How to set "monopoleCylindrical()" observation point(s) to show "efield" using "pattern()" or else (antenna toolbox )?

I want to see V/m values at a defined position relative to the monopole antenna (not interrested by normalized values).

Answer 1

[Jack]

Instead of using pattern, which is designed for normalized far‐field plots (often in dB), you should use EHfields. EHfields computes the actual electric and magnetic field vectors (in V/m and A/m) at user‐defined observation points. This function lets you specify the coordinate system (e.g., Cartesian, spherical, or cylindrical) so you can input your desired positions accurately. It works for both near-field and far-field calculations, so you can obtain the real, unnormalized field values you need for your analysis.

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[Michel]

Thank you very much!

My question was mostly oriented toward "pattern()" because it has an option to see without normalization, and that the default distance is set in the far-field at 100*Lembda. I was wondering how to change the distance. It is not obvious (spent a whole day) that it is not possible to change the 100*Lembda distance to something else. If impossible to change the measurement distance, then it is not very usefull (and confusing) to have a non-normalized efield option...

I'll follow your recommendation and forget about pattern().