CN205004305U - Coaxial input structure of travelling wave tube high frequency - Google Patents
Coaxial input structure of travelling wave tube high frequency Download PDFInfo
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- CN205004305U CN205004305U CN201520610694.0U CN201520610694U CN205004305U CN 205004305 U CN205004305 U CN 205004305U CN 201520610694 U CN201520610694 U CN 201520610694U CN 205004305 U CN205004305 U CN 205004305U
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- travelling wave
- high frequency
- wave tube
- screw rod
- coaxial input
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- 230000005540 biological transmission Effects 0.000 claims abstract description 39
- 239000000919 ceramic Substances 0.000 claims description 7
- 238000007789 sealing Methods 0.000 claims description 5
- 230000002349 favourable effect Effects 0.000 abstract 1
- 238000000034 method Methods 0.000 description 4
- 230000000903 blocking effect Effects 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000004807 localization Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
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Abstract
The utility model discloses a coaxial input structure of travelling wave tube high frequency, including transmission device and step waveguide (10) that set up in order, the one end of step waveguide (10) is sealed, and the other end is connected with the input slow wave section of travelling wave tube mutually, step waveguide (10) inside cavity forms the lumen, be formed with the through -hole on the lumen wall, transmission device passes through the through -hole intercommunication the lumen, the transmission device outside is still overlapped and is equipped with the pipe box, the pipe box with the pipe wall links to each other and is closed the through -hole. This coaxial input structure of travelling wave tube high frequency's structural strength is high, small, has simplified the input system of transmitter, is favorable to the miniaturization of transmitter.
Description
Technical field
The utility model relates to a kind of travelling wave tube high frequency coaxial input structure.
Background technology
Travelling wave tube, as vacuum microwave power amplifying device, has the advantages such as bandwidth, gain is large, efficiency is high, power output is large, has a wide range of applications, be described as " heart " of weaponry in all kinds of military microwave transmitter.Along with the development of weaponry, to the miniaturization of travelling wave tube and high reliability request also more and more higher.
The input of existing high-power traveling wave tube adopts waveguiding structure usually, then needs to take coaxial transformational structure to connect when complete machine is applied, and then carries out being connected with the source on transmitter connecing coaxial cable.This not only adds the volume and weight of transmitter, and reduce its reliability; Therefore, it is possible to design the coaxial input structure of high-power traveling wave tube that is miniaturized and high reliability to seem particularly important.
Utility model content
The purpose of this utility model is to provide a kind of travelling wave tube high frequency coaxial input structure, and the structural strength of this travelling wave tube high frequency coaxial input structure is high, volume is little, simplifies the input system of transmitter, is conducive to the miniaturization of transmitter.
To achieve these goals, the utility model provides a kind of travelling wave tube high frequency coaxial input structure, comprises the transport sector and step waveguide that arrange in turn, one end sealing of step waveguide, the other end is connected with the input slow wave section of travelling wave tube, and step waveguide inner hollow forms tube chamber;
Wall of the lumen is formed with through hole, and transport sector is communicated with tube chamber by through hole;
Transport sector outside is also arranged with pipe box, and pipe box is connected with tube chamber and closed through hole.
Preferably, transport sector comprises transfer tube and transmission pole, and one end of transmission pole is connected with transfer tube, and the other end is connected with step waveguide; Pipe box comprises the screw rod of sheathed transfer tube and the backstay of sheathed transmission pole, and screw rod and transfer tube cooperation are formed with the first cavity, and transmission pole and backstay cooperation are formed with the second cavity.
Preferably, screw rod is connected with backstay, and is provided with the screw thread matched with sub-miniature A connector in screw rod away from the outer wall of one end of backstay, in backstay away from one end of screw rod and step waveguide affixed.
Preferably, the one end away from transmission pole in transfer tube has breach.
Preferably, step waveguide comprises flat board and the U-shaped structure that has boss, and the outer wall of boss agrees with at least partly mutually with the inwall of U-shaped structure, dull and stereotyped two ends and the upper surface of U-shaped structure affixed; Dull and stereotyped and U-shaped structure is equipped with through hole, and the central shaft of two through holes is arranged to coincidence.
Preferably, travelling wave tube high frequency coaxial input structure also comprises alignment pin, and alignment pin comprises wide end and narrow end, and narrow end is provided with the jack that can match with the other end of transmission pole, and wide end is provided with positioning baffle; Narrow end can pass the through hole on flat board and be connected with transmission pole; Positioning baffle is welded on dull and stereotyped outer surface.
