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Regular version of the site

Article

TWT Model on a Metamagnetic Plate

IEEE Transactions on Electron Devices. 2017. Vol. 64. No. 4. P. 1787-1792.

A model of the traveling-wave tube (TWT) that includes a magnetic plate with increased permeability and a metal screen parallel to the plate is considered. The dispersion equation in the presence of a homogeneous electron beam (e-beam) filling the space between the plate and the screen is derived. The method of differentiation of the dispersion equation in the presence of the e-beam is used to calculate coupling and depression coefficients, entering the TWT characteristic (determinantal) equation. The consideredmodel is comparedwith a similarmodel on a dielectric plate and “impedance” comb model. Conclusions concerning the prospects of development of such a “magnetic” TWT are drawn.