CN108682605B - coupled two-cavity high-power microwave generator and use method thereof - Google Patents
coupled two-cavity high-power microwave generator and use method thereof Download PDFInfo
- Publication number
- CN108682605B CN108682605B CN201810486649.7A CN201810486649A CN108682605B CN 108682605 B CN108682605 B CN 108682605B CN 201810486649 A CN201810486649 A CN 201810486649A CN 108682605 B CN108682605 B CN 108682605B
- Authority
- CN
- China
- Prior art keywords
- cavity
- coupling
- transduction
- coupled
- modulation
- 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.)
- Active
Links
Images
Classifications
-
- 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
- H01J23/02—Electrodes; Magnetic control means; Screens
- H01J23/10—Magnet systems for directing or deflecting the discharge along a desired path, e.g. a spiral path
-
- 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
- H01J23/02—Electrodes; Magnetic control means; Screens
- H01J23/04—Cathodes
Landscapes
- Optical Modulation, Optical Deflection, Nonlinear Optics, Optical Demodulation, Optical Logic Elements (AREA)
- Particle Accelerators (AREA)
Abstract
The invention relates to coupled two-cavity high-power microwave generator and a use method thereof, belonging to the technical field of relativistic electric vacuum microwave devices, wherein the microwave generator comprises a cathode, an anode, a magnetic field guiding generator and an output conductor, wherein a cavity is arranged in the anode, the cathode is used for emitting electron beams, the electron beams are transmitted along the cavity to form an electron beam channel, a modulation cavity, a coupling mechanism and a transduction cavity are sequentially arranged in the cavity along the transmission direction of the electron beams, and the coupling mechanism comprises a coupling cavity and a plurality of supporting sheets positioned in the coupling cavity.
Description
Technical Field
The invention belongs to the technical field of relativistic electric vacuum microwave devices, and particularly relates to coupled two-cavity high-power microwave generators and a using method thereof.
Background
The traditional and conventional radar electronic countermeasure technology and weapon equipment thereof are developed for decades and are relatively mature, and both the attack and defense have respective countermeasure and measures under fixed conditions.
The high-power microwave is taken as novel electromagnetic interference means, mainly aiming at various targets such as electronic reconnaissance, communication, synthetic aperture radar and the like to interfere and attack, and can degrade or damage microwave sensors, such as a measurement and control receiver (USB, UCB), a reconnaissance receiver of electronic reconnaissance and a synthetic aperture radar receiver of imaging, so that the microwave sensors lose ground monitoring, and the reconnaissance and imaging lose corresponding reconnaissance combat effectiveness.
Disclosure of Invention
Aiming at various defects of the prior art, the inventor optimizes coupled two-cavity high-power microwave generators which are simple in structure and easy to realize single-mode operation and a using method thereof in long-term practice.
In order to achieve the purpose, the invention provides the following technical scheme:
A coupled two-cavity high-power microwave generator comprises a cathode, an anode, a magnetic field generator and an output conductor, wherein the anode is in a symmetrical cylindrical shape and made of metal material, a vacuum cavity is arranged in the anode, the cathode is used for emitting electron beams and is positioned at the end of the cavity, the electron beams are transmitted along the cavity to form an electron beam channel, the output conductor is positioned at the other end of the cavity, and the magnetic field generator is positioned at the periphery of the anode;
along the transmission direction of the electron beam, a modulation cavity, a coupling mechanism and a transduction cavity are sequentially arranged in the cavity, the coupling mechanism comprises a coupling cavity and a plurality of supporting sheets positioned in the coupling cavity, the modulation cavity, the coupling cavity and the transduction cavity are communicated and coaxial, the radiuses of the modulation cavity, the coupling cavity and the transduction cavity are larger than the radius of the cavity, the modulation cavity and the transduction cavity are cylindrical, the coupling cavity is annular, and the supporting sheets are uniformly distributed along the circumferential direction of the coupling cavity;
the output conductor comprises an inner conductor and an outer conductor which are coaxial with the cavity, the inner conductor is arranged right opposite to the cathode, the outer conductor is sleeved on the periphery of the inner conductor, and an annular microwave output channel is formed between the outer conductor and the inner conductor to output microwaves.
And , the length of the coupling cavity is 0.7-1.1 times of the output microwave wavelength along the length direction of the cavity.
And , the length of the support piece is 0.8 times of the length of the coupling cavity.
Further , the coupling mechanism is completely transparent to microwaves of the operating mode frequency, is cut off for microwaves having a frequency lower than the operating mode frequency, and is mismatched for microwaves having a frequency higher than the operating mode frequency.
, the number of the supporting pieces is n, the wavelength of the microwave of the working mode is lambda, and the inner diameter of the outer conductor is R1The radius of the inner conductor is R2Then, then
And , arranging a circular ring bulge on the cathode, wherein the circular ring bulge is just opposite to the microwave output channel.
