CN102881544B - A kind of longitudinal output gyrotron depressed collector electrode structure - Google Patents
A kind of longitudinal output gyrotron depressed collector electrode structure Download PDFInfo
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- CN102881544B CN102881544B CN201210372478.8A CN201210372478A CN102881544B CN 102881544 B CN102881544 B CN 102881544B CN 201210372478 A CN201210372478 A CN 201210372478A CN 102881544 B CN102881544 B CN 102881544B
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Abstract
The invention discloses a kind of depressed collector electrode structure of longitudinal output gyrotron, be characterized in that this output mode transition or output mode transducer (1) are flexibly connected with collector (3), annulus dieelctric sheet (2) is fixed on mode transition device or output mode transducer (1) is R with outer radius
6, inside radius is respectively R
4circular waveguide collector (3) between, make mode transition device and collect voltage across poles and keeps isolate, make these two part maintenances coaxially simultaneously, wherein, R
1<R
2<R
3<R
5<R
4<R
6; In mode transition device or output mode transducer, the interior hollow parts of hollow parts and collector forms electron beam channel (4) jointly.
Description
Technical field
The present invention relates to a kind of longitudinal output gyrotron depressed collector electrode structure, belong to vacuum electronics technology field.
Background technology
Gyrotron, as a class high-power microwave source of paramount importance in vacuum electronics technology field, is utilize electron beam and microwave electromagnetic field interactions produce and amplify the electronic device of microwave.It has the features such as high operate frequency, high efficiency, high-peak power and high-average power, be widely used in scientific research, industry, the dual-use microwave electron systems such as controllable thermonuclear fusion device, microwave weapon, millimetre-wave radar, precise guidance, ceramic post sintering, communication, electronic countermeasures, television broadcasting, particle accelerator, microwave remote sensing, Pulse width, to promotion national economy and social development, there is important effect.
Gyrotron structure is relatively simple, in very wide frequency range, particularly can produce pulse peak power and continuous wave power in many ways at millimeter wave, submillimeter and terahertz wave band, thus be paid much attention in the world.Under the development of plasma physics and relativistic electronics drives, people have developed the fast wave device that effectively can work at this wave band---gyrotron (1. Twiss R. Q., Roberts J. A. Electromagnetic radiation from electrons rotating in an ionized medium under the action of a uniform magnetic field. Aust. J. Phys. 1958, 11:424 ~ 432. 2. Schneider J. Stimulated emission of radiation by relativistic electrons in a magnetic field. Phys. Rev. Lett, 1959, 2:504-508. 3. A. V. Gaponov, " Interaction between irrectilinear electron beams and electromagnetic waves in transmission lines, " Izv. VUZov. Radiofiz., vol. 2, pp. 836-837, 1959.).The electronic efficiency of usual gyrotron device is about 30%, and the efficiency of hihger-power sum-squeezing device is lower.If depressed collector technology can be adopted, effectively improve Cyclotron efficiency, the high energy electron after Beam and wave interaction is noted and again releases energy, usually improve the electronic efficiency of 5%-20%; The dump energy of the electron beam after again releasing energy all is absorbed at collector area simultaneously, significantly reduce the impact of high energy electron note to collector region.In sum, how on longitudinal output gyrotron, to adopt depressed collector electrode structure, improve homogeneous tube operating efficiency, reduce high energy electron note to impact collector, make high energy electron beam obtain effectively slowing down and fully absorbing, controlling secondary emission electron, is improve gyrotron stability simultaneously, obtain the key of high-power high-efficiency, the focus and emphasis of also gyrotron research at present just.
Summary of the invention
The object of the invention is to provide a kind of longitudinal output gyrotron depressed collector electrode structure for the deficiencies in the prior art, be characterized in the device efficiency in order to improve longitudinal output gyrotron, and reduce high energy electron note to collector impact strength, thus make longitudinal output gyrotron have higher stability and efficiency
Object of the present invention is realized by following technical measures
The depressed collector electrode structure of longitudinal output gyrotron, being characterized in that depressed collector electrode structure comprises outer radius is R
3, inside radius is R
1circular waveguide and outer radius be R
3, interior inlet radius be radius is R
1exit radius is R
2radius gradual change circular waveguide composition output mode transition or output mode transducer, inside radius is R
3be R with outer radius
4annulus dieelctric sheet, and outer radius is R
6, inside radius is respectively R
4and R
5sudden change circular waveguide composition collector; Output mode transition or output mode transducer are flexibly connected with collector, and it is R that annulus dieelctric sheet is fixed on mode transition device or output mode transducer and outer radius
6, inside radius is respectively R
4sudden change circular waveguide collector between, make mode transition device and collect voltage across poles and keeps isolate, make these two part maintenances coaxially simultaneously, wherein, R
1<R
2<R
3<R
5<R
4<R
6; In mode transition device or output mode transducer, the interior hollow parts of hollow parts and collector forms electron beam channel jointly.
