Wireless energy transfer using magnetic materials to shape field and reduce loss

A method, comprising:

• providing a source resonator optionally coupled to an energy source and a second resonator located a distance from the source resonator,
• near-field wireless energy transfer among the source resonator and the second resonator and
• shaping the field of at least one of the source resonator and the second resonator using a magnetic material.

A system, comprising:

• a resonator coupled to power and control circuitry;
• wherein the resonator and the power and control circuitry are configured to provide near-field wireless energy transfer among other resonators,
• and wherein the power and control circuitry is at least partially covered by high permeability materials to shape magnetic fields of the resonator around the power and control circuitry.