Patents by Inventor Michael Boyarsky
Michael Boyarsky 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: 11990681Abstract: An apparatus includes a traveling-wave antenna array comprising a plurality of adjacent metamaterial surface antennas comprising a waveguide or a cavity, each adjacent metamaterial surface antenna comprising an array of metamaterial radiators coupled to a surface of the waveguide or the cavity, each metamaterial radiator comprising an individually addressable tunable component that can be tuned over a spectral bandwidth to generate different radiation patterns. The apparatus further includes a phase diversity feed coupled to the traveling-wave antenna array and configured to provide adjustable phase diverse input to two or more of the plurality of adjacent metamaterial surface antennas, the phase diverse input comprising a first phase for a first traveling-wave antenna and a second phase for a second traveling-wave antenna, the first phase being different from the second phase, wherein the phase diverse input is-selected to suppress grating lobes for a directed beam pattern selected for transmission.Type: GrantFiled: May 2, 2023Date of Patent: May 21, 2024Assignee: Duke UniversityInventors: Michael Boyarsky, Seyedmohammadreza Faghih Imani, David R. Smith
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Patent number: 11916291Abstract: According to various embodiments, systems and methods for spatial sampling in proximity to the Nyquist limit in traveling-wave antenna systems are disclosed. An apparatus can include a traveling-wave antenna array comprising a plurality of adjacent traveling-wave antennas that each include a plurality of tunable elements that are spaced at, near, or above a Nyquist limit spacing to form an array of tunable elements. The apparatus also includes a phase diversity feed coupled to the traveling-wave antenna array that is configured to provide input to the traveling-wave antenna array including phase diverse input to two or more of the plurality of adjacent traveling-wave antennas. Further, the apparatus includes a plurality of grayscale tuning elements configured to tune the plurality of tunable elements along one or more ranges of one or more tuning variables to form one or more specific output radiation patterns through the traveling-wave antenna array based on the input.Type: GrantFiled: June 6, 2023Date of Patent: February 27, 2024Assignee: Duke UniversityInventors: Michael Boyarsky, Timothy Sleasman, Jonah Gollub, Seyedmohammadreza Faghih Imani, David R. Smith
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Publication number: 20230352843Abstract: According to various embodiments, systems and methods for spatial sampling in proximity to the Nyquist limit in traveling-wave antenna systems are disclosed. An apparatus can include a traveling-wave antenna array comprising a plurality of adjacent traveling-wave antennas that each include a plurality of tunable elements that are spaced at, near, or above a Nyquist limit spacing to form an array of tunable elements. The apparatus also includes a phase diversity feed coupled to the traveling-wave antenna array that is configured to provide input to the traveling-wave antenna array including phase diverse input to two or more of the plurality of adjacent traveling-wave antennas. Further, the apparatus includes a plurality of grayscale tuning elements configured to tune the plurality of tunable elements along one or more ranges of one or more tuning variables to form one or more specific output radiation patterns through the traveling-wave antenna array based on the input.Type: ApplicationFiled: June 6, 2023Publication date: November 2, 2023Inventors: Michael Boyarsky, Timothy Sleasman, Jonah Gollub, Seyedmohammadreza Faghih Imani, David R. Smith
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Publication number: 20230352849Abstract: An apparatus includes a traveling-wave antenna array comprising a plurality of adjacent metamaterial surface antennas comprising a waveguide or a cavity, each adjacent metamaterial surface antenna comprising an array of metamaterial radiators coupled to a surface of the waveguide or the cavity, each metamaterial radiator comprising an individually addressable tunable component that can be tuned over a spectral bandwidth to generate different radiation patterns. The apparatus further includes a phase diversity feed coupled to the traveling-wave antenna array and configured to provide adjustable phase diverse input to two or more of the plurality of adjacent metamaterial surface antennas, the phase diverse input comprising a first phase for a first traveling-wave antenna and a second phase for a second traveling-wave antenna, the first phase being different from the second phase, wherein the phase diverse input is-selected to suppress grating lobes for a directed beam pattern selected for transmission.Type: ApplicationFiled: May 2, 2023Publication date: November 2, 2023Inventors: Michael BOYARSKY, Seyedmohammadreza FAGHIH IMANI, David R. SMITH
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Patent number: 11670861Abstract: According to various embodiments, systems and methods for spatial sampling in proximity to the Nyquist limit in traveling-wave antenna systems are disclosed. An apparatus can include a traveling-wave antenna array comprising a plurality of adjacent traveling-wave antennas that each include a plurality of tunable elements that are spaced at, near, or above a Nyquist limit spacing to form an array of tunable elements. The apparatus also includes a phase diversity feed coupled to the traveling-wave antenna array that is configured to provide input to the traveling-wave antenna array including phase diverse input to two or more of the plurality of adjacent traveling-wave antennas. Further, the apparatus includes a plurality of grayscale tuning elements configured to tune the plurality of tunable elements along one or more ranges of one or more tuning variables to form one or more specific output radiation patterns through the traveling-wave antenna array based on the input.Type: GrantFiled: November 25, 2020Date of Patent: June 6, 2023Assignee: Duke UniversityInventors: Michael Boyarsky, Timothy Sleasman, Jonah Gollub, Seyedmohammadreza Faghih Imani, David R. Smith
