microwave and RF transmission line calculator

 Transcalc is an analysis and synthesis tool for calculating the
 electrical and physical properties of different kinds of RF and
 microwave transmission lines.
 .
 Transcalc is built using the GIMP toolkit (GTK+) for its GUI
 interface. For each type of transmission line, using dialog boxes,
 you can enter values for the various parameters, and either calculate
 its electrical properties (analyze), or use the given electrical
 requirements to synthesize physical parameters of the required
 transmission line.
 .
 Available transmission lines (this list will expand with subsequent
 releases): Microstrip, Rectangular Waveguide.