摘要
耦合阻抗是折叠波导慢波结构注-波互作用强度的重要指标。基于公式计算和软件模拟只能计算出冷腔耦合阻抗。本文对320GHz折叠波导振荡器加载电子注之后的'热'耦合阻抗进行了分析,首先提取出折叠波导振荡器中的纵向电场,对电场分量进行滤波,分离出高频电场,再用高频电场计算出'热'耦合阻抗,并与冷腔耦合阻抗进行了对比。
Interaction impedance is an important factor represents the intensity of the beam-wave interaction.The theoretical calculation and software simulation can only solve the cold interaction impedance.In this paper,the hot interaction impedance of a 320 GHz folded waveguide(FW) oscillator with electron beam is investigated.Firstly,the axial electric field in the FW oscillator was calculated.Next,the frequency spectrum of the electric field was filtered.The high-frequency electric field was separated from the whole electric field.Finally,the hot interaction impedance was calculated from the high-frequency electric field,and compared with the cold interaction impedance.
出处
《微波学报》
CSCD
北大核心
2015年第S2期29-31,共3页
Journal of Microwaves
基金
国家自然科学基金(10905032,11275004)
中国科学院知识创新重要方向性项目(YYYJ-1123-5)
中国科学院知识创新面上项目(CXJJ-11-M33)
国家高技术研究计划项目(2012AA8122007A)
关键词
折叠波导
振荡器
“热”耦合阻抗
太赫兹
folded waveguide
oscillator
hot interaction impedance
terahertz
