createTDRTable

Return TDR results as MATLAB table

Since R2025a

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    Syntax

    tdrTable = createTDRTable(tdrObj)
    tdrTable = createTDRTable(tdrObj,tdrType=Type)

    Description

    tdrTable = createTDRTable(tdrObj) returns a table containing time and impedance time-domain reflectometry (TDR) for all the ports specified in the TDR object tdrObj.

    tdrTable = createTDRTable(tdrObj,tdrType=Type) returns a table containing time and voltage, reflection coefficient, or impedance TDR based on the Type for all specified ports.

    example

    Examples

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    Open Live Script

    Create a TDR object from a 4-port Touchstone file.

    tdrObj = tdr('default.s4p');

    Plot the single-ended TDR of a 4-port S-parameter in units of impedance.

    plot(tdrObj)

    Figure contains an axes object. The axes object with title Single Ended TDR Response of default.s4p, xlabel Time (ns), ylabel TDR (\Omega) contains 4 objects of type line. These objects represent Port 1, Port 2, Port 3, Port 4.

    Plot the single-ended TDR of a 4-port S-parameter in units of voltage.

    plot(tdrObj, Type="voltage", Title="TDR Response (Voltage)")

    Figure contains an axes object. The axes object with title TDR Response (Voltage), xlabel Time (ns), ylabel TDR (V) contains 4 objects of type line. These objects represent Port 1, Port 2, Port 3, Port 4.

    Plot the single-ended TDR of a 4-port S-parameter with respect to velocity of propagation of the medium. Scale the X-axis of this response in meters.

    plot(tdrObj,Vp=3e8/2,Title="TDR Response(m)")

    Figure contains an axes object. The axes object with title TDR Response(m), xlabel (m), ylabel TDR (\Omega) contains 4 objects of type line. These objects represent Port 1, Port 2, Port 3, Port 4.

    Create a TDR table that displays the time and voltage TDR values for all the ports specified in the TDR object.

    T = createTDRTable(tdrObj,tdrType='voltage')
    T=10000×5 table
    Time (s)    Port 1 (V)    Port 2 (V)    Port 3 (V)    Port 4 (V)
    ________    __________    __________    __________    __________

          0            1             1             1             1  
      1e-12       1.0062       0.99943        1.0126        1.0087  
      2e-12        1.012       0.99992        1.0237        1.0168  
      3e-12       1.0175        1.0013        1.0335        1.0243  
      4e-12       1.0228        1.0035        1.0421        1.0312  
      5e-12       1.0278        1.0063        1.0498        1.0376  
      6e-12       1.0324        1.0097        1.0565        1.0436  
      7e-12       1.0369        1.0135        1.0625        1.0491  
      8e-12        1.041        1.0175        1.0678        1.0541  
      9e-12       1.0449        1.0218        1.0726        1.0587  
      1e-11       1.0485        1.0263        1.0769         1.063  
    1.1e-11       1.0457        1.0313        1.0682        1.0582  
    1.2e-11        1.043        1.0353        1.0606        1.0536  
    1.3e-11       1.0404        1.0382        1.0542        1.0494  
    1.4e-11       1.0378        1.0402        1.0487        1.0453  
    1.5e-11       1.0353        1.0414         1.044        1.0415  
      ⋮

    Input Arguments

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    Time-domain reflectometry object, specified as a tdr object.

    TDR type, specified as one of the following:

    • 'voltage' — Returns a table containing time and voltage TDR for all specified ports.

    • 'reflectionCoefficient' — Returns a table containing time and reflection coefficient TDR for all specified ports.

    • 'impedance' — Returns a table containing time and impedance TDR for all specified ports and this is the default option.

    Output Arguments

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    Table of TDR values over time of the ports specified in the TDR object, returned as a table.

    Version History

    Introduced in R2025a

    See Also

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