Oscillator according to claim 1 with ridge load blade construction, it is characterised in that: described
Chokes blade (2), slow wave blade (3) and extract blade (4) on be loaded with respectively the first ridge structure (8), the second ridge structure (9) and
Third ridge structure (10).
5. the Magnetically Insulated Line Oscillator according to claim 2 with ridge load blade construction, it is characterised in that: described the
The inside radius R of one ridge structure (8) its inside radius and chokes blade (2)3It is identical, outer radius RS1It is outer less than chokes blade (2)
Radius R4；The inside radius R of described its inside radius of second ridge structure (9) and slow wave blade (3)5It is identical, outer radius RS2Less than slow
The outer radius R of wave blade (3)6。
6. the Magnetically Insulated Line Oscillator according to claim 3 with ridge load blade construction, it is characterised in that: described the
The inside radius R of one ridge structure (8) its inside radius and chokes blade (2)3It is identical, outer radius RS1It is outer less than chokes blade (2)
Radius R4；Described its inside radius of third ridge structure (10) and the inside radius R for extracting blade (4)7It is identical, outer radius RS3It is less than
Extract the outer radius R of blade (4)8。
7. the Magnetically Insulated Line Oscillator according to claim 4 with ridge load blade construction, it is characterised in that: described the
The inside radius R of one ridge structure (8) its inside radius and chokes blade (2)3It is identical, outer radius RS1It is outer less than chokes blade (2)
Radius R4；The inside radius R of described its inside radius of second ridge structure (9) and slow wave blade (3)5It is identical, outer radius RS2Less than slow
The outer radius R of wave blade (3)6；Described its inside radius of third ridge structure (10) and the inside radius R for extracting blade (4)7It is identical, outside
Radius is RS3Less than the outer radius R for extracting blade (4)8。
8. -7 any Magnetically Insulated Line Oscillator with ridge load blade construction according to claim 1, it is characterised in that:
The number of the slow wave blade (3) is 3~5, and the number for extracting blade (4) is 1~4.
9. -7 any Magnetically Insulated Line Oscillator with ridge load blade construction according to claim 1, it is characterised in that:
The support rod (6), cross sectional shape are rectangular, round or other shapes, are set as 2~4 groups, every group of support rod (6) number
Mesh is no less than three and is angularly uniformly distributed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811391958.2A CN109494142B (en) | 2018-11-21 | 2018-11-21 | Magnetic insulated wire oscillator with ridge loading blade structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811391958.2A CN109494142B (en) | 2018-11-21 | 2018-11-21 | Magnetic insulated wire oscillator with ridge loading blade structure |
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| CN109494142A true CN109494142A (en) | 2019-03-19 |
| CN109494142B CN109494142B (en) | 2021-04-30 |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101651074A (en) * | 2009-07-22 | 2010-02-17 | 电子科技大学 | Ridge loading zigzag waveguide slow wave line |
| CN102339708A (en) * | 2011-10-11 | 2012-02-01 | 电子科技大学 | Gradient ridge loading tortuous waveguide slow wave line |
| CN104038157A (en) * | 2014-06-20 | 2014-09-10 | 中国工程物理研究院应用电子学研究所 | Magnetically insulated transmission line oscillator |
| 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 |
| CN105719925A (en) * | 2016-04-22 | 2016-06-29 | 中国人民解放军国防科学技术大学 | High band magnetically insulated transmission line oscillator |
| CN205488027U (en) * | 2016-01-29 | 2016-08-17 | 中国工程物理研究院应用电子学研究所 | Controllable no magnetic field high power microwave device of dual -frenquency |
-
2018
- 2018-11-21 CN CN201811391958.2A patent/CN109494142B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101651074A (en) * | 2009-07-22 | 2010-02-17 | 电子科技大学 | Ridge loading zigzag waveguide slow wave line |
| CN102339708A (en) * | 2011-10-11 | 2012-02-01 | 电子科技大学 | Gradient ridge loading tortuous waveguide slow wave line |
| CN104038157A (en) * | 2014-06-20 | 2014-09-10 | 中国工程物理研究院应用电子学研究所 | Magnetically insulated transmission line oscillator |
| 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 |
| CN205488027U (en) * | 2016-01-29 | 2016-08-17 | 中国工程物理研究院应用电子学研究所 | Controllable no magnetic field high power microwave device of dual -frenquency |
| CN105719925A (en) * | 2016-04-22 | 2016-06-29 | 中国人民解放军国防科学技术大学 | High band magnetically insulated transmission line oscillator |
Non-Patent Citations (1)
| Title |
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| 王兵 等: "脊加载同轴径向线慢波结构设计", 《太赫兹科学与电子信息学报》 * |
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Inventor after: Wang Xiaoyu Inventor after: Fan Yuwei Inventor after: Shu Ting Inventor after: Li Ankun Inventor after: Yu Yuanqiang Inventor after: Liu Zeyang Inventor before: Wang Xiaoyu Inventor before: Fan Yuwei Inventor before: Shu Ting Inventor before: Li Ankun Inventor before: Yu Yuanqiang Inventor before: Liu Zeyang |
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