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We have studied the electromagnetic properties of bi-helix slow-wave structures (SWSs) with added azimuthal conductors in the form of: 1) metal rings connecting the helices and 2) an azimuthally conducting screen formed by metal rings with and without capacitive gaps. We show that these added azimuthal conductors suppress backward-wave oscillation and enable stable high-voltage, high-power operation...
We have studied the electromagnetic properties of a bi-helix slow wave structure surrounded by an azimuthally conducting screen formed by metal rings with and without capacitive gaps. The dependence of phase velocity on frequency and on the geometric parameters of the rings were measured on prototypes and analyzed. Novel designs of the bi-helix SWSs with circular metallization on the diaphragm supports...
Equivalent parameters of the helical SWS in the anisotropically conducting cylinders and their dependence on the operational frequency had been considered in this paper. The possibility of the independent control of the interaction impedance and dispersion characteristic is the main issue of the provided analysis. Solutions of the wave equations in the anisotropically conducting sheet approximation...
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