rfckt.amplifier class

Package: rfckt

RF amplifier


h = rfckt.amplifier
h = rfckt.amplifier('Property1',value1,'Property2',value2,...)


Use the amplifier class to represent RF amplifiers that are characterized by network parameters, noise data, and nonlinearity data.

h = rfckt.amplifier returns an amplifier circuit object whose properties all have their default values.

h = rfckt.amplifier('Property1',value1,'Property2',value2,...) returns a circuit object, h, based on the specified properties. Properties that you do not specify retain their default values.

Use the read method to read the amplifier data from a data file in one of the following formats:

  • Touchstone

  • Agilent® P2D

  • Agilent S2D

  • AMP

See AMP File Format for information about the .amp format.


AnalyzedResultComputed S-parameters, noise figure, OIP3, and group delay values
IntpTypeInterpolation method
NameObject name
NetworkDataNetwork parameter information
NoiseDataNoise information
NonlinearDataNonlinearity information
nPortNumber of ports


analyzeAnalyze circuit object in frequency domain
calculateCalculate specified parameters for circuit object
circleDraw circles on Smith chart
extractExtract array of network parameters from data object
getopDisplay operating conditions
listformatList valid formats for specified circuit object parameter
listparamList valid parameters for specified circuit object
loglogPlot specified circuit object parameters using log-log scale
plotPlot specified circuit object parameters on X-Y plane
plotyyPlot specified object parameters with y-axes on both left and right sides
polarPlot specified circuit object parameters on polar coordinates
readRead RF data from file to new or existing circuit or data object
restoreRestore data to original frequencies
semilogxPlot specified circuit object parameters using log scale for x-axis
semilogyPlot specified circuit object parameters using log scale for x-axis
smithPlot specified circuit object parameters on Smith chart
writeWrite RF data from circuit or data object to file


amp = rfckt.amplifier('IntpType','cubic')

amp =
             Name: 'Amplifier'
             nPort: 2
             AnalyzedResult: [1x1 rfdata.data]
             IntpType: 'Cubic'
             NetworkData: [1x1 rfdata.network]
             NoiseData: [1x1 rfdata.noise]
             NonlinearData: [1x1 rfdata.power]


EIA/IBIS Open Forum, Touchstone File Format Specification, Rev. 1.1, 2002 (http://www.vhdl.org/pub/ibis/connector/touchstone_spec11.pdf).

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