A MAGNETICALLY INSULATED TRANSMISSION LINE OSCILLATOR WORKING AT HEM11 MODE
A novel magnetically insulated transmission line oscillator (MILO) which takes HEM11 mode as its main interaction mode is put forward for the first time in this paper. The excitation of HEM11 mode is made possible by carefully adjusting the structure parameters of each resonant cavity. The high frequency characteristics are analyzed. The special feature of such a device is that, in the slow-wave-structure (SWS) region, the interaction mode is HEM11 mode which is a TM-like one that could interact with electron beams effectively; and in the coaxial output region, the microwave mode is TE11 mode which has a favorable field density pattern to be directly radiated. An experiment is carried out on the HEM11 mode MILO and the detailed experiment results are discussed in this paper. Employing an electron beam of about 480 kV and 39 kA, HEM11 mode MILO generates a high power microwave output of about 1.2 GW with 40 ns pulse duration at 1.98 GHz. The power conversion efficiency is about 6.5％ and the generated microwave mode is TE11 mode.
High power microwave (HPM) magnetically insulated transmission line oscillator (MILO) asymmetric mode HEM11 mode
Dong Wang Dai-bing Chen Zhi-kai Fan
Institute of applied electronics,CAEP,P.O.Box919-1015,Sichuan,621900,P.R.China
国际会议
17th International Conference on High-Power Particle Beams(第17届高功率离子束国际会议)
西安
英文
692-695
2008-07-06（万方平台首次上网日期，不代表论文的发表时间）