Abstract:
A deployable antenna used in a mobile device. The antenna can be folded into a stowed position in which it is coplanar with the housing. It can also be unfolded, preferably to an oblique angle, and used to receive wireless power from at least 6 inches away.
Abstract:
A method and apparatus for providing power to e.g., a chargeable device via a radio frequency link. In one aspect, a method of providing power to a chargeable device via radio frequency link comprises generating a substantially un-modulated signal. The method further comprises radiating a substantially un-modulated radio frequency (RF) signal to the chargeable device via a transmit antenna based on the substantially un-modulated signal. The method further comprises powering or charging the chargeable device with power delivered by the substantially un-modulated RF signal.
Abstract:
Exemplary embodiments are directed to wireless power transfer. A method may include wirelessly receiving power from a near field in a first near field coupling mode region with at least one parasitic antenna coupled to a housing having a chargeable device positioned therein. The method may further include generating an enhanced near field from the near field with the at least one parasitic antenna and wirelessly receiving power from the enhanced near field at an at least one receive antenna coupled to the chargeable device.
Abstract:
Exemplary embodiments are directed to wireless power transfer. A method may include wirelessly receiving power from a near field in a first near field coupling mode region with at least one parasitic antenna coupled to a housing having a chargeable device positioned therein. The method may further include generating an enhanced near field from the near field with the at least one parasitic antenna and wirelessly receiving power from the enhanced near field at an at least one receive antenna coupled to the chargeable device.
Abstract:
Exemplary embodiments are directed to wireless power transfer. A wireless power transmitter includes a transmit antenna configured as a resonant tank including a loop inductor and an antenna capacitance. The transmitter further includes an amplifier configured to drive the transmit antenna and a matching circuit operably coupled between the transmit antenna and the amplifier. The transmitter also includes a capacitor integrating the antenna capacitance and a matching circuit capacitance.
Abstract:
Exemplary embodiments are directed to wireless power transfer. A portable wireless power charger includes an antenna configured to generate a magnetic near-field for coupling of wireless power to a wireless powered device including a receiver. The antenna is substantially disposed around the perimeter of the charging pad. The portable wireless power charger further includes a feeder cable for coupling the input power to the charging pad.
Abstract:
A wirelessly-powered device that uses a ferrite based antenna. The ferrite antenna can be tuned to reduce the amount of flux within the housing.
Abstract:
Wireless power transfer is received using a magneto mechanical system. Movement of the magneto mechanical system is converted to electric power.
Abstract:
Techniques for wireless power transmission. An antenna has a part that amplifies a flux to make the antenna have a larger effective size than its actual size.
Abstract:
Exemplary embodiments are directed to wireless charging and wireless power alignment of wireless power antennas associated with a vehicle. A wireless power charging apparatus includes an antenna including first and second orthogonal magnetic elements for detecting a horizontal component of a magnetic field generated from a second charging base antenna. A processor determines a directional vector between the antennas.