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

ZHANG Kai-chun

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

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- Study of Characteristic of Rectangular Coupled-Cavity Slow-Wave Structure for Extended Interaction Oscillator in Terahertz Band
- Acta Electronica Sinica Vol. 39, Issue 3, Pages: 632-635(2011)
- 作者机构：
  
  1. 电子科技大学物理电子学院THz研究中心,四川,成都,610054
  2. 电子科技大学物理电子学院THz研究中心四川成都,610054
- 作者简介：
- 基金信息：
- DOI：
  CLC： TN12
- Published：2011
- 稿件说明：
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ZHANG Kai-chun. Study of Characteristic of Rectangular Coupled-Cavity Slow-Wave Structure for Extended Interaction Oscillator in Terahertz Band[J]. Acta Electronica Sinica, 2011, 39(3): 632-635.
DOI：

ZHANG Kai-chun. Study of Characteristic of Rectangular Coupled-Cavity Slow-Wave Structure for Extended Interaction Oscillator in Terahertz Band[J]. Acta Electronica Sinica, 2011, 39(3): 632-635. DOI：

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.

Abstract

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.

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