Open AccessNonlinear simulation of a coaxial gyro-amplifier with external electrostatic voltage
Author(s) -
Yanyan Kong,
Shichang Zhang
Publication year - 2011
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.60.095201
Subject(s) - coaxial , amplifier , transverse plane , physics , saturation (graph theory) , voltage , optics , terahertz radiation , nonlinear system , cathode ray , electron , optoelectronics , electrical engineering , engineering , mathematics , structural engineering , cmos , combinatorics , quantum mechanics
A proposal is presented to enhance the saturation output power of a small-orbit coaxial gyro-amplifier by employing an external electrostatic voltage. Nonlinear simulations show that improved saturation output power increases 19 % for a transverse electric mode at a frequency of 0.14 THz. Both the ratio of the electron-beam transverse velocity to the axial velocity and the spread of transverse velocity do not cause obvious influence on the saturation power. Therefore the performance of gyro-amplifier is effectively improved.