›› 2012, Vol. 25 ›› Issue (2): 16-.

• 论文 • 上一篇    下一篇

高阶矢量基函数在腔体本征值问题中的应用

孙佳佳,吴刚   

  1. (西安电子科技大学 电子工程学院,陕西 西安 710071)
  • 出版日期:2012-02-15 发布日期:2012-02-29
  • 作者简介:孙佳佳(1986—),男,硕士研究生。研究方向:计算电磁学,电磁场仿真,微波器件等。吴刚(1986—),男,硕士研究生。研究方向:计算电磁学,微波器件等。

The Application of Higher-Order Hierarchical Basis Functions to Solve the Eigenvalue Problems of Resonant Cavities

 SUN Jia-Jia, WU Gang   

  1. (School of Electronic Engineering,Xidian University,Xi'an 710071,China)
  • Online:2012-02-15 Published:2012-02-29

摘要:

基于四面体有限单元,采用高阶叠层矢量基函数分析腔体本征值问题,通过若干数值算例验证了在相同计算精度指标下,采用高阶基可以使用尺寸更大的网格,降低未知量个数,提高计算效率;并且通过加密网格,高阶基能够更快地收敛到真解。

关键词: 有限元, 高阶基, 腔体, 本征值

Abstract:

In this paper we analyze the eigenvalue problems of resonant cavities using higher-order hierarchical vector basis functions based on tetrahedral finite elements.The numerical results of several examples show that using the higher-order basis functions can reduce unknowns by larger discretization size to obtain the same accuracy with the lower-order basis functions,and the numerical solution can approach the analytical solution more quickly with mesh refinement.

Key words: finite elements;higher-order basis functions;cavities;eigenvalue

中图分类号: 

  • TM15