Title :
Initial operation of a wideband gyro-TWT amplifier
Author :
Leou, K.C. ; McDermott, D.B. ; Hartemann, F.V. ; Chong, C.K. ; Luhmann, N.C., Jr.
Author_Institution :
Dept. of Electr. Eng., California Univ., Los Angeles, CA, USA
Abstract :
Stable operation of a dielectric-loaded wideband gyro-TWT is experimentally demonstrated. For a 100 kV, 5 A, /spl alpha/=/spl upsisub /spl perpspl upsisub Z/=0.6 electron beam, a peak output power of 55 kW with 11% efficiency, 27 dB saturated gain and an unprecedented constant-drive bandwidth of 11% has been achieved in the X-band frequency proof-of-principle experiment. As predicted by simulation studies, the amplifier´s performance can be further enhanced with improved beam quality.<>
Keywords :
gyrotrons; microwave amplifiers; power amplifiers; travelling-wave-tubes; wideband amplifiers; 10 GHz; 100 kV; 11 percent; 27 dB; 5 A; 55 kW; SHF; X-band frequency; amplifier performance; constant-drive bandwidth; dielectric-loaded configuration; electron beam; stable operation; wideband gyro-TWT amplifier; Bandwidth; Broadband amplifiers; Dielectrics; Electron beams; Frequency; Gain; Operational amplifiers; Power amplifiers; Power generation; Wideband;
Conference_Titel :
Electron Devices Meeting, 1993. IEDM '93. Technical Digest., International
Conference_Location :
Washington, DC, USA
Print_ISBN :
0-7803-1450-6
DOI :
10.1109/IEDM.1993.347334
