Title :
Initial hot-tests on a 28 GHz five-cavity gyroklystron amplifier
Author :
Choi, Jin J. ; Kim, H.J. ; Na, Y.H. ; Kim, W.C. ; Kwon, M. ; Temkin, R.
Author_Institution :
Sch. of Electron. Eng., Kwangwoon Univ., Seoul, South Korea
Abstract :
Experiments on a 28 GHz, five cavity gyroklystron amplifier are underway. Initial hot tests show that the stable amplified radiation produces a peak power of 50 kW at 27.85 GHz. A strong oscillation in the output cavity with power exceeding 200 kW is measured near the amplifier operating point. A careful magnetic field tuning near 10 kG is currently underway to optimize the amplifier performance. Experimental results and comparison with numerical simulation results are presented.
Keywords :
electron tube testing; gyrotrons; klystrons; microwave amplifiers; 10 kG; 27.85 GHz; 28 GHz; 50 kW; amplifier operating point; cathode current; collector current; five cavity gyroklystron amplifier; initial hot tests; input drive frequency; magnetic field tuning; output cavity; stable amplified radiation; strong oscillation; Electron devices; Frequency; Klystrons; Magnetic field measurement; Nuclear and plasma sciences; Power amplifiers; Power engineering and energy; Power measurement; Radiofrequency amplifiers; Testing;
Conference_Titel :
Vacuum Electronics Conference, 2002. IVEC 2002. Third IEEE International
Print_ISBN :
0-7803-7256-5
DOI :
10.1109/IVELEC.2002.999426
