Title :
Efficient schemes of millimeter wave FEM-oscillator and amplifier
Author :
Ginzburg, N.S. ; Denisov, G.G. ; Kaminsky, A.A. ; Kaminsky, A.K. ; Peskov, N.Yu. ; Sedykh, S.N. ; Sergeev, A.P. ; Sergeev, A.S.
Author_Institution :
Inst. of Appl. Phys., Acad. of Sci., Nizhny Novgorod, Russia
Abstract :
The paper is devoted to progress in the experimental study of FEM with a guide magnetic field based on a linear induction accelerator (1 MeV/200 A/200 ns). In a Bragg FEM-oscillator a mode pattern in the resonators for different Q-factors was studied both theoretically and experimentally. In accordance with theoretical predictions single-frequency operation in a low Q-factor resonator and multifrequency operation in a high Q-factor resonator were observed. Under an optimal resonator configuration at a frequency of 31 GHz a single-mode generation with a power of 37 MW and an efficiency of 26% was obtained. A new wideband scheme of RF-input based on the effect of microwave beam multiplication was studied in the FEM-amplifier experiment. At the present stage at a frequency of 36.4 GHz amplification of 20 dB was obtained
Keywords :
Q-factor; linear accelerators; millimetre wave oscillators; 31 GHz; 36.4 GHz; 37 MW; Q-factor; amplifier; efficiency; high Q-factor; linear induction accelerator; low Q-factor; millimeter wave FEM-oscillator; multifrequency operation; power; single-frequency operation; single-mode; Accelerator magnets; Electron beams; Frequency; Magnetic fields; Optical reflection; Oscillators; Physics; Power generation; Q factor; Undulators;
Conference_Titel :
High-Power Particle Beams, 1998. BEAMS '98. Proceedings of the 12th International Conference on
Conference_Location :
Haifa
Print_ISBN :
0-7803-4287-9
DOI :
10.1109/BEAMS.1998.816981
