Theoretical analysis for low-noise beam transducers

Analytical expressions for the noise figure of a traveling-wave amplifier (TWA) preceded by a nonuniform drift space are derived. Numerical results show that the noise figure for an accelerated beam has a minimum at a specific drift length. Also, when the noise figure is plotted as a function of hea...

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Bibliographic Details
Published in:IEEE transactions on electron devices 1973-12, Vol.20 (12), p.1160-1162
Main Author: El-Shandwily, M.E.
Format: Article
Language:English
Online Access:Get full text
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Summary:Analytical expressions for the noise figure of a traveling-wave amplifier (TWA) preceded by a nonuniform drift space are derived. Numerical results show that the noise figure for an accelerated beam has a minimum at a specific drift length. Also, when the noise figure is plotted as a function of heater power, it shows a minimum value.
ISSN:0018-9383
1557-9646
DOI:10.1109/T-ED.1973.17812