Title :
Coupled Circular Cavities for Transit-Time Microwave Tubes
Author :
Barroso, Joaquim J. ; Neto, Joaquim Paulino Leite
Author_Institution :
Assoc. Plasma Lab., Nat. Inst. for Space Res., Sao Jose dos Campos, Brazil
fDate :
6/1/2010 12:00:00 AM
Abstract :
We examine both analytically and numerically by using a 2-D electromagnetic solver the frequency tuning characteristics and electric-field patterns in a two-celled system consisting of cylindrical cavities coupled by a circular iris. It is shown that the presence of the iris introduces unique features not found in hollow circular cavities, namely, the occurrence of flat portions on the frequency tuning curves for varying iris radius and also a Q factor 10% higher than that of the otherwise smooth cavity.
Keywords :
circuit tuning; coupled circuits; electric fields; microwave tubes; transit time devices; 2D electromagnetic solver; coupled circular cavities; cylindrical cavities; electric-field patterns; frequency tuning; transit-time microwave tubes; Coupled cavities; periodic-loaded waveguides; split-cavity monotrons;
Journal_Title :
Plasma Science, IEEE Transactions on
DOI :
10.1109/TPS.2009.2038384
