how to set up a marker?

Hi Guys
I am studying RFDE software examples, the question is how to set up a marker?
For example,in HB simulation, I have two frequencies, and one sweep parameter(VinputdB),then the output variables will be a function of VinputdB, so how can I set up a marker so when I move marker, the plot will update automatically as the VinputdB changes. The example was in RFDE example RFIC_BJT_Mixer->MixConversionGain, also can anyone explain the following expression?

vs(Spectrum[VinputIndex,::],freq[VinputIndex,::])
also, in the same example, what is spectrum, dB volts? The define function is
Spectrum=20*log(mag(IF_p-IF_N)+1e-20)
so what is spectrum, dB volts?
It is so confusing.
Thanks a lot for your reply

liletian said:

Hi Guys
I am studying RFDE software examples, the question is how to set up a marker?
For example,in HB simulation, I have two frequencies, and one sweep parameter(VinputdB),then the output variables will be a function of VinputdB, so how can I set up a marker so when I move marker, the plot will update automatically as the VinputdB changes. The example was in RFDE example RFIC_BJT_Mixer->MixConversionGain, also can anyone explain the following expression?

vs(Spectrum[VinputIndex,::],freq[VinputIndex,::])

Click to expand...

I don't see RFDE example RFIC_BJT_Mixer.
But such description of data display is very common in ADS.

You can know variable dependecies if you execute "what(Spectrum)".
Maybe it is shown something like [VinputdB, freq].
If VinputIndex is defined as array like [2::1::7]
So　the above plot Spectrum for this range of VinputdB.
Here horizontal axis is frequency.
VinputIndex can be defined using two markers.

If VinputIndex is not array but one index, Spectrum for one specific VinputdB is plotted. In this case, VinputIndex is related to one marker.

also, in the same example, what is spectrum, dB volts? The define function is
Spectrum=20*log(mag(IF_p-IF_N)+1e-20)
so what is spectrum, dB volts?

Click to expand...

This is dBV.

It is so confusing.

Click to expand...

If you read manuals surely, you could never be confused.
and you can undestand the following by yourself.


ADS is very easy to use.