Title :
Ultraminiature Pulsed Periodic Generator of Powerful Microwave Pulses, Based on Gas Discharge in Hollow Cathode
Author :
Dubinov, Alexander E. ; L´vov, Igor L. ; Sadovoy, Sergey A. ; Selemir, Victor D. ; Vyalykh, Dmitry V. ; Zhdanov, Victor S.
Author_Institution :
Russian Fed. Nucl. Center - All-Russian Sci. & Res. Inst. of Exp. Phys. (RFNC-VNIIEF), Sarov, Russia
Abstract :
An ultraminiature pulsed periodic generator of powerful microwave pulses based on gas discharge, involving a hollow cathode, is developed and tested. The hollow cathode is presented by a cylindrical tube of 15-mm diameter and 15-mm height. The cavity was filled with air under 0.2-torr pressure. The periodic sequence of high-voltage pulses of 3.5-kV amplitude was sent onto gas-discharge gap. Coherent microwave pulses, featuring ~ 1-MW power and ~ 200-ns duration, were generated in a chamber from the frequency band Lp. The pulse repetition rate of 1 kHz was achieved in pulsed periodic mode with no noticeable degradation of microwave pulses.
Keywords :
cathodes; discharges (electric); microwave generation; microwave tubes; coherent microwave pulse; cylindrical tube; gas discharge; gas-discharge gap; hollow cathode; pulsed periodic mode; size 15 mm; ultraminiature pulsed periodic generator; voltage 3.5 kV; Cathodes; Discharges (electric); Generators; Microwave FET integrated circuits; Microwave circuits; Microwave oscillators; Physics; Hollow cathode; microwave pulse; pulsed periodic mode; the band $hbox{L}_{rm p}$;
Journal_Title :
Plasma Science, IEEE Transactions on
DOI :
10.1109/TPS.2012.2201754
