The Axially modulated, cusp-injected, large-orbit gyrotron amplifier
Abstract
We introduce a novel hybrid microwave amplifier
that utilizes the axial bunching mechanism of klystrons in
conjunction with the energy extraction mechanism of cyclotron
resonance masers. A simple analytic model is used to show the
viability of the device configuration and to explore limitations of
the scheme. An example of an 11 GHz, 1 MW, fourth harmonic
amplifier is presented. Adopting a single-particle approach, numerical
simulations are used to demonstrate bunching in physical
space and to estimate system efficiency. It is shown that this configuration
enables the design of efficient, high harmonic devices
over a wide range of parameters.
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