CN202025709U - Slow wave structure used for Ku waveband traveling-wave tube - Google Patents
Slow wave structure used for Ku waveband traveling-wave tube Download PDFInfo
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- CN202025709U CN202025709U CN2011201361390U CN201120136139U CN202025709U CN 202025709 U CN202025709 U CN 202025709U CN 2011201361390 U CN2011201361390 U CN 2011201361390U CN 201120136139 U CN201120136139 U CN 201120136139U CN 202025709 U CN202025709 U CN 202025709U
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- interlude
- deferent segment
- attenuator
- input section
- slow wave
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Abstract
The utility model discloses a slow wave structure used for a Ku waveband traveling-wave tube. Two cavities are arranged on the slow wave structure to divide the slow wave structure into an input section, a middle section and an output section, wherein attenuators are arranged on two sides of each cavity; and spiral lines are arranged at the interiors of the input section, the output section and the middle section. The slow wave structure has the advantages of large work band width, high electronic efficiency, good heat dissipating property, impact and vibration resistance and higher reliability, thereby suiting Ku waveband wideband pulse spiral line traveling-wave tube.
Description
Technical field:
The utility model relates to microwave electron tube field, particularly a kind of slow wave structure that is used for Ku wave band travelling wave tube.
Background technology:
Travelling wave tube is a kind of microwave electron tube at present, and the final stage that is mainly used in microwave signal is amplified, and it is widely used in the military and civilian field.Satisfy travelling wave tube broadband, high-power, advantage that reliability is high, need improve the electronic efficiency of slow wave system as much as possible.Only under synchronous condition, just can carry out effective interaction because electronics is annotated with high-frequency signal, thereby the energy that the electronics notes can be surrendered to radio-frequency field is the pairing kinetic energy of part that its speed exceeds than synchronizing speed.Present travelling wave tube electronic efficiency is low, and is easy to generate self-oscillation.
The utility model content:
The utility model technical issues that need to address provide a kind of slow wave structure of the Ku of being used for wave band travelling wave tube to reach the purpose that improves the travelling wave tube electronic efficiency.
In order to solve the problems of the technologies described above the technical solution of the utility model be, a kind of slow wave structure that is used for Ku wave band travelling wave tube, described slow wave structure is a tubulose, described slow wave structure is provided with two cavitys, described cavity is divided into the input section with slow wave structure, interlude and deferent segment, described cavity both sides are provided with attenuator, and the inside of the inside of described input section, the inside of deferent segment and interlude all is provided with helix.
Described input section is by the input piece housing, and the input section spiral line is imported the section attenuator and formed, and described input section spiral line is connected with the input piece housing by supporting rod, and described input section attenuator is arranged on the end of input section near cavity.
Described interlude is by the interlude housing, the interlude helix, and the interlude attenuator is formed, and described interlude helix is connected with the interlude housing by supporting rod, and described interlude attenuator is arranged on the two ends of interlude.
Described deferent segment is by the deferent segment housing, the deferent segment helix, and the deferent segment attenuator is formed, and described deferent segment helix is connected with the deferent segment housing by supporting rod, and described deferent segment attenuator is arranged on an end of the close cavity of deferent segment.
Described attenuator is the carbon film attenuator.
The length of described interlude is greater than the length of deferent segment, and the length of deferent segment is greater than the length of input section.
The utility model compared with prior art slow wave structure is provided with two cavitys, described cavity is divided into the input section with slow wave structure, interlude and deferent segment, described cavity both sides are provided with attenuator, and the inside of the inside of described input section, the inside of deferent segment and interlude all is provided with helix, the work zone is roomy, the electronic efficiency height, perfect heat-dissipating, impact resisting vibrating, have higher characteristics such as reliability, be fit to be applied to Ku wide waveband tape pulse helix TWT.
Description of drawings:
Below in conjunction with the drawings and specific embodiments the utility model is described in further details;
Fig. 1 is the utility model structural representation;
In Fig. 1,1, input section, 2, interlude, 3, deferent segment, 4, supporting rod, 5, cavity, 6, the input section spiral line, 7, an input section attenuator, 8, the interlude helix, 9, the interlude attenuator, 10, the deferent segment helix, 11, the deferent segment attenuator.
Embodiment:
The contrast accompanying drawing, by description to embodiment, to effect and operation principle, the manufacturing process of the mutual alignment between the shape of embodiment of the present utility model such as related each member, structure, the each several part and annexation, each several part and manipulate method etc., be described in further detail, inventive concept of the present utility model, technical scheme had more complete, accurate and deep understanding to help those skilled in the art.
As shown in Figure 1, a kind of slow wave structure that is used for Ku wave band travelling wave tube, described slow wave structure is a tubulose, described slow wave structure is provided with two cavitys 5, described cavity 5 is divided into input section 1 with slow wave structure, interlude 2 and deferent segment 3, described cavity 5 both sides are provided with attenuator, and the inside of the inside of described input section 1, deferent segment 2 and the inside of interlude 3 all are provided with helix.
