Abstract: The use of wireless power distribution equipment can be used to distribute power across various regions. Power from a power plant can be distributed to sub-transmission stations. For example, a transmission probe can be configured to launch a transmission frequency guided surface wave for power transmission over a transmission region. A sub-transmission station can receive the transmission frequency guided surface wave. A sub-transmission probe can be configured to launch a sub-transmission frequency guided surface wave to transmit power over a sub-transmission region to transmit power. A distribution station can receive the power from the sub-transmission frequency guided surface wave.

Abstract: Various examples are provided for enhanced guided surface waveguide probes, systems and methods. In one example, a guided surface waveguide probe includes a charge terminal elevated over a lossy conducting medium, the charge terminal includes a upper terminal portion coupled to a lower terminal portion through a variable capacitance. A feed network is configured to couple an excitation source to the charge terminal and provide a voltage to the charge terminal with a phase delay that matches a wave tilt angle associated with a complex Brewster angle of incidence associated with the lossy conducting medium. In another example a method includes positioning a charge terminal over a lossy conducting medium, where the charge terminal includes an upper terminal portion coupled to a lower terminal portion through a variable capacitance.

Abstract: Disclosed are various embodiments for transmitting energy conveyed in the form of a guided surface waveguide mode along the surface of a lossy conducting medium such as, e.g., a terrestrial medium by exciting a guided surface waveguide probe. In one embodiment, compensation is provided to elevate isolated capacitance of a terminal of the waveguide probe in the form of mounted charge devices.

Abstract: Disclosed are various embodiments of a guided surface waveguide transmit system. One embodiment of the guided surface waveguide transmit system includes a guided surface waveguide probe configured to transmit a guided surface wave along a lossy conducting medium. The system further includes a controller device configured to receive load status data and signal for the guided surface waveguide probe to adjust transmission of the guided surface wave based at least in part on the load status data.

Abstract: Disclosed are various embodiments of apparatuses, systems, and methods for restricting functionality of guided surface wave receive equipment to unauthorized users. In one embodiment, an apparatus includes a network interface adapted to receive a valid key code, and a guided surface wave receive structure configured to obtain electrical energy from a guided surface wave traveling along a lossy conducting medium, wherein the guided surface wave is embedded with a user key code. Accordingly, processing circuitry is further included and is adapted to validate the user key code against the valid key code. The processing circuitry is adapted to disable delivery of the electrical energy from the guided surface wave to an electrical load responsive to the user key code being invalidated.

Abstract: A power multiplier and method are provided. The power multiplier includes a power multiplying network that is a multiply-connected, velocity inhibiting circuit constructed from a number of lumped-elements. The power multiplier also includes a launching network, and a directional coupler that couples the launching network to the power multiplying network. The power multiplier provides for power multiplication at nominal power generation frequencies such as 50 Hertz, 60 Hertz, and other power frequencies, in a compact circuit.

Abstract: Disclosed are various embodiments for adjusting an operational parameter of a guided surface waveguide probe according to measurements received from one or more measuring devices. A measuring device measures the conditions associated with an environment of the measuring device. The measuring devices communicates the measured data to the guided surface waveguide probe. Adjustments can be made to one or more operational parameters of the guided surface waveguide probe according to the measured data.

Abstract: Disclosed is an implantable medical device and methods of using the medical device. The medical device may include a guided surface wave receive structure configured to receive a guided surface wave transmitted by a guided surface waveguide probe. The guided surface wave receive structure in the medical device generates an alternating current signal when the guided surface wave is received. The medical device includes a power circuit that is coupled to the guided surface wave receive structure. The power circuit includes a power storage circuit to store the power signal. The medical device includes a medical circuit that comprises a stimulus circuit, a monitoring circuit, and potentially other components. The stimulus circuit provides a stimulus to a human body. The monitoring circuit measures a characteristic of the human body.

Abstract: Disclosed are various embodiments for transmitting energy conveyed in the form of a guided surface-waveguide mode along the surface of a lossy medium such as, e.g., a terrestrial medium by exciting a guided surface waveguide probe.

Abstract: Disclosed, in one example, is an energy consumption node. The node includes a guided surface wave receive structure configured to obtain electrical energy from a guided surface wave traveling along a terrestrial medium. The node also includes a distribution system coupled to the guided surface wave receive structure and configured to distribute the obtained electrical energy to an electrical load coupleable to the distribution system.

