Effects of metal structures on magneto-inductive coupled coils

This paper analysizes the effects of metal structures in near-field Magneto-Inductive (MI) communication systems, where the transmitter and/or receiver coils may be close to large metal structures that has high magnetic permeability and conductivity. EMCoStudio simulations show that the presence of metal structure help to increase the coupling magnitude if placed nearby the transmit and receive coils, but reduces significant if placed between the transmit and receive coils.