CN101908456B - High-frequency structure and centering method for gyrotron amplifier - Google Patents
High-frequency structure and centering method for gyrotron amplifier Download PDFInfo
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- CN101908456B CN101908456B CN200910085883XA CN200910085883A CN101908456B CN 101908456 B CN101908456 B CN 101908456B CN 200910085883X A CN200910085883X A CN 200910085883XA CN 200910085883 A CN200910085883 A CN 200910085883A CN 101908456 B CN101908456 B CN 101908456B
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- circular waveguide
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- centering
- mesopore
- frequency structure
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Abstract
The invention discloses a high-frequency structure for a gyrotron amplifier. A plurality of coupling slots are formed on a loading circular waveguide; a cuboid attenuating porcelain corresponds to each coupling slot direction respectively so as to absorb a high-frequency field leaked by the coupling slots; two centering holes of 60 degrees are formed on the loading circular waveguide and an unloading circular waveguide respectively; and a solder groove is formed on the circumference of the unloading circular waveguide on two sides. The centering method comprises the following steps of: putting a respective centering rod into a central hole and one of the centering holes of the loading circular waveguide; inserting the unloading circular waveguide into the centering rod and pressing; inserting the other loading circular waveguide into the centering rod and pressing along the direction of the centering holes; inserting another unloading circular waveguide along the direction of the centering holes; repeating the operation in turn, and determining the periodicity and the entire length according to the needed attenuation; and pressing the whole circular waveguides and putting the solder into the solder groove for braze welding.
Description
Technical field
The invention belongs to microwave technical field, can be applicable to the high power millimeter wave device.
Background technology
Gyrotron traveling wave tube amplifier has high power, high-gain and wide band characteristics in millimere-wave band; Be with a wide range of applications and development potentiality at aspects such as radar imagery, electronic countermeasures, anti-stealthy target acquisitions, be a kind of coherent source that receives much attention in the high power millimeter wave source.The gyrotron traveling wave tube high-frequency structure is that electronics is annotated and interactional place takes place radio-frequency field, is used for realizing that the electronics notes shift to electromagnetic field energy.Common way is that the mutual effect structure adopts smooth circular waveguide, apply the graphite-like absorbing material at tube wall and suppress spontaneous vibration, but it can not satisfy the needs of high-average power.
Summary of the invention
The purpose of this invention is to provide a kind of high-frequency structure that is used for gyrotron amplifier.
Another object of the present invention provides a kind of centering method of high-frequency structure of above-mentioned gyrotron amplifier.
For realizing above-mentioned purpose; The high-frequency structure that is used for gyrotron amplifier provided by the invention; Evenly have a plurality of coupling lines of rabbet joint in loading centre bore radiation ground, circular waveguide upper edge; Corresponding separately cuboid attenuation ceramic on each line of rabbet joint direction that is coupled, this attenuation ceramic is no magnetic attenuating material, such as the mixture of beryllium oxide (BeO) with carborundum (SiC).To absorb radio-frequency field by the coupling slot seam leakage;
Load circular waveguide with do not have load respectively offer on the circular waveguide two be 60 ° to mesopore;
Do not have on the both sides circumference that loads circular waveguide and offer solder bath, can also load circular waveguide upper edge radius in nothing and offer a steam vent.
Centering method provided by the invention; Be to put into centering rod separately in to mesopore in the centre bore that loads circular waveguide and one of them; To not have the circular waveguide of loading insertion centering rod then and compress, and follow another is loaded circular waveguide according to the mesopore direction being inserted centering rod and compressing, then load circular waveguide along another nothing of direction insertion to mesopore; Repeat the operation of front successively, attenuation is as required confirmed periodicity and whole length backward; After whole circular waveguide compresses, in solder bath, put into scolder and carry out the soldering welding.When not having the circular waveguide of loading centering, can select another to mesopore, make it become 60 ° of rotations with previous loading circular waveguide.If need exhaust, then not having the loading circular waveguide is that the nothing that has steam vent loads circular waveguide.
The present invention can be used for suppressing the various parasitic oscillation of gyrotron traveling wave tube amplifier electronics notes-Bo mutual effect process, improves the stability of gyrotron traveling wave tube work, thereby reaches the purpose that promotes its power output and efficient.The present invention can be used in the high-average power gyrotron traveling wave tube structure, has overcome tube wall and has applied the deficiency that the graphite-like absorbing material can not be used for high-average power.
Description of drawings
Fig. 1 is the structure chart that loads circular waveguide, and mark 1 is the coupling line of rabbet joint among the figure, and 2 is attenuation ceramic, and 3 is to mesopore.
Fig. 2 does not have the structure chart that loads circular waveguide, and mark 4 is a solder bath among the figure.
Fig. 3 is out do not have to load the begin to rehearse structure chart of pore of circular waveguide, and mark 5 is a steam vent among the figure.
Fig. 4 is a centering rod, and a is the centering rod in smooth waveguide core hole, and b is the centering rod to mesopore.
Fig. 5 is the assembling process sketch map of whole smooth circular waveguide.
