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How to design a filter in MATLAB using the data from an S2P touchstone file

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Saly07

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Hi,

I have an S2P file of a SAW filter containing S-Parameters S11, S12, S21, S22.
I want to use these data to implement the filter in my MATALAB code.

Is there something like:

d = fdesign.bandpass(.......'S-PARAMETERS extracted from S2P file' ....);
Hd = design(d,'.....');

??????

Thank you very much in advance for your help!
 

Saly07 said:
Hi,

I have an S2P file of a SAW filter containing S-Parameters S11, S12, S21, S22.
I want to use these data to implement the filter in my MATALAB code.

Is there something like:

d = fdesign.bandpass(.......'S-PARAMETERS extracted from S2P file' ....);
Hd = design(d,'.....');

??????

Thank you very much in advance for your help!
Click to expand...

Code: 
sparameters

Create S-parameter object
Syntax
hs = sparameters(filename)example
hs = sparameters(hnet)example
hs = sparameters(data,freq)
hs = sparameters(__,Z0)
hs = sparameters(cktobj,freq,Z0)example
Description
example
hs = sparameters([COLOR="#40E0D0"]filename[/COLOR]) creates an S-parameter object hs by importing data from the Touchstone file specified by filename.

example
hs = sparameters([COLOR="#40E0D0"]hnet[/COLOR]) creates an S-parameter object from the RF Toolbox network parameter object hnet.

hs = sparameters([COLOR="#40E0D0"]data,freq[/COLOR]) creates an S-parameter object from the S-parameter data, data, and frequencies, freq.

hs = sparameters(__,[COLOR="#40E0D0"]Z0[/COLOR]) creates an S-parameter with reference impedance of Z0.

example
hs = sparameters([COLOR="#40E0D0"]cktobj,freq,Z0[/COLOR]) calculates the S-parameters of a circuit object.

Examples

Extract and Plot the S-parameters of a File
Extract S-parameters from file default.s2p and plot it.

S = sparameters([COLOR="#EE82EE"]'default.s2p'[/COLOR]);
disp(S)
rfplot(S)
 
Last edited:
Thank you BigBoss for your response.
The thing is that I don't want to just extract and plot S-parameters, I actually want to implement the S2P file in my matlab code (if it is possible) or somehow use this file in order to filter the data I generate by a code line.

Any clue please?
 

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