List of Figures

1. A simple brick
2. A simple gccylinder, with its axis directing towards (-0.4, 1.5, 0.4).
3. A chain of simple circular cylinders. Each cylinder has its axis pointing in a different direction.
4. A simple ggcylinder
5. A simple ggcylinder, with a pitch.
6. A simple ggcylinder, with different growthfactors for x and y.
7. A simple ggcylinder, with zprimedirection different from the footprints plane normal.
8. The discretisation of a corrugated circular waveguide, specified as a ggcylinder with zxscale.
9. A simple gbor.
10. The intersection of two circular cylinders, where whichcells and taboo were specified.
11. A complicated gbor
12. Two complicated gbors (glasses).
13. A discretisation of a brain, imported as a STL-file.
14. A discretisation of a Wagner bust, described as a STL-file.
15. Discretisation of some bricks, translated and rotated.
16. A twisted waveguide. Only the material boundaries behind the plane y=0 are shown.
17. A twisted waveguide. The plot is rotated slightly around the y-axis.
18. Above: Resulting plot, with field arrows, and material patches coloured according to the field strength at material boundaries. Below: The same plot, without field arrows.
19. The time dependent electric field at an early time.
20. The computed reflection when a window has been applied.
21. A computed transmission when a window has been applied.
22. A computed transmission when a window has been applied.
23. A computed transmission when a window has been applied.
24. The computed reflection when no window has been applied.
25. A computed transmission when no window has been applied.
26. A computed transmission when no window has been applied.
27. A computed transmission when no window has been applied.
28. The sums of the squares of the computes scattering parameters when a window has been applied.
29. The sums of the squares of the computes scattering parameters when no window has been applied.
30. This volumeplot shows the discretised geometry. Although gd1 allows an inhomogeneous mesh even when a particle beam is present, this is not explicitely used here.
31. The z-component of the wakepotential at the (x,y)-coordinate where the exciting line charge was traveling. For reference, the shape of the exciting charge is plotted as well.
32. The two transverse components of the wakepotential at the (x,y)-coordinate where the exciting line charge was traveling. For reference, the shape of the exciting charge is plotted as well. The transverse wakepotentials are computed as the average of the transverse wakepotentials nearest to the coordinate where the line charge was traveling. The y-component of the wakepotential vanishes, as it should be.
33. This volumeplot shows the discretised geometry.
34. The data of the excitation. Above: The time history of the amplitude that was excited in the port with name 'Input'. Below: The spectrum of this excitation.
35. The data of the scattered mode '1' in the port with name 'Input'. Above: The time history of its amplitude. This was computed by gd1. Below: The scattering parameter as amplitude plot, and in a smith-chart. These data are computed by gd1.pp by fouriertransforming the time history of this mode, and dividing by the spectrum of the excitation.
36. The data of the scattered mode '1' in the port with name 'Output'. Above: The time history of its amplitude. This was computed by gd1. Below: The scattering parameter as amplitude plot, and in a smith-chart. These data are computed by gd1.pp by fouriertransforming the time history of this mode, and dividing by the spectrum of the excitation.
37. The sum of the squared processed scattering parameters. Since the structure is loss free, this sum should ideally be identical to '1' above the cut-off frequency. The sum of the computed parameters is only very near the cut-off frequency of the modes unequal '1'.
38. The four parts of the Brillouin diagram
39. The four parts of the Brillouin diagram combined.