Systems and methods for providing wireless power to deep implanted devices

A method for providing wireless power to a device implanted in a body of an individual, comprising:

• controlling, using a first antenna controller of one or more antenna controllers, a loading component of a first antenna loop applying power by a first antenna controller to produce a first electromagnetic near-field, the first antenna loop electrically coupled to the first antenna controller;
• simultaneously with controlling the loading component of the first antenna loop, controlling a second antenna loop by a second antenna controller of the one or more antenna controllers to produce a second electromagnetic near-field, the first and second electromagnetic near-fields interfering with one another to produce an interference pattern including interference maxima, the second antenna loop electrically coupled to the second antenna controller;
• wherein a location of at least one of the interference maxima is at a depth associated with the device implanted in the body of the individual;
• and
• wherein the interference pattern is broadly distributed at the surface of the skin to minimize a peak specific absorption rate at the surface of the skin.

A system for providing power to a device implanted in a body of an individual, comprising:

• a first antenna loop, the first antennal loop comprising a first loading component;
• a plurality of second antenna loops;
• a power source configured to provide power to the first antenna loop and to the plurality of second antenna loops, the first antenna loop configured to produce a first electromagnetic near-field and the plurality of second antenna loops configured to produce a plurality of second electromagnetic near-fields;
• and
• a first antenna controller coupled to the first antenna loop, the first antenna controller being configured to control a characteristic of the first loading component to produce the first electromagnetic near-field;
• a plurality of second antenna controllers, each second antenna controller of the plurality of second antenna controllers coupled to different one of the plurality of second antennas, each second antenna controller of the plurality of the second antenna controllers being configured to control a property of a respective second antenna loop;
• and
• wherein the first electromagnetic near-field and the plurality of second electromagnetic near-fields configured to cause a specific absorption rate (“SAR”) at a first depth corresponding to a skin surface below a threshold maximum SAR and to interfere with one another to produce interference maxima and the first antenna controller and the plurality of second antenna controllers configured to maintain a location of at least one of the interference maxima at or close to a second depth associated with the device implanted in the body of the individual.