ISSN 0869-6632 (Print)
ISSN 2542-1905 (Online)


миллиметровый диапазон

Mathematical modeling of a low-voltage multibeam klystron of millimeter range

The purpose of this work is to determine the efficiency of low-voltage multibeam klystrons in the Ka-frequency range, using an electron-optical klystron-analog system operating in the Кu-range. Methods. The natural frequencies and main dimensions of the resonators were found by solving the Maxwell equations by the finite difference method in the time domain (FDTD) with a rectangular spatio-temporal partition grid.

Математическое моделирование низковольтного многолучевого клистрона миллиметрового диапазона

Цель настоящего исследования -- определить эффективность работы низковольтных многолучевых клистронов в Кa - диапазоне частот, при использовании электронно-оптической системы клистрона-аналога, работающего в Кu - диапазоне.

Methods of output power increasing in orotron with double- row periodic structure in the short-wavelength part of millimeter-wave range

The peculiarities of the orotron double-row electrodynamical system and methods of output power increase were investigated. For the first time in the experimental model of orotron with electrodynamical system consisting of double-row plain periodic structure (DRPS) and sphere-cylindrical focusing mirror the possibility of using wide electron beam in order to output power increase in 140...300 GHz frequency range is demonstrated.

Study of miniaturized low-voltage backward-wave oscillator with a planar slow-wave structure

The development of the terahertz frequency range is one of the priority problems of modern vacuum microwave electronics. For increasing power and efficiency of such devices, it is favorable to use spatially developed slow-wave structures (SWSs) and electron beams with a large cross section. For miniaturization of vacuum-tube devices, reducing of the accelerating voltage becomes a problem of principal importance. In this respect, planar SWSs on dielectric substrates are very promising.