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Ansoft Designer / Ansys Designer 在线帮助文档：

Nexxim Simulator >
Nexxim Component Models >
Transmission Lines >
   W-Element Transmission Line       

W-Element Transmission Line

W-Element Instance Netlist Syntax

The netlist syntax for a W-element transmission line instance is:

Wxxxx in1 [... inN]] refin out1 [... outN]]refout

N=num_signals L=length RLGCMODEL=modelname

or

Wxxxx in1 [...inN] refin out1 [...outN]] refout

N=num_signals L=length RLGCFILE='filename'

or

Wxxxx in1 [...inN] refin out1 [...outN]] refout

N=num_signals L=length TABLEMODEL=modelname

or

Wxxxx in1 [...inN] refin out1 [...outN]] refout

N=num_signals L=length FSMODEL=modelname

or

Wxxxx in1 [...inN] refin out1 [...outN]] refout

N=num_signals L=length SMODEL=modelname

Nodes in1 through inN are the input signal voltages. refin is the common reference voltage for all inputs. out1 through outN are the output signal voltages corresponding to the inputs. refout is the common reference voltage for all outputs. Parameter N specifies the number of signal lines, not counting the reference. Parameter L is the length of the transmission line in meters.

RLGCMODEL is the name of a W model of type RLGC described in a .MODEL statement.

RLGCFILE is the path to a file in RLGC file syntax. The file path must be enclosed in quote marks. See External Files in the Netlist File Format section for details.

TABLEMODEL is the name of a W model of type TABLE described in a .MODEL statement.

FSMODEL is the name of a W model of type FIELDSOLVER described in a .MODEL statement.

SMODEL is the name of an S Frequency Dependent Data Model described in a .MODEL statement. With SMODEL, the W-element is described by S-parameter data from a Touchstone file. The XLINELENGTH parameter on the S-Model specifies a unit length. Nexxim computes the equivalent RLGC or TABLE model for that unit length from the S-parameter data. The parameter L on the W-Element specifies the actual length of transmission line to simulate using the calculated model.

One of the types of model—RLGCMODEL, RLGCFILE, TABLEMODEL, FSMODEL, or SMODEL —must be specified.

W-Element Instance Netlist Examples

W1 1 2 0

+ 4 5 0

+ N=2 L=1 RLGCMODEL=test2d_w

W1

+ 1 2 3

+ 4 5 6

+ N=2 L=1 TABLEMODEL=test2d_tabw

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