Mixed excitation system of full-chamber extraction relativistic magnetron

Abstract

The invention discloses a mixed excitation system of a full-chamber extraction relativistic magnetron. The mixed excitation system comprises an anode outer cylinder and a cathode which is arranged in the anode outer cylinder. The cathode and the anode outer cylinder are coaxially arranged. An anode block is arranged between the cathode and the anode outer cylinder. A beam interaction area is arranged between the cathode and the anode block. An magnetic field coil sleeves the external surface of the anode outer cylinder. The mixed excitation system comprises a permanent magnet which is arranged between the anode outer cylinder and the cathode. According to the mixed excitation system, the permanent magnet is embedded into the magnetron, thereby sufficiently utilizing the inner space of the magnetron. The embedded permanent magnet effectively improves magnetic field at the end of the magnetic field coil. Through use of the embedded permanent magnet and the magnetic field coil, thereby realizing uniform distribution of the magnetic field in the interaction area, and furthermore realizing relatively low power consumption of the whole mixed excitation system of the full-chamber extraction relativistic magnetron.

Description

technical field [0001] The invention belongs to the technical field of high-power microwaves, and in particular relates to a hybrid excitation system for extracting relativistic magnetrons with full cavity. Background technique [0002] High-power microwave is a research field that has developed rapidly since the 1970s with the advancement of plasma technology, pulsed power technology and the development of computer particle simulation software. High-power microwave sources are one of the key components in high-power microwave systems. First, the relativistic magnetron (RM), as a typical representative of high-power microwave sources, has the advantages of simple structure, low operating magnetic field, high-power and repetitive pulse operation, and multi-tube phase-locked work. The potential of high power is therefore widely valued internationally. In order to improve the working performance of the relativistic magnetron, researchers have conducted extensive research on it...

AI Technical Summary

Problems solved by technology

The magnetic field wire package is an excitation method that is widely used in practice, mainly because it has the advantages of mature production technology, low cost, and the ability to provide a large uniform magnetic field, but it also has some shortcomings of its own, and its energy consumption is relatively high. High and high-energy power supply will increase the volume and weight of the system, which is not conducive to the miniaturization of high-power microwave sources

Permanent magnets have the advantages of no energy consumption, stable magnetic field, and high reliability. However, the cost of permanent magnets is high. In addition, the magnetic field of permanent magnets is determined by their own permanent magnet structure and magnetic circuit permeability. After the design is formed, its excitation range is limited. , it is difficult to adjust

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