Asymmetrical slow wave structures to eliminate backward wave oscillations in wideband traveling wave tubes
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United States of America Patent
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Dec 1, 2015
Grant Date -
Sep 18, 2014
app pub date -
Mar 13, 2013
filing date -
Mar 13, 2013
priority date (Note) -
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Abstract
In various embodiments, a traveling wave amplifier circuit is disclosed. The traveling wave amplifier circuit is configured to receive an RF wave and an electron beam. The traveling wave amplifier effects synchronized interaction between the RF wave and the electron beam. The traveling wave amplifier circuit comprises a waveguide. The waveguide comprises a plurality of asymmetric cells arranged periodically. The waveguide is configured to receive an electron beam. Each of the asymmetric cells comprises at least one asymmetrical structure within the asymmetric cell to modify the dispersion relation of the waveguide.
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