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Grounded Coplanar Waveguide Elements >
   Transmission Line, Physical Length       

Transmission Line, Physical Length


 

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Netlist Format

An instance of a grounded coplanar waveguide transmission line, physical length has the following netlist syntax:

Axxx n1 n2 [W=val] [G=val] [P=val]
COMPONENT=gcpwtrl SUBSTRATE=substrate_name

n1 and n2 are the names of the nodes attached to the transmission line. The entry COMPONENT=gcpwtrl identifies the element as a grounded coplanar waveguide transmission line, physical length.

The SUBSTRATE=substrate_name is the grounded coplanar waveguide substrate model name selected for the design (see Selecting a Grounded Coplanar Waveguide Substrate for details).

 


Grounded Coplanar Waveguide Transmission Line, Physical Length Instance Parameters

Parameter

Description

Units

Default

W

Width of center conductor

Meter

1.0e-3

G

Slot gap width

Meter

1.0e-3

P

Physical length

Meter

1.0e-2

Netlist Example

A5 Port1 Port2 W=0.75e-3 G=1.1e-3 P=2e-2 COMPONENT=gcpwtrl SUBSTRATE=GCPW1

where GCPW1, the selected layout technology or substrate type, has a definition such as:

.SUB GCPW1 GCPW(
+ H=0.001524 Er=4.4 TAND=0.02 HU=2.54E-4
+ MET1=1.724137931034483 T1=2.54e-5 RGH=0)

Notes

1. Conformal mapping technique is used in the analysis, in which quasi-TEM behavior is assumed. Dispersion is not included in the model.



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