Mechanisms of oscillations excitation in the spatial-harmonic magnetron with cold secondary-emission cathode

Author

Avtomonov, N.I. ; Sosnytskiy, S.V. ; Vavriv, D.M.

Author_Institution

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

fYear

2010

fDate

21-26 June 2010

Firstpage

1

Lastpage

3

Abstract

In this presentation, a theory of the excitation of oscillations in SHM has been presented. The theory covers different scenarios of the magnetron start-up including usage an auxiliary thermionic cathode or an external RF-signal. A detailed study of the influence of the secondary emission yield on the magnetron output characteristics has been performed. A new design of an auxiliary thermionic cathode is proposed to improve the temperature stability of the cathode and magnetron characteristics.

Keywords

harmonic oscillators (circuits); magnetrons; oscillations; RF signal; auxiliary thermionic cathode; cold secondary-emission cathode; magnetron output characteristics; magnetron startup; oscillation excitation; spatial harmonic magnetron; temperature stability; Cathodes; Magnetic resonance; Oscillators; Power generation; RF signals; Temperature dependence; Thermal stability;

fLanguage

English

Publisher

ieee

Conference_Titel

Physics and Engineering of Microwaves, Millimeter and Submillimeter Waves (MSMW), 2010 International Kharkov Symposium on

Conference_Location

Kharkiv

Print_ISBN

978-1-4244-7900-9

Type

conf

DOI

10.1109/MSMW.2010.5546139

Filename

5546139