Title :
Demonstration of a high power W-band gyrotwystron amplifier
Author :
Blank, Marita ; Danly, B.G. ; Levush, Baruch
Author_Institution :
Naval Res. Lab., Washington, DC, USA
Abstract :
Summary form only given. The Naval Research Laboratory is currently investigating gyro-amplifiers as high power, broadband sources for millimeter wave radars. A four stage W-band gyrotwystron amplifier experiment is now underway at NRL. The gyrotwystron has produced 50.4 kW peak output power at 17.7% electronic efficiency in the TE/sub 01/ mode for a 57 kV, 5 A electron beam. The measured full-width, half-maximum (FWHM) bandwidth is 925 MHz, a significant improvement over the bandwidth of previously demonstrated W-band gyroklystron amplifiers. The experimental results, which represent a record power-bandwidth product at this frequency, are in good agreement with theoretical predictions.
Keywords :
gyrotrons; millimetre wave power amplifiers; plasma devices; relativistic electron beam tubes; 17.7 percent; 5 A; 50.4 kW; 57 kV; 925 MHz; TE/sub 01/ mode; electron beam; four stage W-band gyrotwystron amplifier; full-width half-maximum bandwidth; gyroamplifiers; high power W-band gyrotwystron amplifier; high power broadband sources; millimeter wave radars; Bandwidth; Broadband amplifiers; Electron beams; High power amplifiers; Laboratories; Millimeter wave measurements; Millimeter wave radar; Power amplifiers; Power generation; Tellurium;
Conference_Titel :
Plasma Science, 1998. 25th Anniversary. IEEE Conference Record - Abstracts. 1998 IEEE International on
Conference_Location :
Raleigh, NC, USA
Print_ISBN :
0-7803-4792-7
DOI :
10.1109/PLASMA.1998.677773
