DocumentCode
1402013
Title
Linear theory of a plasma loaded, helix type, slow wave amplifier
Author
Kobayashi, Saturo ; Antonsen, Thomas M., Jr. ; Nusinovich, Gregory S.
Author_Institution
Inst. for Plasma Res., Maryland Univ., College Park, MD, USA
Volume
26
Issue
3
fYear
1998
fDate
6/1/1998 12:00:00 AM
Firstpage
669
Lastpage
679
Abstract
The linear theory of a plasma loaded helix type traveling 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
microwave power amplifiers; slow wave structures; travelling wave amplifiers; gain; high frequency fields; higher power amplifiers cross-sectional areas; hybrid plasma-slow waves; linear theory; plasma loaded helix type slow wave amplifier; traveling wave tube amplifier; Dielectrics; Electromagnetic coupling; Electron beams; Frequency; Particle beams; Plasma confinement; Plasma devices; Plasma sheaths; Plasma sources; Plasma waves;
fLanguage
English
Journal_Title
Plasma Science, IEEE Transactions on
Publisher
ieee
ISSN
0093-3813
Type
jour
DOI
10.1109/27.700804
Filename
700804
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