Nanosecond Hybrid Modulator for the Fast-Repetitive Driving of X-Band, Gigawatt-Power Microwave Source

Author

Luybutin, Sergei K. ; Rukin, Sergei N. ; Sharypov, Konstantin A. ; Shpak, Valery G. ; Shunailov, Sergei A. ; Slovikovsky, Boris G. ; Ulmaskulov, Marat R. ; Yalandin, Michael I. ; Korovin, Sergei D. ; Rostov, Vladislav V.

Author_Institution

Ural Div., Russian Acad. of Sci., Ekaterinburg, Russia

Volume

33

Issue

4

fYear

2005

Firstpage

1220

Lastpage

1225

Abstract

Results of tests of a fast-repetitive nanosecond modulator with a peak output power of 3 GW are presented. It comprises of a type S-5N charging driver, a power compressor based on a pulsed forming line, and a gas spark gap. The modulator has been designed for the formation of high-current electron beams and high-power microwave generation in a pulsed-repetitive regime. Excitation of 10-GHz microwave pulses $\\sim1$ ns long in a relativistic backward-wave oscillator with an elongated periodic slow-wave system has been studied. Optimization of the regime of interaction between electromagnetic fields and particles provided an average power of microwave radiation in the burst-repetitive mode (1 s; $\\sim700$ Hz) of up to 2.5 kW at a focusing magnetic field ( $\\sim0.6$ T) below the cyclotron resonance region. The peak output power of the oscillator exceeded 2 GW.

Keywords

backward wave oscillators; microwave generation; modulators; relativistic electron beam tubes; slow wave structures; spark gaps; 1 s; 10 GHz; 2.5 kW; 3 GW; S-5N charging driver; X-band gigawatt-power microwave source; burst-repetitive mode; cyclotron resonance region; elongated periodic slow-wave system; gas spark gap; high-current electron beams; microwave pulse excitation; microwave radiation; nanosecond hybrid modulator; particle-electromagnetic field interaction; power compressor; pulsed forming line; relativistic backward-wave oscillator; Electromagnetic fields; Electron beams; Microwave generation; Microwave oscillators; Optical modulation; Power generation; Pulse compression methods; Pulse modulation; Sparks; Testing; Backward wave oscillator; electron beam; semiconductor opening switch; spark gap;

fLanguage

English

Journal_Title

Plasma Science, IEEE Transactions on

Publisher

ieee

ISSN

0093-3813

Type

jour

DOI

10.1109/TPS.2005.852359

Filename

1495561