Access RF Budget Power Out vs Frequency Array

How do I access/use the frequency-dependet values that I can plot using

rfplot(rfobj,rfpara)

https://www.mathworks.com/help/rf/ref/rfbudget.rfplot.html#d126e76514

For example, like Pout in https://www.mathworks.com/help/rf/ug/visualizing-rf-budget-analysis-over-bandwidth.html.

I want to be able to run statistics like average and variance on the gain and power.

[temmeand]

This appears to only give the property at one frequency point for each stage. This means that statistics would be calculated across the entire signal chain.

When plotting these values on a 3D plot, each stage can have a dependence on frequency. Simple examples are filters and amplifiers with gain that decrease with frequency. It is the property versus frequency at a particular stage that I am trying to access. Am I missing something about the dot access?

Answer 1

[temmeand]

You have to pull the data from the graph.

% rf plot, e.g.
rfplot(rfobj,rfpara)

% pull the data
h = findobj(gca, 'Type', 'line'); % find the lines plotted by rfplot

freq_cell = get(h, 'Ydata'); % extract the y-data (Input Frequency)
cell_pout = get(h, 'Zdata'); % extract the z-data (Pout)

freq = freq_cell{1}; % Input Frequency Data
cell_pout = flip(cell_pout);
pout = cell_pout{end};
fprintf("Pout average %.2f dBm with a range of %.2f dB for an input of %.2fdBm from %.1f to %.1f GHz",mean(pout), range(pout), Pin, min(freq), max(freq));

Answer 2

[UDAYA PEDDIRAJU]

Hi Temmeand,

I understand that you want to access the data plotted by the “rfplot” function. You can access this data through the "plot" object, which contains the properties of the data plotted.

Here’s an example:

h = rfplot(rfobj, rfparam);
data = h.YData;

In this code, "h" is a handle to the plot object created by “rfplot”. The “YData” property of "h" contains the y-coordinates of the data points in the plot, which should correspond to the frequency-dependent values you’re interested in.

You can then use these values to calculate statistics like average and variance. For example:

avg = mean(data);
variance = var(data);

I hope this example helps you understand the concept.

Thank you,

Uday