Near-field magnetic communication

Abstract

Even as cell phones have shrunk in size while boasting an ever-increasing array of features, two things about them haven't changed much: they still sprout a stubby antenna and, if you want a headset, you have to put up with an unwieldy wire connecting the headset and the phone. Thanks to a patented technology called near-field magnetic communication (NFMC), from Aura Communications, one can also cut the cord between the phone and the headset. While the concepts behind magnetic induction communication have been around for decades, Aura's engineers are the first to develop and implement practical solutions capturing the benefits of this technology. NFMC communicates wirelessly by coupling a very-low-power quasistatic magnetic field at 13.56 MHz. This paper discusses further the benefits of this technology.