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

fYear

1998

Firstpage

134

Lastpage

135

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Plasma Science, 1998. 25th Anniversary. IEEE Conference Record - Abstracts. 1998 IEEE International on

Conference_Location

Raleigh, NC, USA

ISSN

0730-9244

Print_ISBN

0-7803-4792-7

Type

conf

DOI

10.1109/PLASMA.1998.677527

Filename

677527