Improvement of the Output Characteristics of a Relativistic Magnetron using a Small Diameter Cathode Surrounded by a Transparent Cathode

Author

Bowers, L. ; Fleming, T. ; Mardahl, P. ; Bosman, H. ; Fuks, M. ; Prasad, S. ; Schamiloglu, E.

fYear

0

fDate

0-0 0

Firstpage

565

Lastpage

566

Abstract

Conventional magnetrons in which cathodes with thermionic and/or secondary electron emission are used operate poorly when the ratio of the anode-to-cathode radius is large. This transparent cathode leads to a significant improvement in the output parameters of the magnetron (efficiency and radiation power) for an appropriate selection of the radius R_strip of the transparent cathode, in addition to providing faster start of oscillations than the techniques of cathode (Jones et al., 2004) and magnetic (Jones et al., 2004) priming alone

Keywords

electromagnetic oscillations; magnetrons; secondary electron emission; thermionic cathodes; magnetic priming; oscillations; output characteristics; radiation power; relativistic magnetron; secondary electron emission; small diameter cathode; transparent cathode; Anodes; Cathodes; Electron emission; Electron mobility; Erbium; Frequency; Laboratories; Microwave devices; Space charge; Strips;

fLanguage

English

Publisher

ieee

Conference_Titel

Vacuum Electronics Conference, 2006 held Jointly with 2006 IEEE International Vacuum Electron Sources., IEEE International

Conference_Location

Monterey, CA

Print_ISBN

1-4244-0108-9

Type

conf

DOI

10.1109/IVELEC.2006.1666434

Filename

1666434