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Simulation Investigation of S-Band Higher-Order-Mode Depressed MILO

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4 Author(s)
Fen Qin ; Laboratory of High Power Microwave Technology, Institute of Applied Electronics, China Academy of Engineering Physics, Mianyang, China ; Dong Wang ; Dai-Bing Chen ; Jie Wen

An S-band magnetically insulated line oscillator (MILO) tube working at 2.4 GHz is presented based on an existing L-band ladder cathode MILO tube (working at 1.2 GHz) where all dimensions are divided by a factor of 2. Higher-order-mode depressed MILO structure is introduced to depress generation of higher order modes in this tube. The dispersion curve is numerically calculated, and 3-D particle-in-cell simulations are carried out. Employing an electron beam of 830 kV, a transverse electromagnetic mode (TEM) high-power microwave with output power of 6.2 GW and a frequency of 2.48 GHz is obtained.

Published in:

IEEE Transactions on Plasma Science  (Volume:40 ,  Issue: 7 )