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Nexxim Simulator >
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Grounded Coplanar Waveguide Elements >
   Shorted Stub, Physical Length       

Shorted Stub, Physical Length


 

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Netlist Format

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

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

n1 is the name of the node attached to the shorted stub. The entry COMPONENT=gcpw_short_stub_physical identifies the element as a grounded coplanar waveguide shorted stub, physical length.

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

 


Grounded Coplanar Waveguide Shorted Stub, 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-3

Netlist Example

A5 Port1 W=0.75e-3 G=1.1e-3 P=2.5e-3 COMPONENT=gcpw_short_stub_physical 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. The substrate thickness must be larger than (W + 2*G), so that the effect of the lower ground plane is negligible.

2. This model includes the short end length correction.

 



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