Patents by Inventor John Desmond Hunt
John Desmond Hunt has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 11879989Abstract: In an embodiment, an antenna subsystem includes a sparse receive antenna and an electronically steerable transmit antenna. The sparse receive antenna includes an array of electronically steerable receive elements each configured to receive a respective signal having a wavelength and each spaced apart from each adjacent one of the receive elements by a respective first distance that is more than one half of the wavelength. And the electronically steerable transmit antenna includes an array of transmit elements each configured to radiate a respective signal having the wavelength and each spaced apart from each adjacent one of the transmit elements by a respective second distance that is less than one half of the wavelength. To reduce aliasing, such an antenna subsystem can be operated to filter, spatially, a receive beam pattern generated by the receive antenna with a transmit beam pattern generated by the transmit antenna.Type: GrantFiled: June 16, 2020Date of Patent: January 23, 2024Assignee: Echodyne Corp.Inventors: Nicholas K. Brune, Muhammad Rameez Chatni, Tom Driscoll, Jonathan R. Hull, John Desmond Hunt, Christopher L. Lambrecht, Nathan Ingle Landy, Milton Perque, Charles A. Renneberg, Benjamin Sikes, Tarron Teeslink, Ioannis Tzanidis, Robert Tilman Worl, Adam Bily
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Publication number: 20230147070Abstract: An embodiment of a radar subsystem includes at least one antenna and a control circuit. The at least one antenna is configured to radiate at least one first transmit beam and to form at least one first receive beam. And the control circuit is configured to steer the at least one first transmit beam and the at least one first receive beam over a first field of regard during a first time period, and to steer the at least one first transmit beam and the at least one first receive beam over a second field of regard during a second time period.Type: ApplicationFiled: June 14, 2022Publication date: May 11, 2023Applicant: Echodyne Corp.Inventors: Tom Driscoll, John Desmond Hunt, Robert Tilman Worl, Muhammad Rameez Chatni, Aanand Esterberg, Kerem Karadayi, Christopher L. Lambrecht, Nathan Ingle Landy, Skyler Martens, Dominic Chun Kit Wu
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Patent number: 11402462Abstract: An embodiment of a radar subsystem includes at least one antenna and a control circuit. The at least one antenna is configured to radiate at least one first transmit beam and to form at least one first receive beam. And the control circuit is configured to steer the at least one first transmit beam and the at least one first receive beam over a first field of regard during a first time period, and to steer the at least one first transmit beam and the at least one first receive beam over a second field of regard during a second time period.Type: GrantFiled: November 6, 2018Date of Patent: August 2, 2022Assignee: Echodyne Corp.Inventors: Tom Driscoll, John Desmond Hunt, Robert Tilman Worl, Muhammad Rameez Chatni, Aanand Esterberg, Kerem Karadayi, Christopher L. Lambrecht, Nathan Ingle Landy, Skyler Martens, Dominic Chun Kit Wu
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Patent number: 11211716Abstract: An embodiment of an antenna includes first and second transmission lines, first antenna elements, and second antenna elements. The first transmission line is configured to guide a first signal such that the first signal has a characteristic of a first value, and the second transmission line is configured to guide a second signal such that the second signal has the same characteristic but of a second value that is different than the first value. The first antenna elements are each disposed adjacent to the first transmission line and are each configured to radiate the first signal in response to a respective first control signal, and the second antenna elements are each disposed adjacent to the second transmission line and are each configured to radiate the second signal in response to a respective second control signal. Such an antenna can have better main-beam and side-lobe characteristics, and a better SIR, than prior antennas.Type: GrantFiled: August 26, 2019Date of Patent: December 28, 2021Assignee: Echodyne Corp.Inventors: Tom Driscoll, John Desmond Hunt, Nathan Ingle Landy, Milton Perque, Charles A. Renneberg, Ioannis Tzanidis, Robert Tilman Worl, Felix D. Yuen
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Patent number: 11163037Abstract: An embodiment of an antenna array includes a transmit antenna and a receive antenna. The transmit antenna has, in one dimension, a first size, and has, in another dimension that is approximately orthogonal to the one dimension, a second size that is greater than the first size. And the receive antenna has, in approximately the one dimension, a third size that is greater than the first size, and has, in approximately the other dimension, a fourth size that is less than the second size. For example, such an antenna array, and a radar system that incorporates the antenna array, can provide a high Rayleigh resolution (i.e., a narrow Half Power Beam Width (HPBW)) with significantly reduced aliasing as compared to prior antenna arrays and radar systems for a given number of antenna-array channels.Type: GrantFiled: June 26, 2018Date of Patent: November 2, 2021Assignee: Echodyne Corp.Inventors: Adam Bily, Tom Driscoll, John Desmond Hunt, Charles A. Renneberg, Ioannis Tzanidis, Robert Tilman Worl
