Studies on sub-THz traveling-wave tubes with a multiple sheet electron beam
Nikita M. Ryskin, Roman A. Torgashov, Vladimir N. Titov, Andrey E. Ploskih, Andrey V. Starodubov, Andrey G. Rozhnev
Saratov Branch, Institute of Radio Engineering and Electronics RAS, 38 Zelenaya Street
Saratov, 410019 Russia & Saratov State University, Saratov, 410012 Russia
Gennadiy V. Torgashov
Saratov Branch, Institute of Radio Engineering and Electronics RAS, 38 Zelenaya Street
Saratov, 410019 Russia
Igor A. Navotskiy, Valeriy V. Emelianov
RPE “Almaz,” Saratov, 410033 Russia
Abstract
Development of compact, high-power, wideband vacuum-tube sources of high-power sub-THz and THz radiation is very important for many applications, especially for advanced telecommunication and radar systems. Using high-aspect-ratio sheet electron beams is helpful for increase of the output power. For the further increase of the power, using of multiple sheet electron beam has been suggested. In this paper, we present the results of design and development of two traveling-wave tubes (TWT) of such a kind.
The first one is the TWT with multiple-tunnel meander-line SWS and vertically arranged sheet beams The V-band (60-70 GHz) TWT with a 25-30-dB small-signal gain and over 250-W average output power is designed and simulated. The second one is the G-band (220 GHz) TWT with a horizontally arranged multiple sheet beam interacting with a higher-order transverse mode of a staggered dual-grating SWS. An electron gun with three elliptic sheet beams is designed, simulated, and fabricated. Beam transportation in a solenoidal magnetic field is discussed. The results of 3-D PIC modeling of beam-wave interaction are presented.
Speaker
Nikita M. Ryskin
Saratov Branch, Kotelnikov Institute of Radio-Engineering and Electronics RAS & Saratov State University
Россия
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