CN113972122A - Permanent magnet packaging high-power microwave device - Google Patents
Permanent magnet packaging high-power microwave device Download PDFInfo
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- CN113972122A CN113972122A CN202111249125.4A CN202111249125A CN113972122A CN 113972122 A CN113972122 A CN 113972122A CN 202111249125 A CN202111249125 A CN 202111249125A CN 113972122 A CN113972122 A CN 113972122A
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- permanent magnet
- power microwave
- slow wave
- wave structure
- preposed
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- 238000004806 packaging method and process Methods 0.000 title description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 12
- 238000010894 electron beam technology Methods 0.000 claims description 9
- 239000011888 foil Substances 0.000 claims description 3
- 238000005265 energy consumption Methods 0.000 abstract description 5
- 238000006243 chemical reaction Methods 0.000 abstract description 3
- 230000035484 reaction time Effects 0.000 abstract description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012536 packaging technology Methods 0.000 description 1
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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
- H01J23/00—Details of transit-time tubes of the types covered by group H01J25/00
- H01J23/02—Electrodes; Magnetic control means; Screens
- H01J23/04—Cathodes
-
- 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
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- Microwave Tubes (AREA)
Abstract
The invention provides a permanent magnet package high-power microwave device, which comprises an annular cathode; the annular cathode output rear stage is sequentially connected with and provided with a preposed reflecting cavity, a slow wave structure and a collector, permanent magnets are arranged at the positions of the preposed reflecting cavity and the slow wave structure to form magnetic poles, and the permanent magnets are distributed along the circumference by taking the connecting line of the preposed reflecting cavity and the slow wave structure as an axis; a reflector is arranged at the end of the slow wave structure. The invention adopts the permanent magnet, and is further provided with the reflector and the tapered waveguide, thereby having low energy consumption, high conversion efficiency, large microwave power and wider pulse width; the whole structure is compact, the problems of energy consumption and the like caused by the traditional magnetic field generation mode are solved, the reaction time of the high-power microwave device is shortened, and the engineering application is convenient to realize.
Description
Technical Field
The invention relates to a permanent magnet packaging high-power microwave device.
Background
At present, high-power microwaves are widely applied to target detection and damage, and many colleges and research institutions in China carry out research on high-power microwave devices, so that the high-power microwave devices become the research hotspots of the high-power microwave devices in foreign countries.
At present, the university of electronic technology has realized the permanent magnet packaging technology of a magnetron, but the generated power is lower, the significance of engineering application is not great, and at present, a permanent magnet packaging high-power microwave device based on a relativistic backward wave tube oscillator does not exist in China.
Disclosure of Invention
In order to solve the technical problems, the invention provides a permanent magnet packaged high-power microwave device which adopts a permanent magnet, is further provided with a reflector and a tapered waveguide, has low energy consumption, high conversion efficiency, large microwave power and wider pulse width, and is convenient for realizing engineering application.
The invention is realized by the following technical scheme.
The invention provides a permanent magnet package high-power microwave device, which comprises an annular cathode; the annular cathode output rear stage is sequentially connected with and provided with a preposed reflecting cavity, a slow wave structure and a collector, permanent magnets are arranged at the positions of the preposed reflecting cavity and the slow wave structure to form magnetic poles, and the permanent magnets are distributed along the circumference by taking the connecting line of the preposed reflecting cavity and the slow wave structure as an axis; a reflector is arranged at the end of the slow wave structure.
The tail section of the reflector is provided with a tapered waveguide.
The upper part of the collector is provided with a water inlet, and the lower part of the collector is provided with a water outlet.
In vertical projection, the water outlet and the water inlet are overlapped.
The tapered waveguide is a front-stage small end and a rear-stage large end.
The annular cathode, the preposed reflection cavity and the slow wave structure are coaxial.
The front reflection cavity is a non-foil high-current electron beam diode.
The diameter of the reflector is smaller than the diameter of the large end of the tapered waveguide.
The invention has the beneficial effects that: the permanent magnet is adopted, and a reflector and a tapered waveguide are further arranged, so that the energy consumption is low, the conversion efficiency is high, the microwave power is high, and the pulse width is wide; the whole structure is compact, the problems of energy consumption and the like caused by the traditional magnetic field generation mode are solved, the reaction time of the high-power microwave device is shortened, and the engineering application is convenient to realize.
