|Coplanar Transmission Line
C_LIN represents a single coplanar line. The line dimensions are defined using the data item addressed by C_LTYP. L is the line length. The substrate data are defined in data item addressed by C_SUB.
|L||Line length (stretchable)|
|C_LTYP||ID of data items with the geometrical dimensions of the coplanar transmission line|
|C_SUB||ID of coplanar substrate definition|
|C_GRID||ID of simulation control data|
|TEMP||ID of element temperature definition used for noise computation|
|For the modeling of the C_LIN element, a distributive equivalent circuit is used and the model parameter are derived from quasi-static FD-calculations. The DC and RF losses (represented by R´) due to the skin effect are calculated using the surface current distribution on the conductors. The dielectric loss of the substrate material represented by G´ (see TAND in C_SUB) is also taken into account.|
Different metallization levels can be used for the center line and the ground planes of a coplanar line. The layout of C_LIN is stretchable. Use menu point (Edit - Trace/Transmission Line - Stretch Transmission Line) in layout window in order to stretch the line. If the parameter GW_DEF in C_PROCES is set to a positive non-zero value, this value is used as ground width for layout generation (not for simulation).