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Nexxim Simulator >
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Microstrip Elements >
   Transmission Line, Electrical Length       

Transmission Line, Electrical Length

 

 

Netlist Format

An instance of a transmission line with electrical length has the following netlist syntax:

Axxx n1 n2 W=val E=val F=val COMPONENT=TRL_E SUBSTRATE=substrate_name

n1 and n2 are the names of the nodes attached to the transmission line. The entry COMPONENT=TRL_E identifies the element as a transmission line with electrical length.

The entry SUBSTRATE=substrate_name identifies the microstrip substrate model name selected for the design (see Selecting a Microstrip Substrate). See the Microstrip (MS) Substrate for information on this substrate type.

 


Transmission Line with Electrical Length,
Instance Parameters

Parameter

Description

Units

Default

W

Conductor width

Meter

0.001

E

Electrical length

Degree

45

F

Reference frequency for E

Hz

1e9

Netlist Example

A7 Port1 Port2 W=0.001 E=45 F=5000000000
+ COMPONENT=TRL_E SUBSTRATE=FR4

where FR4, the selected layout technology or substrate type, has a definition such as:

.SUB FR4 MS( H=7.6200e-004 Er=4.4 TAND=0.02 TANM=0
+ MSat=0 MRem=0 HU=0.00508 MET1=1.72413793103448
+ T1=1.7145e-005 RGH=0mil)

Notes

1. [Microstrip] The following conditions should be satisfied: 0.01 £ W/H £ 10, ER < 18, T £ W, and T £ H/2.

 

 



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