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   Coaxial Cable, Phase Velocity       

Coaxial Cable, Phase Velocity

 

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Coaxial Cable Netlist Format

The netlist syntax for a coaxial cable, elative phase velocity specified, is:

Axxxx n1 n2 COMPONENT=coax_cable_v
+ V=val P=val Z=val C1=val C2=val RB=val

n1 and n2 are the nodes attached to the cable. The entry COMPONENT=coax_cable_v is required.

 


Coaxial Cable, Phase Velocity Parameters

Parameter

Description

Unit

Default

V

Relative phase velocity

None

1.0

P

Physical length of cable

Meter

0.0127

Z

Characteristic impedance of lossless line

Ohm

50

C1

Conductor loss coefficient

dB/Meter

0.0

C2

Dielectric loss coefficient

dB/Meter

0.0

Coaxial Cable, Dielectric Constant Netlist Example

Acable1 net_34 net_27 V=0.5 P=0.075 Z=50 C1=0.31622
+ C2=1.5e-2 component=coax_cable_v

Notes

1. The one-way attenuation is given by:

 

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where fGHz is the frequency in GHz.

2. Relative phase velocity is defined as:

 

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Where K is the dielectric constant of the cable filling material.



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