Preferably, step waveguide also comprises chock and seal cover, and chock clogs the space between dull and stereotyped top and U-shaped structure top end, and the top that seal cover lid is located at chock is with the top of blocking of plates and U-shaped structure.
Preferably, one end of transmission pole has step, and step can to extend in the inner chamber of transfer tube and by being welded and fixed; The outer cover of the junction of screw rod and backstay is provided with ceramic ring, and the outer wall of the inwall of ceramic ring and screw rod and backstay is welded and fixed.
Preferably, the other end of backstay is provided with the ledge structure matched with U-shaped structural through hole.
Preferably, the inside of screw rod is provided with dead ring, and the outer wall of dead ring and the inwall of screw rod fit, and transfer tube passes dead ring and the inwall of the outer wall of transfer tube and dead ring fits.
According to technique scheme, transport sector is connected with step waveguide by the utility model, and one end of step waveguide is sealed, the other end is connected with the input slow wave section of travelling wave tube, the high-frequency signal launched of transmitter is from the input input of transport sector and transmit in coaxial channel, then enter step waveguide channels continue transmission finally enter be welded on step waveguide openings end travelling wave tube in.Adopt this structure can reduce the volume of existing travelling wave tube input, reduce the weight of equipment, reduce failure rate and unsteadiness.
Other feature and advantage of the present utility model are described in detail in embodiment part subsequently.
Accompanying drawing explanation
Accompanying drawing is used to provide further understanding of the present utility model, and forms a part for specification, is used from explanation the utility model, but does not form restriction of the present utility model with embodiment one below.In the accompanying drawings:
Fig. 1 is the structural representation according to the travelling wave tube high frequency coaxial input structure in a kind of execution mode of the present utility model;
Fig. 2 is the vertical view after Fig. 1 middle plateform and U-shaped structure are assembled.
Description of reference numerals
1-transfer tube 2-screw rod
3-backstay 4-transmission pole
5-chock 6-seal cover
7-alignment pin 8-dead ring
The waveguide of 9-ceramic ring 10-step
11-dull and stereotyped 12-U type structure
Embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is described in detail.Should be understood that, embodiment described herein, only for instruction and explanation of the utility model, is not limited to the utility model.
In the utility model, when not doing contrary explanation, the nouns of locality be included in term such as " upper and lower, inside and outside " only represents the orientation of this term under normal service condition, or being commonly called as those skilled in the art's understanding, and should not be considered as the restriction to this term.
See Fig. 1, the utility model provides a kind of travelling wave tube high frequency coaxial input structure, comprises the transport sector and step waveguide 10 that arrange in turn, one end sealing of step waveguide 10, the other end is connected with the input slow wave section of travelling wave tube, and step waveguide 10 inner hollow forms tube chamber; Wall of the lumen is formed with through hole, and transport sector is communicated with tube chamber by through hole; Transport sector outside is also arranged with pipe box, and pipe box is connected with tube chamber and closed through hole.
Pass through technique scheme, transport sector is connected with step waveguide 10, and one end of step waveguide 10 is sealed, the other end is connected with the input slow wave section of travelling wave tube, the high-frequency signal launched of transmitter is from the input input of transport sector and transmit in coaxial channel, then enter step waveguide 10 passage continue transmission finally enter be welded on step waveguide 10 openend travelling wave tube in.Adopt this structure can reduce the volume of existing travelling wave tube input, reduce the weight of equipment, reduce failure rate and unsteadiness.
In present embodiment, in order to simplify transport sector, ensure that it can coaxial transmission high-frequency signal, preferably, transport sector comprises transfer tube 1 and transmission pole 4, and one end of transmission pole 4 is connected with transfer tube 1, and the other end is connected with step waveguide 10; Pipe box comprises the screw rod 2 of sheathed transfer tube 1 and the backstay 3 of sheathed transmission pole 4, and screw rod 2 and transfer tube 1 cooperation are formed with the first cavity, and transmission pole 4 and backstay 3 cooperation are formed with the second cavity.Like this, the coaxial transmission effect that when interconnective transfer tube 1 and transmission pole 4 just can realize the input of existing high-power traveling wave tube, coaxial cable plays, substantially reduces the volume used shared by cable.
In order to protect transfer tube 1 and transmission pole 4 in transmitting procedure not by environmental damage; extend its useful life; preferred screw rod 2 is connected with backstay 3; and be provided with the screw thread matched with sub-miniature A connector in screw rod 2 away from the outer wall of one end of backstay, in backstay 3 away from one end of screw rod 2 and step waveguide 10 affixed.
In addition, enter transport sector for ease of the high-frequency signal in sub-miniature A connector, preferably, in transfer tube 1, away from one end of transmission pole 4, there is breach.
