Title :
Improvements in GdfidL
Author_Institution :
Tech. Univ. Berlin, Germany
Abstract :
The finite difference code GdfidL computes 3D electromagnetic fields. It has been rewritten to implement better material discretization with generalized diagonal fillings, modern absorbing boundary conditions in time domain and periodic boundary conditions in x- y- and z-direction when computing eigenvalues. The generalized diagonal material fillings reduce the frequency error caused by the boundary approximation by a factor of 10. The modern absorbing boundary conditions work for arbitrarily large port dimensions without the need to consider any portmodes
Keywords :
eigenvalues and eigenfunctions; electromagnetic wave absorption; finite difference methods; physics computing; 3D electromagnetic fields; GdfidL; absorbing boundary conditions; boundary approximation; finite difference code; frequency error; generalized diagonal fillings; material discretization; periodic boundary conditions; time domain; Boundary conditions; Differential equations; Eigenvalues and eigenfunctions; Filling; Finite difference methods; Frequency; Geometry; Magnetic fields; Magnetic materials; Resonance;
Conference_Titel :
Particle Accelerator Conference, 1999. Proceedings of the 1999
Conference_Location :
New York, NY
Print_ISBN :
0-7803-5573-3
DOI :
10.1109/PAC.1999.792931
