Title :
A simple finite difference approach using unstructured meshes from FEM mesh generators
Author :
Fernandez, F.A. ; Kulas, Liikasz
Author_Institution :
Dept. of Electron. & Electr. Eng., Univ. Coll. London, UK
Abstract :
This work presents a methodology for the use of finite differences in two-dimensional eigenproblems using a mesh of triangles produced for the finite dement method. Expressions are given for the first and second derivatives at a grid point in terms of nodal values at neighboring points. The method has been tested analysing a waveguide resonator including a dielectric rod.
Keywords :
cavity resonators; dielectric resonators; dielectric waveguides; eigenvalues and eigenfunctions; finite difference methods; mesh generation; FEM; dielectric rod; finite dement method; finite difference approach; grid point; mesh generator; triangle mesh; two-dimensional eigenproblem; unstructured mesh; waveguide resonator; Boundary conditions; Dielectrics; Finite difference methods; Finite element methods; Interpolation; Mesh generation; Physics; Power engineering and energy; Surface fitting; Testing;
Conference_Titel :
Microwaves, Radar and Wireless Communications, 2004. MIKON-2004. 15th International Conference on
Print_ISBN :
83-906662-7-8
DOI :
10.1109/MIKON.2004.1357099
