CN201138653Y - Bimodule multi-pouring travelling-wave tube grid controlled electronic gun - Google Patents
Bimodule multi-pouring travelling-wave tube grid controlled electronic gun Download PDFInfo
- Publication number
- CN201138653Y CN201138653Y CNU2007201286957U CN200720128695U CN201138653Y CN 201138653 Y CN201138653 Y CN 201138653Y CN U2007201286957 U CNU2007201286957 U CN U2007201286957U CN 200720128695 U CN200720128695 U CN 200720128695U CN 201138653 Y CN201138653 Y CN 201138653Y
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- grid
- electron gun
- wave tube
- shade
- control grid
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Abstract
A bimodule multiple beam travelling wave tube grid control electron gun is provided, which belongs to the technical field of microwave vacuum electronic component and comprises a cathode component, an inner cylinder, an external cylinder, an external cylinder sleeve structure, an electron gun insulator shell and an anode. The utility model is characterized in that: based on a single grid electron gun with only one control grid, a shade grid is positioned on the surface close to the cathode; a first control grid and a second control grid provided with a grid mesh are respectively positioned above the shade grid; the shade grid, the first control grid and the second grid are centered and fixed in solidity. Therefore, the utility model can be applied to the bimodule multiple beam travelling wave tube to ensure two power output modes for the travelling wave tube.
Description
Technical field
The utility model belongs to the microwave vacuum field of electronic devices, specially refers to a kind of bimodulus multi-traveling wave tube grided electron gun.
Background technology
Develop rapidly along with the science and techniques of defence, the requirement of the microwave vacuum electronic device of paired pulses work is more and more higher, and particularly power, working band, the mode of operation for the pulsed TWT that is used for systems such as radar, navigation satellite, the accurate guidance of guided missile requires more and more higher.Electron gun is the heart of travelling wave tube, and its pulse output power, mode of operation are played an important role.Basically determined the quality of a travelling wave tube main working performance once the electron gun of holding.
The travelling wave tube electron gun generally comprises heated filament, cathode, grid, focusing electrode and anode.It provides the notes electric current of certain current density and definite shape for travelling wave tube.The most essential difference of many notes electron guns and single notes electron gun just is that electron gun contains a plurality of electronics and annotates, thereby structurally also is very different with list notes electron gun.
The bimodulus multi-traveling wave tube is a kind of at the novel travelling wave tube that two kinds of power mode outputs are provided under the condition of work of annotating more.It has the advantage that volume is little, in light weight, operating voltage is low.These characteristics show that the bimodulus multi-traveling wave tube is specially adapted to volume, weight are had the system of specific (special) requirements, for example radar system etc.For the better advantage of performance bimodulus multi-traveling wave tube, guarantee the performance of homogeneous tube, the grided electron gun of bimodulus multi-traveling wave tube requires to accomplish that volume is little, reliable in structure, electrical property are good.The purpose of this utility model just provides such bimodulus multi-traveling wave tube grided electron gun.
Summary of the invention
Technical problem to be solved in the utility model is, at common multi-traveling wave tube electron gun, has only a control gate, thereby can only realize a kind of power output services pattern, can not satisfy the requirement of two or more power mode outputs of modern radar requirement.In onboard radar system, if adopt the travelling wave tube of single mode operation, can only use two or many pipes with different capacity output, realize bimodulus or multimode operation, cause the weight and volume of system to increase.At the situation of present multi-traveling wave tube, realize dual-mode of operation with a travelling wave tube, electron gun structure will be redesigned, make it when a multi-traveling wave tube job, provide different beam currents, thereby realize different power output.This electron gun with different beam currents is exactly the bimodulus multi-traveling wave tube grided electron gun that the present invention studies.
The purpose of this utility model provides a kind of bimodulus multi-traveling wave tube grided electron gun, and it adopts and annotates two kinds of mode current outputs of electron gun realization more one.The purpose of this utility model is achieved by the following technical solution, a kind of bimodulus multi-traveling wave tube grided electron gun, comprise cathode assembly, inner core, middle tube, outer cylindrical sleeve structure, electron gun insulator shell and anode, it is characterized in that, on single grate electronic rifle basis of having only a control grid, shade grid are set being close to cathode surface, above the shade grid, set gradually the first control grid and the second control grid that contain aperture plate again, shade grid and two control grid centering mounts.Utilize the distance between three aperture plates of CAD computed in software, regulate and determine the range of each electronics notes, annotate radius, and the line size, utilize the Mafia software simulation to calculate three-dimensional physical model again.Because the work of travelling wave tube is than big, pulse duration is wide, and the fixedly connected employing Laser Welding of each parts in the described electron gun is with of short duration being heated and performance reliable of guaranteeing each component structural of electron gun.Adopt major diameter overlay film barium-tungsten dispense cathode, alleviate the negative electrode load,, the cathode assembly consistency of performance is effectively controlled by strict control cathode emitting material prescription and manufacturing process.Take inner core, middle tube, urceolus multilayer sleeve structure, press the mould mount between each.This structure has reduced heated filament heating power and negative electrode working temperature.Reduce evaporation, life-saving.Aperture plate adopts and the support soldering processes, is beneficial to heat transfer, reduces the aperture plate temperature, reduces grid and puts, and improves the reliability of travelling wave tube work, reduces noise.Electrode surface in the electron gun is carried out special processing, guarantee the pipe long-term stable operation.The High-Voltage Insulation porcelain of electron gun shell adopts special structure, improves withstand voltage.The beneficial effects of the utility model are that this grided electron gun installs on the multi-traveling wave tube, and homogeneous tube is operated under two kinds of patterns, and dependable performance.
