Physics of spatial-harmonic magnetrons with cold cathode

Author

Sosnytskiy, S.V. ; Vavriv, D.M. ; Schünemann, K.

Author_Institution

Inst. of Radio Astron., Acad. of Sci., Kharkov, Ukraine

Volume

2

fYear

2001

fDate

2001

Firstpage

522

Abstract

The conventional notions about the physics of magnetrons do not work in the case of spatial-harmonic magnetrons with cold secondary-emission cathodes. There are several important features differentiating such devices from the conventional magnetrons, including a non-periodicity of space charge structure, coexistence of electron bunches with different periods, multi-stability effects at certain working modes, and the strong influence of non-synchronous harmonics. It has also been shown that the secondary electron emission can be caused by interaction with either the fundamental space harmonic of the RF field or the synchronous one, and that the multi-stability arises when the secondary emission process is governed by the synchronous space harmonic

Keywords

cathodes; harmonics; magnetrons; secondary electron emission; space charge; stability; RF field; cold secondary-emission cathode; electron bunches; low DC magnetic field; multi-stability effects; nonsynchronous harmonics; physical processes; secondary electron emission; space charge structure; spatial-harmonic magnetrons; synchronous space harmonic; Anodes; Cathodes; Electrons; Magnetrons; Mathematical model; Physics; Power generation; Radio astronomy; Resonance; Space charge;

fLanguage

English

Publisher

ieee

Conference_Titel

Physics and Engineering of Millimeter and Sub-Millimeter Waves, 2001. The Fourth International Kharkov Symposium on

Conference_Location

Kharkov

Print_ISBN

0-7803-6473-2

Type

conf

DOI

10.1109/MSMW.2001.947218

Filename

947218