Drawings
Fig. 1 is a schematic structural view of the present invention.
In the figure: 1-annular cathode, 2-front reflection cavity, 3-slow wave structure, 4-reflector, 5-permanent magnet, 6-tapered waveguide and 7-collector.
Detailed Description
The technical solution of the present invention is further described below, but the scope of the claimed invention is not limited to the described.
Example 1
A permanent magnet packaged high power microwave device as shown in fig. 1, comprising an annular cathode 1; the output rear stage of the annular cathode 1 is sequentially connected with and provided with a preposed reflecting cavity 2, a slow wave structure 3 and a collector 7, permanent magnets 5 are arranged at the positions of the preposed reflecting cavity 2 and the slow wave structure 3 to form magnetic poles, and the permanent magnets 5 are distributed along the circumference by taking the connecting line of the preposed reflecting cavity 2 and the slow wave structure 3 as an axis; at the end of the slow wave structure 3 there is a reflector 4.
Example 2
Based on the embodiment 1, the reflector 4 has a tapered waveguide 6 at the end.
Example 3
Based on embodiment 1, the collector 7 has a water inlet at the upper part and a water outlet at the lower part.
Example 4
Based on example 3, the water outlet and the water inlet overlap in vertical projection.
Example 5
Based on the embodiment 2, the tapered waveguide 6 is a front-stage small end and a rear-stage large end.
Example 6
Based on the embodiment 1, the annular cathode 1, the front reflection cavity 2 and the slow wave structure 3 are coaxial.
Example 7
Based on example 1, the front reflector cavity 2 is a foil-free high current electron beam diode.
Example 8
Based on embodiment 1, the diameter of the reflector 4 is smaller than the diameter of the large end of the tapered waveguide 6.
It is easy to understand that the main principle of the present invention lies in: non-foil strong currentThe beam diode generates a thin relativistic ring-shaped electron beam, and the electron beam passes through a relativistic backward wave tube oscillator and a space TM under the guidance of a permanent magnetic field01The-1 time return wave of the mode is interacted, after an electron beam entering a relativistic return wave tube oscillator is interacted with the structural wave, the radiated microwave is transmitted backwards and further interacted with the electron beam entering backwards, the energy of the electron beam is given to a microwave field, the microwave is amplified, the microwave is reflected again by a preposed reflecting cavity at the starting end of the relativistic return wave tube oscillator, the microwave is transmitted forwards and radiated out through a transmitting device, and the residual electron beam losing energy is collected at a collecting electrode. A permanent magnet packaged high-power microwave device based on a relativistic backward wave tube oscillator.
Claims (8)
1. A permanent magnet package high-power microwave device comprises an annular cathode (1), and is characterized in that: the output rear stage of the annular cathode (1) is sequentially connected with and provided with a preposed reflecting cavity (2), a slow wave structure (3) and a collector (7), permanent magnets (5) are arranged at the positions of the preposed reflecting cavity (2) and the slow wave structure (3) to form magnetic poles, and the permanent magnets (5) are distributed along the circumference by taking the connecting line of the preposed reflecting cavity (2) and the slow wave structure (3) as an axial lead; the end of the slow wave structure (3) is provided with a reflector (4).
2. The permanent magnet packaged high power microwave according to claim 1, characterized in that: the tail section of the reflector (4) is provided with a tapered waveguide (6).
3. The permanent magnet packaged high power microwave according to claim 1, characterized in that: the upper part of the collector (7) is provided with a water inlet, and the lower part is provided with a water outlet.
4. The permanent magnet packaged high power microwave according to claim 3, characterized in that: in vertical projection, the water outlet and the water inlet are overlapped.
5. The permanent magnet packaged high power microwave according to claim 2, characterized in that: the tapered waveguide (6) is a front-stage small end and a rear-stage large end.
6. The permanent magnet packaged high power microwave according to claim 1, characterized in that: the annular cathode (1), the preposed reflection cavity (2) and the slow wave structure (3) are coaxial.
7. The permanent magnet packaged high power microwave according to claim 1, characterized in that: the front reflection cavity (2) is a non-foil high-current electron beam diode.
