Near-field electromagnetic induction (NFEMI) antenna

A wearable device, comprising:

• an electric antenna including a first electrically conductive planar surface;
• a magnetic antenna including a first coil coupled to a second coil;
• a first feeding connection coupled to one end of the first coil;
• a second feeding connection coupled to another end of the first coil and one end of the second coil;
• wherein another end of the second coil is connected to the electrically conductive surface;
• and
• a magnetic permeable material coupled to one side of the magnetic antenna and configured to be placed between the magnetic antenna and a set of electric components;
• wherein the electric and magnetic antennas form a near-field electromagnetic induction (NFEMI) antenna;
• wherein the first coil is a planar spiral coil;
• and
• wherein the first coil is configured to function as a second electrically conductive surface in the electric antenna by physically facing the first electrically conductive planar surface.