A dual-frequency three-cavity high-power microwave device

A microwave device and power technology, which is applied to the circuit components of the transit time type electron tube, the coupling device of the transit time type electron tube, etc., can solve the problems of large size, high energy consumption, strong guiding magnetic field, etc. The effect of compact structure and reduced energy requirements

Active Publication Date: 2021-10-26
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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  • A dual-frequency three-cavity high-power microwave device

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[0024] 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.

[0025] 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.

[0026] like figure 1 As shown, a dual-frequency 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 70mm; the inner conductor is connected to the other end of the circul...

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Abstract

The invention discloses a dual-frequency three-cavity high-power microwave device, which comprises 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, and the cathode The opening of the cathode is ring-shaped, the inner diameter of the cathode is 60mm, and the outer diameter is 70mm; the circular waveguide sleeve is sequentially provided with a reflection cavity, a resonant cavity and an extraction cavity with the same inner diameter along the electron beam transmission direction, and the reflection cavity, the resonant cavity and the extraction cavity are The annular groove set on the wall of the circular waveguide sleeve; the axial length of the microwave device is 130mm, the maximum diameter is 150mm, and the diameter of the inner conductor is 40mm; the cathode emits an annular electron beam with a beam intensity of 7.0kA at a voltage of 400KV. The beam is transmitted in the microwave device under the guidance of the axial magnetic field of 0.4T, and the dual-frequency high-power microwaves with frequencies of 1.92GHz and 2.2GHz can be radiated simultaneously within one pulse time. The dual-frequency three-cavity high-power microwave device of the present invention has the advantages of miniaturization, light weight and easy adjustment.

Description

technical field [0001] The invention relates to a dual-frequency 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-p...

Claims

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Application Information

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Patent Type & Authority Patents(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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