Title :
A low-frequency stable finite-element formulation for modal waveguide analysis
Author :
Baltes, Rolf ; Farle, Ortwin ; Dyczij-Edlinger, Romanus ; Al Ahmar, Joseph
Author_Institution :
Dept. of Phys. & Mechatron., Saarland Univ., Saarbrucken, Germany
Abstract :
This paper presents a low-frequency stable finite element formulation in terms of the electric fiel and the magnetic flu density for the modal analysis of waveguides. In contrast to competing methods, the eigenvalues of the proposed formulation represent propagation coefficient rather than their squares, which allows to resolve solutions close to zero more accurately.
Keywords :
electromagnetic wave propagation; finite element analysis; eigenvalues; electric field; low-frequency stable finite-element formulation; magnetic flu density; modal waveguide analysis; Eigenvalues and eigenfunctions; Electromagnetic waveguides; Equations; Finite element analysis; Iron; Noise measurement; Vegetation;
Conference_Titel :
Computational Electromagnetics (ICCEM), 2015 IEEE International Conference on
DOI :
10.1109/COMPEM.2015.7052656
