From: Pedro C. V. <ped...@ep...> - 2005-09-28 09:45:56
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Hello, My name is Pedro and I am a PhD Student at EPFL (Switzerland). I have S-parameters measurements of an microwave passive device in touchstone format. I would like to use the S-parameters file data facilities of Qucs to load this measurements as a "black box" in the scheme and add some other circuits to the ports. My measurements corresponds to a two-port device. I tried this using a "two-ports S-parameters file" object and I put the reference port (indicated with "R") to ground but I do not manage even to plot only the S-parameters already in the file. Could somebody give me an example/idea about how to do this, please??? Thank you very much in advance Sincerely yours, Pedro Crespo. |
From: Stefan J. <st...@gr...> - 2005-09-28 10:13:26
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On Mi, 28.09.2005, 11:45, Pedro Crespo Valero wrote: > Hello, Hi! > My name is Pedro and I am a PhD Student at EPFL (Switzerland). I have > S-parameters measurements of an microwave passive device in touchstone > format. I would like to use the S-parameters file data facilities of > Qucs to load this measurements > as a "black box" in the scheme and add some other circuits to the ports. > My measurements corresponds to a two-port device. I tried this using a > "two-ports S-parameters file" object and I put the reference port > (indicated with "R") to ground but I do not manage even to plot only the > S-parameters already in the file. Could somebody give me an example/idea > about how to do this, please??? You're right using the "two-ports S-parameters file" object. The reference port (indicated with "Ref" and *not* "R") must be connected to a ground symbol. Then you need to connect two "power source" objects to each of the remaining connections and also add a "S-parameter simulation" object onto the schematic. Then you can simulate and plot the S-parameters already in the file. Hope this helps, Stefan. |
From: Pedro C. V. <ped...@ep...> - 2005-09-29 16:33:53
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Yeeesss!!!!!!! I do not really know how I did before but now it is working perfetly. THank you very much for your help! Pedro. Stefan Jahn wrote: >On Mi, 28.09.2005, 11:45, Pedro Crespo Valero wrote: > > > >>Hello, >> >> > >Hi! > > > >>My name is Pedro and I am a PhD Student at EPFL (Switzerland). I have >>S-parameters measurements of an microwave passive device in touchstone >>format. I would like to use the S-parameters file data facilities of >>Qucs to load this measurements >>as a "black box" in the scheme and add some other circuits to the ports. >>My measurements corresponds to a two-port device. I tried this using a >>"two-ports S-parameters file" object and I put the reference port >>(indicated with "R") to ground but I do not manage even to plot only the >>S-parameters already in the file. Could somebody give me an example/idea >>about how to do this, please??? >> >> > >You're right using the "two-ports S-parameters file" object. The reference >port (indicated with "Ref" and *not* "R") must be connected to a ground >symbol. Then you need to connect two "power source" objects to each >of the remaining connections and also add a "S-parameter simulation" >object onto the schematic. Then you can simulate and plot the S-parameters >already in the file. > >Hope this helps, > Stefan. > > > >------------------------------------------------------- >This SF.Net email is sponsored by: >Power Architecture Resource Center: Free content, downloads, discussions, >and more. http://solutions.newsforge.com/ibmarch.tmpl >_______________________________________________ >Qucs-help mailing list >Quc...@li... >https://lists.sourceforge.net/lists/listinfo/qucs-help > > > |