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Magnetic field antenna

  • US 10,448,144 B2
  • Filed: 11/09/2016
  • Issued: 10/15/2019
  • Est. Priority Date: 08/31/2006
  • Status: Active Grant
First Claim
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1. A magnetic field antenna comprising:

  • an earplug body having a distal end and a proximal end;

    a magnetic core section within the earplug body;

    an antenna coil having at least one turn wrapped at least partially around the magnetic core section;

    at least one electrical component within the earplug body and electrically coupled to the antenna coil; and

    a magnetic cap at the distal end of the earplug body, the magnetic cap magnetically coupled to the magnetic core.

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