In present embodiment, as shown in Figure 2, for ease of step waveguide 10 assembling and improve both assembling after welded structure stablize, preferably, step waveguide 10 comprises flat board 11 and the U-shaped structure 12 that has boss, and the outer wall of boss agrees with at least partly mutually with the inwall of U-shaped structure 12, the two ends of dull and stereotyped 11 and the upper surface of U-shaped structure 12 affixed; Flat board 11 and U-shaped structure 12 are equipped with through hole, and the central shaft of two through holes is arranged to coincidence.
When assembly welding is carried out in one end of transmission pole 4 and step waveguide 10, its one end need through the through hole in U-shaped structure 12 and to enter step waveguide 10 inner, in order to increase stability during its assembling, good installation localization process need be carried out to its one end, preferably, travelling wave tube high frequency coaxial input structure also comprises alignment pin 7, and alignment pin 7 comprises wide end and narrow end, and narrow end is provided with the jack that can match with the other end of transmission pole 4, wide end is provided with positioning baffle; Narrow end can pass the through hole on dull and stereotyped 11 and be connected with transmission pole 4; Positioning baffle is welded on the outer surface of dull and stereotyped 11.Like this, by the narrow end of alignment pin 7 through the through hole on flat board 11, and be welded and fixed by the positioning baffle of its wide end, now the position of alignment pin 7 is fixed; Transmission pole 4 just can be located by the jack that only its one end gently need be inserted narrow end on alignment pin 7 when installing transmission pole 4 more efficiently and easily.
For improving the sealing property of step waveguide 10 sealed end, prevent the high-frequency signal transmitted from leaking, affect the efficiency of signal transmission, preferred step waveguide 10 also comprises chock 5 and seal cover 6, chock 5 clogs the space between dull and stereotyped 11 tops and U-shaped structure 12 top, and the top that seal cover 6 lid is located at chock 5 is with the top of blocking of plates 11 and U-shaped structure 12.
In addition, because transfer tube 1 and transmission pole 4 are coaxial setting, can remain on same straight line to make the central axis of the two, and junction is fastening both promoting simultaneously, prevent from, because joint misplaces, affecting the normal running of coaxial transmission, preferably, one end of transmission pole 4 has step, and step can to extend in the inner chamber of transfer tube 1 and by being welded and fixed; Screw rod 2 is provided with ceramic ring 9 with the outer cover of the junction of backstay 3, and inwall and the screw rod 2 of ceramic ring 9 are welded and fixed with the outer wall of backstay 3.Similarly, can combine closely after making backstay 3 and step waveguide 10 assembly welding, lift-off seal performance, preferably, the other end of backstay 3 is provided with the ledge structure matched with the through hole in U-shaped structure 12.
In present embodiment, junction both when being connected with sub-miniature A connector to prevent screw rod 2 does not closely cause sealing property during coaxial transmission to be destroyed, affect the normal use operation of whole travelling wave tube high frequency coaxial input structure, preferably, the inside of screw rod 2 is provided with dead ring 8, the outer wall of dead ring 8 and the inwall of screw rod 2 fit, and transfer tube 1 passes dead ring 8 and the inwall of the outer wall of transfer tube 1 and dead ring 8 fits.
Below preferred implementation of the present utility model is described by reference to the accompanying drawings in detail; but; the utility model is not limited to the detail in above-mentioned execution mode; within the scope of technical conceive of the present utility model; can carry out multiple simple variant to the technical solution of the utility model, these simple variant all belong to protection range of the present utility model.
It should be noted that in addition, each concrete technical characteristic described in above-mentioned embodiment, in reconcilable situation, can be combined by any suitable mode, in order to avoid unnecessary repetition, the utility model illustrates no longer separately to various possible compound mode.
In addition, also can carry out combination in any between various different execution mode of the present utility model, as long as it is without prejudice to thought of the present utility model, it should be considered as content disclosed in the utility model equally.
Claims (10)
1. a travelling wave tube high frequency coaxial input structure, it is characterized in that, comprise the transport sector and step waveguide (10) that arrange in turn, one end sealing of described step waveguide (10), the other end is connected with the input slow wave section of travelling wave tube, and described step waveguide (10) inner hollow forms tube chamber;
Described wall of the lumen is formed with through hole, and described transport sector is communicated with described tube chamber by described through hole;
Described transport sector outside is also arranged with pipe box, and described pipe box is connected with described tube chamber and closed described through hole.
