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Dual-band low-guiding magnetic field compact high-power microwave device

A high-power microwave and guided magnetic field technology, which is applied to the circuit components of transit-time electronic tubes, etc., can solve the problems of strong guided magnetic field, large volume, high energy consumption, etc.

Active Publication Date: 2019-03-26
INST OF APPLIED ELECTRONICS CHINA ACAD OF ENG PHYSICS
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AI Technical Summary

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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  • Dual-band low-guiding magnetic field compact high-power microwave device
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  • Dual-band low-guiding magnetic field compact high-power microwave device

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specific Embodiment

[0021] The vacuum in the dual-band low-guiding magnetic field compact high-power microwave device is treated to the millipascal level by a vacuum acquisition device. A high voltage of 450kV is applied between the cathode and the anode, and the cathode emits an annular hollow electron beam with inner and outer diameters of 3.0cm and 3.5cm, respectively, and a beam intensity of 6.0kA. Under the guidance of the 0.5T axial magnetic field, the high-current electron beam is transmitted into the beam-wave interaction area, and the electron beam transfers the energy to the microwave field. A voltage pulse can generate high power with frequencies of 1.56GHz and 2.45GHz and a power of 500MW respectively. microwave.

[0022] The specific selection parameters of the L-band device are:

[0023] Microwave reflection cavity, the inner and outer radii are 3.8cm and 8.5cm respectively, and the axial length is 2.0cm;

[0024] The beam interaction cavity has an inner and outer radius of 3.8cm ...

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Abstract

The invention provides a dual-band low-guiding magnetic field compact high-power microwave device, which comprises a circular waveguide outer cylinder, a coaxial inner conductor and a cathode; whereinthe circular waveguide outer cylinder is sleeved outside the coaxial inner conductor; the cathode is provided on the front end of the coaxial inner conductor to emit circular electron beams; the circular waveguide outer cylinder is provided with an L-band device and an S-band device in the direction of electron beam transmission; and the annular electron beams emitted by the cathode, after passing through the L-band device and the S-band device in one pulse, can simultaneously generate high-power microwaves in the L, S-band. The dual-band low-guiding magnetic field compact high-power microwave device greatly reduces the volume and weight of a high-power microwave source system, and can greatly reduce the energy requirement of the magnetic field for the power source.

Description

technical field [0001] The invention relates to the technical field of high-power microwave devices, in particular to a dual-band low-guided magnetic field compact high-power microwave device. Background technique [0002] High-power microwave generally refers to electromagnetic waves with a peak power above 100MW and an 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...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01J23/24
CPCH01J23/24
Inventor 张运俭马宏舸丁恩燕秦风赵刚
Owner INST OF APPLIED ELECTRONICS CHINA ACAD OF ENG PHYSICS
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