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Proceedings Paper

High Power Traveling Wave Amplifier Experiments
Author(s): John A. Nation; D. Shiffler; J. D. Ivers; G. Kerslick
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Paper Abstract

Several high power X band traveling wave amplifiers (TWA) have been fabricated and tested. The tubes have gains ranging from 13dB to 29dB at 8.76 GHz, and output powers ranging from 3 to 100 MW. The amplifiers are driven by the interaction of a slow space charge wave on an electron beam with an electromagnetic wave supported by the structure. The electron beam has an energy of 850 keV, and currents in the 1 kA range. The amplifiers operate over a narrow range of frequencies which increases slowly with the length of the structure. The gain of the amplifiers increases rapidly with the beam current and with increases in the structure length. No evidence of oscillation in higher order modes has been found. We summarize in this paper the main features of the amplifiers.

Paper Details

Date Published: 25 July 1989
PDF: 7 pages
Proc. SPIE 1061, Microwave and Particle Beam Sources and Directed Energy Concepts, (25 July 1989); doi: 10.1117/12.951767
Show Author Affiliations
John A. Nation, Cornell University (United States)
D. Shiffler, Cornell University (United States)
J. D. Ivers, Cornell University (United States)
G. Kerslick, Cornell University (United States)

Published in SPIE Proceedings Vol. 1061:
Microwave and Particle Beam Sources and Directed Energy Concepts
Howard E. Brandt, Editor(s)

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