Title :
Comparative study of dielectric loaded structures for suppressing gyro-BWO instabilities in gyrotron beam-ducts (BD) using HFSS
Author :
Thorndahl, L. ; Alberti, Stefano ; Hogge, J.-P. ; Li, Fan ; Tran, T.M.
Abstract :
A comparative study of a variety of electromagnetic (EM) structures designed for suppressing a gyro-BWO instability in the W7-X gyrotron beam-duct is presented. The EM fields are calculated using the finite element code HFSS. It is shown that among dielectric-loaded ring-structures the one having random azimuthal indentations on the copper ring is efficient and so are conical dielectric-loaded structures without copper rings.
Keywords :
dielectric materials; gyrotrons; HFSS; conical dielectric loaded structures; copper ring; electromagnetic structures; gyrotron beam ducts; random azimuthal indentations; suppressing gyro BWO instabilities; Couplings; Dielectrics; Dispersion; Geometry; Gyrotrons; Periodic structures; Silicon carbide;
Conference_Titel :
Infrared, Millimeter and Terahertz Waves (IRMMW-THz), 2011 36th International Conference on
Conference_Location :
Houston, TX
Print_ISBN :
978-1-4577-0510-6
Electronic_ISBN :
2162-2027
DOI :
10.1109/irmmw-THz.2011.6104927
