Investigation of 0.38 THz backward-wave oscillator based on slotted sine waveguide and pencil electron beam
Zhang L., Wei Y., Wang B., Shen W., Xu J., Gong Y., Park G.-S.
Physics of Plasmas, 23(3), 033111(2016)
DOI: 10.1063/1.4943410
Abstract
A novel backward wave oscillator (BWO) is presented by utilizing a slotted sine waveguide with a pencil electron beam to produce the high power terahertz wave. The high frequency characteristics including dispersion properties, interaction impedances, and transmission characteristics of the slotted sine waveguide are analyzed in detail. The high frequency system including the output coupler, slow wave structure (SWS), and reflector are designed properly. A 3-D particle-in-cell mode is applied to predict the device performance of the BWO ba