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plot problem waveVswave[IM3 vs Pout]

atwinter

Hello there!,

I have a question related to waveform(waveVswave)....After i do the hb simulation(2tone), I want to plot IM3[dBc] VS Pout[dBm]

Does work well on IM3[dBc] VS Pin(dBm),

but IM3[dBc] VS Pout/(dBm) not working, I haven't been able to get this formula to work in any way.

IM3[dBc] equation : (value(ipnVRICurves((v("/I2/POUT" ?result "hb_mt_fi") - 0.0) '(2 -1) '(1 0) ?rport resultParam("I2.PORT2:r" ?result "hb_mt_fi") ?epoint -40) "trace" "3rd Order") - value(ipnVRICurves((v("/I2/POUT" ?result "hb_mt_fi") - 0.0) '(2 -1) '(1 0) ?rport resultParam("I2.PORT2:r" ?result "hb_mt_fi") ?epoint -40) "trace" "1st Order")) -> plot ok!

Powerout equation : dbm(pvr('hb "/I2/POUT" "/gnd!" 50.0 '((1 0)))) -> plot ok!

and I try to this

IM3[dBc] VS Pout[dBm]

db10(waveVsWave(?y (value(ipnVRICurves((v("/I2/POUT" ?result "hb_mt_fi") - 0.0) '(2 -1) '(1 0) ?rport resultParam("I2.PORT2:r" ?result "hb_mt_fi") ?epoint -40) "trace" "3rd Order") - value(ipnVRICurves((v("/I2/POUT" ?result "hb_mt_fi") - 0.0) '(2 -1) '(1 0) ?rport resultParam("I2.PORT2:r" ?result "hb_mt_fi") ?epoint -40) "trace" "1st Order")) ?x dBm(pvr('hb "/I2/RFOUT" "/gnd!" 50.0 '(1))) ?xName "Pout(H1)" ?xUnits "dBm" ?yName IM3")) -> plot fail

(error massage :Hence the two waves can't be plotted against each other.)

it doesn't work.

How can I this problem?

Parents
  • ShawnLogan

    Dear atwinter,

    atwinter said:

    and I try to this

    IM3[dBc] VS Pout[dBm]

    db10(waveVsWave(?y (value(ipnVRICurves((v("/I2/POUT" ?result "hb_mt_fi") - 0.0) '(2 -1) '(1 0) ?rport resultParam("I2.PORT2:r" ?result "hb_mt_fi") ?epoint -40) "trace" "3rd Order") - value(ipnVRICurves((v("/I2/POUT" ?result "hb_mt_fi") - 0.0) '(2 -1) '(1 0) ?rport resultParam("I2.PORT2:r" ?result "hb_mt_fi") ?epoint -40) "trace" "1st Order")) ?x dBm(pvr('hb "/I2/RFOUT" "/gnd!" 50.0 '(1))) ?xName "Pout(H1)" ?xUnits "dBm" ?yName IM3")) -> plot fail

    (error massage :Hence the two waves can't be plotted against each other.)

    it doesn't work.

    i believe I understand your problem. I do not know, however,  the characteristics of the x and y-axis waveform arguments to the waveVsWave() function. From your posting, it appears each argument can be plotted in ViVA successfully. However, I do not know if the waveVsWave y argument of:

    "(value(ipnVRICurves((v("/I2/POUT" ?result "hb_mt_fi") - 0.0) '(2 -1) '(1 0) ?rport resultParam("I2.PORT2:r" ?result "hb_mt_fi") ?epoint -40) "trace" "3rd Order") - value(ipnVRICurves((v("/I2/POUT" ?result "hb_mt_fi") - 0.0) '(2 -1) '(1 0) ?rport resultParam("I2.PORT2:r" ?result "hb_mt_fi") ?epoint -40) "trace" "1st Order"))"

    is always non-zero and positive. If it is negative or zero, then the db10 function you have applied to the waveVsWave() output will not produce a valid value.

    1. Have you inspected the values of the ViVA plotted signal "(value(ipnVRICurves((v("/I2/POUT" ?result "hb_mt_fi") - 0.0) '(2 -1) '(1 0) ?rport resultParam("I2.PORT2:r" ?result "hb_mt_fi") ?epoint -40) "trace" "3rd Order") - value(ipnVRICurves((v("/I2/POUT" ?result "hb_mt_fi") - 0.0) '(2 -1) '(1 0) ?rport resultParam("I2.PORT2:r" ?result "hb_mt_fi") ?epoint -40) "trace" "1st Order"))" by exporting them to a table?

