CN110021510A - Coaxial manetron cavity resonator structure and preparation method thereof - Google Patents
Coaxial manetron cavity resonator structure and preparation method thereof Download PDFInfo
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- CN110021510A CN110021510A CN201910197527.0A CN201910197527A CN110021510A CN 110021510 A CN110021510 A CN 110021510A CN 201910197527 A CN201910197527 A CN 201910197527A CN 110021510 A CN110021510 A CN 110021510A
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- exocoel
- cavity
- resonator structure
- coaxial
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J23/00—Details of transit-time tubes of the types covered by group H01J25/00
- H01J23/16—Circuit elements, having distributed capacitance and inductance, structurally associated with the tube and interacting with the discharge
- H01J23/18—Resonators
- H01J23/20—Cavity resonators; Adjustment or tuning thereof
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J9/00—Apparatus or processes specially adapted for the manufacture, installation, removal, maintenance of electric discharge tubes, discharge lamps, or parts thereof; Recovery of material from discharge tubes or lamps
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Control Of Motors That Do Not Use Commutators (AREA)
Abstract
The invention discloses coaxial manetron cavity resonator structures, comprising: inner cavity, exocoel and tuning disk；The inner cavity, the exocoel and cathode are coaxially disposed, and are provided with coupling slot on the inner cavity and are connected with the exocoel, and the end of the exocoel is provided with tuning disk and is tuned to signal frequency, output window are provided on the exocoel, for exporting microwave signal.The coaxial manetron cavity resonator structure overcomes magnetron frequency stability in the prior art and anti-interference ability relatively weak, the lesser problem of tuning range.
Description
Technical field
The present invention relates to microwave vacuum devices fields, and in particular, to a kind of coaxial manetron cavity resonator structure and its system
Make method.
Background technique
In vacuum device field, magnetron is applied to radar as microwave signal source and guided missile communicates.Magnetron is true
Empty electronic device is general to require to manage interior vacuum degree 10-6~10-7pa.Magnetron is generally operational in pulse type as signal source
State, magnetron are crossed field oscillating devices, and output power is high-efficient, but frequency stability and anti-interference ability are relatively weak,
Tuning range is smaller.
Therefore it provides a kind of frequency stability that can effectively improve magnetron in use and anti-interference energy
Power increases the problem of coaxial manetron cavity resonator structure of tuning range and preparation method thereof is urgent need to resolve of the present invention.
Summary of the invention
In view of the above technical problems, the purpose of the present invention is overcome magnetron frequency stability in the prior art and resist dry
It is relatively weak to disturb ability, the lesser problem of tuning range, so that provide a kind of can effectively improve magnetic control in use
The frequency stability and anti-interference ability of pipe, increase coaxial manetron cavity resonator structure of tuning range and preparation method thereof.
To achieve the goals above, the present invention provides a kind of coaxial manetron cavity resonator structure, the coaxial manetrons
Cavity resonator structure includes: inner cavity, exocoel and tuning disk；The inner cavity, the exocoel and cathode are coaxially disposed, on the inner cavity
It is provided with coupling slot to be connected with the exocoel, the end of the exocoel is provided with tuning disk and is tuned signal frequency, described
Output window is provided on exocoel, for exporting microwave signal.
Preferably, the coaxial manetron cavity resonator structure further include: the first magnetic pole piece, the second magnetic pole piece, first end
Cover board and the second end cover board；It is brazed after first magnetic pole piece and the first end cover board sealed with brazing with the tuning disk
The sealing composition first component；It is formed after the inner cavity and second magnetic pole piece soldering with the second end cover board sealed with brazing
Second component, the first component and the second component are tightly connected composition resonant cavity with the exocoel argon arc welding.
Preferably, the intra resonant cavity is set as vacuum.
Preferably, the vacuum degree of the intra resonant cavity reaches 10-6~10-7pa。
Preferably, the tuning disk it is described it is outer it is intracavitary can slidable adjustment along vertical direction, to change the exocoel
Size；And the tuning disk is connected by sylphon seal.
Preferably, the lead of the output window and magnetron is all ceramics or glass material.
The present invention also provides a kind of production sides of coaxial manetron resonant cavity according to the claims 1-8
Method；The described method includes:
Step 1, by first magnetic pole piece and the first end cover board sealed with brazing；
Step 2, by the component after step 1 welded seal again with the tuning disk sealed with brazing；
Step 3, the inner cavity and second magnetic pole piece are brazed；
Step 4, by step 3 welding after component again with the second end cover board sealed with brazing；
Step 5, the component after step 2 welding and the component after step 4 welding are sealed with the exocoel argon arc welding and is connected
Connect composition resonant cavity.
