How does NFMI frequency performance compare to that of RF?
The RF band at 2.4GHz is an extremely ‘crowded’ portion of the radio spectrum, and frequent signal conflicts can be expected. Conversely, magnetic induction typically operates in the Industrial, Scientific and Medical band at 13.5 MHz, minimizing both spectrum contention and interference to and from other devices. Magnetic induction communication is performed in a tightly-constrained three dimensional “bubble” surrounding each user, and is inherently more secure than RF while providing 10 to 100X the frequency reuse of RF systems.
