Stability of a High Order Mode CARM Amplifier
Journal
IEEE Transactions on Electron Devices
Journal Volume
36
Journal Issue
4
Pages
785-788
Date Issued
1989
Author(s)
Abstract
A TE/sub 01/-mode CARM (cyclotron autoresonance maser) amplifier is studied with a multimode particle simulation code with emphasis on the oscillation caused by the TE/sub 11/ mode absolute instability. Simulation results verify the existence of the absolute instability and show that it quickly reaches a high saturation level. The dominance and persistence of the absolute instability prevent any steady-state amplification of the TE/sub 01/ mode. The linear and nonlinear characteristics of a TE/sub 11/ mode CARM amplifier are also examined. It is noted that a high-quality electron beam is essential in order to reach the interesting regime of operation.>
Type
journal article