Wave coupling in sheet- and multiple-beam traveling-wave tubes

Gregory S. Nusinovich, Simon J. Cooke, Moti Botton, and Baruch Levush<br/> To increase the power level of the sources of coherent electromagnetic radiation at frequencies from 100 GHz up to the terahertz range it makes sense to develop devices with a spatially extended interaction space. Sheet-beam and multiple-beam devices belong to the category. In the present paper the … [Phys. Plasmas 16, 063102 (2009)] published Thu Jun 4, 2009.