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L-band three-cavity high-power microwave device

A microwave device and L-band technology, applied in the field of high-power microwave devices, can solve the problems of bulky, strong guiding magnetic field, high energy consumption, etc., and achieve the effect of reducing volume, reducing energy demand, and simple structure size

Active Publication Date: 2020-01-21
INST OF APPLIED ELECTRONICS CHINA ACAD OF ENG PHYSICS
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Problems solved by technology

In the existing high-power microwave sources, high-impedance devices have high beam conversion efficiency, but generally require a strong guiding magnetic field, especially when the microwave source operates at a repetition rate, a bulky, high-energy-consuming The solenoid magnet system

Method used

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  • L-band three-cavity high-power microwave device

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Embodiment Construction

[0022] All features disclosed in this specification, or steps in all methods or processes disclosed, may be combined in any manner, except for mutually exclusive features and / or steps.

[0023] Any feature disclosed in this specification, unless specifically stated, can be replaced by other alternative features that are equivalent or have similar purposes. That is, unless expressly stated otherwise, each feature is one example only of a series of equivalent or similar features.

[0024] like figure 1 As shown, an L-band three-cavity high-power microwave device in this embodiment includes a circular waveguide sleeve and an inner conductor coaxial with the circular waveguide sleeve. One end of the circular waveguide sleeve is provided with a cathode coaxial with the circular waveguide sleeve, the opening of the cathode is ring-shaped, the inner diameter of the cathode is 60mm, and the outer diameter is 69mm; the inner conductor is connected to the other end of the circular wave...

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Abstract

The invention discloses an L-band three-cavity high-power microwave device, which comprises a circular waveguide sleeve and an inner conductor coaxial with the circular waveguide sleeve. A cathode coaxial with the circular waveguide sleeve is arranged at one end in the circular waveguide sleeve. The opening of the cathode is annular, the inner diameter of the cathode is 60mm, and the outer diameter of the cathode is 69mm. The circular waveguide sleeve is sequentially provided with a reflection cavity, a resonant cavity and an extraction cavity with the same inner diameter in the electron beamtransmission direction, and the reflection cavity, the resonant cavity and the extraction cavity are annular grooves formed in the circular waveguide sleeve. The axial length of the microwave device is 130mm, the maximum diameter of the microwave device is 150mm, and the diameter of the inner conductor is 40mm. The cathode emits an annular electron beam with the beam intensity of 7.0kA, the innerdiameter of 60mm and the outer diameter of 69mm under a 400KV voltage, the annular electron beam is transmitted in the microwave device under the guidance of a 0.4T axial magnetic field, and L-band high-power microwaves with the frequency of 1.92GHz are generated through radiation within one pulse time. The L-band three-cavity high-power microwave device has the advantages of being small in size,light and easy to adjust.

Description

technical field [0001] The invention relates to an L-band three-cavity high-power microwave device, belonging to the technical field of high-power microwave devices. Background technique [0002] High-power microwave generally refers to electromagnetic waves with peak power above 100MW and operating frequency in the range of 1-300GHz. With the development of high-power microwave research, higher and higher requirements are put forward for the total system efficiency of high-power microwave sources. [0003] The axial O-shaped high-power microwave device is a kind of high-power microwave device that is widely used due to the easy guidance of the electron beam brought by the structure and the variable combination of the structure. At present, the radiation generation of axial O-type high-power microwave devices generally requires a longer slow-wave structure to achieve synchronization of the phase velocity of the electron beam and the microwave. In the existing high-power mi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01J23/36H01J23/24
CPCH01J23/24H01J23/36
Inventor 丁恩燕张运俭
Owner INST OF APPLIED ELECTRONICS CHINA ACAD OF ENG PHYSICS
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