Linear Study of a Large-orbit Coaxial-waveguide Cyclotron Autoresonance Maser Amplifier

Authors: Chai, B.; Zhang, S.-C.; Qiu, C.-R.; Zhang, H.-B.; Lai, Y.-X.; Xin, Q.

Source: International Journal of Infrared and Millimeter Waves, Volume 28, Number 6, June 2007 , pp. 423-432(10)

Publisher: Springer

Buy & download fulltext article:

Price: $47.00 plus tax (Refund Policy)

Abstract:

A linear theory based on Maxwell-Vlasov equations and the Laplace transform is presented to describe the large-orbit coaxial-waveguide cyclotron autoresonance maser (CARM) amplifier. A 35-GHz, TE_5,1-mode large-orbit coaxial-waveguide CARM amplifier is specifically analyzed. Good agreement between the linear theory and the nonlinear simulations is found in the exponentially growing region of the wave. Results show that the operating magnetic field and the electron-beam energy and average radius substantially affect the power, and especially, a small beam current may be unsuitable to a large-orbit CARM amplifier operation.

Keywords: Cyclotron autoresonance maser; Coaxial waveguide; Large-orbit electron beam; Linear theory

Document Type: Research article

DOI: http://dx.doi.org/10.1007/s10762-007-9220-1

Affiliations: 1: Email: sczhang@home.swjtu.edu.cn

Publication date: 2007-06-01