Synthesis of dielectric helix supports for wideband traveling-wave tubes
Sun-Shin Jung
Vacuum Electrophysics Laboratory, School of Physics, Seoul National University, Seoul 151-742, Korea
Search for more papers by this authorYoung-Do Joo
Vacuum Electrophysics Laboratory, School of Physics, Seoul National University, Seoul 151-742, Korea
Search for more papers by this authorB. N. Basu
Centre of Research in Microwave Tubes, Department of Electronics Engineering, Institute of Technology, Banaras Hindu University, Varanasi 221005, India
Search for more papers by this authorGun-Sik Park
Vacuum Electrophysics Laboratory, School of Physics, Seoul National University, Seoul 151-742, Korea
Search for more papers by this authorSun-Shin Jung
Vacuum Electrophysics Laboratory, School of Physics, Seoul National University, Seoul 151-742, Korea
Search for more papers by this authorYoung-Do Joo
Vacuum Electrophysics Laboratory, School of Physics, Seoul National University, Seoul 151-742, Korea
Search for more papers by this authorB. N. Basu
Centre of Research in Microwave Tubes, Department of Electronics Engineering, Institute of Technology, Banaras Hindu University, Varanasi 221005, India
Search for more papers by this authorGun-Sik Park
Vacuum Electrophysics Laboratory, School of Physics, Seoul National University, Seoul 151-742, Korea
Search for more papers by this authorAbstract
An n-dielectric tube prototype structure consisting of a helix surrounded by adjoining dielectric tubes in an overall envelope was studied by HFSS for flat-to-negative dispersion characteristics needed for wideband traveling-wave tubes. The prototype structure obtained was then “synthesized” to obtain a wedge-shaped n-step staircase dielectric support structure for a helix. © 2002 John Wiley & Sons, Inc. Microwave Opt Technol Lett 32: 231–235, 2002.
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