According to above content, coaxial manetron cavity resonator structure provided by the invention overcomes magnetron frequency in the prior art
Rate stability and anti-interference ability are relatively weak, the lesser problem of tuning range, and peripheral coaxial placement one in resonant cavity is outer
Chamber, intracavity sidewall, which opens coupling slot and is connected with exocoel, constitutes Compound Cavity, increases the Q value of resonator system, improves frequency stability and anti-
The tuning of interference performance, frequency is realized by the tuning disk placed in exocoel, can obtain wider tuning range, and tuning disk is logical
Cross the dynamic connection of bellows structure and end.By changing the height of the position change exocoel of tuning disk, to change resonator system
Eigenfrequency, realize the precision tuning of microwave signal.It is vacuum environment inside coaxial manetron, it is general to require vacuum degree in pipe
Reach 10-6~10-7pa.Tuning disk position can be moved axially along resonant cavity, it is ensured that vacuum dynamic seal.
Other features and advantages of the present invention will the following detailed description will be given in the detailed implementation section.
Detailed description of the invention
The drawings are intended to provide a further understanding of the invention, and constitutes part of specification, with following tool
Body embodiment is used to explain the present invention together, but is not construed as limiting the invention.In the accompanying drawings:
Fig. 1 is the structural representation of the coaxial manetron cavity resonator structure provided in a kind of preferred embodiment of the invention
Figure；
Fig. 2 is the internal structure of the coaxial manetron cavity resonator structure provided in a kind of preferred embodiment of the invention
Schematic diagram.
Description of symbols
1 cathode, 2 inner cavity
3 exocoels 4 tune disk
5 output window, 6 first magnetic pole piece
7 second magnetic pole piece, 8 first end cover board
9 the second end cover board, 10 coupling slot
Specific embodiment
Below in conjunction with attached drawing, detailed description of the preferred embodiments.It should be understood that this place is retouched
The specific embodiment stated is merely to illustrate and explain the present invention, and is not intended to restrict the invention.
In the present invention, in the absence of explanation to the contrary, the noun of locality that " upper and lower, inside and outside " etc. is included in the term
Only represent orientation of the term under normal service condition, or be those skilled in the art understand that be commonly called as, and be not construed as pair
The limitation of the term.
As depicted in figs. 1 and 2, the present invention provides a kind of coaxial manetron cavity resonator structure, the coaxial manetron is humorous
Resonator structure includes: inner cavity 2, exocoel 3 and tuning disk 4；The inner cavity 2, the exocoel 3 and cathode 1 are coaxially disposed, described interior
It is provided with coupling slot 10 on chamber 2 to be connected with the exocoel 3, the end of the exocoel 3 is provided with tuning disk 4 and carries out signal frequency
It tunes, output window 5 is provided on the exocoel 3, for exporting microwave signal；
According to above content, coaxial manetron cavity resonator structure provided by the invention overcomes magnetron frequency in the prior art
Rate stability and anti-interference ability are relatively weak, the lesser problem of tuning range, and peripheral coaxial placement one in resonant cavity is outer
Chamber, intracavity sidewall, which opens coupling slot and is connected with exocoel, constitutes Compound Cavity, increases the Q value of resonator system, improves frequency stability and anti-
The tuning of interference performance, frequency is realized by the tuning disk placed in exocoel, can obtain wider tuning range, and tuning disk is logical
Cross the dynamic connection of bellows structure and end.By changing the height of the position change exocoel of tuning disk, to change resonator system
Eigenfrequency, realize the precision tuning of microwave signal.It is vacuum environment inside coaxial manetron, it is general to require vacuum degree in pipe
Reach 10-6~10-7pa.Tuning disk position can be moved axially along resonant cavity, it is ensured that vacuum dynamic seal.
In a preferred embodiment of the invention, the coaxial manetron cavity resonator structure further include: the first magnetic
Pole shoe 6, the second magnetic pole piece 7, first end cover board 8 and the second end cover board 9；First magnetic pole piece 6 and the first end
The first component is formed with 4 sealed with brazing of tuning disk after 8 sealed with brazing of cover board；The inner cavity 2 and 7 pricker of the second magnetic pole piece
Postwelding and 9 sealed with brazing of the second end cover board form second component, and the first component and the second component are and institute
It states 3 argon arc welding of exocoel and is tightly connected composition resonant cavity.
