[Getdp] ... waveguide problem ...

Christophe Geuzaine cag32 at case.edu
Thu Aug 24 03:00:25 CEST 2006

Matt Koch wrote:
> Hi All,
> I am presently toying with a rectangular waveguide problem, based on 
> your microwave example. However, I want to take it from 2D to 3D and 
> later on add a coax coupler. For now, I am just trying to get a simple 
> WR284 waveguide working in 3D. Rather than modeling the whole waveguide 
> cross section, I should be able to model just one half (or even one 
> quarter) of it, because the other half is symmetrical. And this is where 
> I have trouble. How can I accommodate the symmetry conditions in the 
> general GetDP framework? (In fact, what are the symmetry conditions to 
> begin with?). I am using a frequency solution in the electric field 
> vector E.

Just impose the correct boundary conditions (e.g., zero tangential field 
on the boundary--easy with edge elements: just set e == 0)

> Thanks,
> Matt Koch
> mattkoch at scitex.us
> www.scitex.us
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Christophe Geuzaine
Assistant Professor, Case Western Reserve University, Mathematics

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