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Antenna array having a different beam-steering resolution in one dimension than in another dimension
Patent number: 11101572Abstract: In an embodiment, an antenna includes a one-dimensional array of antenna cells, a signal feed, and signal couplers. The antenna cells are each spaced from an adjacent antenna cell by less than one half a wavelength at which the antenna cells are configured to transmit and to receive, are configured to generate an array beam that is narrower in a dimension than in an orthogonal dimension, and are configured to steer the array beam in the dimension. And the signal couplers are each configured to couple a respective one of the antenna cells to the signal feed in response a respective control signal having an active level. For example, the antenna cells can be arranged such that a straight line intersects their geometric centers.Type: GrantFiled: September 7, 2018Date of Patent: August 24, 2021Assignee: Echodyne Corp.Inventors: Adam Bily, Tom Driscoll, John Desmond Hunt, Charles A. Renneberg, Ioannis Tzanidis, Robert Tilman Worl -
Patent number: 10998628Abstract: Modulation patterns for surface scattering antennas provide desired antenna pattern attributes such as reduced side lobes and reduced grating lobes.Type: GrantFiled: October 3, 2017Date of Patent: May 4, 2021Assignee: Searete LLCInventors: Pai-Yen Chen, Tom Driscoll, Siamak Ebadi, John Desmond Hunt, Nathan Ingle Landy, Melroy Machado, Milton Perque, Jr., David R. Smith, Yaroslav A. Urzhumov
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Patent number: 10833380Abstract: The present disclosure provides systems and methods associated with mode conversion for electromagnetic field modification. A mode converting structure (holographic metamaterial) is formed with a distribution of dielectric constants chosen to convert an electromagnetic radiation pattern from a first mode to a second mode to attain a target electromagnetic radiation pattern that is different from the input electromagnetic radiation pattern. A solution to a holographic equation provides a sufficiently accurate approximation of a distribution of dielectric constants that can be used to form a mode converting device for use with one or more transmission lines, such as waveguides. One or more optimization algorithms can be used to improve the efficiency of the mode conversion.Type: GrantFiled: March 5, 2019Date of Patent: November 10, 2020Assignee: Elwha LLCInventors: Tom Driscoll, John Desmond Hunt, Nathan Ingle Landy, David R. Smith, Yaroslav A. Urzhumov
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Publication number: 20200309900Abstract: In an embodiment, an antenna subsystem includes a sparse receive antenna and an electronically steerable transmit antenna. The sparse receive antenna includes an array of electronically steerable receive elements each configured to receive a respective signal having a wavelength and each spaced apart from each adjacent one of the receive elements by a respective first distance that is more than one half of the wavelength. And the electronically steerable transmit antenna includes an array of transmit elements each configured to radiate a respective signal having the wavelength and each spaced apart from each adjacent one of the transmit elements by a respective second distance that is less than one half of the wavelength. To reduce aliasing, such an antenna subsystem can be operated to filter, spatially, a receive beam pattern generated by the receive antenna with a transmit beam pattern generated by the transmit antenna.Type: ApplicationFiled: June 16, 2020Publication date: October 1, 2020Applicant: Echodyne Corp.Inventors: Nicholas K. Brune, Muhammad Rameez Chatni, Tom Driscoll, Jonathan R. Hull, John Desmond Hunt, Christopher L. Lambrecht, Nathan Ingle Landy, Milton Perque, Charles A. Renneberg, Benjamin Sikes, Tarron Teeslink, Ioannis Tzanidis, Robert Tilman Worl, Adam Bily
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Patent number: 10727609Abstract: Surface scattering antennas with lumped elements provide adjustable radiation fields by adjustably coupling scattering elements along a wave-propagating structure. In some approaches, the surface scattering antenna is a multi-layer printed circuit board assembly, and the lumped elements are surface-mount components placed on an upper surface of the printed circuit board assembly. In some approaches, the scattering elements are adjusted by adjusting bias voltages for the lumped elements. In some approaches, the lumped elements include diodes or transistors.Type: GrantFiled: November 29, 2017Date of Patent: July 28, 2020Assignee: The Invention Science Fund I, LLCInventors: Pai-Yen Chen, Tom Driscoll, Siamak Ebadi, John Desmond Hunt, Nathan Ingle Landy, Melroy Machado, Jay Howard McCandless, Milton Perque, Jr., David R. Smith, Yaroslav A. Urzhumov