The design of inner cavity both ends has magnetic pole piece, and the covering of interaction space axial direction uniform magnetic field, interaction are realized by magnetic focusing
It is the region that energy exchange is carried out between cathode and inner cavity with area.
In a preferred embodiment of the invention, the intra resonant cavity is set as vacuum.
In a preferred embodiment of the invention, the vacuum degree of the intra resonant cavity reaches 10-6~10-7pa。
In a preferred embodiment of the invention, the tuning disk 4 can be along vertical side in the exocoel 3
To slidable adjustment, to change the size of the exocoel 3；And the tuning disk 4 is connected by sylphon seal.Tuning disk passes through wave
The connection of the line seal of tube guarantees to realize that position is adjustable while vacuum environment, to change the frequency of microwave signal caused by magnetron
Rate, tuning disk can be driven by mechanical transmission structure by outer motor, realize the quick variation of signal frequency；According to signal frequency
Rate, output work, anode voltage and anode current select the resonant cavity of different structure size；By the position for accurately controlling tuning disk
It sets, the microwave signal output of fixed frequency may be implemented.
For the ease of the heat dissipation of tube body, guarantee that device normally works, in a preferred embodiment of the invention,
The material of 3 inner wall of exocoel is oxygen-free copper.Cooling water channel auxiliary heat dissipation can be designed on exocoel when necessary.
In a preferred embodiment of the invention, the lead of the output window 5 and magnetron is all ceramics or glass
Glass material.
The present invention also provides a kind of production sides of coaxial manetron resonant cavity according to the claims 1-8
Method；It is characterized in that, which comprises
Step 1, by first magnetic pole piece 6 and 8 sealed with brazing of first end cover board；
Step 2, by the component after step 1 welded seal again with 4 sealed with brazing of tuning disk；
Step 3, the inner cavity 2 and second magnetic pole piece 7 are brazed；
Step 4, by step 3 welding after component again with 9 sealed with brazing of the second end cover board；
Step 5, the component after step 2 welding and the component after step 4 welding are sealed with 3 argon arc welding of exocoel and is connected
Connect composition resonant cavity.
It is described the prefered embodiments of the present invention in detail above in conjunction with attached drawing, still, the present invention is not limited to above-mentioned realities
The detail in mode is applied, within the scope of the technical concept of the present invention, a variety of letters can be carried out to technical solution of the present invention
Monotropic type, these simple variants all belong to the scope of protection of the present invention.
It is further to note that specific technical features described in the above specific embodiments, in not lance
In the case where shield, can be combined in any appropriate way, in order to avoid unnecessary repetition, the present invention to it is various can
No further explanation will be given for the combination of energy.
In addition, various embodiments of the present invention can be combined randomly, as long as it is without prejudice to originally
The thought of invention, it should also be regarded as the disclosure of the present invention.
Claims (7)
1. a kind of coaxial manetron cavity resonator structure, which is characterized in that the coaxial manetron cavity resonator structure includes: inner cavity
(2), exocoel (3) and tuning disk (4)；The inner cavity (2), the exocoel (3) and cathode (1) coaxial arrangement, the inner cavity (2)
On be provided with coupling slot (10) and be connected with the exocoel (3), the end of the exocoel (3) is provided with tuning disk (4) to signal frequency
Rate is tuned, and output window (5) is provided on the exocoel (3), for exporting microwave signal.
2. coaxial manetron cavity resonator structure according to claim 1, which is characterized in that the coaxial manetron resonant cavity
Structure further include: the first magnetic pole piece (6), the second magnetic pole piece (7), first end cover board (8) and the second end cover board (9)；It is described
First is formed with tuning disk (4) sealed with brazing after first magnetic pole piece (6) and the first end cover board (8) sealed with brazing
Part；Second is formed with the second end cover board (9) sealed with brazing after the inner cavity (2) and second magnetic pole piece (7) soldering
Component, the first component and the second component are tightly connected composition resonant cavity with the exocoel (3) argon arc welding.
3. coaxial manetron cavity resonator structure according to claim 2, which is characterized in that the intra resonant cavity is set as
Vacuum.