The bus of described output mode transition or output mode transducer is curve or meander line structure.
The bus of described collector is curve or meander line structure.
Described output mode transition or output mode transducer and collect very structural metallic materials and make.
The shape of cross section of described annulus dieelctric sheet is any one in circle, circle ring sector, trapezoidal, triangle, square or polygon.
The material of described annulus dieelctric sheet is any one in aluminium oxide ceramics, beryllium oxide ceramics or boron nitride ceramic material.
When gyrotron works, collector adds lower than the voltage in output mode transition or output mode transducer in order to step-down.
Tool of the present invention has the following advantages
The depressed collector electrode structure of longitudinal output gyrotron provided by the invention is compared with the collecting pole structure of existing longitudinal output gyrotron, the depressed collector electrode structure increased can reduce high energy electron note effectively to collector impact strength, thus make longitudinal output gyrotron have higher stability and electron beam efficiency, and obtain larger power output at millimeter wave, submillimeter and terahertz wave band; In addition, the present invention can reduce the operating voltage of gyrotron device greatly, is conducive to reducing device to the requirement of working power power output.
Accompanying drawing explanation
Fig. 1 is the depressed collector knot schematic diagram of longitudinal output gyrotron
Fig. 2 is the depressed collector electrode structure A-A cutaway view of longitudinal output gyrotron
1 output mode transition or output mode transducer, 2 medium circular ring plates, 3 collectors, 4 electron beam channel.
Embodiment
Below by embodiment, the present invention is specifically described; what be necessary to herein means out is that the present embodiment is only used to further illustrate the present invention; can not be interpreted as limiting the scope of the invention, the person skilled in the art in this field can make some nonessential improvement and adjustment according to the content of the invention described above.
Embodiment
As shown in Figure 1, the depressed collector electrode structure of longitudinal output gyrotron, there is structure simple, easily manufactured, all kinds of electronic cyclotron maser device can be widely used in, comprise gyro oscillator, gyroklystron, gyrotron traveling wave tube, Gyro-BWO and convolution twystron.Being characterized in that this depressed collector electrode structure comprises outer radius is R
3, inside radius is R
1circular waveguide and outer radius be R
3, interior inlet radius be radius is R
1exit radius is R
2radius gradual change circular waveguide composition output mode transition or output mode transducer 1, inside radius is R
3be R with outer radius
4annulus dieelctric sheet 2 and outer radius be R
6, inside radius is respectively R
4and R
5sudden change circular waveguide composition collector 3; Output mode transition or output mode transducer 1 are flexibly connected with collector 3, and annulus dieelctric sheet 2 is fixed on mode transition device or output mode transducer 1 is R with outer radius
6, inside radius is respectively R
4sudden change circular waveguide collector 3 between, make mode transition device and collect voltage across poles and keeps isolate, make these two part maintenances coaxially simultaneously, wherein, R
1<R
2<R
3<R
5<R
4<R
6; In mode transition device or output mode transducer, the interior hollow parts of hollow parts and collector forms electron beam channel 4 jointly.
The bus of described output mode transition or output mode transducer 1 is curve or meander line structure.
The bus of described collector 3 is curve or meander line structure.
The shape of cross section of described annulus dieelctric sheet 2 is any one in circle, circle ring sector, trapezoidal, triangle, square or polygon.
The material of described annulus dieelctric sheet 2 is any one in aluminium oxide ceramics, beryllium oxide ceramics, boron nitride ceramics or other vacuum medium material.
When gyrotron works, collector 3 adds lower than the voltage in output mode transition or output mode transducer 1 in order to step-down.
According to corresponding gyrotron running parameter (comprising the size of operating voltage and step-down value) and electron beam parameter, depressed collector physical dimension is adjusted accordingly.In output mode transition or output mode transducer 1, the interior hollow parts of hollow parts and collector 3 forms electron beam channel 4 jointly.
According to mode of operation and the required output mode of the capable wave band of Cyclotron, 3 D electromagnetic simulation software is utilized to carry out analogue simulation to output mode transition or output mode converter structure, obtain its dispersion characteristics and coupling impedance, choose suitable output mode transition or output mode transducer, principle is under the prerequisite ensureing output mode purity, inhibitor and competition pattern to greatest extent.