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Patent number: 10684354Abstract: In an embodiment, an antenna subsystem includes a sparse receive antenna and an electronically steerable transmit antenna. The sparse receive antenna includes an array of receive elements each configured to receive a respective signal having a wavelength and each spaced apart from each adjacent one of the receive elements by a respective first distance that is more than one half of the wavelength. And the electronically steerable transmit antenna includes an array of transmit elements each configured to radiate a respective signal having the wavelength and each spaced apart from each adjacent one of the transmit elements by a respective second distance that is less than one half of the wavelength. To reduce aliasing, such an antenna subsystem can be operated to filter, spatially, a receive beam pattern generated by the receive antenna with a transmit beam pattern generated by the transmit antenna.Type: GrantFiled: December 5, 2017Date of Patent: June 16, 2020Assignee: Echodyne Corp.Inventors: Nicholas K. Brune, Muhammad Rameez Chatni, Tom Driscoll, Jonathan R. Hull, John Desmond Hunt, Christopher L. Lambrecht, Nathan Ingle Landy, Milton Perque, Charles A. Renneberg, Benjamin Sikes, Tarron Teeslink, Ioannis Tzanidis, Robert Tilman Worl, Adam Bily
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Patent number: 10601130Abstract: An embodiment of an antenna comprises an array of antenna elements arranged in groups of antenna elements adjustably coupled to respective reference waves. A multiplicity of patterns of antenna coupling settings are defined, each of which gives rise to a main lobe which points the antenna in a particular direction, each pattern also giving rise to respective side lobes. First and second such patterns may point the antenna in the same direction but with non-identical side lobes. In this way the clutter level from the side lobes relative to the main lobe is much smaller than would be the case if one of the patterns were employed both for transmitting and receiving. Alternatively, the first and second patterns may be used in quick succession both for transmitting, or used in quick succession both for receiving. The antenna may also switch rapidly between patterns where the main lobe points in a different direction in each pattern, allowing dithering of the beam or rapid switching between scanning and tracking.Type: GrantFiled: July 20, 2017Date of Patent: March 24, 2020Assignee: Echodyne Corp.Inventors: Tom Driscoll, William F. Graves, Jr., John Desmond Hunt, Nathan Ingle Landy, Christopher L. Lambrecht, Milton Perque, Robert Tilman Worl
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Publication number: 20190379133Abstract: An embodiment of an antenna includes first and second transmission lines, first antenna elements, and second antenna elements. The first transmission line is configured to guide a first signal such that the first signal has a characteristic of a first value, and the second transmission line is configured to guide a second signal such that the second signal has the same characteristic but of a second value that is different than the first value. The first antenna elements are each disposed adjacent to the first transmission line and are each configured to radiate the first signal in response to a respective first control signal, and the second antenna elements are each disposed adjacent to the second transmission line and are each configured to radiate the second signal in response to a respective second control signal. Such an antenna can have better main-beam and side-lobe characteristics, and a better SIR, than prior antennas.Type: ApplicationFiled: August 26, 2019Publication date: December 12, 2019Applicant: Echodyne Corp.Inventors: Tom Driscoll, John Desmond Hunt, Nathan Ingle Landy, Milton Perque, Charles A. Renneberg, Ioannis Tzanidis, Robert Tilman Worl, Felix D. Yuen
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Patent number: 10446903Abstract: Surface scattering antennas on curved manifolds provide adjustable radiation fields by adjustably coupling scattering elements along a wave-propagating structure.Type: GrantFiled: May 13, 2015Date of Patent: October 15, 2019Assignee: The Invention Science Fund I, LLCInventors: Eric J. Black, Pai-Yen Chen, Brian Mark Deutsch, Tom Driscoll, Siamak Ebadi, John Desmond Hunt, Alexander Remley Katko, Nathan Ingle Landy, Melroy Machado, Milton Perque, Jr., David R. Smith, Yaroslav A. Urzhumov
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Publication number: 20190273298Abstract: The present disclosure provides systems and methods associated with mode conversion for electromagnetic field modification. A mode converting structure (holographic metamaterial) is formed with a distribution of dielectric constants chosen to convert an electromagnetic radiation pattern from a first mode to a second mode to attain a target electromagnetic radiation pattern that is different from the input electromagnetic radiation pattern. A solution to a holographic equation provides a sufficiently accurate approximation of a distribution of dielectric constants that can be used to form a mode converting device for use with one or more transmission lines, such as waveguides. One or more optimization algorithms can be used to improve the efficiency of the mode conversion.Type: ApplicationFiled: March 5, 2019Publication date: September 5, 2019Inventors: TOM DRISCOLL, John Desmond Hunt, Nathan Ingle Landy, David R. Smith, Yaroslav A. Urzhumov
