Product Documentation
Virtuoso Visualization and Analysis XL SKILL Reference
Product Version IC23.1, November 2023

mu

mu(
o_s11Waveform
o_s12Waveform
o_s21Waveform
o_s22Waveform
)
=> o_waveform / nil

Description

Returns the alternative stability factor that indicates the minimum distance between the origin of the unit Smith chart and the load unstable region.

If mu > 1, the two-port network is unconditionally stable.

Arguments

o_s11Waveform

Waveform object representing the S-Parameter s11.

o_s12Waveform

Waveform object representing the S-Parameter s12.

o_s21Waveform

Waveform object representing the S-Parameter s21.

o_s22Waveform

Waveform object representing the S-Parameter s22.

Value Returned

o_waveform

Waveform object indicating the minimum distance between the origin of the unit Smith chart and the load unstable region.

nil

Waveform object cannot be created because of an error.

Examples

The following example creates a Waveform window and returns its window ID.

awvCreatePlotWindow()
=> window:3

The following example opens simulation results of S-Parameters analysis stored in the specified results directory.

openResults("/servers/user/MU/simulation/ampTest/spectre/schematic/psf")
=> "/servers/user/MU/simulation/ampTest/spectre/schematic/psf"

The following example returns the waveform object representing S-Parameter s11.

s11=aaSP(1 1)
=> srrWave:0x37627020

The following example returns the waveform object representing S-Parameter s12.

s12=aaSP(1 2)
=> srrWave:0x37627030

The following example returns the waveform object representing S-Parameter s21.

s21=aaSP(2 1)
=> srrWave:0x37627040

The following example returns the waveform object representing S-Parameter s22.

s22=aaSP(2 2)
=> srrWave:0x37627050

The following example creates a waveform object muWaveform, representing the minimum distance between the origin of the unit Smith chart and the load unstable region.

muWaveform=mu(s11 s12 s21 s22)
=> srrWave:0x37627130

The following example plots the waveform object muWaveform.

awvPlotWaveform(
    awvGetCurrentWindow()
    list(muWaveform)
    ?expr list("mu")
    ?color list("y8")
    ?index list(1)
    ?lineType list("line")
    ?lineStyle list("dash")
    ?lineThickness list("thick")
    ?showSymbols list(t)
    ?dataSymbol list("o")
    )
=> t


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