bruns@gdfidl.de

The GdfidL Electromagnetic Field simulator

GdfidL computes electromagnetic fields in 3D-structures using parallel or scalar computers.

GdfidL computes

Time dependent fields in lossfree or lossy structures. The fields may be excited by
- port modes,
- relativistic line charges.
Resonant fields in lossfree or lossy structures.

The postprocessor computes from these results eg.

Scattering parameters,
wake potentials,
Q-values and shunt impedances.

Features

GdfidL computes only in the field carrying parts of the computational volume. For eg. waveguide systems, this makes GdfidL about three to ten times faster than other Finite Difference based programs.
GdfidL uses generalised diagonal fillings to approximate the material distribution. This reduces eg. the frequency error by about a factor of ten.
For eigenvalue computations, GdfidL allows periodic boundary conditions in all three cartesian directions simultaneously.
GdfidL runs on parallel and serial computers. GdfidL also runs on clusters of workstations.

Availability

GdfidL is available for almost every hardware platform.
GdfidL only runs on UNIX-like operating systems.

AIX on IBM-Power.
Linux or Solaris on AMD64, and whatever Intel calls the architecture now (I64).
Tru64 or Linux on Alpha.
PHASED OUT: HP-UX on PA-RISC. Last Version of 199x.
PHASED OUT: IRIX on SGI-MIPS. Last Version 199x.
PHASED OUT: Linux on IA64, Itanium. Dead. Last version of 2006.
PHASED OUT: Solaris on SPARC. Dead. Last version 200x.
and more. Whatever you want,

Price

The price for a one year license for the serial version of GdfidL (including support) starts at 10.000 Euro for Linux-on-AMD64 computers.
The price for a one year license for the parallel versions starts at 20.000 Euro for Linux-on-AMD64 clusters.
Access to a powerful cluster where GdfidL is installed on costs 9.000 Euro per year.

Powerful Syntax Material Approximation Absorbing Boundary Conditions Periodic Boundary Conditions

bruns@gdfidl.de

The syntax description, with some examples, is here.

The tutorial is here.

An example how to model a complicated cavity.

A paper describing the material approximation and the periodic boundary conditions is here (pdf), or here (ps).

Some examples of the usage are here.

The Impressum is here.