中国物理B ›› 2009, Vol. 18 ›› Issue (10): 4281-4286.doi: 10.1088/1674-1056/18/10/031
王冬, 陈代兵, 秦奋, 范植开
Wang Dong(王冬)†, Chen Dai-Bing(陈代兵), Qin Fen(秦奋), and Fan Zhi-Kai(范植开)
摘要: This paper puts forward a novel magnetically insulated transmission line oscillator (MILO) for the first time which takes a modified HEM11 mode as its main interaction mode. The excitation of the oscillation mode is made possible by carefully adjusting the arrangements of each resonant cavity in a two-dimensional (2-D) slow wave structure. The high frequency characteristics are analyzed and a PIC simulation is carried out; the detailed results are discussed to get a better understanding of this new MILO. Employing an electron beam of about 441~kV and 39.7~kA, it finds that the modified HEM11 mode MILO generates a high power microwave output of about 1.47~GW at 1.45~GHz. The power conversion efficiency is about 8.4% and the generated microwave is in a TE11-like circularly polarized mode; its polarization direction is decided by the rotation direction of the SWS.
中图分类号: (Waveguides, transmission lines, striplines)