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Patent number: 10396468Abstract: An embodiment of an antenna includes first and second transmission lines, first antenna elements, and second antenna elements. The first transmission line is configured to guide a first signal such that the first signal has a characteristic of a first value, and the second transmission line is configured to guide a second signal such that the second signal has the same characteristic but of a second value that is different than the first value. The first antenna elements are each disposed adjacent to the first transmission line and are each configured to radiate the first signal in response to a respective first control signal, and the second antenna elements are each disposed adjacent to the second transmission line and are each configured to radiate the second signal in response to a respective second control signal. Such an antenna can have better main-beam and side-lobe characteristics, and a better SIR, than prior antennas.Type: GrantFiled: August 18, 2016Date of Patent: August 27, 2019Assignee: Echodyne CorpInventors: Tom Driscoll, John Desmond Hunt, Nathan Ingle Landy, Milton Perque, Charles A. Renneberg, Ioannis Tzanidis, Robert Tilman Worl, Felix D. Yuen
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Patent number: 10320084Abstract: Surface scattering antennas provide adjustable radiation fields by adjustably coupling scattering elements along a wave-propagating structure. In some approaches, the scattering elements are complementary metamaterial elements. In some approaches, the scattering elements are made adjustable by disposing an electrically adjustable material, such as a liquid crystal, in proximity to the scattering elements. Methods and systems provide control and adjustment of surface scattering antennas for various applications.Type: GrantFiled: January 14, 2015Date of Patent: June 11, 2019Inventors: Adam Bily, Anna K. Boardman, Russell J. Hannigan, John Desmond Hunt, Nathan Kundtz, David R. Nash, Ryan Allan Stevenson, Philip A. Sullivan
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Publication number: 20190137601Abstract: An embodiment of a radar subsystem includes at least one antenna and a control circuit. The at least one antenna is configured to radiate at least one first transmit beam and to form at least one first receive beam. And the control circuit is configured to steer the at least one first transmit beam and the at least one first receive beam over a first field of regard during a first time period, and to steer the at least one first transmit beam and the at least one first receive beam over a second field of regard during a second time period.Type: ApplicationFiled: November 6, 2018Publication date: May 9, 2019Applicant: Echodyne CorpInventors: Tom Driscoll, John Desmond Hunt, Robert Tilman Worl, Muhammad Rameez Chatni, Aanand Esterberg, Kerem Karadayi, Christopher L. Lambrecht, Nathan Ingle Landy, Skyler Martens, Dominic Chun Kit Wu
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Patent number: 10236574Abstract: Described embodiments include an antenna and a method. In an embodiment, the antenna includes a holographic aperture having a surface including a plurality of individual electromagnetic wave scattering elements distributed thereon with a periodic inter-element spacing equal to or less than one-half of a free space wavelength of an operating frequency of the antenna. The aperture is configured to define at least two selectable complex radiofrequency electromagnetic fields on the surface with tangential wavenumbers up to 2? over the aperture element spacing (k_apt=2?/a). In an embodiment, the holographic aperture includes an amplitude and phase modulation holographic aperture.Type: GrantFiled: April 21, 2014Date of Patent: March 19, 2019Inventors: Pai-Yen Chen, Tom Driscoll, Siamak Ebadi, John Desmond Hunt, Nathan Ingle Landy, Melroy Machado, Milton Perque, Jr., David R. Smith, Yaroslav A. Urzhumov
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ANTENNA ARRAY HAVING A DIFFERENT BEAM-STEERING RESOLUTION IN ONE DIMENSION THAN IN ANOTHER DIMENSION
Publication number: 20190074600Abstract: In an embodiment, an antenna includes a one-dimensional array of antenna cells, a signal feed, and signal couplers. The antenna cells are each spaced from an adjacent antenna cell by less than one half a wavelength at which the antenna cells are configured to transmit and to receive, are configured to generate an array beam that is narrower in a dimension than in an orthogonal dimension, and are configured to steer the array beam in the dimension. And the signal couplers are each configured to couple a respective one of the antenna cells to the signal feed in response a respective control signal having an active level. For example, the antenna cells can be arranged such that a straight line intersects their geometric centers.Type: ApplicationFiled: September 7, 2018Publication date: March 7, 2019Applicant: Echodyne CorpInventors: Adam Bily, Tom Driscoll, John Desmond Hunt, Charles A. Renneberg, Ioannis Tzanidis, Robert Tilman Worl