Measurements of gain for slow cyclotron waves on an annular electron beam
Journal
Physical Review Letters
Journal Volume
49
Journal Issue
10
Pages
730-733
Date Issued
1982
Author(s)
Abstract
Gain was measured for fast and slow waves propagating in a dielectric-loaded TE01 axi-symmetric waveguide penetrated by an annular electron beam. This measurement is the first reported in the slow-wave regime, where axial velocity modulation dominates the azimuthal bunching. Small-signal gain at 6.0 GHz of over 30 dB, instantaneous bandwidth of 3.7%, and tuning bandwidth of over 11% are reported. In a feedback-amplifier configuration gain of 53 dB, power output of 20 kW, and 10% electronic efficiency are also reported. © 1982 The American Physical Society.
SDGs
Type
journal article