What does pattern function do under planeWaveExcitation?

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Joshua Goglio
Joshua Goglio 2018-5-16
I have a question regarding planeWaveExcitation.
When I create a planeWaveExcitation environment:
p = planeWaveExcitation;
p.Direction = [0 0 1];
p.Polarization = [0 1 0];
p.Element = myArray;
and then I call the pattern() or patternElevation() function:
patternElevation(p, freq);
what is MATLAB actually doing here? Am I actually obtaining a scattering solution for the radiation pattern (i.e. plane wave comes in, excites currents in my element, then re-radiates fields that result in the radiation pattern I am shown), or is something else going on?
I'm also interested in any nuance between using an element vs array as the planeWaveExcitation 'Element.'
Thank you in advance.

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