[WTA] about antenna material RLSA

Someone, please help me.
How to calculate the power available at the antenna material RLSA?
I need your answer.
Thank you

hi,
i never heard about antenna power available before! are you referring to antenna efficiency and gain? if yes, refer to the link below.

http://www.antenna-theory.com/basics/gain.php

I would like to ask the radiated power of the material. story there is an antenna consisting of ground, polypropylene and radiating.
each has a function
ground: as a buffer so that this power does not come out
polypropylene: power where it flows
radiating: the presence of material (slot) is arranged, the material this is where the power was out (radiated).
I want to ask how to calculate the power that comes out of the material (slot), whereas we know each material has a different power. power each (material / slot) are clearly different.

Another example there is a tank containing water, on a pedestal and wall perforated tank, well if the walls and the base strength equal ?
definitely not not

How to measure power in a material using CST software.
Example antenna RLSA,polypropylene round shape where the flow of power. how to measure the flow of electricity in a polypropylene material using CST software