Guided surface wave transmission of multiple frequencies in a lossy media
First Claim
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1. A system, comprising:
- a guided surface waveguide probe configured to launch a guided surface wave along a lossy conducting medium, wherein a field strength of the guided surface wave decays exponentially as a function of a distance from the guided surface waveguide probe;
a plurality of power sources coupled to the guided surface waveguide probe, individual power sources of the plurality of power sources being configured to excite the guided surface waveguide probe at a respective frequency of a plurality of different frequencies; and
a control system configured to adjust an operation of the guided surface waveguide probe for operation at a frequency of the plurality of different frequencies.
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Abstract
Disclosed are various embodiments for transmitting energy at multiple frequencies via a guided surface wave along the surface of a lossy medium such as, e.g., a terrestrial medium by exciting a guided surface waveguide probe.
102 Citations
20 Claims
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1. A system, comprising:
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a guided surface waveguide probe configured to launch a guided surface wave along a lossy conducting medium, wherein a field strength of the guided surface wave decays exponentially as a function of a distance from the guided surface waveguide probe; a plurality of power sources coupled to the guided surface waveguide probe, individual power sources of the plurality of power sources being configured to excite the guided surface waveguide probe at a respective frequency of a plurality of different frequencies; and a control system configured to adjust an operation of the guided surface waveguide probe for operation at a frequency of the plurality of different frequencies. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A system, comprising:
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a guided surface waveguide probe configured to launch a plurality of guided surface waves over a lossy conducting medium; a plurality of power sources coupled to the guided surface waveguide probe, individual power sources of the plurality of power sources being configured to excite the guided surface waveguide probe at a respective frequency of a plurality of different frequencies; and a feed network electrically coupled to a charge terminal of the guided surface waveguide probe, the feed network being configured to provide a respective phase delay that matches a respective wave tilt angle associated with a respective complex Brewster angle of incidence of the lossy conducting medium at a respective frequency. - View Dependent Claims (9, 10, 11, 12, 13, 14, 15)
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16. A method, comprising:
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determining at least one frequency from a plurality of different frequencies to use for operation of a guided surface waveguide probe, the guided surface waveguide probe being coupled to a plurality of power sources configured to excite the guided surface waveguide probe at the plurality of different frequencies; adjusting the guided surface waveguide probe to operate at the at least one frequency; exciting a charge terminal of the guided surface waveguide probe with at least one signal at the at least one frequency; launching at least one guided surface wave along a lossy conducting medium; and providing, via a feed network electrically coupled to a charge terminal of the guided surface waveguide probe, a respective phase delay that matches a respective wave tilt angle associated with a respective complex Brewster angle of incidence of the lossy conducting medium in a vicinity of the guided surface waveguide probe for a respective frequency of the at least one frequency. - View Dependent Claims (17, 18, 19, 20)
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Specification