| Full text | |
| Author(s): |
Franco, M. A. R.
;
Passaro, A.
;
Cardoso, J. R.
;
Machado, J. M.
Total Authors: 4
|
| Document type: | Journal article |
| Source: | IEEE Transactions on Magnetics; v. 35, n. 3, p. 1546-1549, May 1999. |
| Field of knowledge: | Engineering - Electrical Engineering |
| Abstract | |
This work presents the application of a scalar finite element formulation for Ex (TE-like) modes in anisotropic planar and channel waveguides with diagonal permittivity tensor, diffused in both transversal directions. This extended formulation considers explicitly both the variations of the refractive index and their spatial derivatives inside of each finite element. Dispersion curves for Ex modes in planar and channel waveguides are shown, and the results compared with solutions obtained by other formulations. (AU) | |