Description of drawings
Fig. 1 is a bimodulus multi-traveling wave tube grided electron gun structural representation.
Embodiment
With reference to Fig. 1, represent the structural representation that is used for bimodulus multi-traveling wave tube grided electron gun described in the utility model.1 is the moon-grid assembly among the figure, it is to be assembled by the set shade grid of inner core and cathode assembly front that cathode assembly 2 supports cathode assembly, fix by spot-welding technology, then with shade-grid assembled to electron gun insulator shell 9 and fix.3 is shell and blast pipe parts among the figure, and soldering has the insulating ceramics pin above it, and like this, the lead-in wire of electron gun the inside various piece just can extract by the insulating ceramics pin on the blast pipe.Blast pipe is to link together with electron gun insulator shell by the argon arc welding, and exhaust finishes, and uses the cold welding tong pinch off when sealing.An outer side of shade grid is being close to the first control grid 5, by middle tube 4 its weldering is lived, and installs to then on the electron gun insulator shell 9.At the upside of control grid 5, the second control grid 7 is being set, also be to be connected on the electron gun insulator shell 9 by urceolus 8.6 is anodes of electron gun among the figure, and it is that centering is shelved and fixed with control grid, shade grid assembly, and it is a transition member, is this electron gun and the slow wave system that is referred to as the travelling wave tube high-frequency structure are linked together.
Claims (3)
1, a kind of bimodulus multi-traveling wave tube grided electron gun, comprise cathode assembly, inner core, middle tube, outer cylindrical sleeve structure, electron gun insulator shell and anode, it is characterized in that, on single grate electronic rifle basis of having only a control grid, shade grid are set being close to cathode surface, above the shade grid, set gradually the first control grid and the second control grid that contain aperture plate again, shade grid and two control grid centering mounts.
2, bimodulus multi-traveling wave tube grided electron gun according to claim 1 is characterized in that, the fixedly connected employing Laser Welding of each parts in the described electron gun.
3, bimodulus multi-traveling wave tube grided electron gun according to claim 1 is characterized in that, described inner core, middle tube, urceolus multilayer sleeve structure are pressed the assembling of mould centering and connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201286957U CN201138653Y (en) | 2007-09-11 | 2007-09-11 | Bimodule multi-pouring travelling-wave tube grid controlled electronic gun |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201286957U CN201138653Y (en) | 2007-09-11 | 2007-09-11 | Bimodule multi-pouring travelling-wave tube grid controlled electronic gun |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201138653Y true CN201138653Y (en) | 2008-10-22 |
Family
ID=40039334
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201286957U Expired - Fee Related CN201138653Y (en) | 2007-09-11 | 2007-09-11 | Bimodule multi-pouring travelling-wave tube grid controlled electronic gun |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201138653Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102446677A (en) * | 2010-09-30 | 2012-05-09 | 中国科学院电子学研究所 | Method for inhibiting grid emission of pulsed travelling wave tube |
| CN106887371A (en) * | 2017-02-20 | 2017-06-23 | 南京三乐集团有限公司 | The highly reliable space travelling wave tube of L-band B1 frequency ranges |
| CN111328176A (en) * | 2018-12-13 | 2020-06-23 | 陕西利友百辉科技发展有限公司 | Suspended grid cathode structure, electron gun, electron accelerator and irradiation device |
-
2007
- 2007-09-11 CN CNU2007201286957U patent/CN201138653Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102446677A (en) * | 2010-09-30 | 2012-05-09 | 中国科学院电子学研究所 | Method for inhibiting grid emission of pulsed travelling wave tube |
| CN106887371A (en) * | 2017-02-20 | 2017-06-23 | 南京三乐集团有限公司 | The highly reliable space travelling wave tube of L-band B1 frequency ranges |
| CN106887371B (en) * | 2017-02-20 | 2018-11-09 | 南京三乐集团有限公司 | The highly reliable space travelling wave tube of L-band B1 frequency ranges |
| CN111328176A (en) * | 2018-12-13 | 2020-06-23 | 陕西利友百辉科技发展有限公司 | Suspended grid cathode structure, electron gun, electron accelerator and irradiation device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20081022 Termination date: 20130911 |