Title :
MAGIC3D simulation of an ultra-compact, highly efficient, and high-power reltron tube
Author :
Kim, H.J. ; Choi, J.J. ; Lee, B.J. ; Kim, J.Y. ; Lee, J.C.
Author_Institution :
Dept. of Wireless Commun. Eng., Kwangwoon Univ., Seoul, South Korea
fDate :
8/1/2009 12:00:00 AM
Abstract :
In this paper, we use a three dimensional particle-in-cell (PIC) code, MAGIC3D, to investigate the operating characteristics of an ultra-compact, high power reltron tube with self-modulation beam and post-acceleration of modulated beam. The simulation model is a full 3D model because the reltron is intrinsically a three-dimensional problem due to the asymmetrical geometry of the modulating cavity. In the reltron, the mode of operation is ¿/2-mode, providing the means to modulate an electron beam in short distances. Simulations show that ultra-compact reltron with a beam voltage of 120 kV and an acceleration voltage of 800 kV generates 38.3 MW high power microwave at 2.887 GHz with an electronic efficiency of 52.7%.
Keywords :
electrical engineering computing; klystrons; MAGIC3D simulation; asymmetrical geometry; frequency 2.887 GHz; power 38.3 MW; reltron tube; self-modulation beam; three dimensional particle-in-cell code; voltage 120 kV; voltage 800 kV; Acceleration; Electron beams; Geometry; High power microwave generation; Microwave generation; Modulation coding; Optical modulation; Particle beams; Solid modeling; Voltage; Reltron, modulating cavity, MAGIC3D.;
Journal_Title :
Dielectrics and Electrical Insulation, IEEE Transactions on
DOI :
10.1109/TDEI.2009.5211840
