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Mechanisms of Oscillations Excitation in the Spatial-Harmonic Magnetron with Cold Secondary-Emission Cathode
Proceedings of the Seventh International Kharkov Symposium on Physics and Engineering of Microwaves, Millimeter and Submillimeter Waves (MSMW'2010), 21-26 June 2010, Kharkov, Ukraine, pp.1-3 (2010)

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

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.