CN109616393B - L-band low-guiding magnetic field compact high-power microwave device - Google Patents
L-band low-guiding magnetic field compact high-power microwave device Download PDFInfo
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- CN109616393B CN109616393B CN201811500555.7A CN201811500555A CN109616393B CN 109616393 B CN109616393 B CN 109616393B CN 201811500555 A CN201811500555 A CN 201811500555A CN 109616393 B CN109616393 B CN 109616393B
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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
- H01J23/24—Slow-wave structures, e.g. delay systems
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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
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Abstract
The invention provides a compact high-power microwave device with an L-waveband low-guiding magnetic field, which comprises a circular waveguide outer cylinder, a coaxial inner conductor and a cathode; the circular waveguide outer cylinder is sleeved outside the coaxial inner conductor; the cathode is arranged at the front end of the coaxial inner conductor and emits annular electron beams; a microwave reflection cavity, a beam wave interaction cavity, a first microwave extraction cavity and a second microwave extraction cavity are sequentially arranged on the circular waveguide outer cylinder along the transmission direction of the electron beams; the annular electron beam emitted by the cathode can radiate and generate high-power microwaves with the frequency of 1.56GHz after passing through the four-resonant-cavity structure in the primary pulse. The invention greatly reduces the volume and the weight of a high-power microwave source system and can greatly reduce the energy requirement of a magnetic field on a power supply.
Description
Technical Field
The invention relates to the technical field of high-power microwave devices, in particular to a compact high-power microwave device with an L waveband and a low guiding magnetic field.
Background
The high-power microwave generally refers to electromagnetic waves with peak power of more than 100MW and working frequency of 1-300 GHz. With the development of high-power microwave research, higher and higher requirements are put on the overall system efficiency of a high-power microwave source.
The axial O-shaped high-power microwave device becomes a high-power microwave device with wider application due to the easy guidance of electron beams and the changeable combination of the structure. At present, a longer slow wave structure is generally needed for the radiation generation of an axial O-shaped high-power microwave device to achieve the synchronization of the phase velocity of an electron beam and the microwave. In the existing high-power microwave source, the high-impedance device has high beam conversion efficiency, but generally needs a strong guiding magnetic field, and particularly needs a bulky and high-energy-consumption solenoid magnet system when the microwave source operates in a repeated frequency state. If the axial size of the device is shortened as much as possible, the volume and the weight of the magnet system can be reduced by several times, and the energy requirement of a magnetic field on a power supply can be greatly reduced. Therefore, how to design a compact high-power microwave source is one of the pursued targets.
Disclosure of Invention
The invention aims to provide a technical scheme of a compact high-power microwave device with an L-waveband low-guiding magnetic field, aiming at the defects in the prior art, and the scheme can greatly reduce the volume and the weight of a high-power microwave source system and can greatly reduce the energy requirement of a magnetic field on a power supply. The method is a feasible compact design method of the high-power microwave source.
The scheme is realized by the following technical measures:
an L-band low-guiding magnetic field compact high-power microwave device comprises a circular waveguide outer cylinder, a coaxial inner conductor and a cathode; the circular waveguide outer cylinder is sleeved outside the coaxial inner conductor; the cathode is arranged at the front end of the coaxial inner conductor and emits annular electron beams; a microwave reflection cavity, a beam wave interaction cavity, a first microwave extraction cavity and a second microwave extraction cavity are sequentially arranged on the circular waveguide outer cylinder along the transmission direction of the electron beams; the annular electron beam emitted by the cathode can radiate and generate high-power microwaves with the frequency of 1.56GHz after passing through the four-resonant-cavity structure in the primary pulse.
The scheme is preferably as follows: the beam interaction chamber has an axial length of 15.0cm, which is 0.78 times the wavelength of the radiated microwaves.
The scheme is preferably as follows: the inner and outer radiuses of the microwave reflecting cavity are respectively 3.8cm and 8.5cm, and the axial length is 2.0 cm; the inner radius and the outer radius of the beam interaction cavity are respectively 3.8cm and 6.5cm, and the axial length is 3.0 cm; the inner and outer radiuses of the first microwave extraction cavity are respectively 3.8cm and 8.5cm, and the axial length is 3.0 cm; the inner radius and the outer radius of the second microwave extraction cavity are respectively 3.8cm and 8.8cm, and the axial length is 2.0 cm.