Abstract: Aspects of magnetic coils having cores with relatively high magnetic permeability are described. In some embodiments, a system includes a guided surface wave receive structure configured to obtain electrical energy from a guided surface wave traveling across a terrestrial medium. The guided surface wave receive structure includes a magnetic coil and a core disposed in the magnetic coil. The core in some embodiments has a relative magnetic permeability greater than about 10 and less than about 1,000,000. An electrical load is coupled to the guided surface wave receive structure, with the electrical load being experienced as a load at an excitation source coupled to a guided surface waveguide probe generating the guided surface wave.

Abstract: Disclosed are various approaches for determining positions of a navigation unit and correcting for errors. The navigation unit can receive a guided surface wave using a guided surface wave receive structure. The navigation unit can then determine a potential location of the guided surface wave receive structure. Finally, the navigation unit can determine an accuracy of the potential location based at least in part on a secondary data source.

Abstract: Aspects of return coupled wireless power transmission systems are described. In one embodiment, a system includes a guided surface waveguide probe including a charge terminal elevated at a height over a lossy conducting medium, and a feed network. The system further includes a conductor coupled to the guided surface waveguide probe that extends a distance away from the guided surface waveguide probe across the lossy conducting medium, and at least one guided surface wave receivers coupled to the conductor. The conductor can help to provide additional efficiency in power transfer between the guided surface waveguide probe and the guided surface wave receivers, especially when the operating frequency of the probe is in the medium, high, or very high frequency ranges.

Abstract: Disclosed is a guided surface waveguide probe including a charge terminal configured to generate an electromagnetic field and a support apparatus that supports the charge terminal above a lossy conducting medium, wherein the electromagnetic field generated by the charge terminal synthesizes a wave front incident at a complex Brewster angle of incidence (?i,B) of the lossy conducting medium.

Abstract: Disclosed herein are various embodiments for a guided surface waveguide probe and a guided surface wave receiver, where the guided surface wave receiver comprises processing circuitry that (a) identifies at least one frequency from a plurality of available frequencies associated with a transmission of Zenneck surface waves along a terrestrial medium, and (b) adjusts a frequency at which the guided surface wave receiver receives electrical energy from the Zenneck surface waves via the terrestrial medium to a predetermined frequency.

Abstract: Disclosed are systems and methods for long distance transmission of offshore generated power. A turbine is located offshore. The turbine can be mechanically coupled to a generator. A guided surface waveguide probe is electrically coupled to the generator and configured to launch a guided surface wave on a terrestrial medium.

Abstract: Disclosed are various embodiments of an electromagnetic hybrid phased array system. One such embodiment includes a guided surface waveguide probe, and a contrawound toroidal helix antenna collocated with the guided surface waveguide probe in which the contrawound toroidal helix comprises ring elements spaced from each other and wrapped around the guided surface waveguide probe. The system further includes a signal source applied to at least the guided surface waveguide probe, such that the guided surface waveguide probe and the contrawound toroidal helix contribute individual vertical electric fields to form a radiation pattern based on the phase and amplitude characteristics of the individual vertical electric fields.

Abstract: Disclosed are various embodiments of a guided surface wave transmitter/receiver configured to transmit a guided surface wave at a first frequency and to receive guided surface waves at a second frequency, concurrently with the transmission of guided surface waves at the first frequency. The various embodiments can be configured to retransmit received power and applied the received power to an electrical load. The various embodiments of the guided surface wave transmitter/receiver also can be configured as an amplitude modulation (AM) repeater.

Abstract: Disclosed a guided surface waveguide probe including a charge terminal configured to generate an electromagnetic field and a support apparatus that supports the charge terminal above a lossy conducting medium, wherein the electromagnetic field generated by the charge terminal synthesizes a wave front incident at a complex Brewster angle of incidence (?i,B) of the lossy conducting medium.

Abstract: Various embodiments for deterring theft in wireless power systems are disclosed. In one embodiment, an electrical device, comprise a guided surface wave receive structure configured to obtain electrical energy from a guided surface wave traveling along a terrestrial medium, and an electrical load coupled to the guided surface wave receive structure, the electrical load being experienced as a load at an excitation source coupled to a guided surface waveguide probe generating the guided surface wave. Processing circuitry of the electrical device may be configured to monitor the electrical load to determine whether a power consumption of the electrical load has exceeded a predefined amount of permitted power consumption and disable the wireless power receiver or the electrical load coupled to the wireless power receive structure in response to the electrical load exceeding the predefined amount of permitted power consumption.