Relativistic backward wave oscillators: Theory and experiment

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Title: Relativistic backward wave oscillators: Theory and experiment
Author: Levush, B.; Antonsen, T. Jr; Bromborsky, A.; Lou, W.; Abe, D.; Miller, S.; Carmel, Y.; Rodgers, J.; Granatstein, V.; Destler, William
Abstract: Microwave sources based on backward-wave oscillators with relativistic electron beams are capable of producing high power coherent radiation in the cm and mm wavelength regime. Although there have been a number of experiments reported over the last decade on this topic, there are only a few publications providing a theoretical description of these devices. Thus, there is a need for theoretical models which can be compared in detail with the experimental data. This work is devoted to fill this need. The linear and nonlinear theory of backward-wave oscillators is developed taking into account reflection of the electromagnetic wave at the boundaries of the slow wave structure. The effects of finite duration and rise time of the electron beam pulse on device operation are discussed.
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Date: 1991

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