Title :
Linear theory of a plasma-loaded, helix type, slow wave amplifier
Author :
Kobayashi, S. ; Antonsen, T.M. ; Nusinovich, Gregory
Author_Institution :
Inst. for Plasma Res., Maryland Univ., College Park, MD, USA
Abstract :
Summary form only given. The linear theory of a plasma-loaded, helix type travelling wave tube amplifier (TWTA) is considered. The role of plasma on the gain and the degree of concentration of the high frequency fields in the region of the plasma is studied. Strong gain enhancements are observed for frequencies in which hybrid plasma-slow waves are formed. Use of plasma allows for strong interaction even if the beam is displaced from the immediate vicinity of the structure. This latter effect could allow for the development of higher power amplifiers with larger cross-sectional areas.
Keywords :
plasma filled waveguides; power amplifiers; travelling wave amplifiers; amplifier cross-sectional areas; high frequency fields; hybrid plasma-slow wave formation; linear theory; plasma-loaded helix type slow wave amplifier; strong gain enhancements; Educational institutions; Electromagnetic coupling; Electromagnetic radiation; Electrons; Plasma devices; Plasma properties; Plasma waves; Q factor; Radio frequency; Resonance;
Conference_Titel :
Plasma Science, 1998. 25th Anniversary. IEEE Conference Record - Abstracts. 1998 IEEE International on
Conference_Location :
Raleigh, NC, USA
Print_ISBN :
0-7803-4792-7
DOI :
10.1109/PLASMA.1998.677527