, the end of the outer conductor abuts the side wall of the transduction cavity and the end of the inner conductor is located inside the transduction cavity.
, the vacuum degree of the cavity is not more than 10-2Pa。
In addition, the invention also provides an application method of the coupled two-cavity high-power microwave generator, which comprises the following steps:
s1: the cathode emits an electron beam, the guiding magnetic field generator generates a guiding magnetic field, the electron beam firstly passes through the modulation cavity under the action of the guiding magnetic field to realize the speed modulation of the electron beam, and the modulated electron beam realizes the conversion from electron energy to microwave energy in the transduction cavity;
s2: a small part of microwave energy in the transduction cavity is coupled to the modulation cavity through the coupling mechanism, the speed modulation of the modulation cavity on electron beams is enhanced, and meanwhile, most of microwave energy in the transduction cavity is output through the microwave output channel, namely high-power microwaves are obtained.
The invention has the beneficial effects that:
the coupling mechanism is additionally arranged between the modulation cavity and the transduction cavity, and meanwhile, the plurality of supporting pieces are arranged in the coupling mechanism, so that the coupling between the modulation cavity and the transduction cavity is realized, the mode control of the high-power microwave generator is realized by forming the coaxial transmission line by the plurality of supporting pieces, the high-power microwave generator is enabled to run in a single mode under the condition that the working mode is controllable, the structure is simple, and the operation is easy.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
fig. 2 is a side view of the coupling mechanism.
In the drawings: 1-cathode, 2-anode, 3-leading magnetic field generator, 4-cavity, 5-modulation cavity, 6-transduction cavity, 7-coupling cavity, 8-support sheet, 9-electron beam channel, 10-inner conductor, 11-outer conductor, 12-microwave output channel, 13-circular bulge and 14-baffle.
Detailed Description
In order to make the technical solutions of the present invention better understood, the following description of the technical solutions of the present invention with reference to the accompanying drawings of the present invention is made clearly and completely, and other similar embodiments obtained by a person of ordinary skill in the art without any creative effort based on the embodiments in the present application shall fall within the protection scope of the present application. In addition, directional terms such as "upper", "lower", "left", "right", etc. in the following embodiments are directions with reference to the drawings only, and thus, the directional terms are used for illustrating the present invention and not for limiting the present invention.
Example :
referring to fig. 1, coupled two-cavity high-power microwave generator comprises a cathode 1, an anode 2, a magnetic field guiding generator 3 and an output conductor, wherein the anode 2 is a symmetrical cylinder made of metal material and provided with a cavity 4 in vacuum state inside, preferably, the vacuum degree of the cavity 4 is not more than 10-2Pa。
The cathode 1 is used for emitting an electron beam and is positioned at the end of the cavity 4, the anode 2 is used for receiving the electron beam, the microwave generator is driven by a pulse power source, the output conductor is positioned at the other end of the cavity, meanwhile, the magnetic field generator 3 is positioned at the periphery of the anode 2 to generate a guide magnetic field for guiding the transmission of the electron beam, the electron beam forms an electron beam channel 9 in the transmission process along the cavity 4, and the radius of the electron beam channel 9 is smaller than the microwave cutoff radius of the working mode.
Along the direction of transmission of electron beam, be equipped with modulation chamber 5, coupling mechanism and transduction chamber 6 in proper order in the cavity 4, simultaneously, coupling mechanism includes coupling chamber 7 and a plurality of backing sheets 8 that are located coupling chamber 7, modulation chamber 5, coupling chamber 7 and transduction chamber 6 are linked together and coaxial, and the radius of three all is greater than cavity 4 radius, in addition, modulation chamber 5 and transduction chamber 6 are all established to cylindricly, coupling chamber 7 establishes to the ring form, that is to say, modulation chamber 5 and transduction chamber 6 all communicate with cavity 4, and do not communicate between coupling chamber 7 and the cavity 4, and the both ends of coupling chamber 7 communicate with modulation chamber 5, transduction chamber 6 respectively, simultaneously, leave annular separation blade 14 between coupling chamber 7 and the cavity 4, the material of separation blade 14 is the same with the material of positive pole 2. In addition, in order to realize the synchronous relation between the electrons and the microwaves, the length of the coupling cavity 7 is 0.7-1.1 times of the wavelength of the output microwaves along the length direction of the cavity 4, and meanwhile, in order to realize the control of the working mode of the coupling mechanism, the length of the supporting piece 8 is 0.8 times of the length of the coupling cavity 7.
