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(a) The scheme of a surface wave oscillator with a 2D periodic grating driven by a rectilinear sheet electron beam; (b) a dispersion diagram of a normal surface wave.
Partial wave profiles for a fundamental surface mode of a 2D periodic grating: = 19.6 cm, = 27 cm, mm, and mm.
cst microwave studio simulation of selective excitation of a fundamental mode by initial electromagnetic pulse: (a) field spectrum and (b)-(d) instant spatial distribution of and components of magnetic field in the different cross sections.
Temporal dependencies of the normalized efficiency and the radiation power emitted in the different directions during the onset of a steady-state regime in a 2D surface-wave oscillator: , .
A schematic of the output coupling reflectors, which allow to realize single direction output.
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