Title :
Subcell treatment of 90° metal corners in FDTD
Author :
Anderson, J. ; Okoniewski, M. ; Stuchly, S.S.
Author_Institution :
Dept. of Electr. & Comput. Eng., Victoria Univ., BC, Canada
fDate :
12/7/1995 12:00:00 AM
Abstract :
A simple extension to the staircase FDTD algorithm yielding accurate subcell models of flat metal walls and corners is presented. Electric field nodes on the edges of staircase models of perfect electric conductors are replaced by values obtained using interpolation or analytic continuation into the metal. The algorithm is validated by computing the resonant frequencies of cavities
Keywords :
conductors (electric); electric fields; electromagnetic wave scattering; finite difference time-domain analysis; interpolation; 90° metal corners; EM waves; electric conductors; electric field nodes; flat metal walls; interpolation; staircase FDTD algorithm; subcell models;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19951463
