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AnalyzedResult property

Class: rfckt.hybrid
Package: rfckt

Computed S-parameters, noise figure, OIP3, and group delay values

Values

rfdata.data object

Description

Handle to an rfdata.data object that contains the S-parameters, noise figure, OIP3, and group delay values computed over the specified frequency range using the analyze method. This property is empty by default.

The analyze method computes the S-parameters of the AnalyzedResult property using the data stored in the Ckts property as follows:

  • The analyze method first calculates the h matrix of the hybrid network. It starts by converting each component network's parameters to an h matrix. The following figure shows a hybrid connected network consisting of two 2-port networks, each represented by its h matrix,

    where

  • The analyze method then calculates the h matrix for the hybrid network by calculating the sum of the h matrices of the individual networks. The following equation illustrates the calculations for two 2-port networks.

  • Finally, analyze converts the h matrix of the hybrid network to S-parameters at the frequencies specified in the analyze input argument freq.

The analyze method uses the hybrid S-parameters to calculate the group delay values at the frequencies specified in the analyze input argument freq, as described in the analyze reference page.

Examples

tx1 = rfckt.txline;
tx2 = rfckt.txline;
hyb = rfckt.hybrid('Ckts',{tx1,tx2})
analyze(hyb,[1e9:1e7:2e9]);
hyb.AnalyzedResult

ans =
 
            Name: 'Data object'
            Freq: [101x1 double]
    S_Parameters: [2x2x101 double]
      GroupDelay: [101x1 double]
              NF: [101x1 double]
            OIP3: [101x1 double]
              Z0: 50
              ZS: 50
              ZL: 50
        IntpType: 'Linear'
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