High efficiency X-band relativistic backward wave oscillator with non-uniform slow wave structures

作     者：吴洋 许州 李正红 马乔生 唐传祥 

作者机构：Department of Engineering Physics Tsinghua University Institute of Applied Electronics China Academy of Engineering Physics Science and Technology on High Power Microwave Laboratory 

出 版 物：《Chinese Physics C》 (中国物理C（英文版）)

年 卷 期：2012年第36卷第8期

页      面：750-752页

核心收录：

学科分类：080904[工学-电磁场与微波技术] 0709[理学-地质学] 0809[工学-电子科学与技术（可授工学、理学学位）] 08[工学] 0708[理学-地球物理学] 0804[工学-仪器科学与技术] 0827[工学-核科学与技术] 0703[理学-化学] 0704[理学-天文学] 0702[理学-物理学] 

主　　题：high power microwave BWO slow wave structure non-uniform 

摘      要：Backward wave oscillators （BWOs） driven by intense relativistic electron beams are very efficient means of producing high-power microwaves. However, the efficiency of conventional BWO is lower than 30%. An X-band oversized BWO with non-uniform slow wave structure is designed to improve RF output characteristics. In particle-in-cell simulation, a high power microwave with a power of 8.0 GW and efficiency of 40% is obtained, compared with that of 30% obtained in a conventional relativistic BWO.