2. travelling wave tube high frequency coaxial input structure according to claim 1, it is characterized in that, described transport sector comprises transfer tube (1) and transmission pole (4), one end of described transmission pole (4) is connected with described transfer tube (1), and the other end is connected with described step waveguide (10); Described pipe box comprises the screw rod (2) of sheathed described transfer tube (1) and the backstay (3) of sheathed described transmission pole (4), and described screw rod (2) and described transfer tube (1) cooperation are formed with the first cavity, described transmission pole (4) and described backstay (3) cooperation are formed with the second cavity.
3. travelling wave tube high frequency coaxial input structure according to claim 2, it is characterized in that, described screw rod (2) is connected with described backstay (3), and the outer wall away from one end of described backstay in described screw rod (2) is provided with the screw thread matched with sub-miniature A connector, in described backstay (3) away from one end of described screw rod (2) and described step waveguide (10) affixed.
4. travelling wave tube high frequency coaxial input structure according to claim 2, is characterized in that, has breach in described transfer tube (1) away from one end of described transmission pole (4).
5. travelling wave tube high frequency coaxial input structure according to claim 2, it is characterized in that, described step waveguide (10) comprises flat board (11) and the U-shaped structure (12) that has boss, and the outer wall of described boss agrees with at least partly mutually with the inwall of described U-shaped structure (12), the two ends of described flat board (11) and the upper surface of described U-shaped structure (12) affixed; Described flat board (11) and U-shaped structure (12) are equipped with through hole, and the central shaft of described two through holes is arranged to coincidence.
6. travelling wave tube high frequency coaxial input structure according to claim 5, it is characterized in that, described travelling wave tube high frequency coaxial input structure also comprises alignment pin (7), described alignment pin (7) comprises wide end and narrow end, and narrow end is provided with the jack that can match with the other end of described transmission pole (4), wide end is provided with positioning baffle; Described narrow end can pass the through hole on described flat board (11) and be connected with described transmission pole (4); Described positioning baffle is welded on the outer surface of described flat board (11).
7. travelling wave tube high frequency coaxial input structure according to claim 6, it is characterized in that, described step waveguide (10) also comprises chock (5) and seal cover (6), described chock (5) clogs the space between described flat board (11) top and U-shaped structure (12) top, and described seal cover (6) lid is located at the top of described chock (5) to close the top of described flat board (11) and U-shaped structure (12).
8. travelling wave tube high frequency coaxial input structure according to claim 2, is characterized in that, one end of described transmission pole (4) has step, and described step can to extend in the inner chamber of described transfer tube (1) and by being welded and fixed; Described screw rod (2) is provided with ceramic ring (9) with the outer cover of the junction of backstay (3), and the inwall of described ceramic ring (9) and described screw rod (2) are welded and fixed with the outer wall of backstay (3).
9. travelling wave tube high frequency coaxial input structure according to claim 5, is characterized in that, the other end of described backstay (3) is provided with the ledge structure matched with the through hole on described U-shaped structure (12).
10. travelling wave tube high frequency coaxial input structure according to claim 2, it is characterized in that, the inside of described screw rod (2) is provided with dead ring (8), the outer wall of described dead ring (8) and the inwall of described screw rod (2) fit, described transfer tube (1) through described dead ring (8) and the inwall of the outer wall of described transfer tube (1) and described dead ring (8) fit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520610694.0U CN205004305U (en) | 2015-08-12 | 2015-08-12 | Coaxial input structure of travelling wave tube high frequency |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520610694.0U CN205004305U (en) | 2015-08-12 | 2015-08-12 | Coaxial input structure of travelling wave tube high frequency |
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| Publication Number | Publication Date |
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| CN205004305U true CN205004305U (en) | 2016-01-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520610694.0U Expired - Fee Related CN205004305U (en) | 2015-08-12 | 2015-08-12 | Coaxial input structure of travelling wave tube high frequency |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109727835A (en) * | 2018-12-29 | 2019-05-07 | 中国电子科技集团公司第十二研究所 | Inner conductor, coaxial delivery of energy window and travelling-wave tubes for coaxial delivery of energy window |
-
2015
- 2015-08-12 CN CN201520610694.0U patent/CN205004305U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109727835A (en) * | 2018-12-29 | 2019-05-07 | 中国电子科技集团公司第十二研究所 | Inner conductor, coaxial delivery of energy window and travelling-wave tubes for coaxial delivery of energy window |
| CN109727835B (en) * | 2018-12-29 | 2021-06-29 | 中国电子科技集团公司第十二研究所 | Inner conductor for coaxial energy transmission window, coaxial energy transmission window and traveling wave tube |
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| Date | Code | Title | Description |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160127 |