Embodiment
See also Fig. 1 and Fig. 2, the present invention is made up of smooth circular waveguide periodic arrangement, in each Cycle Length, loads circular waveguide by loading circular waveguide and nothing and forms jointly, and loading circular waveguide length and nothing loading circular waveguide length are looked required attenuation size and adjusted.Evenly having a plurality of coupling lines of rabbet joint 1, the quantity of the coupling line of rabbet joint is not limit, and is example with 3 in the present embodiment with loading the centre bore A radiation of smooth circular waveguide upper edge.The attenuation ceramic 2 of a corresponding separately cuboid on the coupling line of rabbet joint 1 direction, the effect of this attenuation ceramic 2 are to absorb by the coupling line of rabbet joint 1 to leak the radio-frequency field of coming.Also have two on the circular waveguide to mesopore 3,3 ' loading, two to mesopore 3,3 ' with attenuation ceramic 2 symmetrical distributions.Two angles that mesopore presented 60 °.Do not have the circular waveguide of loading and have only two to mesopore 3,3 ', the be not coupled line of rabbet joint and attenuation ceramic have a circle solder bath 4 (as shown in Figure 2) on the both sides circumferencial direction that does not have the loading circular waveguide.Unobstructed when guaranteeing exhaust, the nothing of one-period loads and has also opened a steam vent 5 (seeing also Fig. 3) on the smooth circular waveguide therein.
See also Fig. 4 and Fig. 5, when assembling, load the centering rod a that circular waveguide centre bore A puts into centre bore; One mesopore 3 put into centering rod b therein; To not have loading waveguide then and insert centering rod a, b, and compress, then another will be loaded circular waveguide according to the mesopore direction being inserted centering rod and compressing; When assembling, can select another, make it become 60 ° of angular turn with previous loading circular waveguide to mesopore 3 '.Then do not have the circular waveguide of loading along the direction of mesopore is inserted another, repeat the operation of front backward successively, attenuation is as required confirmed periodicity and whole length.If need exhaust, then do not have the loading circular waveguide and replace with the nothing loading circular waveguide of being with steam vent 5.After whole circular waveguide compresses, in solder bath 4, put into scolder and carry out the soldering welding.Whole process has guaranteed the concentricity of waveguide, can reduce the influence of the foozle of each part to centering.
Claims (6)
1. a high-frequency structure that is used for gyrotron amplifier evenly has a plurality of coupling lines of rabbet joint in loading centre bore radiation ground, circular waveguide upper edge, and corresponding separately cuboid attenuation ceramic on each line of rabbet joint direction that is coupled is to absorb the radio-frequency field by the coupling slot seam leakage;
Load circular waveguide with do not have load respectively offer on the circular waveguide two be 60 ° to mesopore;
There is not the solder bath of offering on the both sides circumference that loads circular waveguide.
2. high-frequency structure as claimed in claim 1, wherein, attenuation ceramic is no magnetic attenuating material.
3. according to claim 1 or claim 2 high-frequency structure, wherein, attenuation ceramic is the mixture of beryllium oxide and carborundum.
4. high-frequency structure as claimed in claim 1 wherein, does not have the circular waveguide of loading upper edge radius and offers a steam vent.
5. centering method that is used for the high-frequency structure of gyrotron amplifier; Put into centering rod separately in the centre bore that loads circular waveguide and one of them in to mesopore; To not have the circular waveguide of loading insertion centering rod then and compress, and follow another is loaded circular waveguide according to the mesopore direction being inserted centering rod and compressing, then load circular waveguide along another nothing of direction insertion to mesopore; Repeat the operation of front successively, attenuation is as required confirmed periodicity and whole length backward; After whole circular waveguide compresses, in solder bath, put into scolder and carry out the soldering welding;
Wherein, when not having the circular waveguide of loading centering, select another, make it become 60 ° of rotations with previous loading circular waveguide to mesopore.
6. centering method as claimed in claim 5, wherein, not having the loading circular waveguide is that the nothing that has steam vent loads circular waveguide.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910085883XA CN101908456B (en) | 2009-06-03 | 2009-06-03 | High-frequency structure and centering method for gyrotron amplifier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910085883XA CN101908456B (en) | 2009-06-03 | 2009-06-03 | High-frequency structure and centering method for gyrotron amplifier |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101908456A CN101908456A (en) | 2010-12-08 |
| CN101908456B true CN101908456B (en) | 2012-07-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN200910085883XA Active CN101908456B (en) | 2009-06-03 | 2009-06-03 | High-frequency structure and centering method for gyrotron amplifier |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5056306A (en) * | 1988-03-23 | 1991-10-15 | Zepf Hans Rudolf | Track assembly for track-laying vehicle |
| CN101299477A (en) * | 2008-06-11 | 2008-11-05 | 电子科技大学 | Grooved waveguide for electron cyclotron |
-
2009
- 2009-06-03 CN CN200910085883XA patent/CN101908456B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5056306A (en) * | 1988-03-23 | 1991-10-15 | Zepf Hans Rudolf | Track assembly for track-laying vehicle |
| CN101299477A (en) * | 2008-06-11 | 2008-11-05 | 电子科技大学 | Grooved waveguide for electron cyclotron |
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| Publication number | Publication date |
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| CN101908456A (en) | 2010-12-08 |
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