The scheme is preferably as follows: the axial distance between the microwave reflecting cavity and the beam wave interaction cavity is 1.0 cm; the axial distance between the beam interaction cavity and the first microwave extraction cavity is 3.0 cm; the axial distance between the first microwave extraction cavity axis and the second microwave extraction cavity is 1.0 cm.
The beneficial effect of the scheme can be known from the description of the scheme, because the four-cavity coaxial inner conductor slow wave structure is adopted in the scheme, the L-band device is designed to be composed of four resonant cavities such as a microwave reflection cavity, a beam interaction cavity and a microwave double-extraction cavity, and the axial length of the beam interaction cavity of the L-band device is only 15.0cm and is 0.78 times of the wavelength of the radiated microwave. The invention greatly reduces the volume and the weight of a high-power microwave source system and can greatly reduce the energy requirement of a magnetic field on a power supply.
Therefore, compared with the prior art, the invention has substantive characteristics and progress, and the beneficial effects of the implementation are also obvious.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
In the figure, 1 is a cathode, 2 is an annular electron beam, 3 is a microwave reflection cavity, 4 is a beam interaction cavity, 5 is a first microwave extraction cavity, 6 is a second microwave extraction cavity, 7 is a coaxial inner conductor, and 8 is a circular waveguide outer cylinder.
Detailed Description
All of the features disclosed in this specification, or all of the steps in any method or process so disclosed, may be combined in any combination, except combinations of features and/or steps that are mutually exclusive.
Any feature disclosed in this specification (including any accompanying claims, abstract and drawings), may be replaced by alternative features serving equivalent or similar purposes, unless expressly stated otherwise. That is, unless expressly stated otherwise, each feature is only an example of a generic series of equivalent or similar features.
As shown in FIG. 1, the present invention comprises a circular waveguide outer cylinder, a coaxial inner conductor and a cathode; the circular waveguide outer cylinder is sleeved outside the coaxial inner conductor; the cathode is arranged at the front end of the coaxial inner conductor and emits annular electron beams; a microwave reflection cavity, a beam wave interaction cavity, a first microwave extraction cavity and a second microwave extraction cavity are sequentially arranged on the circular waveguide outer cylinder along the transmission direction of the electron beams; the annular electron beam emitted by the cathode can radiate and generate high-power microwaves with the frequency of 1.56GHz after passing through the four-resonant-cavity structure in the primary pulse. The beam interaction chamber has an axial length of 15.0cm, which is 0.78 times the wavelength of the radiated microwaves. The inner and outer radiuses of the microwave reflecting cavity are respectively 3.8cm and 8.5cm, and the axial length is 2.0 cm; the inner radius and the outer radius of the beam interaction cavity are respectively 3.8cm and 6.5cm, and the axial length is 3.0 cm; the inner and outer radiuses of the first microwave extraction cavity are respectively 3.8cm and 8.5cm, and the axial length is 3.0 cm; the inner radius and the outer radius of the second microwave extraction cavity are respectively 3.8cm and 8.8cm, and the axial length is 2.0 cm. The axial distance between the microwave reflecting cavity and the beam wave interaction cavity is 1.0 cm; the axial distance between the beam interaction cavity and the first microwave extraction cavity is 3.0 cm; the axial distance between the first microwave extraction cavity axis and the second microwave extraction cavity is 1.0 cm.
Example (b):
high voltage 450kV is applied between the cathode and the anode, and the cathode emits annular hollow electron beams with the inner and outer diameters of 3.0cm and 3.5cm and the beam intensity of 6.0kA respectively. The high current electron beam is guided by the 0.5T axial magnetic field and transmitted into the beam wave interaction cavity, the electron beam transfers energy to the microwave field, and high-power microwaves with the frequency of 1.56GHz and the power of 500MW can be generated in one voltage pulse.
The specific selection parameters of the resonant cavity structure are as follows:
the inner radius and the outer radius of the microwave reflecting cavity are respectively 3.8cm and 8.5cm, and the axial length is 2.0 cm;
the beam interaction cavity has inner and outer radiuses of 3.8cm and 6.5cm respectively, and the axial length of 3.0 cm;
the inner radius and the outer radius of the first microwave extraction cavity are respectively 3.8cm and 8.5cm, and the axial length of the first microwave extraction cavity is 3.0 cm;
the inner radius and the outer radius of the second microwave extraction cavity are respectively 3.8cm and 8.8cm, and the axial length is 2.0 cm;
a coaxial inner conductor with a radius of 2.5 cm; the axial distance between the microwave reflecting cavity and the beam wave interaction cavity is 1.0 cm; the axial distance between the beam interaction cavity and the first microwave extraction cavity is 3.0 cm; the axial distance between the first microwave extraction cavity axis and the second microwave extraction cavity is 1.0 cm.
