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The present report examines both analytically and numerically by using a two-dimensional electromagnetic solver the frequency tuning characteristics and electric-field patterns in a two-celled system consisting of cylindrical cavities coupled by a circular iris. It is shown that the presence of the iris introduces unique features not found in hollow circular cavities, namely, the occurrence of flat...
A comparative study is given on the bunching mechanisms which develops in transit-time tubes with RF-field bunching, often referred to as monotrons. Uniform and stepped wise longitudinal electric-field profiles are discussed, and it is shown that the two-fold enhancement in the conversion efficiency of a monotron operating in the ?? mode-instead of the longitudinally uniform TM010 mode for which the...
The two-fold enhancement in the conversion efficiency of a monotron operating in the pi mode-instead of the TM010 mode for which the efficiency is limited to 20 percent-arises from a phase synchronization process due the action of RF electric fields of reversed signs in each partition of the bisected cavity.
The twofold enhancement in the conversion efficiency of a monotron operating in the pi mode-instead of the longitudinally uniform TM010 mode for which the efficiency is limited to 20%-arises from a phase synchronization process due to the action of RF electric fields of reversed signs in each partition of the bisected cavity.
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