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Ansoft Designer / Ansys Designer 在线帮助文档:
Nexxim Simulator > Nexxim Component Models >
Coplanar Waveguide Elements > Coupled Lines, Asymmetric, Physical Length, Field Solver
Coupled Lines, Asymmetric, Physical Length,
Field Solver
Netlist Form
An asymmetric coupled line, physical length, field solver
instance has the following netlist syntax:
Wxxx n1 n2 0 n3 n4
0 [L=length] N=2 FSmodel=modelname
.MATERIAL material METAL CONDUCTIVITY=conductivity
.MATERIAL dielectric DIELECTRIC ER=er LOSSTANGENT=losstangent
.SHAPE RECT1 RECTANGLE WIDTH=w1 HEIGHT=h
.SHAPE RECT2 RECTANGLE WIDTH=w2 HEIGHT=h
.SHAPE RECT3 RECTANGLE WIDTH='5*(w1+w2)' HEIGHT=h
.LAYERSTACK STACK1
+ LAYER=(dielectric,dlayer)
.MODEL modelname W MODELTYPE=Fieldsolver
+ LAYERSTACK=STACK1
+ CONDUCTOR=(SHAPE=RECT3, ORIGIN=('-gap-5*(w1+w2)',dlayer)
+ MATERIAL=conductor, TYPE=REFERENCE)
+ CONDUCTOR=(SHAPE=RECT1, ORIGIN=(0,dlayer)
+ MATERIAL=conductor, TYPE=SIGNAL)
+ CONDUCTOR=(SHAPE=RECT2, ORIGIN=('w1+sep',dlayer)
+ MATERIAL=conductor, TYPE=SIGNAL)
+ CONDUCTOR=(SHAPE=RECT3, ORIGIN=('w1+sep+w2+gap',
dlayer)
+ MATERIAL=conductor, TYPE=REFERENCE)
n1 and n3
are the names of the input nodes. n2 and n4 are the corresponding
output nodes. The entry N=2
is required.
The entry FSmodel=modelname
identifies the field solver coplanar waveguide model.
Note
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The default values
for the coupled line are the ones assigned when placing a component
from the Ansoft Component library in a schematic. There are NO defaults
for netlist designs; all values must be specified.
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Netlist Example
W3 Port1 Port2 0 net_1911 net_2 0 N=2 L=0.002 FSmodel=CPW1
.MATERIAL COPPER METAL CONDUCTIVITY=58000000
.MATERIAL dielectric1 DIELECTRIC ER=4.4 LOSSTANGENT=0.02
.SHAPE RECT1 RECTANGLE WIDTH=0.001 HEIGHT=0.002
.SHAPE RECT2 RECTANGLE WIDTH=0.002 HEIGHT=0.002
.SHAPE RECT3 RECTANGLE WIDTH='5*(.001+.002)' HEIGHT=0.002
.LAYERSTACK STACK1
+ LAYER=(dielectric1,0.010)
.MODEL CPW1 W MODELTYPE=Fieldsolver
+ LAYERSTACK=STACK1
+ CONDUCTOR=(SHAPE=RECT3, ORIGIN=('-.005-5*(.001+.002)',.010)
+ MATERIAL=conductor, TYPE=REFERENCE)
+ CONDUCTOR=(SHAPE=RECT1, ORIGIN=(0,.010)
+ MATERIAL=conductor, TYPE=SIGNAL)
+ CONDUCTOR=(SHAPE=RECT2, ORIGIN=('.001+.003',.010)
+ MATERIAL=conductor, TYPE=SIGNAL)
+ CONDUCTOR=(SHAPE=RECT3, ORIGIN=('.001+.003+.002+.005', .010)
+ MATERIAL=conductor, TYPE=REFERENCE)
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