CN201918352U - Slow wave system structure for helixes - Google Patents
Slow wave system structure for helixes Download PDFInfo
- Publication number
- CN201918352U CN201918352U CN2010206707206U CN201020670720U CN201918352U CN 201918352 U CN201918352 U CN 201918352U CN 2010206707206 U CN2010206707206 U CN 2010206707206U CN 201020670720 U CN201020670720 U CN 201020670720U CN 201918352 U CN201918352 U CN 201918352U
- Authority
- CN
- China
- Prior art keywords
- helix
- system structure
- wave system
- tube case
- helixes
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Microwave Tubes (AREA)
Abstract
The utility model discloses a slow wave system structure for helixes. The slow wave system structure comprises a helix and a vacuum tube case sleeved outside the helix, wherein the vacuum tube case consists of an inner tube case and an outer tube case which are compounded together; a plurality of fixing holes are formed on the inner tube case and uniformly distributed at the periphery of the helix; and cylindrical man-made diamond clamp bodies are mounted in the fixing holes. The slow wave system structure can be used for better electric insulation clamping of the helixes, can better conduct heat quantity on the helixes to the vacuum tube case, simultaneously reduces the consumption of man-made diamond and saves the cost.
Description
Technical field
The utility model relates to the helix TWT field, relates in particular to a kind of helix line slow-wave system structure.
Background technology
Travelling wave tube is the power amplifying device that a kind of kinetic energy that utilizes high-velocity electrons to annotate and with the microwave signal mutual effect electronics is annotated is converted into microwave energy.The range of application of travelling wave tube is very wide, and nearly all satellite communication all uses travelling wave tube as final amplifier.In most of radar systems, all to use one or some travelling wave tube as the high power amplifier that produces the high-frequency emission pulse.In addition, travelling wave tube can also be used in some high power amplifier in miscellaneous equipment, as the drive(r) stage of crossed field amplifier.Though proposed the travelling wave tube high-frequency circuit topology of many types, mainly have only two classes, promptly at the helix of broadband occasion use and the coupling cavity that uses in large-power occasions.
The travelling wave tube helix structure is quite accurate, is necessary for it reliable support is provided.It is impracticable fully using the metal clamping, because it can exert an influence to the high-frequency structure of circuit.The cylindrical dielectric tube that surrounds helix around the modern helix TWT general using provides good clamping and heat radiation.Because the dielectric constant of the ceramic material that can use is all than higher, in order to reduce the loading effect of ceramic material clamp structure as far as possible, many travelling wave tube also use thin wedge shape supporting rod.
The material of helix supporting rod commonly used has aluminium oxide, beryllium oxide, three kinds of potteries of boron nitride now.Wherein the machinery of aluminium oxide ceramics and structural behaviour are good, but conductive coefficient is less, are difficult to use in high power travelling wave tube.The machinery of beryllium oxide ceramics and structural behaviour and aluminium oxide ceramics are approaching, and very high conductive coefficient is arranged, but because the beryllium oxide dust is a kind of extremely toxic substance, therefore along with the raising of environmental requirement, beryllium oxide ceramics progressively uses in restriction.The heat conductivility of boron nitride ceramics is fine, but its mechanical performance is relatively poor, be difficult to shape, and boron nitride is a kind of anisotropic material, so it uses certain limitation is also arranged.
The travelling wave tube engineer is seeking new helix supporting rod material always, and wherein diamond is a kind of desirable material.Because adamantine heat conductivility is than the taller order of magnitude of beryllium oxide, its lossy microwave is also little than all the other ceramic materials.But therefore natural diamond raw material rareness does not obtain to use always.In recent years, the performance of synthetic diamond is more and more ripe, for the practicability of diamond supporting rod provides the foundation.But the synthetic diamond price is still than other supporting rod material expensive commonly used, and synthetic diamond is difficult to make grow up shaft-like, so, must at first solve two shaft-like difficult problems that it costs an arm and a leg and is difficult to make growth if it is practical to allow the diamond supporting rod obtain.
The utility model content
The utility model purpose provides a kind of helix line slow-wave system structure, can't satisfy the problem that helix requires heat conduction and mechanical performance with the helix supporting rod of the ceramic material that solves prior art.
In order to achieve the above object, the technical scheme that the utility model adopted is:
A kind of helix line slow-wave system structure, include helix, and be enclosed within helix outer with the described helix vacuum envelope of central shaft altogether, it is characterized in that: described vacuum envelope is composited by interior shell and outer pipe shell, the shell shell wall is provided with a plurality of fixing holes in described, around described fixing hole is evenly distributed on helix along the hand of spiral of helix, be separately installed with columned diamond cramping body in the fixing hole, described diamond cramping body one end is fixed in the fixing hole, and the other end is against on the helix.
In the utility model,, can bear higher average power as the slow wave system of cramping body so use synthetic diamond because synthetic diamond has good heat conduction and microwave property.Synthetic diamond cramping body in the utility model is not usually said supporting rod.Because synthetic diamond is difficult to be made into elongated rod shape, be processed into all directions size rectangular-shaped or cylindric below 10mm but synthetic diamond can be more convenient.
The utility model adopts the synthetic diamond cramping body of a fairly large number of roundlet column to come helix is carried out clamping, these synthetic diamond cramping bodies evenly distribute along the hand of spiral of helix, the one end carries out clamping to helix, and the relative other end directly is welded among the interior shell.So promptly can carry out electric insulation clamping preferably, the heat on the helix can well be transmitted to vacuum envelope again helix.Reduced the consumption of synthetic diamond simultaneously, provided cost savings.
Description of drawings
Fig. 1 is the utility model cross sectional representation.