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Patent number: 11670867Abstract: According to various embodiments, systems and methods for suppressing grating lobes in a traveling-wave antenna system are disclosed. An apparatus can include a traveling-wave antenna array comprising a plurality of adjacent traveling-wave antennas. The apparatus also can include a phase diversity feed coupled to the traveling-wave antenna array. The phase diversity feed can be configured to provide phase diverse input to two or more of the plurality of adjacent traveling-wave antennas.Type: GrantFiled: November 23, 2020Date of Patent: June 6, 2023Assignee: Duke UniversityInventors: Michael Boyarsky, Seyedmohammadreza Faghih Imani, David R. Smith
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Patent number: 11598866Abstract: A single frequency, or very narrow frequency band, microwave imaging system is described herein. A microwave imaging system can include an array transmitter; an array receiver; and a computing device that receives signals detected from the array receiver, transforms the signals received by the array receiver into independent spatial measurements, constructs an image using the independent spatial measurements, and outputs a reconstructed image. The array transmitter and the array receiver may each have a plurality of independently controllable metasurface resonant elements.Type: GrantFiled: June 10, 2019Date of Patent: March 7, 2023Assignee: Duke UniversityInventors: Timothy Sleasman, Laura Pulido Mancera, Jonah Gollub, Michael Boyarsky, Thomas Fromenteze, Seyedmohammadreza Faghih Imani, David R. Smith
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Publication number: 20210210866Abstract: According to various embodiments, systems and methods for suppressing grating lobes in a traveling-wave antenna system are disclosed. An apparatus can include a traveling-wave antenna array comprising a plurality of adjacent traveling-wave antennas. The apparatus also can include a phase diversity feed coupled to the traveling-wave antenna array. The phase diversity feed can be configured to provide phase diverse input to two or more of the plurality of adjacent traveling-wave antennas.Type: ApplicationFiled: November 23, 2020Publication date: July 8, 2021Inventors: Michael BOYARSKY, Seyedmohammadreza FAGHI IMANI, David R. SMITH
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Publication number: 20210175630Abstract: According to various embodiments, systems and methods for spatial sampling in proximity to the Nyquist limit in traveling-wave antenna systems are disclosed. An apparatus can include a traveling-wave antenna array comprising a plurality of adjacent traveling-wave antennas that each include a plurality of tunable elements that are spaced at, near, or above a Nyquist limit spacing to form an array of tunable elements. The apparatus also includes a phase diversity feed coupled to the traveling-wave antenna array that is configured to provide input to the traveling-wave antenna array including phase diverse input to two or more of the plurality of adjacent traveling-wave antennas. Further, the apparatus includes a plurality of grayscale tuning elements configured to tune the plurality of tunable elements along one or more ranges of one or more tuning variables to form one or more specific output radiation patterns through the traveling-wave antenna array based on the input.Type: ApplicationFiled: November 25, 2020Publication date: June 10, 2021Inventors: Michael Boyarsky, Timothy Sleasman, Jonah Gollub, Seyedmohammadreza Faghih Imani, David R. Smith
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Publication number: 20190377084Abstract: A single frequency, or very narrow frequency band, microwave imaging system is described herein. A microwave imaging system can include an array transmitter; an array receiver; and a computing device that receives signals detected from the array receiver, transforms the signals received by the array receiver into independent spatial measurements, constructs an image using the independent spatial measurements, and outputs a reconstructed image. The array transmitter and the array receiver may each have a plurality of independently controllable metasurface resonant elements.Type: ApplicationFiled: June 10, 2019Publication date: December 12, 2019Inventors: Timothy Sleasman, Laura Pulido Mancera, Jonah Gollub, Michael Boyarsky, Thomas Fromenteze, Seyedmohammadreza Faghih Imani, David R. Smith
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Publication number: 20190346545Abstract: A single frequency, or very narrow frequency band, microwave imaging system is described herein. A microwave imaging system can include an array transmitter; an array receiver; and a computing device that receives signals detected from the array receiver, transforms the signals received by the array receiver into independent spatial measurements, constructs an image using the independent spatial measurements, and outputs a reconstructed image. The array transmitter and the array receiver may each have a plurality of independently controllable metasurface resonant elements.Type: ApplicationFiled: December 12, 2017Publication date: November 14, 2019Inventors: Timothy SLEASMAN, Laura Pulido MANCERA, Jonah GOLLUB, Michael BOYARSKY, Thomas FROMENTEZE, Seyedmohammadreza Faghih IMANI, David R. SMITH
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Publication number: 20190094408Abstract: According to various embodiments, systems and methods for through imaging a medium are disclosed. An apparatus can include one or more radiating elements comprising one or more artificially-structured materials. The one or more radiating elements can be configured to transmit a radiation pattern of electromagnetic energy into a medium. The apparatus also can include one or more receiving elements configured to receive backscattered energy from the radiation pattern of electromagnetic energy transmitted into the medium. The backscattered energy received by the one or more receiving elements can be used to generate one or more through images of the medium.Type: ApplicationFiled: September 21, 2018Publication date: March 28, 2019Inventors: Michael Boyarsky, Seyedmohammadreza Faghih Imani, Daniel L. Marks, Timothy Sleasman, David R. Smith, Okan Yurduseven