An Improved Finite-Element Formulation Using Transverse Electric or Magnetic Fields Components for Electromagnetic Waveguide Mode Analysis

Tuptim ANGKAEW  Masanori MATSUHARA  Nobuaki KUMAGAI  

IEICE TRANSACTIONS (1976-1990)   Vol.E70   No.9   pp.841-846
Publication Date: 1987/09/25
Online ISSN: 
Print ISSN: 0000-0000
Type of Manuscript: PAPER
Category: Electromagnetic Theory

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An improved finite-element formulation using quadratic shape functions is presented. The improvement in accuracy of the method is investigated in comparative to the case of using linear shape functions. As an example of using the quadratic shape functions, an accurate analysis of a microstrip waveguide has been carried out. Good agreement between the finite-element solutions and the other numerical solutions is confirmed. This agreement shows the validity and usefulness of the method.