Title :
Particle-in-cell code simulations and experiments of a rising-sun magnetron oscillator
Author :
Kim, H.J. ; Shin, J.U. ; Choi, Jin J.
Author_Institution :
Sch. of Electron. Eng., Kwangwoon Univ., Seoul, South Korea
Abstract :
A high power rising-sun magnetron oscillator is designed to operate at 9.5 GHz. A time evolved electron flow exhibits nine space charge spokes in the MAGIC3D PIC simulations, which confirms the π-mode oscillation in the eighteen vanes rising-sun magnetron. We investigated five operating points for π-mode by the use of the PIC code. Simulations show that the highest efficiency is 74% at 36 W, 6.5 kG corresponding to a magnetron power of 530 kW where the oscillation frequency and anode current are 9.502 GHz and 20 A, respectively. Comparison of MAGIC3D simulation results and experiments is presented.
Keywords :
magnetrons; microwave oscillators; space charge; 530 kW; 9.5 GHz; MAGIC3D PIC simulations; high power magnetron oscillator; operating points; pi-mode oscillation; rising-sun magnetron oscillator; space charge spokes; time evolved electron flow; Anodes; Blades; Design engineering; Electron devices; Frequency; Magnetic devices; Magnetic fields; Oscillators; Power engineering and energy; Space charge;
Conference_Titel :
Vacuum Electronics Conference, 2002. IVEC 2002. Third IEEE International
Print_ISBN :
0-7803-7256-5
DOI :
10.1109/IVELEC.2002.999341
