The finite element solution of dissipative electromagnetic surface waveguides
Abstract
A finite element method is developed for investigating the propagation of high frequency electromagnetic waves along closed or open (surface) waveguides containing dissipative materials and having a cross section of arbitrary shape. The complex propagation constants and associated complex electromagnetic fields are determined as a function of frequency for possible modes of propagation. The method is verified by applying it to structures of simple shape for which analytical results may be calculated for comparison. Waveguides considered include a waveguide filled with dissipative material, a dissipative dielectric rod, a dielectric coated wire and a conducting wire.
- Publication:
-
International Journal for Numerical Methods in Engineering
- Pub Date:
- 1977
- DOI:
- 10.1002/nme.1620110104
- Bibcode:
- 1977IJNME..11...11M
- Keywords:
-
- Electromagnetic Surface Waves;
- Energy Dissipation;
- Finite Element Method;
- Propagation Modes;
- Waveguides;
- Complex Variables;
- Electromagnetic Fields;
- Frequency Response;
- Matrices (Mathematics);
- Maxwell Equation;
- Physics (General)