C_NLTYP

	C_NL_TYP Data Item Coplanar Coupled Lines Data Definition Perameters Notes
COPLAN Software Description List of Topics Download Manual

Coplanar Coupled Lines Data Definition

The geometrical dimensions of coupled coplanar lines are defined in the C_NL_TYP data item. The parameter of up to 10 coupled coplanar lines can be specified in this data item, but depending on the number of lines in the corespounding C_XCOUP (X=number of lines), only relevant parameters will be used.

Parameters

Parameter	Discreption	Range of Usage
GW	Width of ground planes	n/2.DL(n=2,3,4,...)
GND_MET	Identification of metal level for the ground planes	1 or 2 (DEFAULT-Foundry)
SG1	Slot between first line and left ground plane	n/2.DL(n=1,2,3,...)
SG2	Slot between last line and right ground plane	n/2.DL(n=1,2,3,...)
W1	Width of line 1	n/2.DL(n=2,3,4,...)
LEVEL1	Identification of metal level for line 1	1 or 2 (DEFAULT-Foundry)
S1_2	Slot between line 1 and line 2	n/2.DL(n=1,2,3,...)
W2	Width of line 2	n/2.DL(n=2,3,4,...)
LEVEL2	Identification of metal level for line 2	1 or 2 (DEFAULT-Foundry)
S2_3	Slot between line 2 and line 3	n/2.DL(n=1,2,3,...).
...	...	...
...	...	...
S9_10	Slot between line 9 and line 10	n/2.DL(n=1,2,3,...)
W10	Width of line 10	n/2.DL(n=2,3,4,...)
LEVEL10	Identification of metal level for line 10	1 or 2 (DEFAULT-Foundry)

Notes

The coupled line parameters (W1 to W10, S1_2 to S9_10, SG1, SG2 and GW) must be chosen in a way that metallization corners lie on the grid (see Range of Usage). However, if the user specify a maximum deviation from grid size ACC (see C_GRID for details), the simulator can adapt the incompatible structure parameters into the grid by changing these parameter slightly (warnings will be reported). For ACC=0 (no deviation from grid) the simulator reports error and the next compatible value will be recommended in the error message. Note that these changes are not considered by automatic layout generation.
Depending on number of lines of related element, some parameters in C_NL_TYP are ignored. For example for 5 coupled coplanar lines (element C_5COUP), only the parameters with an index less than 5 are used (it means W1 to W5, LEVEL1 to LEVEL5 and S1_2 to S4_5). The parameters GW, SG1, SG2 and GND_MET are always used.
In the presented version all center lines must have the same metal level LEVEL.
In present version, GND_MET is used for layout generation only. For the simulation, GND_MET is set equal to LEVEL1.