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Investigation and optimization of auxiliary cathode for the secondary-emission cold-cathode magnetrons
Proceedings of the German Microwave Conference, pp.267-270 (2008)

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

A theoretical study of properties of the auxiliary cathode of magnetrons with cold secondary-emission cathodes is performed. Different methods of providing a spatial-charge limited emission from the auxiliary cathode are studied in order to eliminate the temperature dependence of the emission current. New designs of the auxiliary cathode are proposed to provide a better emission current stability with respect to temperature variations, as compared to the currently used cathodes in spatial-harmonic mm-wavelength magnetrons.