The invention is not limited to the foregoing embodiments. The invention extends to any novel feature or any novel combination of features disclosed in this specification and any novel method or process steps or any novel combination of features disclosed.
Claims (1)
1. An L-band low-guiding magnetic field compact high-power microwave device is characterized in that: comprises a circular waveguide outer cylinder, a coaxial inner conductor and a cathode; the circular waveguide outer cylinder is sleeved outside the coaxial inner conductor; the cathode is arranged at the front end of the coaxial inner conductor and emits annular electron beams; a microwave reflection cavity, a beam wave interaction cavity, a first microwave extraction cavity and a second microwave extraction cavity are sequentially arranged on the circular waveguide outer cylinder along the transmission direction of the electron beams; the annular electron beam emitted by the cathode can radiate and generate high-power microwaves with the frequency of 1.56GHz after passing through the four-resonant cavity structure in the primary pulse;
the axial length of the beam interaction cavity is 15.0cm, which is 0.78 times of the wavelength of the radiation microwave;
the inner and outer radiuses of the microwave reflecting cavity are respectively 3.8cm and 8.5cm, and the axial length is 2.0 cm; the inner radius and the outer radius of the beam interaction cavity are respectively 3.8cm and 6.5cm, and the axial length is 3.0 cm; the inner and outer radiuses of the first microwave extraction cavity are respectively 3.8cm and 8.5cm, and the axial length is 3.0 cm; the inner radius and the outer radius of the second microwave extraction cavity are respectively 3.8cm and 8.8cm, and the axial length is 2.0 cm;
the axial distance between the microwave reflecting cavity and the beam wave interaction cavity is 1.0 cm; the axial distance between the beam interaction cavity and the first microwave extraction cavity is 3.0 cm; the axial distance between the first microwave extraction cavity axis and the second microwave extraction cavity is 1.0 cm.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110718430B (en) * | 2019-09-27 | 2021-11-02 | 中国工程物理研究院应用电子学研究所 | S-band three-cavity high-power microwave device |
| CN110718431B (en) * | 2019-09-27 | 2021-11-02 | 中国工程物理研究院应用电子学研究所 | L-band three-cavity high-power microwave device |
| CN110718426B (en) * | 2019-09-27 | 2021-10-26 | 中国工程物理研究院应用电子学研究所 | High-frequency high-power microwave device |
| CN110970279B (en) * | 2019-12-23 | 2022-07-19 | 中国人民解放军国防科技大学 | Permanent magnet packaged radial strong current electron beam high-power microwave oscillator |
| CN111540659B (en) * | 2020-04-02 | 2022-03-29 | 中国工程物理研究院应用电子学研究所 | 4GHz high power microwave device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103456587A (en) * | 2013-09-11 | 2013-12-18 | 中国人民解放军国防科学技术大学 | Wave-band-cross mechanical frequency modulation relativity back wave oscillator |
| CN105551916A (en) * | 2015-12-11 | 2016-05-04 | 中国工程物理研究院应用电子学研究所 | Non-introducing magnetic field compact high-power microwave device |
| CN106098510A (en) * | 2016-07-04 | 2016-11-09 | 中国工程物理研究院应用电子学研究所 | A kind of repetition downfield axial C-band high-power pulsed ion beams |
| CN106449337A (en) * | 2016-08-12 | 2017-02-22 | 中国人民解放军国防科学技术大学 | Relativistic backward-wave oscillator with collector shaped as Chinese character chang |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103456587A (en) * | 2013-09-11 | 2013-12-18 | 中国人民解放军国防科学技术大学 | Wave-band-cross mechanical frequency modulation relativity back wave oscillator |
| CN105551916A (en) * | 2015-12-11 | 2016-05-04 | 中国工程物理研究院应用电子学研究所 | Non-introducing magnetic field compact high-power microwave device |
| CN106098510A (en) * | 2016-07-04 | 2016-11-09 | 中国工程物理研究院应用电子学研究所 | A kind of repetition downfield axial C-band high-power pulsed ion beams |
| CN106449337A (en) * | 2016-08-12 | 2017-02-22 | 中国人民解放军国防科学技术大学 | Relativistic backward-wave oscillator with collector shaped as Chinese character chang |
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