Described input section 1 is by the input piece housing, and input section spiral line 6 is imported section attenuator 7 and formed, and described input section spiral line 6 is connected with the input piece housing by supporting rod 4, and the described section attenuator 7 of importing is arranged on the end of input section near cavity 5.
Described interlude 2 is by the interlude housing, interlude helix 8, and interlude attenuator 9 is formed, and described interlude helix 8 is connected with the interlude housing by supporting rod 4, and described interlude attenuator 9 is arranged on the two ends of interlude 2.
Described deferent segment 3 is by the deferent segment housing, deferent segment helix 10, and deferent segment attenuator 11 is formed, and described deferent segment helix 10 is connected with the deferent segment housing by supporting rod 4, and described deferent segment attenuator 11 is arranged on an end of the close cavity 5 of deferent segment.
Described attenuator is the carbon film attenuator.
The length of described interlude 2 is greater than the length of deferent segment 3, and the length of deferent segment 3 is greater than the length of input section 1.
When slow wave structure is installed, adopt cold mode of suppressing that supporting rod 4 and helix are packed in the slow wave structure on the technology earlier, adopt hot compression to handle again; Described supporting rod 4 is the supporting rod of three circles, and the supporting rod of described three circles evenly distributes along the slow wave structure inwall of tubulose.Described helix adopts copper coating to handle with high-purity vacuum melting molybdenum filament of 0.28mm * 0.2mm on the technology.Described input piece housing, interlude housing and deferent segment housing adopt the Monel material to make, the input piece housing, and the internal diameter of interlude housing and deferent segment housing is 1.65mm.
Input section spiral line 6 length are 57mm, and interlude helix 8 length are 78mm; Deferent segment helix 10 length are 65mm, it is 0.86mm by 1.05mm through one 0.98 pitch and one 0.91 pitch saltus step that described deferent segment helix 10 adopts the negative saltus step mode in three rank earlier, and adopting two rank positive transition modes afterwards again is 1.0mm by 0.86mm through the pitch saltus step of a 0.91mm.
Claims (6)
1. slow wave structure that is used for Ku wave band travelling wave tube, it is characterized in that: described slow wave structure is a tubulose, described slow wave structure is provided with two cavitys (5), described cavity (5) is divided into input section (1) with slow wave structure, interlude (2) and deferent segment (3), described cavity (5) both sides are provided with attenuator, and the inside of the inside of described input section (1), deferent segment (2) and the inside of interlude (3) all are provided with helix.
2. a kind of slow wave structure that is used for Ku wave band travelling wave tube according to claim 1, it is characterized in that: described input section (1) is by the input piece housing, input section spiral line (6), input section attenuator (7) is formed, described input section spiral line (6) is connected with the input piece housing by supporting rod (4), and described input section attenuator (7) is arranged on the end of input section near cavity (5).
3. a kind of slow wave structure that is used for Ku wave band travelling wave tube according to claim 1 and 2, it is characterized in that: described interlude (2) is by the interlude housing, interlude helix (8), interlude attenuator (9) is formed, described interlude helix (8) is connected with the interlude housing by supporting rod (4), and described interlude attenuator (9) is arranged on the two ends of interlude (2).
4. a kind of slow wave structure that is used for Ku wave band travelling wave tube according to claim 1 and 2, it is characterized in that: described deferent segment (3) is by the deferent segment housing, deferent segment helix (10), deferent segment attenuator (11) is formed, described deferent segment helix (10) is connected with the deferent segment housing by supporting rod (4), and described deferent segment attenuator (11) is arranged on the end of deferent segment near cavity (5).
5. a kind of slow wave structure that is used for Ku wave band travelling wave tube according to claim 1 is characterized in that: described attenuator is the carbon film attenuator.
6. a kind of slow wave structure that is used for Ku wave band travelling wave tube according to claim 1 is characterized in that: the length of described interlude (2) is greater than the length of deferent segment (3), and the length of deferent segment (3) is greater than the length of input section (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201361390U CN202025709U (en) | 2011-05-03 | 2011-05-03 | Slow wave structure used for Ku waveband traveling-wave tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201361390U CN202025709U (en) | 2011-05-03 | 2011-05-03 | Slow wave structure used for Ku waveband traveling-wave tube |
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| Publication Number | Publication Date |
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| CN202025709U true CN202025709U (en) | 2011-11-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2011201361390U Expired - Fee Related CN202025709U (en) | 2011-05-03 | 2011-05-03 | Slow wave structure used for Ku waveband traveling-wave tube |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105070623A (en) * | 2015-07-27 | 2015-11-18 | 电子科技大学 | Efficient broadband helix traveling wave tube |
-
2011
- 2011-05-03 CN CN2011201361390U patent/CN202025709U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105070623A (en) * | 2015-07-27 | 2015-11-18 | 电子科技大学 | Efficient broadband helix traveling wave tube |
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| 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: 20111102 Termination date: 20160503 |
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| CF01 | Termination of patent right due to non-payment of annual fee |