Radiation pattern normalization for comparison of multiple plots
dB is a logarithm and cannot be 0. Use a convenient level, e.g. -0.1.
Find out the maximum value of your gain and subtract all the values w.r.t that maximum value in that way you can get the normalized value of gain. Ex. Let the maximum gain value is 5db and minimum is - 30db for complete 180 degree. So if you normalize it w. r. t 5 you will get 0 and - 35.
Agree with Shailendra singh comments,
In HFSS you will get direct normalized patterns as well. This option you will find in the same table where you see abs, mag, dB, etc.
Take the data and save it in [A]. Suppose, it is in dB i.e. all data of Mat[A] are in dB. Then find max(A) and suppose it is 'm'. then subtract 'm' from each matrix element. After that, suppose, you got [A]_nom, then max value of that newly generated matrix will be '0' (dB)
you cannot normalise dB into 0, but sure you can do the math as our colleagues suggested, if that serves your purpose
choose dB10normalize in the "function" tab of the "Modify Report" window
Export to excel sheet, find maximum value by shorting, undo shorting and subtract maximum value from all.
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