The output conductor comprises an inner conductor 10 and an outer conductor 11 which are coaxial with the cavity 4, the inner conductor 10 is arranged right opposite to the cathode 1, the outer conductor 11 is sleeved on the periphery of the inner conductor 10, and an annular microwave output channel 12 is formed between the outer conductor and the inner conductor to output microwaves, in addition, a circular ring bulge 13 is arranged on the cathode 1, the circular ring bulge 13 is arranged right opposite to the microwave output channel 12, the end of the outer conductor 11 is abutted against the side wall of the transduction cavity 6, and the end of the inner conductor 10 is positioned inside the transduction cavity 6.
When the high-power microwave generator is used specifically, the cathode 1 emits electron beams, the guiding magnetic field generator 3 generates a guiding magnetic field, the electron beams firstly pass through the modulation cavity 5 under the action of the guiding magnetic field to realize the speed modulation of the electron beams, the modulated electron beams are fully gathered and realize the conversion from electron energy to microwave energy in the transduction cavity 6, a small part of microwave energy in the transduction cavity 6 is coupled to the modulation cavity 5 through a coupling mechanism to enhance the speed modulation of the modulation cavity 5 on the electron beams, and meanwhile, most of the microwave energy in the transduction cavity 6 is output through the microwave output channel 12, and then high-power microwaves are obtained.
The coupling mechanism is completely transparent, i.e. transparent and lossless, to microwaves of the operating mode frequency, is cut off for microwaves of a frequency lower than the operating mode frequency, and is mismatched for microwaves of a frequency higher than the operating mode frequencyIn (1). Referring to fig. 2, a plurality of support pieces 8 are uniformly distributed in the circumferential direction of the coupling cavity 7. Meanwhile, the number of the support pieces 8 is n, the microwave wavelength of the working mode is λ, and the inner diameter of the outer conductor 11 is R1The radius of the inner conductor 10 is R2Then, then
That is, the number of support pieces 8 is determined by the operating mode microwave wavelength.
, the above description is only a preferred embodiment of the present invention, and should not be construed as limiting the scope of the invention, i.e., all equivalent variations and modifications within the scope of the present application should be covered by the present invention.
Claims (8)
1, coupling two-cavity high-power microwave generator, which is characterized by comprising a cathode, an anode, a magnetic field generator and an output conductor, wherein the anode is in a symmetrical cylindrical shape and made of metal materials, a cavity in a vacuum state is arranged in the anode, the cathode is used for emitting electron beams and is positioned at the end of the cavity, the electron beams are transmitted along the cavity to form an electron beam channel, the output conductor is positioned at the other end of the cavity, and the magnetic field generator is positioned at the periphery of the anode;
along the transmission direction of the electron beam, a modulation cavity, a coupling mechanism and a transduction cavity are sequentially arranged in the cavity, the coupling mechanism comprises a coupling cavity and a plurality of supporting sheets positioned in the coupling cavity, the modulation cavity, the coupling cavity and the transduction cavity are communicated and coaxial, the radiuses of the modulation cavity, the coupling cavity and the transduction cavity are larger than the radius of the cavity, the modulation cavity and the transduction cavity are cylindrical, the coupling cavity is annular, and the supporting sheets are uniformly distributed along the circumferential direction of the coupling cavity;
the output conductor comprises an inner conductor and an outer conductor which are coaxial with the cavity, the inner conductor is arranged opposite to the cathode, the outer conductor is sleeved on the periphery of the inner conductor, and an annular microwave output channel is formed between the outer conductor and the inner conductor to output microwaves;
the number of the supporting pieces is n, and the microwave wavelength of the working modeIs lambda, the inner diameter of the outer conductor is R1The radius of the inner conductor is R2Then, then
2. The kind of coupled two-cavity high power microwave generator of claim 1, wherein the length of the coupling cavity is 0.7-1.1 times the wavelength of the output microwave along the length direction of the cavity.
3. The kind of coupled two-cavity high-power microwave generator of claim 1, wherein the length of the supporting plate is 0.8 times the length of the coupled cavity.
4. The coupled two-cavity high power microwave generator of any of claims 1-3 and , wherein the coupling mechanism is completely transparent to microwaves of the operating mode frequency, is cut off for microwaves of a frequency lower than the operating mode frequency, and is mismatched to microwaves of a frequency higher than the operating mode frequency.
5. The kind of coupled two-cavity high-power microwave generator of claim 4, wherein the cathode has a circular ring protrusion, and the circular ring protrusion is disposed opposite to the microwave output channel.
6. The kind of coupled two-cavity high-power microwave generator of claim 5, wherein the end of the outer conductor abuts against the side wall of the transduction cavity, and the end of the inner conductor is located inside the transduction cavity.