8. The permanent magnet packaged high power microwave according to claim 1, characterized in that: the diameter of the reflector (4) is smaller than the diameter of the large end of the tapered waveguide (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111249125.4A CN113972122A (en) | 2021-10-26 | 2021-10-26 | Permanent magnet packaging high-power microwave device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111249125.4A CN113972122A (en) | 2021-10-26 | 2021-10-26 | Permanent magnet packaging high-power microwave device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113972122A true CN113972122A (en) | 2022-01-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111249125.4A Pending CN113972122A (en) | 2021-10-26 | 2021-10-26 | Permanent magnet packaging high-power microwave device |
Country Status (1)
| Country | Link |
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| CN (1) | CN113972122A (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3268761A (en) * | 1963-04-03 | 1966-08-23 | Hughes Aircraft Co | Traveling-wave tube slow-wave structure including multiple helices interconnected byspaced conductive plates |
| 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 |
| CN104992892A (en) * | 2015-07-17 | 2015-10-21 | 中国工程物理研究院应用电子学研究所 | Permanent-magnet packaging relativistic magnetron |
| CN105280462A (en) * | 2015-11-06 | 2016-01-27 | 西北核技术研究所 | Relativistic backward wave oscillator for generating linearly polarized TE11 mode directly |
| CN105428190A (en) * | 2015-11-06 | 2016-03-23 | 西北核技术研究所 | Relativistic backward wave oscillator of direct circular polarization TE11 mode |
| CN106099289A (en) * | 2016-07-22 | 2016-11-09 | 中国航天时代电子公司 | A kind of high power width temperate zone line microwave isolator |
| CN106253031A (en) * | 2016-08-12 | 2016-12-21 | 中国人民解放军国防科学技术大学 | Submicrosecond level long pulse high efficiency the Theory of Relativity Cherenkov's agitator |
| CN108470667A (en) * | 2018-03-29 | 2018-08-31 | 中国人民解放军国防科技大学 | Light and small type permanent magnet packaged Ku waveband coaxial transit device |
| CN108834247A (en) * | 2018-05-11 | 2018-11-16 | 东北大学 | A kind of engineering rock mass microwave fracturing HIGH-POWERED MICROWAVES generator |
| CN112151342A (en) * | 2020-10-12 | 2020-12-29 | 中国人民解放军国防科技大学 | Magnetron based on gigawatt high-power microwave source hard tube and permanent magnet package |
-
2021
- 2021-10-26 CN CN202111249125.4A patent/CN113972122A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3268761A (en) * | 1963-04-03 | 1966-08-23 | Hughes Aircraft Co | Traveling-wave tube slow-wave structure including multiple helices interconnected byspaced conductive plates |
| 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 |
| CN104992892A (en) * | 2015-07-17 | 2015-10-21 | 中国工程物理研究院应用电子学研究所 | Permanent-magnet packaging relativistic magnetron |
| CN105280462A (en) * | 2015-11-06 | 2016-01-27 | 西北核技术研究所 | Relativistic backward wave oscillator for generating linearly polarized TE11 mode directly |
| CN105428190A (en) * | 2015-11-06 | 2016-03-23 | 西北核技术研究所 | Relativistic backward wave oscillator of direct circular polarization TE11 mode |
| CN106099289A (en) * | 2016-07-22 | 2016-11-09 | 中国航天时代电子公司 | A kind of high power width temperate zone line microwave isolator |
| CN106253031A (en) * | 2016-08-12 | 2016-12-21 | 中国人民解放军国防科学技术大学 | Submicrosecond level long pulse high efficiency the Theory of Relativity Cherenkov's agitator |
| CN108470667A (en) * | 2018-03-29 | 2018-08-31 | 中国人民解放军国防科技大学 | Light and small type permanent magnet packaged Ku waveband coaxial transit device |
| CN108834247A (en) * | 2018-05-11 | 2018-11-16 | 东北大学 | A kind of engineering rock mass microwave fracturing HIGH-POWERED MICROWAVES generator |
| CN112151342A (en) * | 2020-10-12 | 2020-12-29 | 中国人民解放军国防科技大学 | Magnetron based on gigawatt high-power microwave source hard tube and permanent magnet package |
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