XFdtd^® can be used for the analysis of coplanar stripline structures.

Measurements and calculations for several coplanar stripline geometries appeared in the paper "Coplanar Stripline Component for High Frequency Applications" by Goverdhanam, Simons, and Katehi, IEEE MTT Transactions, October 1997.

Here we have applied XFdtd to the bandstop filter of Figure 13 of the paper.  Using XFdtd we have obtained excellent agreement with the measured results shown in Figure 14 of the paper.

In this set of example files we have included comparison plots of the measured results and XFdtd 5.0 calculations. They are shown in Figure 4. Field configurations are shown in Figure 1, Figure 2, and Figure 3.