4. coaxial manetron cavity resonator structure according to claim 3, which is characterized in that the vacuum of the intra resonant cavity
Degree reaches 10-6~10-7pa。
5. coaxial manetron cavity resonator structure according to claim 2, which is characterized in that the tuning disk (4) is described
In exocoel (3) can slidable adjustment along vertical direction, to change the size of the exocoel (3)；And the tuning disk (4) passes through
Sylphon seal connection.
6. coaxial manetron cavity resonator structure according to claim 1, which is characterized in that the output window (5) and magnetic control
The lead of pipe is all ceramics or glass material.
7. a kind of production method of the coaxial manetron resonant cavity according to the claims 1-6；It is characterized in that, described
Method includes:
Step 1, by first magnetic pole piece (6) and the first end cover board (8) sealed with brazing；
Step 2, by the component after step 1 welded seal again with tuning disk (4) sealed with brazing；
Step 3, the inner cavity (2) and second magnetic pole piece (7) are brazed；
Step 4, by step 3 welding after component again with the second end cover board (9) sealed with brazing；
Step 5, the component after step 2 welding and the component after step 4 welding are tightly connected with the exocoel (3) argon arc welding
Form resonant cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910197527.0A CN110021510A (en) | 2019-03-15 | 2019-03-15 | Coaxial manetron cavity resonator structure and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910197527.0A CN110021510A (en) | 2019-03-15 | 2019-03-15 | Coaxial manetron cavity resonator structure and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110021510A true CN110021510A (en) | 2019-07-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910197527.0A Pending CN110021510A (en) | 2019-03-15 | 2019-03-15 | Coaxial manetron cavity resonator structure and preparation method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110931332A (en) * | 2019-12-10 | 2020-03-27 | 安徽华东光电技术研究所有限公司 | Vacuum microwave oscillation source |
| CN111900066A (en) * | 2020-07-15 | 2020-11-06 | 清华大学 | Magnetron |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3984725A (en) * | 1975-05-19 | 1976-10-05 | Varian Associates | Permanent magnet structure for crossed-field tubes |
| US4053850A (en) * | 1976-09-23 | 1977-10-11 | Varian Associates, Inc. | Magnetron slot mode absorber |
| JPH10269953A (en) * | 1997-03-27 | 1998-10-09 | New Japan Radio Co Ltd | Coaxial magnetron |
| CN103915303A (en) * | 2013-01-07 | 2014-07-09 | 新日本无线株式会社 | Coaxial magnetron |
| JP2014165032A (en) * | 2013-02-26 | 2014-09-08 | New Japan Radio Co Ltd | Coaxial magnetron |
| JP2016152069A (en) * | 2015-02-16 | 2016-08-22 | 新日本無線株式会社 | Coaxial magnetron |
| JP2017199571A (en) * | 2016-04-27 | 2017-11-02 | 新日本無線株式会社 | Coaxial magnetron |
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2019
- 2019-03-15 CN CN201910197527.0A patent/CN110021510A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3984725A (en) * | 1975-05-19 | 1976-10-05 | Varian Associates | Permanent magnet structure for crossed-field tubes |
| US4053850A (en) * | 1976-09-23 | 1977-10-11 | Varian Associates, Inc. | Magnetron slot mode absorber |
| JPH10269953A (en) * | 1997-03-27 | 1998-10-09 | New Japan Radio Co Ltd | Coaxial magnetron |
| CN103915303A (en) * | 2013-01-07 | 2014-07-09 | 新日本无线株式会社 | Coaxial magnetron |
| JP2014165032A (en) * | 2013-02-26 | 2014-09-08 | New Japan Radio Co Ltd | Coaxial magnetron |
| JP2016152069A (en) * | 2015-02-16 | 2016-08-22 | 新日本無線株式会社 | Coaxial magnetron |
| JP2017199571A (en) * | 2016-04-27 | 2017-11-02 | 新日本無線株式会社 | Coaxial magnetron |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110931332A (en) * | 2019-12-10 | 2020-03-27 | 安徽华东光电技术研究所有限公司 | Vacuum microwave oscillation source |
| CN110931332B (en) * | 2019-12-10 | 2022-06-28 | 安徽华东光电技术研究所有限公司 | Vacuum microwave oscillation source |
| CN111900066A (en) * | 2020-07-15 | 2020-11-06 | 清华大学 | Magnetron |
| CN111900066B (en) * | 2020-07-15 | 2024-06-04 | 清华大学 | Magnetron with a magnetron body having a plurality of magnetron electrodes |
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Application publication date: 20190716 |
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