Fig. 2 is the utility model vertical section schematic diagram.
Embodiment
As shown in Figure 1 and Figure 2.A kind of helix line slow-wave system structure, include helix 1, and be enclosed within the outer vacuum envelope with helix 1 common central shaft of helix 1, vacuum envelope is composited by interior shell 3 and outer pipe shell 4, interior shell 3 shell walls are provided with a plurality of fixing holes, and fixing hole is separately installed with columned diamond cramping body 2 around being evenly distributed on helix 1 along the hand of spiral of helix 1 in the fixing hole, diamond cramping body 2 one ends are fixed in the fixing hole, and the other end is against on the helix 1.
In the utility model, helix 1 is formed by material coilings such as molybdenum, tungsten or copper; Synthetic diamond cramping body 2 effect is to insulating clamping and heat dissipation channel is provided between helix 1 and the vacuum envelope.Vacuum envelope is composited by interior shell 3 and outer pipe shell 4, be processed with the circular hole corresponding on the interior shell 3 with synthetic diamond cramping body 2, make the synthetic diamond cramping body can be placed on wherein, 4 pairs of helixes 1 of outer pipe shell, synthetic diamond cramping body 2, interior shell 3 position and fix, and make helix 1, synthetic diamond cramping body 2, interior shell 3 be among the vacuum.Interior shell 3 and outer pipe shell 4 can be made by monel alloy or disperse oxygen-free copper.
The shape of synthetic diamond cramping body 2 is little cylinders as can be seen in Fig. 2, and this cylinder not only is easy to processing and fabricating, and thermal resistance is little, can well heat conduction.Simultaneously single cylinder volume is little, has saved the consumption of material, can significantly save cost.Simultaneously, less clamping material also can reduce lossy microwave.
Claims (1)
1. helix line slow-wave system structure, include helix, and be enclosed within helix outer with the described helix vacuum envelope of central shaft altogether, it is characterized in that: described vacuum envelope is composited by interior shell and outer pipe shell, the shell shell wall is provided with a plurality of fixing holes in described, around described fixing hole is evenly distributed on helix along the hand of spiral of helix, be separately installed with columned diamond cramping body in the fixing hole, described diamond cramping body one end is fixed in the fixing hole, and the other end is against on the helix.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206707206U CN201918352U (en) | 2010-12-21 | 2010-12-21 | Slow wave system structure for helixes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206707206U CN201918352U (en) | 2010-12-21 | 2010-12-21 | Slow wave system structure for helixes |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201918352U true CN201918352U (en) | 2011-08-03 |
Family
ID=44418143
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206707206U Expired - Fee Related CN201918352U (en) | 2010-12-21 | 2010-12-21 | Slow wave system structure for helixes |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201918352U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106425216A (en) * | 2016-10-17 | 2017-02-22 | 北京真空电子技术研究所(中国电子科技集团公司第十二研究所） | Welding mold of slow wave line of crossed field amplifier |
-
2010
- 2010-12-21 CN CN2010206707206U patent/CN201918352U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106425216A (en) * | 2016-10-17 | 2017-02-22 | 北京真空电子技术研究所(中国电子科技集团公司第十二研究所） | Welding mold of slow wave line of crossed field amplifier |
| CN106425216B (en) * | 2016-10-17 | 2018-02-02 | 北京真空电子技术研究所(中国电子科技集团公司第十二研究所） | A kind of weld mold of crossed field amplifier slow wave line |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105161390B (en) | New meta-materials high-power microwave source | |
| CN104470017B (en) | A kind of load coil device | |
| CN102074439B (en) | Circular-waveguide slow-wave structure for angularly loading spiral line | |
| CN106803473B (en) | A kind of 0.34THz travelling-wave tubes | |
| CN107591305B (en) | A kind of compact oscillator based on cold cathode | |
| CN104599805A (en) | Terahertz (THz)-source strong-magnetic-focused magnet system | |
| CN201918352U (en) | Slow wave system structure for helixes | |
| CN102592924B (en) | Slow-wave system for Ka-band travelling wave tube and manufacturing method for slow-wave system | |
| CN103354199B (en) | One adds ridge microstrip line plane slow wave structure | |
| CN201877392U (en) | Structure of periodic permanent magnetic focusing system for traveling wave tube | |
| CN202917423U (en) | A hollow cathode assembly | |
| CN202076224U (en) | Traveling wave tube structure for microwave power module | |
| CN107795445B (en) | A kind of annular magnetic steel ring cutting field ion thruster structure and main support ring | |
| CN203103259U (en) | Slow wave structure for C-and-X waveband travelling wave tube | |
| CN201838555U (en) | High-frequency window applying molybdenum-copper-nickel alloy | |
| CN209216911U (en) | A kind of level Four depressed collector of high working voltage | |
| CN201717234U (en) | Energy transfer window structure for X-waveband space traveling-wave tube | |
| CN201946558U (en) | Spiral line clamping structure using clamping rods made of multiple medium materials | |
| CN103441054B (en) | A kind of traveling-wave tube collector | |
| CN208367114U (en) | A kind of direct-heated cathode comprehensive performance test device | |
| CN203911186U (en) | High performance precise microwave adapter | |
| CN203491210U (en) | Travelling wave tube collector | |
| CN102324355B (en) | Travelling wave tube spiral line clamping device and assembly process thereof | |
| CN204155898U (en) | A kind of cold cathode producing cylindrical many note INTENSE RELATIVISTIC ELECTRON BEAM | |
| CN206546809U (en) | A kind of 0.34THz travelling-wave tubes |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110803 Termination date: 20151221 |
|
| EXPY | Termination of patent right or utility model |