Computational Simulation for Helical Slow-Wave Circuit by Using CST MWS Code

HAN Bo; SU Xiao-bao

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Computational Simulation for Helical Slow-Wave Circuit by Using CST MWS Code

更新时间：2025-07-16

- Computational Simulation for Helical Slow-Wave Circuit by Using CST MWS Code
- Acta Electronica Sinica Vol. 34, Issue 9, Pages: 1711-1716(2006)
- 作者机构：
  
  1. 中国科学院电子学研究所微波器件中心,北京,100080
  2. 中国科学院研究生院,北京,100039
  3. 中国科学院电子学研究所微波器件中心北京,100080
  4. 中国科学院研究生院北京,100039
- 作者简介：
- 基金信息：
- DOI：
  CLC： TN124
- Published Online：25 September 2006，
  
  Published：2006
- 稿件说明：
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HAN Bo, SU Xiao-bao. Computational Simulation for Helical Slow-Wave Circuit by Using CST MWS Code[J]. Acta Electronica Sinica, 2006, 34(9): 1711-1716.
DOI：

HAN Bo, SU Xiao-bao. Computational Simulation for Helical Slow-Wave Circuit by Using CST MWS Code[J]. Acta Electronica Sinica, 2006, 34(9): 1711-1716. DOI：

摘要

本文介绍了用CST MWS软件的周期边界条件计算行波管螺旋线慢波结构的色散和耦合阻抗等冷测特性的方法

用采取螺旋带模型的理论分析计算结果和实验测试值加以验证

取得了比较一致的结果;并应用这种MWS的模拟方法和螺旋带模型的计算方法分析了具有扇形和T形夹持杆慢波结构的冷测特性

结果表明

相速和耦合阻抗都随着扇形角度的增大而减小

随着T形窄端宽度的增加而减小

随着T形窄端高度的增加而增大.

Abstract

The periodic boundary condition in the three-dimensional (3-D) electromagnetic computer code CST MWS is used to the computational simulation for high-frequency characteristics of helical slow-wave circuit.Validated by the analytical method of tape helix model and the experimental data

the agreement is excellent.The computer code CST MWS and tape helix model are also used in this analysis to determine the effect on dispersion and on-axis interaction impedance of the wedge support rod and T-shaped support rod geometry parameter variations.The results show that the phase velocity and interaction impedance will decrease across the bandwidth while the angle of the wedge support rod and the width of T-shape support rod’s narrow end increase

and increase while the height of T-shaped support rod’s narrow part is longer.

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