rfckt.lcbandstoppi

Bandstop pi filter

Description

Use the lcbandstoppi class to represent a bandstop pi filter as a network of inductors and capacitors.

The LC bandstop pi network object is a 2-port network as shown in the following circuit diagram.

In the diagram, [L1, L2, L3, L4, ...] is the value of the 'L' object property, and [C1, C2, C3, C4, ...] is the value of the 'C' object property.

Creation

Description

example

h = rfckt.lcbandstoppi returns an LC bandstop pi network object whose properties all have their default values.

h = rfckt.lcbandstoppi('Property1',value1,'Property2',value2,...) sets properties using one or more name-value pairs. You can specify multiple name-value pairs. Enclose each property name in a quote

Properties

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Computed S-parameters, noise figure, OIP3, and group delay values, specified as rfdata.data object. The values are computed over the specified frequency range. By default, this property is empty.

Data Types: function_handle

Capacitance value from source to load of all capacitors in the network, specified as a positive vector in farads. The length of the capacitance vector must be equal to the length of the vector you provide for 'L'. The default value is [0.0184e-10, 0.2287e-10, 0.0184e-10].

Data Types: double

Inductance value from source to load of all inductors in the network, specified as a positive vector in henries. The length of the inductance vector must be equal to the length of the vector you provide for 'C'. The default value is [0.2809e-7, 0.0226e-7, 0.2809e-7].

Data Types: double

Object name, specified as a 1-by-N character array. This is a read-only property.

Data Types: char

Number of ports, specified as a positive integer. This is a read-only property. The default value is 2.

Data Types: double

Object Functions

analyzeAnalyze RFCKT object in frequency domain
calculateCalculate specified parameters for rfckt objects or rfdata objects
plotyyPlot specified parameters on X-Y plane with Y-axes on both left and right sides
circleDraw circles on Smith Chart
extractExtract specified network parameters from rfckt object or data object
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
polarPlot specified object parameters on polar coordinates
semilogxPlot specified circuit object parameters using log scale for x-axis
semilogyPlot specified circuit object parameters using log scale for y-axis
smithPlot specified circuit object parameters on Smith chart
writeWrite RF data from circuit or data object to file

Examples

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Create a LC Bandstop Pi Filter using rfckt.lcbandstoppi.

filter = rfckt.lcbandstoppi('C',[1e-12 4e-12],'L',[2e-9 2.5e-9])
filter = 
   rfckt.lcbandstoppi with properties:

                 L: [2x1 double]
                 C: [2x1 double]
             nPort: 2
    AnalyzedResult: []
              Name: 'LC Bandstop Pi'

References

[1] Ludwig, R. and P. Bretchko, RF Circuit Design: Theory and Applications, Prentice-Hall, 2000.

[2] Zverev, A.I., Handbook of Filter Synthesis, John Wiley & Sons, 1967.

Introduced before R2006a