A local discontinuous galerkin method for numerical computation of waveguide eigenvalue problems in polar coordinates

Siu Lau Ho, Yanpu Zhao, Weinong Fu

Research output: Journal article publicationJournal articleAcademic researchpeer-review

Abstract

A numerical method for symmetric cylindrical and spherical waveguide eigenvalue problems is presented using local discontinuous Galerkin (LDG) method based on polar coordinates. The method has the merit of having high accuracy without geometrical triangulation errors on the curved boundaries of the solution domain. As an illustration, the formulation of the LDG schemes in both cylindrical polar coordinates and spherical polar coordinates are derived and several numerical examples are presented. Numerical results reported demonstrate that the proposed LDG method can be used readily to solve waveguide eigenvalue problems accurately.
Original languageEnglish
Article number6136776
Pages (from-to)255-258
Number of pages4
JournalIEEE Transactions on Magnetics
Volume48
Issue number2
DOIs
Publication statusPublished - 1 Feb 2012

Keywords

  • Eigenvalue
  • local discontinuous Galerkin
  • polar coordinates
  • waveguide

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Electronic, Optical and Magnetic Materials

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