By at output mode transition or output mode transducer) and collector between add annulus dieelctric sheet and adjust geometry and the thickness of annulus dieelctric sheet, effective partition is done to output mode transition or output mode transducer and collector.When gyrotron works, collector adding, suitable voltage lower than output mode transition or output mode transducer voltage is in order to step-down, thus electron beam remaining kinetic energy is reclaimed effectively, reduce high energy electron note to collector bombardment intensity, make longitudinal output gyrotron have higher stability and electron beam efficiency, and obtain larger power output in millimeter wave and submillimeter and terahertz wave band; In addition, the present invention can reduce the operating voltage of gyrotron device greatly, is conducive to reducing device to the requirement of working power power output.
Claims (7)
1. a depressed collector electrode structure for longitudinal output gyrotron, it is characterized in that this depressed collector electrode structure comprises outer radius is R
3, inside radius is R
1circular waveguide and outer radius be R
3, interior inlet radius be radius is R
1exit radius is R
2radius gradual change circular waveguide composition output mode transition or output mode transducer (1), inside radius is R
3be R with outer radius
4annulus dieelctric sheet (2), and outer radius is R
6, inside radius is respectively R
4and R
5sudden change circular waveguide composition collector (3); Output mode transition or output mode transducer (1) are flexibly connected with collector (3), and annulus dieelctric sheet (2) is fixed on mode transition device or output mode transducer (1) is R with outer radius
6, inside radius is respectively R
4circular waveguide collector (3) between, make mode transition device and collect voltage across poles and keeps isolate, make these two part maintenances coaxially simultaneously, wherein, R
1< R
2< R
3< R
5< R
4< R
6; In mode transition device or output mode transducer, the interior hollow parts of hollow parts and collector forms electron beam channel (4) jointly.
2. the depressed collector electrode structure of longitudinal output gyrotron according to claim 1, is characterized in that the bus of described output mode transition or output mode transducer (1) is curve or meander line structure.
3. the depressed collector electrode structure of longitudinal output gyrotron according to claim 1, is characterized in that the bus of described collector (3) is curve or meander line structure.
4. the depressed collector electrode structure of longitudinal output gyrotron according to claim 1, is characterized in that described output mode transition or output mode transducer (1) and collector (3) make for structural metallic materials.
5. the depressed collector electrode structure of longitudinal output gyrotron according to claim 1, is characterized in that the shape of cross section of described annulus dieelctric sheet (2) is any one in circle, annulus, fan-shaped, trapezoidal, triangle or square.
6. the depressed collector electrode structure of longitudinal output gyrotron according to claim 1, is characterized in that the material of described annulus dieelctric sheet (2) is any one in aluminium oxide ceramics, beryllium oxide ceramics or boron nitride ceramic material.
7. the depressed collector electrode structure of longitudinal output gyrotron according to claim 1, it is characterized in that when gyrotron works, collector (3) adds lower than the voltage in output mode transition or output mode transducer (1) in order to step-down.
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| CN103632904A (en) * | 2013-04-28 | 2014-03-12 | 中国科学院电子学研究所 | Gyrotron collector |
| CN109241638B (en) * | 2018-09-14 | 2020-05-19 | 电子科技大学 | Method for designing collecting profile of gyrotron collector, gyrotron collector and gyrotron |
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| CN202905655U (en) * | 2012-09-29 | 2013-04-24 | 成都智向科技有限公司 | Longitudinal output gyrotron step-down collector structure |
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| US6998783B2 (en) * | 2003-03-03 | 2006-02-14 | L-3 Communications Corporation | Inductive output tube having a broadband impedance circuit |
| CN201594522U (en) * | 2009-12-11 | 2010-09-29 | 安徽华东光电技术研究所 | Pressure welding type collector |
| CN102074439B (en) * | 2010-12-19 | 2012-11-07 | 电子科技大学 | Circular-waveguide slow-wave structure for angularly loading spiral line |
| CN102208315B (en) * | 2011-04-26 | 2012-11-14 | 中国人民解放军国防科学技术大学 | Compact relativity backward wave oscillator (RBWO) with adjustable low-frequency-range frequency |
| CN102509686B (en) * | 2011-12-26 | 2014-12-17 | 电子科技大学 | Broadband multi-waveguide output device for rotary traveling wave tube |
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| CN202905655U (en) * | 2012-09-29 | 2013-04-24 | 成都智向科技有限公司 | Longitudinal output gyrotron step-down collector structure |
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Application publication date: 20130116 Assignee: Chengdu Aerospace Zhixiang Security Technology Co., Ltd Assignor: Chengdu Zhixiang Technology Co., Ltd. Contract record no.: X2019990000265 Denomination of invention: Depressed collector structure of longitudinal output gyrotron Granted publication date: 20150729 License type: Exclusive License Record date: 20191223 |
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