PA Simulation in SpectreRF

Discussion in 'Cadence' started by mxkdirs, Feb 19, 2006.

  1. mxkdirs

    mxkdirs Guest

    Hello all,

    I've documentation for SpectreRF PA measurements. It talks about
    plotting the stability factors, Kf and B1f using swept PSS and PSP.
    But then it also says that the PSP generates small signal s-parameters
    and VSWR results and that currently SpectreRF doesn't support large
    signal SP analysis (I'm using as far as I know the latest Cadence
    version, 5.0.33). So my question is if the simulation doesn't generate
    large signal s-parameters then is the Kf and B1f results aplicable to
    PA large signal conditions? In ADS there's a design guide that's setup
    to do large signal stability checks and it's truly for large signal but
    I'm not sure about Kf and B1f values for PA in Spectre. Another thing
    that leads me to doubt it is that on the SpectreRF document for PA it
    mentions the stability conditions from Gonzalez book, which is
    definitely only applies to small signal amplifier design.

    Thanks a bunch!

    Mike
     
    mxkdirs, Feb 19, 2006
    #1
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