Investigation and Optimization of Auxiliary Cathode for the Secondary-Emission Cold-Cathode Magnetrons
Konferenz: GeMIC 2008 - German Microwave Conference
10.03.2008 - 12.03.2008 in Hamburg-Harburg, Germany
Tagungsband: GeMIC 2008
Seiten: 4Sprache: EnglischTyp: PDFPersönliche VDE-Mitglieder erhalten auf diesen Artikel 10% Rabatt
Avtomonov, Mykola I.; Sergiy V. Sosnytskiy; Vavriv, Dmytro M. (Institute of Radio Astronomy of the National Academy of Sciences of Ukraine, Kharkov, Ukraine)
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 spatialharmonic mm-wavelength magnetrons.