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Proceedings Paper

Simulation studies of the relativistic magnetron
Author(s): Robert A. Stark; H. C. Chen; Han Sup Uhm
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Paper Abstract

The magnetron has attracted much attention lately as a means of efficiently generating high-power electromagnetic radiation. However there is at present no complete theoretical description of this device. As a step in the development of such a theoretical description simulations of A6 magnetron operation have been performed with the 2-D fully electromagnetic codes MAGIC and MASK. Simulations with MAGIC have revealed mode competition between the ir and the 2irmodes with other operating parameters an mode (5. 0 GHz) is observed. Also density profiles are seen to depart markedly from Brillouin flow during preoscillation and large RF fields are observed at saturation accompanied by energetic bombardment of the anode. Simulations with MASK exhibit the ir-mode and the 2ir-mode separately. The dominant mode is seen to depend on the cathode radius in agreement with experiment. 1 .

Paper Details

Date Published: 1 April 1990
PDF: 10 pages
Proc. SPIE 1226, Intense Microwave and Particle Beams, (1 April 1990); doi: 10.1117/12.18547
Show Author Affiliations
Robert A. Stark, Naval Surface Warfare Ctr. (United States)
H. C. Chen, Naval Surface Warfare Ctr. (United States)
Han Sup Uhm, Naval Surface Warfare Ctr. (United States)

Published in SPIE Proceedings Vol. 1226:
Intense Microwave and Particle Beams
Howard E. Brandt, Editor(s)

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