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In this paper, we report both the theoretical study on the reversed Cherenkov radiation, including the half space and circular waveguide cases, and the experimental advancement in directly verifying the reversed Cherenkov radiation using an electron beam.
Slow wave structures used in forward wave amplifiers like wide-band helix traveling wave tube (TWT) always support backward waves. A backward wave can interact with an electron beam and compete with the forward wave, and then the power holes occur under large signal conditions. The power holes have serious consequences for the TWT performances, especially for communication applications. In this paper,...
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