Compact relativity backward wave oscillator (RBWO) with adjustable low-frequency-range frequency

A low-frequency, compact technology, applied in the field of microwave source devices, can solve the problems of large size of RBWO and difficult adjustment of output microwave frequency, and achieve the effect of eliminating reflection, easily adjustable operating frequency, and weakening the influence.

Active Publication Date: 2011-10-05
NAT UNIV OF DEFENSE TECH
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Problems solved by technology

[0017] The technical problem to be solved by the present invention is to overcome the disadvantages of the large size of RBWO in the low frequency band and the difficulty in adjusting the output microwave frequency, and design a RBWO in the low frequency band with adjustable frequency, and the microwave source has a compact structure and high power conversion efficiency

Method used

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  • Compact relativity backward wave oscillator (RBWO) with adjustable low-frequency-range frequency
  • Compact relativity backward wave oscillator (RBWO) with adjustable low-frequency-range frequency
  • Compact relativity backward wave oscillator (RBWO) with adjustable low-frequency-range frequency

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Embodiment Construction

[0033] figure 1 For background technology [Niu Hongchang, Qian Baoliang. Particle simulation of compact L-band coaxial relativistic return wave oscillator. Strong laser and particle beam, 2006, Vol.18, No.11, pp.1879-1882] Schematic diagram of the structure of the L-band coaxial RBWO. For the convenience of description, the side close to the cathode seat along the axis is called the left end, and the side far away from the cathode seat is called the right end. The structure consists of a cathode seat 1, a cathode 2, an anode outer cylinder 3, a cut-off neck 4, a slow wave structure 5, an inner conductor 6, a collector 7, a microwave output port 8, a solenoid magnetic field 9, a wave-absorbing medium 10, and a support rod 11, the whole structure is rotationally symmetrical about the central axis. Although the paper announces the composition of the structure, the structure is only a numerical simulation model initially established, and there is no specific technical solution. ...

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Abstract

The invention discloses a compact relativity backward wave oscillator (RBWO) with an adjustable low-frequency-range frequency, and the oscillator provided by the invention is used for solving the problems that the RBWO size in a low frequency range is great, and the output microwave frequency is hard to adjust. The compact RBWO is in rotational symmetry with respect to a central axis, and composed of a cathode base, a cathode, an anode outer barrel, a stop neck, a slow wave structure, an inner conductor, a collector, a microwave output port, a solenoid field, two rows of supporting rods, a mode converter, a radiation port and a sealing plate; the slow wave structure is composed of five slow wave blades, the inner surface of each slow wave blade is in a trapezoid structure; the left end face of the collector is provided with an annular groove; the left end of the mode converter is cylindrical, and the right end of the mode converter is in a tapered structure; the radiation port is cylindrical, the left end of the radiation port is in a tapered structure and the right end of the radiation port is cylindrical; the sealing plate is pressed on the radiation port; and the frequency of the output microwave is adjusted by virtue of adjusting the semi-diameter R3 of the inner conductor. The compact RBWO has the advantages of compact structure and convenient and adjustable work frequency, thereby being beneficial to outputting a long pulse of the microwave.

Description

technical field [0001] The invention relates to a microwave source device in the technical field of high-power microwaves, in particular to a compact, low-frequency, frequency-adjustable relativistic back-wave oscillator RBWO (Relativistic Backward-Wave Oscillator). Background technique [0002] In recent years, the attractive prospects of high-power microwaves (according to the agreement of Benford and Swegle, high-power microwaves refer to electromagnetic waves with a peak power greater than 100MW and a frequency between 1 and 300GHz) in many fields have attracted widespread attention in many countries and a large number of Research has been invested and great technological progress has been made. At present, a variety of applications of high-power microwaves have been proposed: high-power microwave directed energy weapons, energy supply for satellites and space platforms, launch of small deep-space probes, altitude-changing propulsion systems for orbiters, electronic high...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01J25/46H01J23/26H01J23/027
Inventor 葛行军钟辉煌钱宝良张军高梁
Owner NAT UNIV OF DEFENSE TECH
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