Theoretical investigation of cold startup of magnetrons with cold secondary-emission

cathode by external UHF-field
 

M. I.  Avtomonov, D. M. Vavriv, S. V. Sosnytsky

Department of Microwave Electronics, Institute of Radio Astronomy, Kharkov, Ukraine
 

Received December 14, 2009

 

Theoretical analysis of self-oscillations excitation mechanisms in magnetrons with cold secondary-emission cathode without the use of an auxiliary thermocathode was carried out. Processes of self-oscillations excitation using modulated pulse of anode voltage were studied. Conditions , when this type of self-oscillations excitation mechanism is possible to be realized, are defined.

Keywords: magnetron, cold startup.