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A contribution to computer analysis of coupled-cavity traveling wave tubesA flexible accurate large-signal computer program has been developed for the design of coupled-cavity traveling wave tubes. The program is written for a TSS-360 time sharing system. The beam is described by a disk model and the slow wave structure by a sequence of cavities or cells. The computational approach is arranged so that each cavity may have different geometrical or electrical parameters than its neighbors. This allows the program user to simulate a tube of almost arbitrary complexity. Input and output couplers, severs, complicated velocity tapers, and other features peculiar to one or a few cavities may be modeled by a correct choice of input data. The beam-wave interaction is handled by a new approach in which the RF fields are expanded in solutions to the TM wave equation retaining all significant space harmonics. The program was used to perform a design study of the TWT developed for the CTS satellite. Good agreement was obtained between the predictions of the program and the measured performance of the flight tube. The internal check on power balance was satisfied within plus or minus 0.2 per cent of input beam power.
Document ID
19770037417
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Connolly, D. J.
(NASA Lewis Research Center Cleveland, OH, United States)
Omalley, T. A.
(NASA Lewis Research Center Cleveland, Ohio, United States)
Date Acquired
August 9, 2013
Publication Date
January 1, 1977
Publication Information
Publication: IEEE Transactions on Electron Devices
Volume: ED-24
Subject Category
Electronics And Electrical Engineering
Accession Number
77A20269
Distribution Limits
Public
Copyright
Other

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