I would like to know the precise formula for the Free Space Path Loss in case of a Magnetic Field in the Near Field region.
We all know the popular FSPL formula, but this is only for the far field, where we have planewaves.
I am looking for a near-field magnetic field path loss formula. How much strength does a magnetic field lose per distance from the source?
Is there any way to model this system. I could not find a formula on the entire internet, I was hoping somebody here would know.