# Ιnput referred noise of an amplifier

I have a problem with a low noise amplifier because I can't find in ADS(Advance design system) software how to integrating under the are of a measured curve in a specific frequency range.Can someone help me how I can achieve that?

Figure 1 shows a paper result and how the noise measured and Figure 2,3 shows my results.As we can see the measured values for the noise is approximately the same but I would like to integrate under the are of a measured curve from 10Hz to 98kHz to find the total input referred noise and I don't know how I can do it.Also, I had searched a lot on the internet and I didn't find something useful.Can someone help me?