太赫兹扩展互作用振荡器的矩形耦合腔特性研究  

Study of Characteristic of Rectangular Coupled-Cavity Slow-Wave Structure for Extended Interaction Oscillator in Terahertz Band

作　　者：张开春[1] 

机构地区：[1]电子科技大学物理电子学院THz研究中心,四川成都610054

出　　处：《电子学报》2011年第3期632-635,共4页Acta Electronica Sinica

基　　金：国家973重点基础研究发展规划(No.2007CB310401);中央高校基本科研业务费专项资金(No.ZYGX2009J045)

摘　　要：本文选用矩形耦合腔作为太赫兹扩展互作用振荡器(EIO)的慢波结构,鉴于其结构的复杂性,采用等效电路方法计算其色散.详细研究了腔体和耦合槽的电路参数,计算了不同结构尺寸、圆形和矩形电子通道的0.12THz和0.225THz慢波结构的色散特性.并采用专业电磁软件,研究了不同结构参数下的色散特性、耦合阻抗和特征阻抗.通过对色散特性的比较,理论结果与电磁软件模拟结果相吻合.A rectangular coupled-cavity was proposed as the slow-wave structure（SWS） for the extended interaction oscillator（EIO） in terahertz（THz） wave.Due to the complexity of the SWS,the equivalent circuit method（ECM） was adopted to calculate the dispersion of the SWS.The circuit parameters of the cavity and the coupling slot have been studied in detail.The dispersion of the SWS,which includes different dimension with a round or a rectangular beam tunnel at the frequency 0.12THz and 0.225THz,was theoretically calculated.Specified electromagnetic software was utilized to simulate the dispersion,the coupling impedance and the characteristic impedance of the SWS.By comparison,the theoretical results of the dispersion agree well with the simulation results.

关 键 词：太赫兹 矩形耦合腔 慢波结构 等效电路方法 色散特性 

分 类 号：TN12[电子电信—物理电子学]