Title :
A gyrotron-traveling-wave amplifier based on lossy dielectric-coated metal cylindrical waveguide
Author :
Du, Chao-Hai ; Xue, Qian-zhong ; Liu, Pu-Kun ; Wang, Ming-Hong
Author_Institution :
Key Lab. of High Power Microwave Sources & Technol., Chinese Acad. of Sci., Beijing, China
Abstract :
Simulation of a gyrotron-traveling-wave amplifier (gyro-TWT) based on periodic lossy dielectric-coated metal cylindrical waveguide is presented. The lossy property of the periodically loaded dielectric relieves the worries of the potential Bragg resonance arising from the periodicity of the interaction circuit, brings high attenuation to the potential competing mode, and enhances the stability of a gyro-TWT. A simplified designing process of a Ka-band gyro-TWT based on the lossy dielectric-coated waveguide is presented in this paper.
Keywords :
circular waveguides; dielectric waveguides; gyrotrons; travelling wave amplifiers; Bragg resonance; Ka-band gyro-TWT; dielectric coated waveguide; gyrotron-traveling-wave amplifier; lossy property; metal cylindrical waveguide; Attenuation; Circuits; Dielectric losses; Electromagnetic waveguides; High power amplifiers; Laboratories; Microwave amplifiers; Process design; Resonance; Tellurium; absolute instability; gyro-TWT; lossy dielectric;
Conference_Titel :
Vacuum Electronics Conference, 2009. IVEC '09. IEEE International
Conference_Location :
Rome
Print_ISBN :
978-1-4244-3500-5
Electronic_ISBN :
978-1-4244-3501-2
DOI :
10.1109/IVELEC.2009.5193493
