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Large Signal Y-Parameter or S-parameter

HamidKhatibi

Hi

I need to find large signal Y-parameters of a 2-port network such as a common source amplifier, in  Cadence.

Has anyone done something successful in this regard, please help me with it. Once I tried LSSP but the results did not make sense and the oscillator I designed based on small signal parameters worksd, whereas the one designed based on the LSSP results did not even oscillate!

Thanks,

Hamid

Parents

  • Hamid,

    It probably means that nobody asked for it, not that they're not accurate.

    You can enter zpm('lssp 1 1) etc in the calculator. The "Spectre RF Functions" panel in the calculator doesn't list lssp in the dropdown for spm, zpm or ypm, but if you type it in, it works...

    I filed CCR 1412054 to get the calculator cyclic choice for Analysis Type enhanced to add "lssp", and CCR 1412059 to get the Direct Plot form enhanced to list Z and Y parameters. Of course, it may add more weight if you contact customer support and request custmer-specific duplicates of these (customer requests have more weight than internal requests).

    Regards,

    Andrew.

Reply

  • Hamid,

    It probably means that nobody asked for it, not that they're not accurate.

    You can enter zpm('lssp 1 1) etc in the calculator. The "Spectre RF Functions" panel in the calculator doesn't list lssp in the dropdown for spm, zpm or ypm, but if you type it in, it works...

    I filed CCR 1412054 to get the calculator cyclic choice for Analysis Type enhanced to add "lssp", and CCR 1412059 to get the Direct Plot form enhanced to list Z and Y parameters. Of course, it may add more weight if you contact customer support and request custmer-specific duplicates of these (customer requests have more weight than internal requests).

    Regards,

    Andrew.

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