7. The coupled two-cavity high-power microwave generator according to claim 5, wherein the vacuum degree of the cavity is not more than 10-2Pa。
Use of a coupled two-cavity high power microwave generator according to any of claims 1-7 in 8, , comprising the steps of:
s1: the cathode emits an electron beam, the guiding magnetic field generator generates a guiding magnetic field, the electron beam firstly passes through the modulation cavity under the action of the guiding magnetic field to realize the speed modulation of the electron beam, and the modulated electron beam realizes the conversion from electron energy to microwave energy in the transduction cavity;
s2: a small part of microwave energy in the transduction cavity is coupled to the modulation cavity through the coupling mechanism, the speed modulation of the modulation cavity on electron beams is enhanced, and meanwhile, most of microwave energy in the transduction cavity is output through the microwave output channel, namely high-power microwaves are obtained.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810486649.7A CN108682605B (en) | 2018-05-21 | 2018-05-21 | coupled two-cavity high-power microwave generator and use method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810486649.7A CN108682605B (en) | 2018-05-21 | 2018-05-21 | coupled two-cavity high-power microwave generator and use method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108682605A CN108682605A (en) | 2018-10-19 |
| CN108682605B true CN108682605B (en) | 2020-01-31 |
Family
ID=63805131
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810486649.7A Active CN108682605B (en) | 2018-05-21 | 2018-05-21 | coupled two-cavity high-power microwave generator and use method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108682605B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11894208B2 (en) | 2020-11-15 | 2024-02-06 | Elve Inc. | Multi-layer vacuum electron device and method of manufacture |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102208315B (en) * | 2011-04-26 | 2012-11-14 | 中国人民解放军国防科学技术大学 | Compact relativity backward wave oscillator (RBWO) with adjustable low-frequency-range frequency |
| CN105529234B (en) * | 2016-01-19 | 2017-03-15 | 中国人民解放军国防科学技术大学 | A kind of X, Ku wave band is adjustable high-power microwave source |
| CN205723436U (en) * | 2016-04-14 | 2016-11-23 | 中国工程物理研究院应用电子学研究所 | A kind of L-band, the controlled high-power pulsed ion beams of Ku waveband double-frequency |
| CN205881867U (en) * | 2016-07-04 | 2017-01-11 | 中国工程物理研究院应用电子学研究所 | High -efficient heavy microwave device of downfield high power frequently |
| CN107591305B (en) * | 2017-08-29 | 2019-09-17 | 电子科技大学 | A kind of compact oscillator based on cold cathode |
| CN107591304B (en) * | 2017-08-29 | 2019-07-23 | 电子科技大学 | A kind of cold cathode compact amplifier |
-
2018
- 2018-05-21 CN CN201810486649.7A patent/CN108682605B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN108682605A (en) | 2018-10-19 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105280462B (en) | Relativistic backward wave oscillator for generating linearly polarized TE11 mode directly | |
| CN104409302B (en) | X-band crosses mould relativistic klystron amplifier | |
| CN105869972B (en) | One kind is greatly across the controllable Relativistic backward-wave oscillator of waveband double-frequency | |
| CN205723436U (en) | A kind of L-band, the controlled high-power pulsed ion beams of Ku waveband double-frequency | |
| CN109616393B (en) | L-band low-guiding magnetic field compact high-power microwave device | |
| CN109524283B (en) | Compact high-power microwave device with dual-waveband low-guiding magnetic field | |
| CN108682605B (en) | coupled two-cavity high-power microwave generator and use method thereof | |
| CN108807115B (en) | A kind of end total reflection high-power pulsed ion beams | |
| CN110379691A (en) | A kind of compact high efficient rate axial direction output TE51Mode relativistic magnetron | |
| CN105489460A (en) | K-waveband coaxial relativistic backward wave oscillator | |
| CN104835706B (en) | Relativistic klystron amplifier output cavity | |
| CN104134598A (en) | Multi-electron-beam inductive output tube | |
| CN206532874U (en) | A kind of electromagnetic impulse radiation device of pulse laser excitation | |
| CN110718431B (en) | L-band three-cavity high-power microwave device | |
| CN108648979B (en) | Four-cavity high-power microwave amplifier and use method thereof | |
| CN109585242B (en) | Dual-frequency high-power microwave generator | |
| CN105491702A (en) | Antenna for microwave heating equipment and microwave oven | |
| CN103606505A (en) | Cold cathode electronic gun modulated by microwave | |
| CN105430786A (en) | Microwave heating equipment | |
| CN102054646B (en) | A kind of eight chamber low-power magnetron and design procedures thereof | |
| CN105554932A (en) | Antenna for microwave heating device and microwave heating device | |
| CN105140087A (en) | C-waveband low-voltage superradiation generation device | |
| CN204632717U (en) | A kind of relativistic klystron amplifier output cavity | |
| CN205177765U (en) | No magnetic field high power microwave device of radial inside transmission of high current electron beam | |
| CN109616394B (en) | S-band low-guiding magnetic field compact high-power microwave device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |