Abstract: A wireless power transmission device for transmitting power from a power source to a load includes a three-dimensional source conductive element that is electrically coupled to the power source and that induces an alternating current therein. A first three-dimensional resonating conductive element surrounds the source conductive element, but is physically decoupled therefrom and resonates in response to the alternating current induced in the source conductive element. A second three-dimensional resonating conductive element is physically spaced apart from the first three-dimensional resonating conductive element and resonates in response to an oscillating field generated by the first three-dimensional resonating conductive element. A three-dimensional load conductive element is within the second three-dimensional resonating conductive element, but is physically decoupled therefrom.

Abstract: An antenna includes a dielectric sheet and a conductive film. The dielectric sheet is folded into a plurality of fold segments and is configured to be compressed into a compressed state and to be expanded into an expanded state. The conductive film is disposed on a portion of the dielectric sheet. The conductive film has a pattern that defines a current path from the bottom of the dielectric sheet to the top of the dielectric sheet. The pattern is configured so that the each of the plurality of fold segments includes a portion of the pattern and so that the portion of the pattern on each fold segment is substantially non-juxtaposed with respect to the portion of the pattern on each adjacent fold segment when the dielectric sheet is fully compressed into the compressed state.

Abstract: An antenna includes a dielectric sheet and a conductive film. The dielectric sheet is folded into a plurality of fold segments and is configured to be compressed into a compressed state and to be expanded into an expanded state. The conductive film is disposed on a portion of the dielectric sheet. The conductive film has a pattern that defines a current path from the bottom of the dielectric sheet to the top of the dielectric sheet. The pattern is configured so that the each of the plurality of fold segments includes a portion of the pattern and so that the portion of the pattern on each fold segment is substantially non-juxtaposed with respect to the portion of the pattern on each adjacent fold segment when the dielectric sheet is fully compressed into the compressed state.

Abstract: A wireless power transmission system includes a planar source conductor configured to generate a first periodically fluctuating electromagnetic near field in response to an alternating current received from the power source. A planar resonant source element is coplanar with the planar source conductor and has a first resonant frequency. The planar resonant source element has a Q factor that is at a maximum at the first resonant frequency. A planar resonant load element resonates at the first resonant frequency. A planar load conductor is electromagnetically coupled to and coplanar with the planar resonant load element and generates a current in response to the second periodically fluctuating electromagnetic near field from the planar resonant load element.

Abstract: A wireless power transmission device for transmitting power from a power source to a load includes a three-dimensional source conductive element that is electrically coupled to the power source and that induces an alternating current therein. A first three-dimensional resonating conductive element surrounds the source conductive element, but is physically decoupled therefrom and resonates in response to the alternating current induced in the source conductive element. A second three-dimensional resonating conductive element is physically spaced apart from the first three-dimensional resonating conductive element and resonates in response to an oscillating field generated by the first three-dimensional resonating conductive element. A three-dimensional load conductive element is within the second three-dimensional resonating conductive element, but is physically decoupled therefrom.

Abstract: A wireless power transmission system includes first source conductor that generates a first electromagnetic near field in response to a power source. A first source element resonates in response to excitation from the first source conductor. A second resonant source element resonates in response to excitation from the first source conductor. A first resonant load element resonates in response to excitation from the first resonant source element. The first resonant load element generates a fluctuating field when resonating. A second resonant load element resonates at the second resonant frequency in response to excitation from the second resonant source element. The second resonant load element generates a fluctuating field when resonating. A first load element generates a first current applied to a first load in response to resonance in the first resonant load element and the second resonant load element.