220GHz High Power Terahertz Wave Generation Based on Miniaturized Vacuum Cerenkov Device

摘要：

New micromachining techniques now provide the technology to fabricate vacuum electron devices with dimensions suitable for operation in terahertz region.In this paper,results of theoretical and numerical simulation studies of a MW-class,large diameter terahertz wave generator based on the Cerenkov principle are presented.The device consists of a miniaturized foilless diode as well as an oversized rectangular slow wave structure (SWS) which could support surface wave and provide a strong beam-wave coupling.With the method of Particle-in-cell simulation,we investigated the operating characteristics of a prototype 0.22 THz oscillator.It is found that the steady-state,single-frequency operation in the overmoded situation could be realized by the property of surface wave,and the unique voltage tunable capability proves that the device performs as a forward wave oscillator.

关键词： Overmoded terahertz source Cerenkov device forward surface wave

作者: Hai Zhang Jianguo Wang Changjiang Tong

作者单位: School of Electronics and Information Engineering,Xian Jiaotong University,Xian 710049,China School of Electronics and Information Engineering,Xian Jiaotong University,Xian 710049,China;North Northwest Institute of Nuclear Technology,Xian,710024,China

会议类型: 国际会议

会议名称: 第八届电磁理论、天线及传播国际研讨会

会议地点: 昆明

会议语种:英文

在线出版日期: 2008-11-01（万方平台首次上网日期，不代表论文的发表时间）