Magnetic coils having cores with high magnetic permeability
First Claim
1. A system, comprising:
- a guided surface waveguide probe configured to generate an electromagnetic field when excited by an excitation source, wherein the electromagnetic field synthesizes a wave front incident at a complex Brewster angle of incidence (θ
i,B) of a terrestrial medium to generate a guided surface wave that travels across the terrestrial medium;
a guided surface wave receive structure configured to obtain electrical energy from the guided surface wave, wherein the guided surface wave receive structure comprises a magnetic coil and a core disposed in the magnetic coil, wherein the core has a relative magnetic permeability greater than about 10 and less than about 1,000,000; and
an electrical load coupled to the guided surface wave receive structure, the electrical load being experienced as a load at the excitation source coupled to the guided surface waveguide probe.
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Accused Products
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.
124 Citations
21 Claims
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1. A system, comprising:
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a guided surface waveguide probe configured to generate an electromagnetic field when excited by an excitation source, wherein the electromagnetic field synthesizes a wave front incident at a complex Brewster angle of incidence (θ
i,B) of a terrestrial medium to generate a guided surface wave that travels across the terrestrial medium;a guided surface wave receive structure configured to obtain electrical energy from the guided surface wave, wherein the guided surface wave receive structure comprises a magnetic coil and a core disposed in the magnetic coil, wherein the core has a relative magnetic permeability greater than about 10 and less than about 1,000,000; and an electrical load coupled to the guided surface wave receive structure, the electrical load being experienced as a load at the excitation source coupled to the guided surface waveguide probe. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A method, comprising:
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generating, by exciting a guided surface waveguide probe via an excitation source, an electromagnetic field that synthesizes a wave front incident at a complex Brewster angle of incidence (θ
i,B) of a terrestrial medium to generate a guided surface wave that travels across the terrestrial medium;receiving electrical energy in the form of the guided surface wave using a guided surface wave receive structure, wherein the guided surface wave receive structure comprises a magnetic coil and a core disposed in the magnetic coil, wherein the core has a relative magnetic permeability greater than about 10 and less than about 1,000,000; and supplying the electrical energy to an electrical load coupled to the guided surface wave receive structure. - View Dependent Claims (11, 12, 13, 14)
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15. A system, comprising:
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a guided surface wave receive structure configured to obtain electrical energy from a guided surface wave traveling across a terrestrial medium, wherein the guided surface wave receive structure comprises a magnetic coil and a core disposed in the magnetic coil, wherein the core has a relative magnetic permeability greater than about 10 and less than about 1,000,000; 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 an electromagnetic field that synthesizes a wave front incident at a complex Brewster angle of incidence (θ
i,B) of the terrestrial medium to generate the guided surface wave. - View Dependent Claims (16, 17, 18, 19, 20, 21)
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Specification