    1a. Are all values greater than 0?

    2. Are you able to plot the following:

    waveVsWave(?y (value(ipnVRICurves((v("/I2/POUT" ?result "hb_mt_fi") - 0.0) '(2 -1) '(1 0) ?rport resultParam("I2.PORT2:r" ?result "hb_mt_fi") ?epoint -40) "trace" "3rd Order") - value(ipnVRICurves((v("/I2/POUT" ?result "hb_mt_fi") - 0.0) '(2 -1) '(1 0) ?rport resultParam("I2.PORT2:r" ?result "hb_mt_fi") ?epoint -40) "trace" "1st Order")) ?x dBm(pvr('hb "/I2/RFOUT" "/gnd!" 50.0 '(1))) ?xName "Pout(H1)" ?xUnits "dBm" ?yName IM3")

    Just a thought...

    Shawn

Reply
  • ShawnLogan

    Dear atwinter,

    atwinter said:

    and I try to this

    IM3[dBc] VS Pout[dBm]

    db10(waveVsWave(?y (value(ipnVRICurves((v("/I2/POUT" ?result "hb_mt_fi") - 0.0) '(2 -1) '(1 0) ?rport resultParam("I2.PORT2:r" ?result "hb_mt_fi") ?epoint -40) "trace" "3rd Order") - value(ipnVRICurves((v("/I2/POUT" ?result "hb_mt_fi") - 0.0) '(2 -1) '(1 0) ?rport resultParam("I2.PORT2:r" ?result "hb_mt_fi") ?epoint -40) "trace" "1st Order")) ?x dBm(pvr('hb "/I2/RFOUT" "/gnd!" 50.0 '(1))) ?xName "Pout(H1)" ?xUnits "dBm" ?yName IM3")) -> plot fail

    (error massage :Hence the two waves can't be plotted against each other.)

    it doesn't work.

    i believe I understand your problem. I do not know, however,  the characteristics of the x and y-axis waveform arguments to the waveVsWave() function. From your posting, it appears each argument can be plotted in ViVA successfully. However, I do not know if the waveVsWave y argument of:

    "(value(ipnVRICurves((v("/I2/POUT" ?result "hb_mt_fi") - 0.0) '(2 -1) '(1 0) ?rport resultParam("I2.PORT2:r" ?result "hb_mt_fi") ?epoint -40) "trace" "3rd Order") - value(ipnVRICurves((v("/I2/POUT" ?result "hb_mt_fi") - 0.0) '(2 -1) '(1 0) ?rport resultParam("I2.PORT2:r" ?result "hb_mt_fi") ?epoint -40) "trace" "1st Order"))"

    is always non-zero and positive. If it is negative or zero, then the db10 function you have applied to the waveVsWave() output will not produce a valid value.

    1. Have you inspected the values of the ViVA plotted signal "(value(ipnVRICurves((v("/I2/POUT" ?result "hb_mt_fi") - 0.0) '(2 -1) '(1 0) ?rport resultParam("I2.PORT2:r" ?result "hb_mt_fi") ?epoint -40) "trace" "3rd Order") - value(ipnVRICurves((v("/I2/POUT" ?result "hb_mt_fi") - 0.0) '(2 -1) '(1 0) ?rport resultParam("I2.PORT2:r" ?result "hb_mt_fi") ?epoint -40) "trace" "1st Order"))" by exporting them to a table?

    1a. Are all values greater than 0?

    2. Are you able to plot the following:

    waveVsWave(?y (value(ipnVRICurves((v("/I2/POUT" ?result "hb_mt_fi") - 0.0) '(2 -1) '(1 0) ?rport resultParam("I2.PORT2:r" ?result "hb_mt_fi") ?epoint -40) "trace" "3rd Order") - value(ipnVRICurves((v("/I2/POUT" ?result "hb_mt_fi") - 0.0) '(2 -1) '(1 0) ?rport resultParam("I2.PORT2:r" ?result "hb_mt_fi") ?epoint -40) "trace" "1st Order")) ?x dBm(pvr('hb "/I2/RFOUT" "/gnd!" 50.0 '(1))) ?xName "Pout(H1)" ?xUnits "dBm" ?yName IM3")

    Just a thought...

    Shawn

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